303 East B Street, Ontario, California 91764 Phone: 909.395.2036 / Fax: 909.395.2420
LAND DEVELOPMENT DIVISION
CONDITIONS OF APPROVAL
Date Prepared: 5/15/2026
File No: PSP24-003
Related Files: N/A
Project Description: A public hearing to consider the Eucalyptus Business Park Specific Plan (File No. PSP24-003) to establish the land use districts, development standards, design guidelines, infrastructure improvements, etc., for the potential development of 2,939,000 square feet of business park development, 10,000 square feet of commercial development and approximately 37-acres of open space/recreation on approximately 189 acres of land for property generally located along the northeast corner of Campus Avenue and Eucalyptus Avenue, within the SP (Specific Plan) and AG (Agricultural Overlay) zoning districts. The environmental impacts of this project were reviewed in conjunction with The Ontario Plan (TOP) 2050 Policy Plan Amendment (File No. PGPA25-002), for which a Supplemental Environmental Impact Report (State Clearinghouse No. 2025110102) was prepared. This application introduces no new significant environmental impacts. The proposed project is located within the Airport Influence Area of Ontario International Airport and was evaluated and found to be consistent with the policies and criteria of the Ontario International Airport Land Use Compatibility Plan. The project site is also located within the Airport Influence area of Chino Airport and was evaluated and found to be consistent with the policies and criteria of the Chino Airport Land Use Compatibility Plan; (APNs:1053-531-01, 1053-531-02, 1053-531-03, 1053-531-04, 1053-541-01, 1053-541-02, 1053-551-01, 1053-371-01, 1053-371-02, 1053-581-03, 1053-581-04, 0216-321-01, 0216-321-02, 0216-321-06, 0216- 321-07, 0216-322-01, 0216-322-02, 0216-322-10) submitted by Ontario Ranch Venture II, LLC. (c/o Sares Regis Group).
Prepared By: Luis E. Batres, Senior Planner
Phone: 909.395.2431 (direct)
Email: [email protected]
The Planning Department, Land Development Section, conditions of approval applicable to the above-described Project, are listed below. The Project shall comply with each condition of approval listed below:
1.0 Standard Conditions of Approval. The project shall comply with the Standard Conditions for New Development, adopted by City Council Resolution No. 2017-027 on April 18, 2017. A copy of the Standard Conditions for New Development may be obtained from the Planning Department or City Clerk/Records Management Department.
2.0 Special Conditions of Approval. In addition to the Standard Conditions for New Development identified in condition no. 1.0, above, the project shall comply with the following special conditions of approval:
523
Planning Department – Land Development Division
Conditions of Approval
File No.: PSP24-003
2.1 Specific Plan/Specific Plan Amendment. The following shall be submitted to the Planning Department within 45 days following City Council approval of the Specific Plan/Specific Plan Amendment:
(a) Two copies of the final approved Specific Plan document, bounded. (b) One complete, unbound copy of the final approved Specific Plan document.
(c) One USB drive, or download link, containing a complete Microsoft Word, or editable, copy of the final approved Specific Plan document, including original figures, images and all required revisions.
2.2 Additional Fees.
(a) Within 5 days following final application approval, the Notice of Determination (“NOD”) filing fee shall be provided to the Planning Department. The fee shall be paid by check, made payable to the "Clerk of the Board of Supervisors", which shall be forwarded to the San Bernardino County Clerk of the Board of Supervisors, along with all applicable environmental forms/notices, pursuant to the requirements of the California Environmental Quality Act (“CEQA”). Failure to provide said fee within the time specified will result in the extension of the statute of limitations for the filing of a CEQA lawsuit from 30 days to 180 days.
2.3 Mics.
(a) Approval of this Specific Plan is subject to the City Council approving File No. PGPA25-002, The Ontario Plan (TOP) 2050 Policy Plan Amendment. 524
Department: Utilities
Prepared By: Dennis Mejia
Staff Member Presenting: Scott Burton, Utilities
General Manager
Reviewed By: Dennice Raygoza, Courtney
Jones, Michael Sigsbee
Approved By:
Submitted To: Council/OHA
Approved: _______________________________
Continued To: ___________________________
Denied: __________________________________
Item No: 15
SUBJECT: A PUBLIC HEARING TO CONSIDER ADOPTING A RESOLUTION APPROVING A
MITIGATED NEGATIVE DECLARATION IN ACCORDANCE WITH THE CALIFORNIA
ENVIRONMENTAL QUALITY ACT (CEQA), AND ADOPTING A RELATED
MITIGATION MONITORING AND REPORTING PROGRAM FOR THE EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT, AND APPROVING THE PROJECT; AWARD CONSTRUCTION CONTRACT TO ALL CITIES ENGINEERING, INC., A PROFESSIONAL SERVICES AGREEMENT WITH ARDURRA GROUP, INC.,
AMENDMENTS TO THE PROFESSIONAL SERVICES AGREEMENTS WITH AKM CONSULTING ENGINEERS, INC., AND SMITH-EMERY LABORATORIES, INC., FOR
THE EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT
CITY OF ONTARIO
Agenda Report
July 7, 2026
SECTION:
PUBLIC HEARINGS
RECOMMENDATION: That the City Council take the following actions:
A. Conduct a Public hearing on the Mitigated Negative Declaration in accordance with the California Environmental Quality Act and adopting a Related Mitigation Monitoring and Reporting Program for the Euclid Avenue Recycled Water System Project, and Approving the Project.
B. Consider and adopt a Resolution approving a Mitigated Negative Declaration in accordance with the California Environmental Quality Act and adopting a Related Mitigation Monitoring and Reporting Program for the Euclid Avenue Recycled Water System Project, and Approving the Project.
C. Approve the plans and specifications and award Contract No. UT1072 to All Cities Engineering, Inc., of Riverside, California, for the construction of the Euclid Avenue Recycled Water System Project, in the amount of $11,778,501 plus a 15% contingency of $1,766,775, for a total not-to-exceed amount of $13,545,276, a term of 450 calendar days after issuance of notice to proceed, and authorize the City Manager, or his designee, to execute all documents required for the completion of the project including, but not limited to agreements, assessments, easements, lot line adjustments, reduction of retention accounts, contracts and contract amendments within the authorization limits, and filing a notice of completion at the conclusion of all construction related activities to the project.
D. Approve and authorize the City Manager, or his designee, to execute a Professional Services 525
Agreement for construction engineering services with Ardurra Group, Inc., of Newport Beach, California, for a total not-to-exceed amount of $936,902 and a term from July 7, 2026 to December 31, 2029.
E. Approve and authorize the City Manager, or his designee, to execute Amendment No. 3 to the On-Call Construction Management and Inspection Agreement with AKM Consulting Engineers, Inc., of Irvine, California, increasing the Agreement amount by $622,422 for a new total revised not-to-exceed amount of $2,875,952 and a term from June 4, 2024 through June 4, 2029.
F. Approve and authorize the City Manager, or his designee, to execute Amendment No. 3 to the On-Call Geotechnical and Material Testing Services Agreement with Smith-Emery Laboratories, Inc., of Los Angeles, California, increasing the Agreement amount by $124,095 for a new total revised not-to-exceed amount of $584,260 and a term from May 2, 2023 through May 2, 2028.
G. Reject the bid protest from Norstar Plumbing & Engineering, Inc., against All Cities Engineering, Inc., and Big Ben Engineering as without merit.
THE FOLLOWING COUNCIL GOALS ARE BEING ACHIEVED:
Operate in a Businesslike Manner
Invest in the Growth and Evolution of the City's Economy Invest in the City's Infrastructure (Water, Streets, Sewers, Parks, Storm Drains and Public Facilities)
FISCAL IMPACT: The recommended Contract award to All Cities Engineering, Inc., is for $11,778,501 plus a 15% contingency of $1,766,775, for a total not-to-exceed amount of $13,545,276. Proposed Professional Services Agreement with Ardurra Group, Inc., is for a total not-to-exceed amount of $936,902. Proposed Amendment No. 3 to AKM Consulting Engineers, Inc., increases the agreement by $622,422, for a new total revised not-to-exceed amount of $2,875,952. Proposed Amendment No. 3 to Smith-Emery Laboratories, Inc., increases the agreement by $124,095, for a new total revised not-to-exceed amount of $584,260. The total cost for the recommended action is $15,228,695.
If approved, additional appropriations will be included in the Water Capital fund at a future Quarterly Budget Update Report to City Council. There is no impact on the General Fund.
In 2023, the City was awarded $10 million in grant funding through the State Water Resources Control Board (SWRCB) Division of Financial Assistance through the California General Fund (AB-179) for the Euclid Avenue Recycled Water Project. Qualifying grant related expenses will be reimbursed through the State on a regular basis.
BACKGROUND & ANALYSIS: The City’s adopted 2020 Urban Water Management Plan (UWMP) identifies expansion of the recycled water system as a key strategy to reduce reliance on imported potable water and maintain a long-term sustainable supply. The City currently relies on imported water to irrigate and maintain portions of its infrastructure; transitioning to recycled water will reduce this dependence and provide a more drought-resilient supply. The Recycled Water Master Plan includes a Capital Improvement Program (CIP) to expand service to parks and other facilities 526
and to enhance the system for irrigation and approved industrial uses. Consistent with priorities established in the UWMP, CIP, and Recycled Water Master Plan, the UT1072 Euclid Avenue Recycled Water System Project will expand recycled water service within the Euclid Avenue corridor and extend service along Riverside Drive to support irrigation demands in these areas.
The project consists of installation of recycled water mains at multiple locations, including Euclid Avenue between Holt Boulevard and 4th Street with short branches along F Street, Flora Street, B Street, C Street, and E Street, as well as Riverside Drive between Euclid Avenue and Vineyard Avenue. Improvements include approximately 3,200 linear feet of 8-inch PVC recycled water main along Flora Street, Vine Avenue, and F Street; 5,200 linear feet of 8-inch PVC along Euclid Avenue; 500 linear feet of 8-inch PVC along B, C, and E Streets; and approximately 11,200 linear feet of 24- inch cement mortar lined and coated welded steel pipe along Riverside Drive (Exhibit “A”). The work will also include pavement repair and street restoration.
On March 17, 2026, fourteen (14) bids were received for the UT1072 Euclid Avenue Recycled Water System Project through the City’s electronic bid management system in response to Bid No. 1978.
The bids ranged from a low bid amount of $11,778,501 to a high bid amount of $19,015,900. The lowest four (4) bids are summarized below.
Bidder Location Amount
All Cities Engineering, Inc. Riverside, CA $11,778,501
Big Ben Engineering Irvine, CA $12,316,322
Norstar Plumbing &
Engineering, Inc.
Alta Loma, CA $12,392,682
T.E. Roberts Irvine, CA $14,006,617
On March 30, 2026, the City received a formal bid protest from the third-lowest bidder, Norstar Plumbing & Engineering Inc., alleging that the bids submitted by All Cities Engineering, Inc., and Big Ben Engineering were non-responsive due to non-compliance with California public works contracting requirements. On April 16, 2026, the City issued a written determination denying the protest. In its evaluation, the issue raised pertained to the bidder’s responsibility, which refers to the bidder’s trustworthiness, quality, fitness, capacity, and experience to satisfactorily perform the public works contract. Staff concluded that All Cities Engineering, Inc., demonstrated these attributes and denied the protest as to the balance as moot.
City denial of the bid protest accompanies this report (Exhibit “B”). After it was issued, the protester filed with the City a document characterized as an “appeal”, which also accompanies this report (Exhibit “C”). The “appeal” is improper, because the provision of the Municipal Code it attempts to cite (section 1-4.01 et seq of the Municipal Code ) is limited to administrative decisions rather than legislative actions such as contract awards (Cf. Mike Moore's 24-Hour Towing v. City of San Diego (1996) 45 Cal.App.4th 1294, 1303 (contract awards and acts leading up are legislative subject to traditional mandamus), Code of Civil Procedure section 1085 (traditional, legislative mandamus), and Code of Civil Procedure section 1094.5 (administrative mandate), but is addressed below. The protest invites the City to reject the two lowest bids and award its author a contract for an additional approximately $500,000 in taxpayer funds.
527
The appeal lacks legal or factual merit. It is undisputed that each subcontractor actually has an active registration with the Department of Industrial Relations. It is undisputed that the bidder and each subcontractor actually have an active certification with the California Air Resources Board. It is undisputed that the bidder actually has the licensure necessary to self-perform welding work, which includes a general engineering or general building license. The protester’s arguments that the bid be rejected despite that lacks merit because such issues are responsibility determinations rather than responsiveness determinations as a matter of constitutional due process law (City of Inglewood-L.A. County Civic Center Auth. v. Superior Court (1972) 7 Cal.3d 861; Great West Contractors, Inc. v. Irvine Unified School Dist. (2010) 187 Cal. App. 4th 1425; D.H. Williams Construction, Inc. v. Clovis Unified School Dist. (2007) 146 Cal.App.4th 757), and therefore can, and indeed must, be determined by considering evidence not appearing on the face of the bid. (Great West Contractors, Inc. v. Irvine Unified School Dist. (2010) 187 Cal. App. 4th 1425). Even if this were not the case, the result would be the same under responsiveness, because whether government records reflect licensure is subject to legislative notice as much as it is subject to judicial notice. (Murphy v. People of State of California (1912) 225 U.S. 623, 629; Azevedo v. Jordan (1965) 237 Cal.App.2d 521, 528) ;Cf. Evidence Code section 452).
Staff reviewed the apparent lowest bid and determined that All Cities Engineering, Inc., met the requirements for recommendation as the lowest responsive and responsible bidder.
Support services will be required during construction of the Euclid Avenue Recycled Water System Project. Ardurra Group, Inc., will provide construction engineering services as they are the Engineer of Record for the Project and have developed the project plans and specifications. AKM Consulting Engineers, Inc., will provide construction management and inspection services. The City first contracted with AKM Consulting Engineers, Inc., on June 4, 2024, after an extensive Request for Proposal selection process for on-call project management and inspection services. Smith-Emery Laboratories Inc. will provide geotechnical and material testing services. The City first contracted with Smith-Emery Laboratories, Inc., on May 2, 2023, after an extensive Request for Qualification selection process for on-call geotechnical and material testing services.
ENVIRONMENTAL REVIEW: The application is a project pursuant to the California Environmental Quality Act (Public Resources Code Section 21000 et seq.) (CEQA"), and an initial study has been prepared to determine possible environmental impacts. On the basis of the initial study, which indicated that all potential environmental impacts from the Project were less than significant or could be mitigated to a level of no significance, a Mitigated Negative Declaration was prepared pursuant to CEQA, the State CEQA Guidelines, and the City of Ontario Local CEQA Guidelines.
Furthermore, to ensure that the mitigation measures are implemented, a Mitigation Monitoring and Reporting Program has been prepared for the Project pursuant to CEQA Guidelines Section 15097, which specifies responsible agencies/departments, monitoring frequency, timing, and method of verification and possible sanctions for non-compliance with mitigation measures. The mitigation measures are separated into nine categories: Aesthetics, Air Quality, Biological Resources, Cultural Resources, Geology and Soils, Hazards and Hazardous Materials, Hydrology and Water Quality, Noise, and Transportation/Traffic. Implementation of the proposed project will require compliance with the mitigation measures.
528
EXHIBIT A
529
RESOLUTION NO. ________
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF ONTARIO,
CALIFORNIA, ADOPTING A MITIGATED NEGATIVE DECLARATION IN
ACCORDANCE WITH THE CALIFORNIA ENVIRONMENTAL QUALITY
ACT, AS AMENDED, ADOPTING A RELATED MITIGATION
MONITORING AND REPORTING PROGRAM FOR THE EUCLID
AVENUE RECYCLED WATER SYSTEM PROJECT AND APPROVING
THE PROJECT
WHEREAS, prior to the adoption of this Resolution, a Mitigated Negative Declaration(herein after referred to as the “MND”) for Euclid Avenue Recycled Water System Project was prepared and circulated, all in accordance with the requirements of the California Environmental Quality Act of 1970, together with state and local guidelines implementing said Act, all as amended to date (collectively referred to as "CEQA"); and WHEREAS, the Euclid Recycled Water System Project (“Project”) analyzed under the MND will implement a recycled water system as a means of reducing reliance on imported potable water sources and maintaining a long-term sustainable water supply.
WHEREAS, the MND concluded that implementation of the Project could result in a number of significant effects on the environment and identified mitigation measures that would reduce each of those significant effects to a less-than-significant level; and WHEREAS, in connection with the approval of a project involving the preparation of a MND that identifies one or more significant environmental effects, CEQA requires the approving authority of the lead agency to incorporate feasible mitigation measures that would reduce those significant environmental effects to a less-than-significant level; and WHEREAS, whenever a lead agency approves a project requiring the implementation of measures to mitigate or avoid significant effects on the environment, CEQA also requires a lead agency to adopt a Mitigation Monitoring and Reporting Program to ensure compliance with the mitigation measures during project implementation, and such a Mitigation Monitoring and Reporting Program has been prepared for the Project for consideration by the approving authority of the City of Ontario as lead agency for the Project (hereinafter referred to as the "MMRP"); and WHEREAS, the City of Ontario is the lead agency on the Project, and the City Council is the approving authority for the proposed approval to award, construct, and otherwise undertake the Project; and
WHEREAS, the City Council has reviewed and considered the MND and related MMRP for the Project, and intends to take actions on the Project in compliance with CEQA and state and local guidelines implementing CEQA; and
530
WHEREAS, the MND and related MMRP for the Project are on file in the City of Ontario City Hall, located at 303 E. B Street, Ontario, CA 91764, are available for inspection by any interested person at that location and are, by this reference, incorporated into this Resolution as if fully set forth herein.
NOW, THEREFORE, IT IS HEREBY FOUND, DETERMINED, AND RESOLVED by the City Council of the City of Ontario, as follows:
SECTION 1: Environmental Determination and Findings. As the lead agency for the Project, the City Council has reviewed and considered the information contained in the MND and the administrative record for the Project, including all written and oral evidence provided during the comment period. Based upon the facts and information contained in the MND and the administrative record, including all written and oral evidence presented to the City Council, the City Council finds as follows:
(1) The MND and administrative record have been completed in compliance with CEQA, the State CEQA Guidelines, and the City of Ontario Local CEQA Guidelines; and
(2) The MND contains a complete and accurate reporting of the environmental impacts associated with the Project and reflects the independent judgment of the City Council; and
(3) There is no substantial evidence in the administrative record supporting a fair argument that the Project may result in significant environmental impacts; and (4) All environmental impacts of the Project are either insignificant or can be mitigated to a less-than-significant level via implementation of the mitigation measures recommended in the MND and documented in the related MMRP.
SECTION 2: City Council Action. The City Council does hereby find that based upon the entire record of proceedings before it, and all information received, that there is no substantial evidence that the Project will have a significant effect on the environment and does hereby approve and adopt the MND and related MMRP prepared for the Project, attached hereto as "Attachment A," and incorporated herein by this reference, and directs staff to post and file a Notice of Determination with the County Clerk and the Office of Land Use & Climate Innovation.
SECTION 3: Approval: The City Council does hereby approve the Project.
SECTION 4: Custodian of Records. The documents and materials that constitute the record of proceedings on which these findings have been based are located at the City of Ontario City Hall, 303 E. B Street, Ontario, California 91764. The custodian for these records is the City Clerk of the City of Ontario.
SECTION 5: Certification to Adoption. The City Clerk shall certify to the adoption of the Resolution.
531
PASSED, APPROVED, AND ADOPTED this 7
th day of July 2026.
_____________________________________
PAUL S. LEON, MAYOR
ATTEST:
____________________________________
SHEILA MAUTZ, CITY CLERK
APPROVED AS TO FORM:
____________________________________
BEST BEST & KRIEGER LLP
CITY ATTORNEY
532
STATE OF CALIFORNIA )
COUNTY OF SAN BERNARDINO )
CITY OF ONTARIO )
I, SHEILA MAUTZ, City Clerk of the City of Ontario, DO HEREBY CERTIFY that foregoing Resolution No. 2026- was duly passed and adopted by the City Council of the City of Ontario at their regular meeting held July 7, 2026 by the following roll call vote, to wit:
AYES: COUNCIL MEMBERS:
NOES: COUNCIL MEMBERS:
ABSENT: COUNCIL MEMBERS:
____________________________________
SHEILA MAUTZ, CITY CLERK
(SEAL)
The foregoing is the original of Resolution No. 2026- duly passed and adopted by the Ontario City Council at their regular meeting held July 7, 2026. _____________________________________
SHEILA MAUTZ, CITY CLERK
(SEAL)
533
ATTACHMENT A:
Mitigated Negative Declaration and Mitigation
Monitoring and Reporting Program
(Mitigated Negative Declaration and Mitigation Monitoring and Reporting Program follows this page)
534
ARDURRA GROUP
JUNE 2, 2025
DRAFT INITIAL STUDY/ MITIGATED NEGATIVE DECLARATION
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT
ONTARIO, CALIFORNIA
PREPARED FOR:
ONTARIO MUNICIPAL UTILITIES COMPANY
1425 SOUTH BON VIEW AVENUE, ONTARIO, CA 91761
PREPARED BY:
535
i
INITIAL STUDY/
MITIGATED NEGATIVE DECLARATION
Dra
For the proposed:
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT
ONTARIO, CALIFORNIA
PREPARED FOR:
ONTARIO MUNICIPAL UTILITIES COMPANY
1425 S. Bon View Avenue
Ontario, CA 91761
909-395-2676
PREPARED BY:
ARDURRA GROUP
3737 Birch Street, Suite 250
Newport Beach, CA 96220
JUNE 2, 2025
536
(Inten6onally Blank Page)
537
i
TABLE OF CONTENTS
ABBREVIATIONS……………………………………………………………………………………………………………………………………..iii INTENDED USE OF THIS DOCUMENT ............................................................................................................ 1 PROJECT BACKGROUND .............................................................................................................................. 12 PROJECT LOCATION .................................................................................................................................... 12 ENVIRONMENTAL FACTORS POTENTIALLY AFFECTED: ............................................................................... 17 DETERMINATION......................................................................................................................................... 17 PROJECT DESCRIPTION ................................................................................................................................ 18 EVALUATION OF ENVIRONMENTAL IMPACTS: ........................................................................................... 52 CHECKLIST ................................................................................................................................................... 53 EXPLANATION OF ISSUES ............................................................................................................................ 60
1. AESTHETICS ............................................................................................................................................. 60
2. AGRICULTURE AND FORESTRY RESOURCES ............................................................................................ 73
3. AIR QUALITY ............................................................................................................................................ 77
4. BIOLOGICAL RESOURCES ......................................................................................................................... 85
5. CULTURAL RESOURCES ........................................................................................................................... 92
6. ENERGY ................................................................................................................................................. 100
7. GEOLOGY AND SOILS............................................................................................................................. 103
8. GREENHOUSE GAS EMISSIONS ............................................................................................................. 109
9. HAZARDS AND HAZARDOUS MATERIALS .............................................................................................. 113
10. HYDROLOGY AND WATER QUALITY .................................................................................................... 120
11. LAND USE AND PLANNING .................................................................................................................. 130
12. MINERAL RESOURCES ......................................................................................................................... 133
13. NOISE .................................................................................................................................................. 135
14. POPULATION AND HOUSING .............................................................................................................. 145
15. PUBLIC SERVICES ................................................................................................................................. 147
16. RECREATION ........................................................................................................................................ 152
17. TRANSPORTATION .............................................................................................................................. 154
18. TRIBAL CULTURAL RESOURCES: TO BE COMPLETED PER CONSULTATION SCHEDULE ....................... 157
19. UTILITIES AND SERVICES ..................................................................................................................... 160
20. WILDFIRE ............................................................................................................................................. 164
21. MANDATORY FINDINGS OF SIGNIFICANCE ......................................................................................... 167 EARLIER ANALYSIS ..................................................................................................................................... 169 MITIGATION MEASURES ........................................................................................................................... 170 MITIGATION MONITORING AND REPORTING PROGRAM (SEPARATE COVER) ......................................... 187 REPORT PREPRATION ................................................................................................................................ 188 DEFINITIONS .............................................................................................................................................. 189 REFERENCES .............................................................................................................................................. 191 APPENDICIES (SEPARATE COVER) ............................................................................................................. 197
FIGURES
FIGURE 1- REGIONAL LOCATION ........................................................................................................................................ 33 FIGURE 2- LOCAL VICINITY KEY MAP .................................................................................................................................. 34 FIGURE 2A- NORTHERN PORTION LOCAL VICINITY MAP .................................................................................................. 35 538
ii
FIGURE 2B- SOUTHERN PORTION LOCAL VICINITY MAP ................................................................................................... 36 FIGURE 3A- NORTHERN PORTION LAND USE MAP ........................................................................................................... 37 FIGURE 3B- SOUTHERN PORTION LAND USE MAP ............................................................................................................ 38 FIGURE 4A- NORTHERN PORTION ZONING MAP .............................................................................................................. 39 FIGURE 4B- SOUTHERN PORTION ZONING MAP ............................................................................................................... 40 FIGURE 5A- PHOTO LOCATION KEY MAP ........................................................................................................................... 41 FIGURE 5B- PHOTO LOCATION KEY MAP ........................................................................................................................... 42 FIGURE 6A – 6G- SITE PHOTOS ........................................................................................................................................... 43 FIGURE 7- RECYCLED WATER DISTRIBUTION PROJECT PHASES AND COMPONENTS ..................................................... 51 FIGURE 8- FLOOD ZONES WITHIN THE PROJECT ALIGNMENT ....................................................................................... 129 FIGURE 9A- NOISE MEASUREMENTS (NORTHERN PORTION) ........................................................................................ 143 FIGURE 9B- NOISE MEASUREMENTS (SOUTHERN PORTION) ......................................................................................... 144
TABLES
TABLE 1: PREVIOUSLY APPROVED RECYCLED WATER DISTRIBUTION SYSTEM…………………………………………………………….3 TABLE 2: RWDS CERTIFIED IS/MND (SCH# 2016081019) PREVIOUS MITIGATION MEASURES……….…………………………...6 TABLE 3: SURROUNDING ADJACENT LAND USES AT PROJECT SEGMENTS ...................................................................... 13 TABLE 4: SURROUNDING LAND USE AND FACILITIES WITHIN THE LOCAL VICINTIY OF THE PROJECT ........................... 14 TABLE 5: SUMMARY OF AGENCY APPROVALS ................................................................................................................... 16 TABLE 6: PROJECT COMPONENTS (APE) ............................................................................................................................ 24 TABLE 7: TREE MAINTENANCE RECOMMENDATIONS ...................................................................................................... 65 TABLE 8: FEDERAL AND STATE POLLUTANT STANDARDS ................................................................................................. 78 TABLE 9: SOUTH COAST AIR QULAITY MANAGEMENT DISTRICT ATTAINMENT STATUS…………………………………………...79 TABLE 10: AMBIENT AIR QUALITY MONITORING SUMMARY ........................................................................................... 81 TABLE 11: CITY OF ONTARIO AIR POLLUTANT EMISSIONS INVENTORY ........................................................................... 82 TABLE 12: CONSTRUCTION RELATED REGIONAL POLLUTANT EMISSIONS ...................................................................... 83 TABLE 13: MAXIMUM NUMBER OF ACRES DISTURBED PER DAY ..................................................................................... 83 TABLE 14: LOCAL CONSTRUCTION EMISSIONS AT THE NEAREST RECEPTORS ................................................................ 83 TABLE 15:CULTURAL RESOURCES AND REPORTSWITHIN ONE-HALF MILE OF THE PROJECT AREA ............................... 97 TABLE 16: FUEL CONSUMPTION RATE FACTORS (BHP-HR/GAL) .................................................................................... 101 TABLE 17: EXISTING CITY OF ONTARIO GHG EMISSIONS INVENTORY ........................................................................... 110 TABLE 18: PROJECT RELATED GREEHOUS GAS EMISSIONS ............................................................................................ 111 TABLE 19: CITY OF ONTARIO GENERAL PLAN SAFETY ELEMENT POLICIES .................................................................... 118 TABLE 20: LISTED IMPAIRED WATER BODIES .................................................................................................................. 124 TABLE 21: CONSTRUCTION NOISE LEVELS (DBA LEQ) IN LIGHT OF FTA THRESHOLDS ................................................... 139 TABLE 22: CONSTRUCTION NOISE LEVELS (DBA LEQ) IN LIGHT OF FTA THRESHOLDS- SECOND DAY ........................... 140 TABLE 23: CONSTRUCTION EQUIPMENT VIBRATION SOURCE LEVELS .......................................................................... 141
APPENDICIES
APPENDIX A: Air Quality and Greenhouse Gas Impact Study/Energy (Ganddini 2024) APPENDIX B: Biological Resources (ELMT 2024)
APPENDIX C: Tree Survey and Arborist Report (CalPacific 2024) APPENDIX D: Cultural/Archaeological/Tribal/ Paleontological Resources Report (BCR Consul6ng 2024) APPENDIX E: Soils and Geotechnical (NOVA Service 2024)
APPENDIX F: Noise Technical Memo (Ganddini 2024)
539
iii
ABBREVITATIONS
AGS
APN
Above Ground Surface
Assessor’s Parcel Number
PM2.5 Particulate Matter 2.5 micrometers or less in
diameter
ARB
AAQS
California Air Resources Board
Ambient Air Quality Standards
PRC
PRZ/TPA
ROG
Public Resources Code
Protected Root Zone/Tree Protection Zone
Reactive Organic Gases
BMP Best Management Practice ROW Right-of-Way
CalEEMod California Emissions Estimator Model RTP Regional Transportation Plan CalEPA California Environmental Protection Agency RWQCB Regional Water Quality Control Board CalFIRE California Department of Forestry and Fire Protection RWDS Recycled Water Distribution System Project CalGREEN California Green Building Standards Code SLF Sacred Lands File Search CalTrans California Department of Transportation SC Standard Conditions CDF
CDFW
Character Defining Features
California Department of Fish and Wildlife
SHPO
SOIS
State Historic Preservation Officer
Secretary of Interior’s Standards
CEQA California Environmental Quality Act SR State Route CLG
CESA
Certified Local Government
California Endangered Species Act
SWPPP
SWRCB
Storm Water Pollution Prevention Plan
State Water Resources Control Board
CNDDB California Natural Diversity Data Base TAC Toxic Air Contaminant CNEL Community Noise Equivalent Level
CRHR
CO
California Register of Historical Resources
Carbon Monoxide
USFWS
UST
U.S. Fish and Wildlife Service
Underground Storage Tank
CO2e
CWA
CRHR
Carbon Dioxide Equivalent
Clean Water Act
California Register of Historical Resources
VMT Vehicle Miles Traveled
CRZ
dB
dBA or dB(A)
dBA Leq
Critical Root Zone
Decibel
Decibel “A-Weighted”
Average Noise Level over a Period of Time
DTLA
DTSC
Downtown Los Angeles
California Department of Toxic Substances Control
EIR Environmental Impact Report
EPA U.S. Environmental Protection Agency
ESA Endangered Species Act (federal)
EOC
FEMA
FHWA
Emergency Operations Center
Federal Emergency Management Agency
Federal Highway Administration
GAMAQI Guide for Assessing and Mitigating Air Quality Impacts GHG Greenhouse Gas
GPM Gallons per minute
HPTMP
IS/MND
Historic Property Treatment and Management Plan
Initial Study/ Mitigated Negative Declaration
Ldn Day-Night Average Sound Level
LID Low Impact Development
LHMP
LOS
Local Hazard Mitigation Plan
Level of Service
MGD
MLD
MM
Million gallons per day
Most Likely Descendent
Mitigation Measures
MOU
MS4
Memorandum of Understanding
Municipal Separate Storm Sewer System
NESHAP National Emissions Standards for Hazardous Air Pollutants NHPA
NOx
National Historic Preservation Act
Nitrogen Oxides
NPDES
NRHP
National Pollutant Discharge Elimination System
National Register of Historic Places
OPR California Governor’s Office of Planning and Research 540
iv
(Inten0onally Blank Page)
541
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 1 INTRODUCTION
INTENDED USE OF THIS DOCUMENT
This is an Ini0al Study/Mi0gated Nega0ve Declara0on (IS/MND) that has been wri@en to provide objec0ve analysis and full disclosure on the level of impacts from implementa0on of the Euclid Avenue Recycled Water System Project, hereaFer referred to as the “current Project” and “Project.” The Project is proposed to implement por0ons of the previously approved Recycled Water Distribu0on System (RWDS) project that was originally approved by the City of Ontario in 2016 (SCH# 2016081019). This report is intended to be u0lized as an informa0onal report on environmental impacts and compliance with the California Environmental Quality Act (CEQA); it is intended for use during the discre0onary approval process for the current Project; therefore, environmental analysis in this IS/MND and other informa0on in the City’s administra0ve record will be considered for Project approval or denial. This document is wri@en in compliance with the City of Ontario’s Local CEQA Guidelines, CEQA Statue (Public Resources Code 21000-21189), and CEQA Guidelines (California Code of Regula0ons, Title 14, Division 6, Chapter 3, Sec0ons 15000-15387). The City of Ontario Municipal U0li0es Company (OMUC) is the Lead Agency responsible for CEQA compliance for the Project and is hereaFer referred to as both the “City” and “Ontario”.
This document provides analysis and conclusions regarding environmental changes from the Project, according to the 90 Percent Design Plans and Specifica0ons, Tree Removal Plan, and Landscape Replacement Plan, and the Mi0ga0on Monitoring and Repor0ng Program (MMRP) for the Project.
Informa0on from technical studies that were prepared for the Project on Air Quality, Greenhouse Gases, Energy, Noise, Cultural Resources, Biological Resources, and an Arborist Report and Tree Survey have been incorporated into this document. Informa0on from previous environmental studies prepared by the City of Ontario for the General Plan (The Ontario Plan) and EIR, Water Master Plan, and the IS/MND for the Ontario RWDS project are also incorporated into his document.
The City’s compliance with AB 52, formal Tribal Consulta0on for the Project, began on November 5, 2024, and concluded on November 14, 2024; formal Tribal Consulta0on under AB 52 is complete. The City received wri@en correspondence from the Yuhaaviatam of San Manuel Na0on (YSMN) on November 14, 2024. YSMN is formerly the San Manuel Band of Mission Indians and has requested Project mi0ga0on requiring that the Tribe be no0fied of buried resources if found during construc0on. The Tribe’s request is incorporated in this document within Tribal Cultural Resources, Sec0on 18 of this ISMND, in Appendix D, and in the MMRP Mi0ga0on Measures MM CUL-01 through CUL-04.
The extension of the recycled water system is considered a Project under CEQA and the City’s Local CEQA Guidelines because it requires discre0onary approval and permits and has the poten0al to result in significant impacts without mi0ga0on. The Project does not meet the defini0on of an exemp0on under the City’s Local CEQA Guidelines or CEQA Statute and Guidelines (Public Resources Code 21000-21189 and California Code of Regula0ons, Title 14, Division 6, Chapter 3, Sec0ons 15000-15387). The use of an IS/MND requires 30-day circula0on for public review and comment on the Project. This IS/MND has been circulated for 30-day public review beginning on June 2, 2025, and ending on July 2, 2025, in compliance with CEQA.
Stakeholder input was received and incorporated into the IS/MND from formal AB 52 Tribal Consulta0on between Ontario and local Tribes from the Na0ve American Heritage Commission (NAHC) List. Input from state and local Trustee and Responsible Agencies, as defined in CEQA, and from other interested par0es 542
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 2 received during the 30-day public review period for CEQA will be incorporated and used to finalize this IS/MND for the Project.
CEQA REQUIREMENTS FOR A MITIGATED NEGATIVE DECLARATION
The founda0on of the IS/MND is the Environmental Checklist - Form F referenced in the Local CEQA Guidelines and in Sec0on 15063 (d) (3) of the State CEQA Guidelines. The responses to the Checklist ques0ons about the proposed Project, found in “Explana0on of Issues,” indicate less than significant environmental impacts with the implementa0on of the MMRP for the Project. Ontario has determined that an IS/MND is the appropriate level of review for CEQA compliance, and an EIR is not needed.
The Project will extend the exis0ng recycled water system to irrigate por0ons of the Euclid Avenue Parkways, other exis0ng public open space and parks near the south and west city limits. The Project design has been modified to avoid significant impacts to the greatest extent feasible. The Project is consistent with The Ontario Plan, Capital Improvement Program (CIP), and Water Master Plan (WMP) (SCH# 2021070364; ONT 2022); therefore, the Project will not result in cumula0ve or growth inducing impacts. Over the Long-term, the Project will be operated and maintained in accordance with Ontario’s Municipal Code. Poten0ally significant temporary construc0on impacts will be reduced to less than significant levels with implementa0on of Best Management Prac0ces (BMP), Ontario’s Standard Condi0ons (SC), and Mi0ga0on Measures (MM) listed in the MMRP for the Project; the MMRP iden0fies 0ming, responsible par0es and ac0vi0es that will reduce Project impacts to less than significant levels.
The MMRP for the Project includes mi0ga0on measures from the previously cer0fied RWDS IS/MND (see Table 2: RWDS CERTIFIED IS/MND (SCH# 2016081019) PREVIOUS MITIGATION MEASURES. The MMRP will be implemented with the Project; as a result, this IS/MND indicates Project consistency with the Local CEQA Guidelines and CEQA Guidelines §15070, that an MND is appropriate when:
a. The Project Ini0al Study iden0fies poten0ally significant effects, but: revisions to the Project plan were made that would avoid, or reduce the effects to a point where clearly no significant effects would occur, and
b. There is no substan0al evidence that the Project, as revised, may have a significant effect on the environment.
PREVIOUS APPROVALS RELATED TO THE PROJECT
The Project will implement Ontario’s goals for sustainable use of potable water that have been iden0fied in The Ontario Plan, GP EIR, and WMP by improving recycled water infrastructure for landscape irriga0on; it will construct por0ons of the previously approved RWDS project along Euclid Avenue and E. Riverside Drive and will improve recycled water distribu0on within the Ontario Downtown District, Euclid Avenue Historic Property, and Euclid Avenue Historic District located along por0ons of Euclid Avenue between 4 th
Street and E. Riverside Avenue, within Ontario’s Downtown and Civic Center, and north of E. Riverside Avenue near the southern and western city limits.
City of Ontario Water Master Plan, The Ontario Plan, and General Plan EIR Ontario’s approved WMP, The Ontario Plan, and GP EIR iden0fy policies in support of phased construc0on of a recycled water system to reduce use of potable water for irriga0on. These policies promote delivery of recycled water supplied by Inland Empire U0li0es Agency throughout Ontario’s Plan Area for landscape irriga0on of public open space to reduce Ontario’s reliance potable water.
Euclid Avenue Historic Property Treatment and Management Plan (HPTMP) The northern part of the Project is referred to as the “Northern Por0on” within the boundaries of the Caltrans relinquishment of State Route (SR) SR-83. Caltrans relinquished Euclid Avenue to the City of 543
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 3 Ontario between the Interstate 10 (I-10) Freeway to Merrill Avenue; This ac0on was completed in April 2024. This requires Ontario’s commitment to preserve por0ons of Euclid Avenue as a Historic Property in a manner that is aligned with the Secretary of Interior's Standards (SOIS) for the Treatment of Historic Proper0es Guidelines for Preserving, Rehabilita0ng, Restoring & Reconstruc0ng Historic Buildings and the Na0onal Historic Preserva0on Act (NHPA). SOIS requirements apply to Euclid Avenue ROW and are established as requirements for ongoing maintenance to protect the Character-Defining Features (CDF) of Euclid Avenue. CDF protec0on must be consistent with the NHPA, Sec0on 106 and a Memorandum of Understanding (MOU) between Caltrans and the State Historic Preserva0on Officer (SHPO) for Euclid Avenue ROW. Examples of protected resources include historic-era structures, trees, and infrastructure that are related to and part of the original Euclid Avenue design.
Ontario is a Cer0fied Local Government (CLG); as such, the City is responsible under the Ontario Municipal Code to protect historic resources within city limits. As a CLG, Ontario is required to maintain and protect CDF for Euclid Avenue. CDF for Euclid Avenue have been defined and inventoried by Caltrans, the City, and stakeholders during the process of HPTMP approval and the Euclid Avenue relinquishment. The HPTMP func0ons as a protec0ve covenant/agreement to protect Euclid Avenue as a historical resource in the future and to supplement the requirements of Ontario’s Historic Preserva0on Ordinance as it specifically relates to Euclid Avenue ROW. Within the Northern Por0on of the Project, Euclid Avenue is listed as a historical resource on the Na0onal Register of Historic Places (NRHP). It was also automa0cally placed on California Register of Historical Resources (CRHR) and is subject to protec0on under Ontario’s Historic Preserva0on Ordinance.
City of Ontario’s Approved Recycled Water Distribu.on System (RWDS) Ontario’s RWDS Project was originally cer0fied for CEQA compliance with IS/MND, SCH# 2016081019; (ONT 2016). RWDS proposed to improve the recycled water system and to fulfill Ontario’s GP goals and policies for state-mandated conserva0on under standards from the State Water Board’s emergency conserva0on regula0ons. RWDS proposed recycled water pipeline improvements along two primary distribu0on pipelines: Euclid Avenue; and E. Riverside Drive; this project included a booster pump sta0on.
The current Project proposes recycled water pipeline along Euclid Avenue and E. Riverside Drive and will extend new recycled water mains from these two primary distribu0on corridors within city streets of the Euclid Avenue Historic District (to the west and east of Euclid Avenue and north of E. Holt Boulevard); conversion of some exis0ng water mains within this area for recycled water as well as modifica0on and connec0on to exis0ng irriga0on systems is proposed. Some proposed alignments with the current Project were not previously considered with the approved RWDS. See Table 1 Previously Approved Recycled Water Distribu/on System, Figure 7: Recycled Water Distribu/on Project Proposed Phases and Components and Table 2: RWDS Cer/fied IS/MND Mi/ga/on Measures; All mi0ga0on measures from the RWDS IS/MND (SCH# 2016081019) with footnotes describing applicability to the Project are listed in Table 2.
TABLE 1: PREVIOUSLY APPROVED RECYCLED WATER DISTRIBUTION SYSTEM Original
Phases
Route Descrip6on Descrip6on Proposed Project
Consistency
Proposed Euclid Avenue Alignment
Phase IConnec6on
Points
Euclid Avenue Three Alterna6ves.
Alterna6ve 1- Just north of 4th Street
Alterna6ve 2- Just south of 5th Street – por6ons of the abandoned 12” main have been removed or capped,
this loca6on will require the installa6on of a new 12”
steel sleeve connec6ng the median areas across 5th
Street.
A por6on of the Project
is consistent with
Alterna6ve 1. This is
the proposed northerly
Project connec6on to
the IEUA exis6ng
recycled water main at
544
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 4 Original
Phases
Route Descrip6on Descrip6on Proposed Project
Consistency
Alterna6ve 3- Just north of 6th Street – por6ons of the abandoned 12” main have been removed or capped,
this loca6on will require the installa6on of a new 12”
steel sleeve connec6ng the median areas across 6th
Street
the 4th Street and Euclid
Avenue.
Phase IIARecycled
Water
Transmission
Main
Euclid Avenue
Riverside to “D” Street
Two Alterna6ves.
Alterna6ve 1- NB side of Euclid, in the lane closest to the median
Alterna6ve 2- Center median of Euclid Avenue,
connec6on to landscape irriga6on within median will be
provided via laterals
A por6on of the Project
is consistent with
Alterna6ve 1 & 2.
Phase IIBLaterals Off
Booster
Sta6on and
Service
Laterals
Francis Street
Euclid Avenue to Bon
View Avenue
No Alterna6ves due to exis6ng land use.
1050 pressure zone pipeline: 2 feet to 2.5 feet south of the street centerline
1220 pressure zone pipeline: north of the street
centerline due to limited space on the side of the
street
Not part of the
Proposed Project.
Bon View Avenue
Francis Street to
Philadelphia Street
Two Alterna6ves.
Alterna6ve 1- NB side of Bon View Avenue, lane closest
to the median
Alterna6ve 2- 25-feet west of the street centerline
beginning at the intersec6on of Francis and Bon View
Avenue, con6nues south approx. 250-Q, the pipeline
shiQs 20-Q east of the street centerline just north of
Grevillea Court to leave room for the future 36-inch
storm drain
Not part of the
Proposed Project.
Philadelphia Street
Bon View Avenue to
Baker Avenue
No Alterna6ves due to exis6ng land use.
Proposed between exis6ng 30-inch sewer and exis6ng
12-inch sewer; approx. 800-Q of pipeline is proposed
27-Q north of the street center line, between
Cucamonga Ave and Grove Ave, due to conflict with
exis6ng 36-inch sewer line
Not part of the
Proposed Project.
Walnut Street
Euclid Avenue to Campus
Avenue
No Alterna6ves due to exis6ng land use.
14-feet north of the street centerline, which lines up
with the proposed recycled water pipeline at Euclid
Avenue
Not part of the
Proposed Project.
Campus Avenue
Centennial Park to
Philadelphia Street
No Alterna6ves due to exis6ng land use.
10-feet west of the street centerline
Not part of the
Proposed Project.
Philadelphia Street
Campus Avenue to Bon
View Avenue
No Alterna6ves due to exis6ng land use.
6-feet north of the street centerline, between exis6ng
36-inch sewer and 12-inch waterline
Not part of the
Proposed Project.
Phase IICBooster Pump
Sta6on
Booster Sta6on Four Alterna6ves.
1- South Bon View Avenue (North of South Bon View
Park)
2A- East Francis Street (West of E Francis Street and S Bon View Avenue Intersec6on)
2B- East Francis Street (East of E Francis Street and S Bon View Avenue Intersec6on)
3- South Bon View Avenue (Vacant Lot)
Not part of the
Proposed Project.
Phase IIIAService
Laterals
Francis Street
Oaks Avenue to Euclid
Avenue
No Alterna6ves due to exis6ng land use.
Approx. 2-feet south of the street centerline
Not part of the
Proposed Project.
Oaks Avenue
Homer Briggs Park to
Francis Street
No Alterna6ves due to exis6ng land use. Not part of the Proposed Project.
545
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 5 Original
Phases
Route Descrip6on Descrip6on Proposed Project
Consistency
Cypress Avenue
Francis Street to
Philadelphia Street
No Alterna6ves due to exis6ng land use. Not part of the Proposed Project.
Philadelphia Street
Cypress Avenue to
Ontario Chris6an High
School
No Alterna6ves due to exis6ng land use.
EB side of Philadelphia Street, in the lane closest to the centerline
Not part of the
Proposed Project.
Phase IIIBService
Laterals
“D” Street
Euclid Avenue to James
Bryant Park
No Alterna6ves due to exis6ng land use.
Not a part of the
Proposed Project.
Mission Boulevard
Cypress Avenue to Bon
View Avenue
No Alterna6ves due to exis6ng land use. Not a part of the Proposed Project
Proposed Riverside Dr. Alignment
Phase I
Riverside Drive
Archibald Ave. to Mill
Creek Ave.
No Alterna6ves due to exis6ng land use.
1.5 miles of 12-inch to 16-inch diameter recycled water pipeline
Not part of the
Proposed Project.
Hermosa Avenue
Creekside Park to East
Riverside Dr.
No Alterna6ves due to exis6ng land use. Not part of the Proposed Project.
Haven Avenue
Creekside Dr. to East
Riverside Drive
No Alterna6ves due to exis6ng land use. Not part of the Proposed Project.
Phase II
Deer Creek Loop
Antelope Way to East
Elsinore Way
No Alterna6ves due to exis6ng land use. Not part of the Proposed Project.
Creekside Drive
Deer Creek Loop to Lytle
Creek Loop
No Alterna6ves due to exis6ng land use. Not part of the Proposed Project.
Lytle Creek Loop
Creekside Drive to Eagle
Creek Place
No Alterna6ves due to exis6ng land use. Not part of the Proposed Project.
Mill Creek Avenue
Lytle Creek Loop to East
Riverside Dr.
No Alterna6ves due to exis6ng land use. Not part of the Proposed Project.
Lytle Creek Loop
Mill Creek to Stone Creek
Way
No Alterna6ves due to exis6ng land use. Not part of the Proposed Project.
Source: City of Ontario Recycled Water Distribu6on System Project, Ini6al Study/ Mi6gated Nega6ve Declara6on, 2016
546
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 6 TABLE 2: RWDS CERTIFIED IS/MND (SCH# 2016081019) PREVIOUS MITIGATION MEASURES Aesthecs Previously Approved Migaon Measures 1
PREV MM I-01: Trench Lines**- Trench Lines shall avoid the TPZ to the greatest extent feasible. (See MMRP AES-02, E).
PREV MM I-02: Root Cu(ng** - When root cuTng occurs, exposed major roots (greater than 2 inches in diameter or within 5 feet of the trunk) shall not be ripped by construc6on equipment. Instead, they shall be cut cleanly, if possible, back to a lateral branching root. Cuts shall be clean and made at right angles to the roots. (MMRP AES-02, F).
PREV MM I-03: Cerfied Arborist**- A Cer6fied Arborist shall be present if more than 33% of the root zone is impacted or roots greater than 2 inches or within 5 feet of the trunk will be cut, to ensure tree stability and health. (MMRP AES-01).
PREV MM I-04: Post-grading Procedures**- Absorbent tarp or heavy cloth fabric shall cover new grade cuts and be overlain by compost or woodchip mulch. (MMRP AES-05).
PREV MM I-05: Root Zone Protecon during Construcon**- Construc6on precau6ons, such as steel traffic plates and fencing, shall be employed to protect sensi6ve root zones from undue soil compac6on. Staging shall be limited to areas outside of TPZ's without specific authoriza6on from the City. (MMRP AES-10, AES-02, AES-03, and AES-04) PREV MM I-06: Post Construcon Grades**- Natural or preconstruc6on grade shall be maintained within the TPZ. (MMRP AES-02, G, VII).
PREV MM I-07: Pruning**- Pruning for clearance, if needed, shall be done to prevent damaging branches with large equipment. All above ground pruning shall be in accordance with the Tree Pruning Guidelines (Interna6onal Society of Arboriculture) and/or the ANSI A300 Pruning Standard (American Na6onal Standard for Tree Care Opera6ons) and adhere to the most recent edi6on of ANSI Z133.1. (MMRP AES-02, G).
PREV MM I-08: Pruning Cuts**- Pruning cuts or damaged bark shall be cut clean to heal. No tree seal or paint shall be used aQer pruning. (MMRP AES-02, H).
PREV MM I-09: Construcon within the TPZ**- Where work is proposed to occur within the vicinity of the TPZ, trees shall be iden6fied and preserved with protec6ve fencing to within a 10-foot radius of the trunk. Protec6ve fencing shall be installed prior to any earthwork and remain un6l all work is complete, or un6l adjacent construc6on ac6vity no longer threatens tree health.
Fencing shall be three to four feet in height and installed at the outermost edge of the 10-foot radius, whichever is greater. The temporary fencing shall be chain link fencing or other City approved durable material (e.g. snow fencing). Signs sta6ng “Tree Protec6on Zone – Keep Out” shall be posted on the fence. (MMRP AES-2, A and L).
PREV MM I-10: Irrigaon**- The TPZ shall be irrigated according to the current City irriga6on regime to avoid addi6onal stress on the trees. (MMRP AES-2, K).
PREV MM I-11: Tree Replacement [During Construcon]*- While no tree removal is proposed, if death to any landscape tree occurs as a result of construc6on related ac6vi6es, the replacement of said tree shall occur within a 6mely manner, or immediately upon no6fica6on by the City, as prescribed by Division 6.10 of the City’s Development Code. The damage or removal of Heritage Tree protected pursuant to the City’s Development Code, or encroachment into a TPZ, shall require an evalua6on by the City-approved cer6fied arborist as to the resul6ng condi6on, prescribed treatment to repair the damage, replace trees if removed, and monetary value of the tree if removed or damaged beyond repair. (MMRP AES-05).
PREV MM I-12: Heritage Trees**- Healthy Heritage Trees that are approved for removal shall be replaced with new trees and shall be shown on required Landscape and Irriga6on Construc6on Documenta6on Plans. Replacement trees shall have a total trunk diameter (caliper) equal to tree(s) removed, or as deemed appropriate by the Approving Authority based on the lot size and available plan6ng space. The monetary value of Heritage Trees protected pursuant to this Division, which are removed, shall be based upon the “Guide for Plant Appraisal,” which is available from the Interna6onal Society of Arboriculture. Appraisals shall be performed by a City-approved professional plant appraiser or cer6fied arborist skilled in tree appraisals. (MMRP AES-05). 1 Previously approved mi6ga6on measures have been included in the MMRP for the Project as follows:
*Denotes previously approved mi6ga6on measures that are modified for the Project and included, as modified, in the Project MMRP. **Denotes previously approved mi6ga6on measures that are unmodified and included in the Project MMRP per the cer6fied IS/MND SCH# 2016081019.
***Denotes previously approved mi6ga6on measures that are not applicable to the Project and are not included in the Project MMRP. 547
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 7 PREV MM I-13: Maintenance and Monitoring of Replacement Trees**- The maintenance and monitoring period for replacement trees will be for a minimum of three years. Maintenance ac6vi6es include hand weed removal around the installed trees, repair of cages, irriga6on repairs, monitoring to ensure adequate moisture to trees and proper func6oning of irriga6on system and 6mers, as well as replacement plan6ng if necessary. Maintenance and monitoring will include weed removal, which will be rou6nely removed from a three-foot radius around each installed replacement tree to ensure that the tree does not become overcrowded by weeds. Weeds may be removed by carefully applying herbicide under no wind condi6ons to prevent overspray; they also can be removed by hand removal if done so carefully to avoid impacts to the tree roots. Weed whacking should be avoided. (MMRP AES05).
PREV MM I-14: Replacement of Dead Trees [During Post Construcon Monitoring]**- Any replacement trees that die during the three-year maintenance period shall be replaced in kind using the same methods outlined in mi6ga6on measures I-12 and I-13. If replacement trees die and are replaced, the replaced tree shall be maintained for three years from the point of installa6on. Staff from the City or an approved monitor shall inspect the replacement trees at the end of three years to determine if the trees are established. The City shall determine if any of the trees are dead or need addi6onal maintenance. (MMRP AES-05, C).
PREV MM I-15: Lighng***-A facili6es ligh6ng plan shall be prepared and shall demonstrate that glare from opera6ng and safety night lights that may create light and glare affec6ng adjacent occupied property are sufficiently shielded to prevent light and glare from spilling into occupied structures. This plan shall specifically indicate that the ligh6ng doesn’t exceed 1.0 lumen at the nearest residence to any ligh6ng site within the Project footprint. This plan shall be implemented by the City to minimize light or glare intrusion onto adjacent proper6es. (MMRP AES-07).
Air Quality Previously Approved Migaon Measures1
PREV MM III-1: Fugive Dust Control**- The following measures shall be incorporated into Project plans and specifica6ons for implementa6on (MMRP AQ-01):
- All clearing, grading, earth-moving, or excava6on ac6vi6es shall cease when winds exceed 25 mph per SCAQMD guidelines in order to limit fugi6ve dust emissions.
- The contractor shall ensure that all disturbed areas within the Project are watered with complete coverage of disturbed areas at least two 6mes a day, preferably in the mid-morning, aQernoon, and aQer work is done for the day. Addi6onal watering can be applied if fugi6ve dust is observed leaving the Project site. - The contractor shall ensure that traffic speeds on the Project site are reduced to 10 miles per hour or less. - Plans, specifica6ons and contract documents shall direct that a sign must be posted on-site sta6ng that construc6on workers shall not idle diesel engines in excess of five minutes. - During grading ac6vity, all construc6on equipment greater than 150 horsepower shall be CARB Tier 3 Cer6fied. - Only Zero-Vola6le Organic Compounds” paints (no more than 150 gram/liter of VOC) and/or High-Pressure Low Volume (HPLV) applica6ons consistent with South Coast Air Quality Management District Rule 1113 shall be used when reservoirs are painted, if painted onsite.
- Install and maintain track out control devices in effec6ve condi6on at all access points where paved and unpaved access or travel routes intersect (e.g., Install wheel shakers, wheel washers, and limit site access. - All roadways, driveways, sidewalks, etc., shall be completed as soon as possible. In addi6on, reservoir pads shall be installed as soon as possible aQer grading, unless seeding or soil binders are used in travel areas. - When materials are transported off-site, all material shall be covered, effec6vely weYed to limit visible dust emissions, and at least six inches of freeboard space from the top of the container shall be maintained. - All streets shall be swept at least one a day using SCAQMD Rule 1186 cer6fied street sweepers if visible soil materials are carried to adjacent streets.
- The contractor or builder shall designate a person or persons to monitor the dust control program and to order increased watering, as necessary, to prevent transport of dust offsite. - Post a publicly visible sign with the telephone number and person to contact regarding dust complaints. This person shall respond and take correc6ve ac6on within 24 hours.
1 Previously approved mi6ga6on measures have been included in the MMRP for the Project as follows:
*Denotes previously approved mi6ga6on measures that are modified for the Project and included, as modified, in the Project MMRP. **Denotes previously approved mi6ga6on measures that are unmodified and included in the Project MMRP per the cer6fied IS/MND SCH# 2016081019.
***Denotes previously approved mi6ga6on measures that are not applicable to the Project and are not included in the Project MMRP. 548
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 8 - Any on-site stockpiles of debris, dirt or other dusty material shall be covered or watered as necessary to minimize fugi6ve dust.
- Use electric construc6on equipment where technically feasible, i.e., a competent electronic version of the equipment is commercially available.
PREV MM III-2: Exhaust Emissions Control** -
(MMRP AQ-02)
- U6lize well-tuned off-road construc6on equipment.
- Establish a preference for contractors using Tier 3-rated or beYer heavy equipment. - Enforce 5-minute idling limits for both on-road trucks and off-road equipment.
Biology1
PREV MM III-01: Burrowing Owl [and nests]*- The following measures shall be implemented if the Alterna6ve 3 site is selected for the pump sta6on:
• Since burrowing owl has occupied a site already exposed to high ac6vity, a sound wall shall be established between the construc6on area and the burrow loca6on if the owl is present. Otherwise, construc6on shall be conducted aQer the nes6ng season (March 15 through September 15) unless the nest is abandoned earlier. AQer the nest is abandoned, it can be closed and a reloca6on burrow constructed in the general vicinity. The closure shall be accomplished in accordance with the California Department of Fish and Wildlife burrowing owl protocols. (BIO-01).
Cultural Resources Previously Approved Migaon Measures1 PREV MM V-1 *** - The profile of the proposed new facili6es at the Euclid Avenue booster sta6on should be minimized as much as possible through the size reduc6on and/or co-loca6on with exis6ng facili6es (if feasible), enhanced landscaping, and the applica6on of a non-reflec6ve, muted color scheme that blends with the surrounding environment. Landscaping remedies may include the use of strategically placed trees, shrubbery, climbing vines, and similar foliage to reduce the visual impact. (MMRP AES-07).
PREV MM V-02- Gabrieleno Band of Mission Indians- Kizh Naon**- Prior to issuance of a grading permit or ground disturbance, the Project applicant shall contact the Gabrieleno Band of Mission Indians-Kizh Na6on and provide the tribe with wriYen no6fica6on of the Project's ground-disturbing ac6vi6es and provide the tribe an opportunity to have a tribal monitor on-site during these ac6vi6es, if required. A copy of the wriYen no6fica6on shall be provided to the Ontario Municipal U6li6es Department (OMUC) prior to the issuance of the first grading permit and ground disturbance. (MMRP TCR-03) PREV MM V-03**- All above grade related equipment shall be screened from public view by any combina6on of non-reflec6ve paint to match surrounding area, colloca6on on exis6ng light fixtures or poles, and/or through a stealth design. (MMRP AES-07).
PREV MM V-04: Curbs along Euclid Avenue**- The surviving segments of stone-and-concrete curbs along Euclid Avenue should be protected against inadvertent disturbance during the construc6on ac6vi6es. If inadvertent disturbance appears likely at any loca6on, they should be removed and stored in such a manner that they can be restored to their original condi6on aQer work has concluded in that area. (MMRP CUL-05).
PREV MM IV-05: Cultural Resources**- Should any cultural resources be encountered during construc6on of these facili6es, earthmoving or grading ac6vi6es in the immediate area of the finds shall be halted and an onsite inspec6on shall be performed immediately by a qualified archaeologist. Responsibility for making this determina6on shall be with the City of Ontario onsite inspector. The archaeological professional shall assess the find, determine its significance, and make recommenda6ons for 1 Previously approved mi6ga6on measures have been included in the MMRP for the Project as follows:
*Denotes previously approved mi6ga6on measures that are modified for the Project and included, as modified, in the Project MMRP. **Denotes previously approved mi6ga6on measures that are unmodified and included in the Project MMRP per the cer6fied IS/MND SCH# 2016081019.
***Denotes previously approved mi6ga6on measures that are not applicable to the Project and are not included in the Project MMRP. 549
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 9 appropriate mi6ga6on measures within the guidelines of the California Environmental Quality Act. (MMRP CUL-01, CUL-02, CUL04).
PREV MM V-06: Irrigaon along Euclid Avenue*- The design, layout, and installa6on/modifica6ons of the irriga6on system in the Euclid Avenue median should be carefully craQed to reduce the likelihood of any impact to “Heritage Trees” in accordance with guidelines outlined the Ini6al Study/Mi6gated Nega6ve Declara6on for the City of Ontario Recycled Water Distribu6on System Project. (MMRP AES-02).
Geology and Soils Previously Approved Migaon Measures1 PREV MM VI-01: Uniform Building Code and California Building Code**- The structural design and construc6on of new structures will, at a minimum, be in accordance with the requirements of the most recent Uniform Building Code (UBC) and California Building Code (CBC) including the latest supplements for Groundshaking Zone 4 as described in the 2001 California Building Code Vol. 28 and all other applicable City, County, State and Federal laws, regula6ons and guidelines. (MMRP GEO-01).
PREV MM VI-02: Performance Standards**- Future construc6on shall be designed in accordance with results in order to meet the following performance standard for Risk Class I & II, e.g., public facili6es, as iden6fied below:
Risk Class I & II, Structures Cri6cally Needed aQer Disaster: Structures which are cri6cally needed aQer a disaster include important u6lity centers, fire sta6ons, police sta6ons, emergency communica6on facili6es, hospitals, and cri6cal transporta6on elements such as bridges and overpasses and smaller dams. Acceptable Damage: Minor non-structural; the facility should remain opera6onal and safe or be suitable for quick restora6on of service. (MMRP GEO-02).
PREV MM VI-03: Stored Backfill**- Stored backfill material shall be covered with water resistant material during periods of heavy precipita6on to reduce the poten6al for rainfall erosion of stored backfill material. If covering is not feasible, then measures such as the use of straw bales or sandbags shall be used to capture and hold eroded material on the Project site for future cleanup. (MMRP GEO-03)
PREV MM VI-04: Excavated Areas**- Excavated areas shall be properly backfilled and compacted. Paved areas disturbed by this Project will be repaved in such a manner that roadways and other disturbed areas are returned to as near the pre-Project condi6on as is feasible. (MMRP GEO-04).
PREV MM VI-05: Disturbed Soils**- All exposed, disturbed soil (trenches, stored backfill, etc.) will be sprayed with water or soil binders twice a day or more frequently if fugi6ve dust is observed migra6ng from the site within which the water facili6es are being installed. (MMRP GEO-05)
PREV VI-06: Open Trench**- The length of trench, which can be leQ open at any given 6me, will be limited to that needed to reasonably perform construc6on ac6vi6es. This will serve to reduce the amount of backfill stored onsite at any given 6me. (MMRP GEO-06).
Hazards and Hazardous Materials Previously Approved Migaon Measures1 PREV MM VIII-01: Petroleum Spills or Leaks**- All spills or leakage of petroleum products during construc6on ac6vi6es will be remediated in compliance with applicable state and local regula6ons regarding cleanup and disposal of the contaminant released.
The contaminated waste will be collected and disposed of at an appropriately licensed disposal or treatment facility. This measure will be incorporated into the SWPPP prepared for the Project development. (MMRP HAZ-01 and HAZ-02).
1 Previously approved mi6ga6on measures have been included in the MMRP for the Project as follows:
*Denotes previously approved mi6ga6on measures that are modified for the Project and included, as modified, in the Project MMRP. **Denotes previously approved mi6ga6on measures that are unmodified and included in the Project MMRP per the cer6fied IS/MND SCH# 2016081019.
***Denotes previously approved mi6ga6on measures that are not applicable to the Project and are not included in the Project MMRP. 550
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 10 Hydrology and Water Quality Previously Approved Migaon Measures1 PREV MM IX-01: Storm Water Polluon Prevenon Plan BMPs**- The City shall require that the construc6on contractor prepare and implement a Storm Water Pollu6on Preven6on Plan (SWPPP) which specifies Best Management Prac6ces (BMPs) that will prevent all construc6on pollutants from contac6ng stormwater and with the intent of keeping all products of erosion from moving offsite into receiving waters. The SWPPP shall include a Spill Preven6on and Cleanup Plan that iden6fies the methods of containing, cleanup, transport and proper disposal of hazardous chemicals or materials released during construc6on ac6vi6es that are compa6ble with applicable laws and regula6ons. BMPs to be implemented in the SWPPP may include but not be limited to:
- The use of silt fences.
- The use of temporary stormwater desil6ng or reten6on basins. - The use of water bars to reduce the velocity of stormwater runoff. - The use of wheel washers on construc6on equipment leaving the site. - The washing of silt from public roads at the access point to the site to prevent the tracking of silt and other pollutants from the site onto public roads.
- The storage of excavated material shall be kept to the minimum necessary to efficiently perform the construc6on ac6vi6es required. Excavated or stockpiled material shall not be stored in water courses or other areas subject to the flow of surface water; and
- Where feasible, stockpiled materials shall be covered with waterproof material during rain events to control erosion of soil from the stockpiles.
(MMRP HYDRO-01 and HYDRO-02)
Noise Previously Approved Migaon Measures1
PREV MM XII-01: Noise Reducing Barriers**- The City shall use noise reducing barriers and other devices to reduce exterior noise levels at the nearest sensi6ve receptor to 60 CNEL or less during the night-6me construc6on hours and 65 CNEL or less during the day6me construc6on hours. (MMRP NOI-01, 2).
PREV MM XII-02: Construcon Hours**- No construc6on ac6vi6es shall occur during the hours of 6 pm through 7 am, Monday through Saturday and at no 6me shall construc6on ac6vi6es occur on Sundays or holidays, unless required by CalTrans permit, or a declared emergency exists. (MMRP NOI-01, 1).
PREV MM XII-03: Noise Compliant Response Program**- The City shall establish a noise complaint response program and shall respond to any noise complaints received for this Project by measuring noise levels at the affected receptor site. If the noise level exceeds an Ldn of 60 dBA exterior or an Ldn of 45 dBA interior at the receptor, the applicant will implement adequate measures (which may include portable sound aYenua6on walls, use of quieter equipment, shiQ of construc6on schedule to avoid the presence of sensi6ve receptors, etc.) to reduce noise levels to the greatest extent feasible. (MMRP NOI-01, 8) PREV MM XII-04: Construcon Equipment**- The City will require that all construc6on equipment be operated with mandated noise control equipment (mufflers or silencers). Enforcement will be accomplished by random field inspec6ons by applicant personnel during construc6on ac6vi6es. (MMRP NOI-01, 3 and 4)
PREV MM XII-05: Equipment Shut Off**- Equipment not in use for five minutes shall be shut off.(MMRP NOI-01, 4) PREV MM XII-06: Secured Equipment Loads**- Equipment shall be maintained and operated such that loads are secured from raYling or banging. (MMRP NOI-01, 5).
PREV MM XII-07: Electric-powered Equipment**- Where available, electric-powered equipment shall be used rather than diesel equipment and hydraulic-powered equipment shall be used instead of pneuma6c power. (MMRP NOI-01, 6). 1 Previously approved mi6ga6on measures have been included in the MMRP for the Project as follows:
*Denotes previously approved mi6ga6on measures that are modified for the Project and included, as modified, in the Project MMRP. **Denotes previously approved mi6ga6on measures that are unmodified and included in the Project MMRP per the cer6fied IS/MND SCH# 2016081019.
***Denotes previously approved mi6ga6on measures that are not applicable to the Project and are not included in the Project MMRP. 551
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 11 PREV MM XII-08: Construcon Employee Training**- Construc6on employees shall be trained in the proper opera6on and use of equipment consistent with these mi6ga6on measures, including no unnecessary revving of equipment. (MMRP NOI-01, 9).
PREV MM XII-09: Radios**- No radios or other sound equipment shall be used at the Project Site unless required for emergency response by the contractor. (MMRP NOI-01, 7).
PREV MM XII-10: Public Noce**- Public no6ce shall be given prior to ini6a6ng construc6on. This no6ce shall be provided to all property owners/residents within 300 feet of the Project site and shall be provided to property owners/residents at least one week prior to ini6a6ng construc6on. The no6ce shall iden6fy the dates of construc6on and the name and phone number of a construc6on supervisor (contact person) in case of complaints. One contact person shall be assigned to the Project. The public no6ce shall encourage the adjacent residents to contact the supervisor in the case of a complaint. Residents would be informed if there is a change in the construc6on schedule. The supervisor shall be available 24/7 throughout construc6on by mobile phone. If a complaint is received, the contact person shall take all feasible steps to remove the sound source causing the complaint. (MMRP NOI-01, 8) PREV MM XII-11: Booster Pump Staons***-The booster pump sta6ons shall have noise levels aYenuated to 50 dBA CNEL at the nearest sensi6ve noise receptor loca6on.
Transportaon Previously Approved Migaon Measures1
PREV MM XVI-01: Traffic Management**- A construc6on contractor will provide adequate traffic management resources, as determined by the City of Ontario. The City shall require a construc6on traffic management plan for work in public roads that complies with the Work Area Traffic Control Handbook, or other applicable standard, to provide adequate traffic control and safety during excava6on ac6vi6es. The traffic management plan shall be prepared and approved by the City prior to ini6a6on of excava6on or pipeline construc6on. At a minimum this plan shall include how to minimize the amount of 6me spent on construc6on ac6vi6es; how to minimize disrup6on of vehicle and alterna6ve modes of transport traffic at all 6mes, but par6cularly during periods of high traffic volumes; how to maintain safe traffic flow on local streets affected by construc6on at all 6mes, including through the use of adequate signage, protec6ve devices, flag persons or police assistance to ensure that traffic can flow adequately during construc6on; the iden6fica6on of alterna6ve routes that can meet the traffic flow requirements of a specific area, including communica6on (signs, webpages, etc.) with drivers and neighborhoods where construc6on ac6vi6es will occur; and at the end of each construc6on day roadways shall be prepared for con6nued u6liza6on without any significant roadway hazards remaining. (See MMRP TRAF-01).
PREV MM XVI-02: Roadway Repairs**-The City shall require that all disturbances to public roadways be repaired in a manner that complies with the Standard Specifica6ons for Public Works Construc6on (green book) or other applicable City of Ontario standard design requirements. (MMRPTRAF-02: MM TRAF-02).
1 Previously approved mi6ga6on measures have been included in the MMRP for the Project as follows:
*Denotes previously approved mi6ga6on measures that are modified for the Project and included, as modified, in the Project MMRP. **Denotes previously approved mi6ga6on measures that are unmodified and included in the Project MMRP per the cer6fied IS/MND SCH# 2016081019.
***Denotes previously approved mi6ga6on measures that are not applicable to the Project and are not included in the Project MMRP. 552
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 12 PROJECT BACKGROUND
Project Title: Euclid Avenue Recycled Water System Project
Lead Agency: City of Ontario, Ontario Municipal U0li0es Company 1425 S. Bon View Avenue
Ontario, CA 91761
Contact Person
Phone Number:
Luke Zhipeng Qu
(909) 395-2676
Documents Posted
At:
h@ps://www.ontarioca.gov/Planning/CurrentPlanning
Prepared By: Ardurra Group
Lori E. TroVer, AICP, CEP
[email protected]
General Plan
Designa6on:
Various; City Right-of-Way; Open-Space Recrea0on; Civic
Zoning:
Various; City Right-of-Way
Specific Plan or
Master Plan:
City of Ontario Water Master Plan (2016); City of Ontario Climate Ac0on Plan (2022); Borba Village Specific Plan Area (adjacent to the west); Zoned for Specific Plan Overlay (is adjacent to the south).
Project Loca6on
Surrounding Land
Use and SeTng:
The Project is in the City of Ontario, San Bernadino County, California. Figure 1: Regional Loca.on Map and Figure 2: Local Vicinity Key Map show the Project on the USGS Ontario Topographic Quadrangle. The Project is within two dis0nct areas in western Ontario within proximity to Euclid Avenue and E. Riverside Drive. The Project is described in six segments according to geographic loca0on. Por0ons of Segments 1 through 5 are within the Euclid Avenue Historic District and Downtown District (See Figures 2A and 2B).
Segment 6 is within ROW of E. Riverside Avenue (east of Euclid Avenue) and in Euclid Avenue ROW between E. Walnut Street and E. Riverside Avenue.
Land use surrounding the Project includes public facili0es, commercial, mixed-use, and low to medium density residen0al. Segments are described below and depicted in Figures 1, 2, 2A, 2B, and 7. Surrounding land use is summarized in Table 3: Surrounding Adjacent Land Uses at Project Segments and Table 4: Surrounding Land Use and Facili/es Within the Local Vicinity of The Project:
1. Segment 1: Euclid Avenue northbound lane from 4th Street to E. Holt Boulevard. The Project will remove/replace 8 trees and install four (4) laterals from the Euclid Avenue northbound lane to the center median.
2. Segment 2: Westbound W. F Street from the east side (northbound lanes) of Euclid Avenue to N. Vine Avenue, northbound N. Vine Avenue (between 553
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 13 W. F Street and W. Flora Street), westbound W. Flora Street (between N. Vine Avenue and the northwestern corner of James Bryant Park). The Project will install a Lateral and remove one tree at James R. Bryant Park.
3. Segment 3: westbound E. B Street (between Euclid Avenue and W. Lemon Avenue); the Project will install laterals serving the Civic Center Area.
4. Segment 4: westbound E. C Street (between Euclid Avenue and west of Lemon Avenue). The Project will install Three (3) laterals adjacent to Ontario Town Square and Ontario City Hall (C St and D St roundabout) and will convert a por0on of exis0ng water mains to recycled water.
5. Segment 5: eastbound E. E Street (between Euclid Avenue to an unnamed alley to the east of Euclid Avenue). The Project will install laterals serving the Civic Center Area.
6. Segment 6: E. Riverside Drive eastbound lane (between Euclid Avenue and 200 feet east of Baker Avenue) and from E. Riverside Drive intersec0on at Euclid Avenue. The Project will install lateral connec0ons extending recycled water service to the north from E. Riverside Drive for Riverside Parkway, and Centennial Park with the new Project main. The Project will convert an exis0ng water main in northbound Euclid Avenue (between E. Riverside Drive and E. Walnut Avenue) to recycle water.
TABLE 3: SURROUNDING ADJACENT LAND USE AT PIPELINE SEGMENTS Land Use General Plan Zoning
Segment 1: Euclid Avenue (4th St. to E. Holt Blvd.)
Project Loca6on City Right-of-Way --- ---
North Chaffey High School; Residen6al;
Interstate 10 (I-10; San Bernadino
Fwy)
Public Facility; Low Density Residen6al PF; LDR-5
South Mixed-use (Restaurants, Shopping
Centers); Ontario Town Square;
Metrolink Railroad Tracks
Mixed-use Downtown; Civic; Rail MU-1; CIV;
RAIL
East Mixed-use (Restaurants, Shopping
Centers); Residen6al; Offices
Mixed-use Downtown; Low Density Residen6al;
Low Medium Density Residen6al; Low Intensity
Office
MU-1; LDR-5;
MDR-11; OL
West Mixed-use (Restaurants, Shopping
Centers); Residen6al; Offices;
Church
Mixed-use Downtown; Low Density Residen6al;
Low Medium Density Residen6al; Low Intensity
Office
MU-1; LDR-5;
MDR-11; OL
Segment 2: W. F St. (Euclid Ave. to N. Vine Ave); N. Vine Ave. (W. F St. to W. Flora St); W. Flora St. (Vine Ave. to James R. Bryant Park)
Project Loca6on City Right-of-Way --- ---
North Residen6al; Commercial; Mixed-Use
(Restaurants, Shopping Centers)
Church Structure
Low Medium Density Residen6al; Community
Commercial; Mixed-use Downtown
MDR-11; CC;
MU-1
South James Bryant Park; Residen6al
(Single-Family and Mul6-Family);
Commercial; Mixed-Use
(Restaurants, Shopping Centers)
Open-Space Recrea6on; Low Density Residen6al;
Low Medium Density Residen6al; Community
Commercial; Mixed-use Downtown
OS-R; LDR-5;
MDR-11; CC;
MU-1
East Mixed-use (Restaurants, Shopping
Centers); Residen6al; Offices
Mixed-use Downtown; Low Density Residen6al;
Low Medium Density Residen6al; Low Intensity
Office
MU-1; LDR-5;
MDR-11; OL
West Residen6al Low Density Residen6al LDR-5
Segment 3: E. B St., (Euclid Ave. to City Hall)
Project Loca6on City Right-of-Way --- ---
554
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 14 North Planned Unit Development and City
Hall
Civic; Planned Unit Development CIV; PUD
South Ontario Town Square; Planned Unit
Development
Civic; Planned Unit Development CIV; PUD
East Residen6al Civic CIV
West Mixed-Use (Shopping Centers,
Restaurants)
Mixed-use Downtown MU-1
Segment 4: E. C St., (Euclid Ave. to OviY Family Community Library) Project Loca6on City Right-of-Way -- --
North Parking Structure Public Facility and Mixed Use CIV; PUD South Commercial Bank Public Facility and Mixed Use CIV; PUD East Library and Mul6-Family Housing Public Facility and Mixed Use CIV; PUD West Bandstand and Women’s
Temperance Union Drinking
Fountain
NA
Segment 5: E. E St. (Euclid Avenue to West of N. Lemon Ave.) Project Loca6on City Right-of-Way PUD
North Commercial PUD
South Commercial PUD
East Residen6al and Commercial PUD
West Commercial PUD
Segment 6: E. Riverside Drive between Euclid Avenue and 200 feet east of Baker Avenue Project Loca6on City Right-of-Way --- ---
North Residen6al; Centennial Park;
Whispering Lakes Golf Courses;
Westwind Park; Westwind
Community Center; Levi H. Dickey
Elementary School
Low Density Residen6al; Low-Medium Density
Residen6al; Public School; Open Space- Parkland;
Open Space- Non-Rec
OS-R; MDR18; LDR-5;
MHP; CIV;
OS-R
South Residen6al; Agriculture; Heavenly
Care Daycare and Preschool;
Manolesco Nurseries; Commercial
Low-Medium Density Residen6al; Medium Density
Residen6al; General Commercial
ICC (Interim
Community
Commercial);
AG
East Euclid Avenue (City Right-of-Way) --- ---
West Residen6al; Commercial Low-Medium Density Residen6al; Neighborhood Commercial
LDR-5; CN;
MDR-18
TABLE 4: SURROUNDING LAND USE AND FACILITIES WITHIN THE LOCAL VICINTIY OF THE PROJECT Item No.1 Establishment Sensi6ve
Receptor Type
Distance from Project Alignment (miles)
Segment 1: Euclid Avenue between 4th Street and E. Holt Blvd (Reference Figure 2A: Northern Por6on Local Vicinity Map) 1 Chaffey High School Educa6on 4th St. to 30-inch IEUA recycled water main (0.1 mi.) 2 Vina Danks Middle School Educa6on 4th St. to 30-inch IEUA recycled water main (0.1 mi.) 3 Chaffey Memorial Library Public Library 4th St. to 30-inch IEUA recycled water main (0.1 mi.) 4 Champions at Euclid
Elementary
Childcare Euclid Ave. proposed recycled water main (0.1 mi.) 5 Turciz Family Daycare Childcare Euclid Ave. proposed recycled water main (0.1 mi.) 6 First United Methodist Church Place of
Worship
Euclid Ave. proposed recycled water main (0.1 mi.)
7 New Apostolic Church Euclid Ave. proposed recycled water main (0.1 mi.) 8 American Inn Hotel Euclid Ave. proposed recycled water main (0.1 mi.) 555
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 15 9 First Lutheran Church Ontario Place of
Worship
Euclid Ave. proposed recycled water main (0.1 mi.)
10 Central Language Academy Educa6on Euclid Ave. proposed recycled water main (0.1 mi.) 11 Ontario Veterinary Hospital Animal care Euclid Ave. proposed recycled water main (0.1 mi.) 12 St. George Catholic Church Place of
Worship
Euclid Ave. proposed recycled water main (0.2 mi.)
13 Ontario Park Parks and Open
Space
Euclid Ave. proposed recycled water main (0.2 mi.)
14 St. George School Educa6on Euclid Ave. proposed recycled water main (0.2 mi.) Segment 3: E. B Street
(Reference Figure 2A: Northern Por6on Local Vicinity Map) 15 Ontario Town Square (Town
Square Park and Civic Center)
Entertainment/
Public Facility
Euclid Ave. proposed recycled water main (0.1 mi.)
Segment 4: E. C Street between Euclid Avenue and N. Lemon Avenue (Reference Figure 2A: Northern Por6on Local Vicinity Map) 16 Mule Car and Veterans’
Memorial Obelisk
Historical
Landmark
Euclid Ave. proposed recycled water main (0.1 mi.)
17 Ontario Senior Center Senior Care Euclid Ave. proposed recycled water main (0.1 mi.) 18 OviY Family Community
Library
Public Library Euclid Ave. proposed recycled water main (0.1mi.) 19 Snyder Ontario Apartments
Metro 102
Mul6-use
Residen6al,
apartments
Euclid Ave. proposed recycled water main (0.2 mi.)
20 San Antonion School Educa6on Euclid Ave. proposed recycled water main (0.2 mi.) Segment 5: E. E Street between Euclid Avenue and West of N. Lemon Avenue (Reference Figure 2A: Northern Por6on Local Vicinity Map) 15 Ontario Town Square (Town
Square Park and Civic Center)
Entertainment/
Public Facility
Euclid Ave. proposed recycled water main (0.1 mi.)
Segment 6: E. Riverside Drive between Euclid Avenue and 200 feet East of Baker Avenue (Reference Figure 2B: Southern Por6on Local Vicinity Map) 1 Harris Place Apartments Mul6-family
Residen6al
Riverside Dr. proposed water main (0.1 mi.)
2 Woodcrest Junior High School Educa6on
Facility
Riverside Dr. proposed water main (0.4 mi.)
3 Liberty Elementary School Mul6-family
Residen6al
Riverside Dr. proposed water main (0.4 mi.)
4 Heavenly Care Daycare and
Preschool
Childcare
Place of
Worship
Riverside Dr. proposed water main (0.1 mi.)
5 Banal Na Pag Aral Riverside Dr. proposed water main (0.1 mi.) 6 Country Meadows Mobile
Home Park
Mobile Home
Park/
Residen6al
Riverside Dr. proposed water main (0.1 mi.)
7 Sunrise Children Center Childcare Riverside Dr. proposed water main (0.1 mi.) 8 Dog Park Park/ Open
Space
Riverside Dr. proposed water main (0.1 mi.)
9 Westwind Community Center Public Facility Riverside Dr. proposed water main (0.1 mi.) 10 Live Oak Preschool Educa6on
Facility
Riverside Dr. proposed water main (0.2 mi.)
7 Sunrise Children Center Childcare Riverside Dr. proposed water main (0.1 mi.) 8 Dog Park Park/ Open
Space
Riverside Dr. proposed water main (0.1 mi.)
Reference: Figure 2A: Northern Por6on Local Vicinity Map & Figure 2B: Southern Por6on Local Vicinity Map.
Source: City of Ontario General Plan EIR.
Note: (1) Item Number Corresponds with Figure 2A: Northern Por6on Local Vicinity Map & Figure 2B: Southern Por6on Local Vicinity Map
556
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 16 Have California
Na6ve American
Tribes tradi6onally
and culturally
affiliated with the
project area
requested
consulta6on
pursuant to
Public Resources
Code Sec6on
21080.3.1? If
so, is there a plan
for consulta6on
that includes, for
example, the
determina6on of
significance of
impacts to tribal
cultural resources,
procedures
regarding
confiden6ality,
etc.?
The State of California and City of Ontario’s Local CEQA Guidelines iden0fy Na0ve American consulta0on as an important aspect of the cultural resource evalua0on for CEQA compliance. To iden0fy poten0al Na0ve American resources, a Sacred Lands File Search (SLF) was conducted at the NAHC. A current Sacred Lands File Search response from the NAHC was received on February 5, 2024 (See Appendix D). The results from the SLF were nega0ve, indica0ng the absence of cultural resources in the Area of Poten0al Effects (APE) for the Project. The NAHC suggested that local Tribes affiliated with the Project loca0on should be contacted for more informa0on regarding known and recorded sites. Therefore, the NHAC provided a list of Na0ve American Tribes that could assist in iden0fying poten0ally significant resources due to these Tribes’ presence in the Project Area.
The City of Ontario ini0ated formal AB 52 Na0ve American Consulta0on on November 5, 2024, and received a le@er on November 14, 2024, from the Yuhaaviatam of San Manuel Na0on (formerly the San Manuel Band of Mission Indians) reques0ng mi0ga0on measures. The Project is within Serrano ancestral territory and is of interest to the Tribe. At this 0me, due to the nature of the Project and its loca0on as well as the Cultural Resources Management Department’s present state of knowledge, the Tribe does not have any concerns with Project implementa0on as currently planned. The Tribe has requested that mi0ga0on measures be included for CEQA compliance which require that the Tribe be no0fied if buried resources are encountered during construc0on and for Tribal input regarding the significance, appropriate next steps, monitoring, and treatment of cultural and Tribal resources found during construc0on. These mi0ga0on measures are included in the MMRP for the Project as MM CUL-01 through CUL-04.
Other public
agencies
whose approval
is required (e.g.,
permits, financing
approval, or
par6cipa6on
agreement)
This ISMND is intended to assist state and local agencies as well as special purpose districts in their responsibili0es for permit review or approval over various aspects of the Project. Table 5: Summary of Agency Approvals outlines the following permits and approvals that are required for the Project (see below):
TABLE 5: SUMMARY OF AGENCY APPROVALS
Agency Permit
City of Ontario Encroachment Permit
Easements for Installa6on of Recycled Water Pipeline
SWPPP NPDES Consistency
Ontario Tree Preserva6on Ordinances
Euclid Avenue HPTMP
Ontario Historic Preserva6on Ordinances
Inland Empire U6lity
Agency (IEUA)
Coordinate Connec6on to exis6ng recycled water system
San Bernadino County
Flood Control District
San Bernadino County Department of Public Works,
Transporta6on and Flood Control Standard Specifica6ons & Inspec6ons
557
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 17 ENVIRONMENTAL FACTORS POTENTIALLY AFFECTED:
The environmental factors checked below would be poten0ally affected by this Project, involving at least one impact that is a "Poten0ally Significant Impact" as indicated by the checklist on the following pages.
Aesthe6cs Agriculture & Forestry
Resources Air Quality
Biological Resources Cultural Resources Energy
Geology & Soils Greenhouse Gas Emissions Hazards & Hazardous Materials
Hydrology & Water Quality Land Use & Planning Mineral Resources Noise Popula6on & Housing Public Services
Recrea6on Transporta6on Tribal Cultural Resources
U6li6es & Service Systems Wildfire Mandatory Findings of Significance
DETERMINATION
On the basis of this ini0al evalua0on:
I find that the proposed project COULD NOT have a significant effect on the environment, and a NEGATIVE DECLARATION will be prepared.
I find that although the proposed project could have a significant effect on the environment, there will not be a significant effect in this case because revisions in the project have been made by or agreed to by the project proponent. A MITIGATED NEGATIVE DECLARATION will be prepared.
I find that the proposed project MAY have a significant effect on the environment, and an ENVIRONMENTAL IMPACT REPORT is required.
I find that the proposed project MAY have a "poten0ally significant" or "poten0ally significant unless mi0gated" impact on the environment, but at least one effect 1) has been adequately analyzed in an earlier document pursuant to applicable legal standards, and 2) has been addressed by mi0ga0on measures based on the earlier analysis as described on a@ached sheets. An ENVIRONMENTAL IMPACT REPORT is required, but it must analyze only the effects that remain to be addressed.
I find that although the proposed project could have a significant effect on the environment, because all poten0ally significant effects (a) have been analyzed adequately in an earlier EIR or NEGATIVE DECLARATION pursuant to applicable standards, and (b) have been avoided or mi0gated pursuant to that earlier EIR or NEGATIVE DECLARATION, including revisions or mi0ga0on measures that are imposed upon the proposed project, nothing further is required.
Signature
Date
Luke Zhipeng Qu
Printed Name
Ontario Municipal U6li6es Company
For
558
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 18 DESCRIPTION OF PROJECT
PURPOSE AND NEED
The Project represents a por0on of Ontario’s phased recycled water infrastructure improvements that will facilitate conversion of landscape irriga0on from potable water to recycled water. The use of recycled water for irriga0on has been approved in concept under The Ontario Plan (Ontario’s General Plan (GP)), to maximize the use of recycled water and reserve potable water under approved local and state water policies. The Project is es0mated to conserve 25 million gallons of potable water annually by conver0ng exis0ng irriga0on systems in public landscaped areas from potable water to recycled water provided by Inland Empire U0li0es Agency (IEUA). Over 50 million gallons per day of wastewater is accepted and treated at IEUA facili0es; this water is treated to Title 22 Regula0ons established by the State Division of Drinking Water for agriculture, municipal irriga0on, industrial uses, and for groundwater replenishment.
The Project will facilitate City conformance with the State Water Board’s emergency conserva0on regula0on, which requires mandatory reduc0ons in potable water consump0on in urban areas to reduce potable water use by 25 percent statewide (City of Ontario Recycled Water Distribu0on System Project IS/MND 2016). The Project is consistent with approved City plans, and it is not considered growth inducing.
OMUC is the City’s water purveyor and is responsible for providing water, recycled water, sewer, trash collec0on and recycling services throughout Ontario. OMUC oversees planning and development of Ontario’s recycled water distribu0on system. The Project is being proposed by OMUC to implement goals and policies for sustainable water use and expansion of the recycled water system. The Project proposes to construct new recycled water mains and to convert por0ons of the exis0ng potable water mains to recycled water; it will extend recycled water service to the south from an exis0ng 30-inch diameter IEUA recycled water distribu0on main at 4th Street/Euclid Avenue and will extend recycled water service to the west and north from a City-owned 24-inch diameter recycled water main located within E. Riverside Avenue at an exis0ng stubbed main approximately 200 feet east of Baker Avenue.
The Project proposes irriga0on with recycled water within por0ons of the Euclid Avenue median and parkway, in parks and open space located south of 4th street and north of E. Riverside Avenue, East of S.
San Antonio Avenue, and West of S. Sultana Avenue near the western city limits: A new recycled water main will be constructed within northbound Euclid Avenue between 4th Street and E. Holt Avenue for irriga0on of the Euclid Avenue median; an exis0ng potable water main in northbound Euclid Avenue will be converted to recycled water for median irriga0on between E. Walnut Avenue and E. E. Riverside Drive.
Proposed connec0ons from the new main in Euclid Avenue include 12-inch and 8-inch diameter recycled water mains extending from northbound Euclid Avenue to the Euclid Avenue Historic District and Downtown District north of E. Holt Avenue; these connec0ons will distribute recycled water to the east and west of Euclid Avenue for irriga0on of public parks and open space. The Project will provide recycled water for irriga0on at James R. Bryant Park, west of Euclid Avenue and for parks, public open space and public facili0es within Ontario’s Civic Center area to the east of Euclid Avenue. The Project will also provide recycled water for irriga0on of Centennial Park and Riverside Parkway north of E. Riverside Drive in the south part of the APE east of Euclid Avenue.
The Project proposes tree maintenance to remove and replace a total of ten (10) trees that are in poor health (see Table 6: Project Components (APE), Table 7: Tree Maintenance Recommenda/ons, Figure 2A: Northern Por/on Local Vicinity Map, Figure 5A: Photo Loca/on Key Map, and Figure 6 Site Photos.
Nine (9) of these exis0ng trees are within the Euclid Avenue ROW and one of these trees is at James R. 559
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 19 Bryant Park. Plans for the Project show 60-inch box tree replacements that are intended to maintain visual con0nuity within the APE and safety for compliance with Ontario’s Municipal Code requirements. Plans for the Project show tree replacements include two (2) strawberry trees (Arbutus Unedo), 12-feet to 14- feet high with 6- to 7-foot diameter canopies. Replacement trees will also include seven (7) California pepper trees (Schinus molle) and one (1) silk oak (Grevillea robusta), 16-18-feet high and 8- to 9-feet in diameter.
Conversion of exis0ng irriga0on to recycled water will make addi0onal potable water available to support the approved land use pa@erns shown on Ontario’s Land Use Map (LU-01, Land Use Plan) and will support regional and state ini0a0ves concerning housing and sustainability. The Project will provide connec0ons for future extension of recycled water service in the City of Ontario Plan Area according to the approved WMP. Permanent sustainable irriga0on at the following community resources is proposed:
• Center median along Euclid Avenue (between 4th and Holt Boulevard; and between E. Walnut Street and Riverside Drive),
• City Civic Center complex,
• Town Square Park,
• James R. Bryant Park,
• Centennial Park, and
• E. Riverside Drive Parkway (along the north side of E. Riverside Drive (west of approximately 200 feet east of Baker Street).
PROJECT OBJECTIVES
The Project will implement the State Water Board’s Recycled Water Policy and Regula0ons, an emergency regula0on regarding use of recycled water for landscape irriga0on. The Project will improve the accessibility of Ontario’s IEUA recycled water allotment to OMUC, as the City’s water purveyor. The Project will fulfill Ontario’s GP objec0ves for improving recycled water distribu0on and will reduce reliance on potable water for landscape irriga0on. The Project is proposed to achieve the following City objec0ves:
• Convert exis0ng irriga0on systems to recycled water at Centennial Park, Riverside Parkway, James R. Bryant Park, Town Square Park, the Civic Center complex, and por0ons of the Euclid Avenue landscaped median.
• Avoid u0lity conflicts and u0lity reloca0ons.
• Avoid damaging and support long-term maintenance of City resources including historic structures, trees, parks, and landscape open space.
• Implement City’s Municipal Code, including sec0ons pertaining to Historic Preserva0on, Design Guidelines, Standard Specifica0ons, Drawings and Approved Materials list. • Maintain con0nuous water service to the public and water customers during construc0on. • Implement applicable HPTMP Guidelines for preserva0on of Euclid Avenue Historic Property:
- Protect CDF structures in place.
- Restore areas that have been disturbed during construc0on according to Ontario’s Municipal Code.
- Preserve the spa0al rela0onships and historical character of the original design of Euclid Avenue.
PROJECT SUMMARY
The Project involves primarily underground infrastructure improvements within paved or currently developed public right-of-way (ROW); it will install ancillary valves, replacement landscaping including 560
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 20 trees, and sprinkler head replacements above ground surface (AGS) within landscaped areas. Proposed water mains will be constructed using open trench methods and will involve approximately 63,400 square feet of disturbance and approximately 384,400 cubic feet of earthwork. Plans for the Project show construc0on of approximately 20,400 linear feet (LF) of City-owned and operated recycled water mains, approximately 300 LF of lateral connec0ons, and conversion of approximately 2,000 LF of exis0ng potable water mains for distribu0on of recycled water within city limits. At connec0on points with exis0ng irriga0on systems, Project implementa0on will temporarily remove por0ons of exis0ng landscaping and paved surfaces. The Project will replace ten (10) exis0ng trees that are in poor health according to Ontario’s Municipal Code. Upon comple0on of construc0on, exis0ng surfaces will be restored at connec0on points and along the new and converted recycled water mains according to current standards in the City’s Municipal Code.
REGIONAL ACCESS AND LOCATION
The Project is within southwestern San Bernadino County. The Project and the City of Ontario are approximately 40 miles east of downtown Los Angeles (DTLA), via regional transporta0on routes I-10 and State Route 60 (SR-60). Surrounding ci0es include Upland and Rancho Cucamonga to the north; Montclair and Chino in the west and southwest; Jurupa Valley and unincorporated San Bernardino County to the east (See Figure 1: Regional Loca0on Map). Ontario is located approximately 6 miles south from the foothills of the San Gabriel Mountains; approximately 9 miles east and northeast of Chino and Puente Hills, and approximately 17 miles north of the Santa Ana River. Ontario is approximately 23 miles west of Lytle Creek Wash (Ontario Plan 2015 EIR 2022).
As shown on Table 6: Project Components (APE) and Regional Loca/on and Local Vicinity Figures 1, 2, 2A and 2B, the recycled water improvements proposed with the Project are bisected into dis0nct north and south loca0ons within exis0ng paved and developed City of Ontario ROW. The north part of the Project is near the western city limits, I-10. The closest regional transporta0on route to the north is I-10, approximately 1.6 miles north of the Civic Center complex. The south part of the Project is near the southwest city limits. The closest regional transporta0on route to the south por0on of the Project is SR60, which is approximately 0.75 miles north of the intersec0on of Euclid Avenue and E. Riverside Drive.
SETTING AND BACKGROUND
The Project will be implemented within an urban seVng at Ontario’s southern gateway at Euclid Avenue; this area is fully developed with a variety of land use, u0li0es, community facili0es, and important historical resources.
The Project is in an area that experiences a Mediterranean-type climate favorable for agriculture. During its early years, Euclid Avenue was the nucleus of the Ontario Irriga0on Colony (Ontario Colony), consis0ng of primarily agricultural communi0es, growing and expor0ng citrus. Euclid Avenue was established as a focal point and a regional transporta0on route for the Ontario Colony and surrounding areas that eventually grew and became incorporated as the City of Ontario. Growth in Ontario has been con0nuous since incorpora0on in 1891 and has led to a wide variety of land use. Between the late 1800’s through the mid-1960’s, Euclid Avenue served as a regional transporta0on route un0l the modern regional freeway system was completed. From the 0me of its construc0on, Euclid Avenue has been and con0nues to serve as a community gateway and major thoroughfare.
Surrounding the Project, at the north end, there are mixed-use, ins0tu0onal, residen0al, and commercial proper0es that are adjacent to the Project within Ontario’s Downtown District and Euclid Avenue Historic 561
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 21 District; the Downtown District is a planned revitaliza0on area and includes the Civic Center area (City Hall, Library, and Town Center). The Downtown District overlaps with the Euclid Avenue Historic District, which consists of development adjacent to Euclid Avenue in various styles of architecture from 1887 through the 1960’s; original Victorian-era buildings through post-war development make up the seVng for the Project within the Euclid Avenue Historic District on the north end of the Project. Por0ons of the north end of the Project are also within the boundaries of the Euclid Avenue Historic Property (ROW protected under the Euclid Avenue HPTMP). The period of historical significance for Euclid Avenue is 1882 to 1940, beginning with the date of the Ontario Colony. The Euclid Avenue Historic Property consists of the en0re 200-foot-wide street ROW including landscaped Parkways and paved travel lanes on both sides of a broad landscaped median: The Euclid Avenue ROE includes a 60-foot-wide median extending along the full length of Euclid Avenue and 15-foot-wide side parkways between the back of the sidewalks and front property lines on each side of the paved travel lanes. Northbound and southbound lanes of traffic (two lanes in each direc0on) are separated by the landscaped median, which includes grass lawns flanked by rows of trees and rose beds; City improvements include public benches, fountains, drinking fountains, and other important community structures; the median has been divided at intersec0ons with cross streets (at 4th Street, J Street, I Street, E Street, G Street, F Street, E Street, D Street C Street, and B Street).
Parkways that are adjacent to the northbound and southbound travel lanes of Euclid Avenue are comprised of a combina0on of historic and modern curb, gu@er, sidewalks, and addi0onal trees.
There are modern tract homes, undeveloped land, and agriculture near the southern city limits at the south end of the Project. Land that is south and southwest of the Project is planned for future development under Ontario’s Municipal Code as Specific Plan Overlay (south of E. Riverside Avenue) and in the Borba Village Specific Plan (West of Euclid Avenue).
Within the boundaries of the Project the important features that contribute to the environmental seVng include the original Character Defining Features (CDF) of the Euclid Avenue ROW that were iden0fied in the Euclid Avenue HPTMP: Peruvian pepper trees in the Euclid Avenue median, any silk oak trees in the parkway, and any oaks planted in the parkway between Holt Boulevard and E. G Street, curved Armstrong rose beds, granite cobblestone curbs, scored sidewalks, and vintage street ligh0ng. Structures within the median that contribute to the environmental seVng for the Project and Ontario’s community character include the Gravity Mule Car Replica (Mule Car), reconstructed Community Bandstand (Bandstand), Women’s Chris0an Temperance Union Drinking Fountain (WCTUDF), and Veteran’s Obelisk. A total of 729 trees surrounding the Project, with trunk diameters exceeding 5 inches, were inventoried for the Project.
Ten (10) of the surveyed trees were iden0fied as being in poor health and requiring immediate removal with the Project and 163 trees were iden0fied as needing close monitoring following construc0on of the Project.
Exis0ng infrastructure above and below ground surface within Euclid Avenue include conduit for electricity, street ligh0ng, communica0ons infrastructure, and wet u0li0es (water, sewer, storm drainage, and irriga0on). Within the E. Riverside Drive right-of-way, at the south end of the Project, underground u0li0es consist of a 12-inch diameter potable water main, serving adjacent land use. Approximately 200 feet east of the intersec0on of E. Riverside Drive and Baker Avenue, a 24-inch recycled water main is located within the City right-of-way. The Project seVng is fully developed except for agricultural land south of E. Riverside Avenue.
562
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 22 AREA OF POTENTIAL EFFECTS
The Area of Poten0al Effects (APE) is within paved streets and por0ons of landscape open space/parks where construc0on, tree maintenance, and staging are proposed for the Project; these areas are collec0vely referred to as the Area of Poten0al Effects (APE) because this is where direct impacts from the Project will occur. An inventory of the APE is provided in Table 6: Project Components (APE). Impacts within the APE will be temporary and intermi@ent due to construc0on ac0vi0es, such as earthwork, tree maintenance, temporary lane closures, pipeline construc0on, excava0on, and trenching. The APE will be restored to pre project condi0ons pursuant to standards of Ontario’s Municipal Code aFer construc0on is complete. The APE consists of paved travel lanes and Parkway within por0ons of Ontario’s ROW designated as Primary Arterials, Minor Arterials, Collector Streets, and Local Roadways on GP Figure M01, Mobility. The APE includes the following loca0ons where laterals, meters and connec0ons are proposed: James R. Bryant Park (at the northwest parcel corner); East side of the intersec0ons with Euclid Avenue at E. E. Street, E. C Street and E. B Street (for the Civic Center area), Euclid Avenue median (Laterals are proposed approximately 200 feet south of the Mule Car, east side of the median at the Grand Stand, north of E. B Street, and midway between E Street and F Street, at the southerly parcel boundary of Centennial Park, and along the south parcel boundary of Riverside Parkway). Tree removal/replacement are proposed within the Parkway of Euclid Avenue. A detailed descrip0on of the APE and proposed work is provided below and in Table 6: Project Components (APE) and in Figures 2A and 2B, Local Vicinity.
A new recycled water main will be constructed in the northbound lane of Euclid Avenue, adjacent to the Euclid Avenue median, between 4th Street and E. Holt Boulevard; new mains will branch to the east and west from the new recycled water main in Euclid Avenue within por0ons of W. F Street, W. Flora Street and N. Vine Avenue. The Project will construct connec0ons and will convert exis0ng potable water mains located in E. E Street, E. C Street, E. B Street, and N. Lemon Avenue to recycled water. The Project will install laterals from the new and converted recycled water mains to exis0ng irriga0on systems for the Euclid Avenue center median, James R. Bryant Park, the Civic Center complex (City Hall/Seniors’ Center), and Town Square Park (amphitheater/recrea0on center) within the Northern Project Area.
Northern Por6on of Project
Segment 1
The Project APE is at a point of connec0on in the northbound lane of Euclid Avenue to the exis0ng IEUA recycled water main within the Euclid Avenue and 4th Street intersec0on. A new main will be constructed in northbound Euclid Avenue between 4th Street and E. Holt Boulevard adjacent to the median. Laterals and connec0ons will be constructed in developed public ROW to connect the new main at four (4) loca0ons along the east side of the Euclid Avenue center median to the exis0ng irriga0on systems in the median. Tree maintenance is proposed north of E. Holt Boulevard. Within the median of Euclid Avenue, the following lateral loca0ons and tree maintenance are proposed:
• North of Holt Boulevard at Euclid Avenue a lateral to service exis0ng sprinklers will be constructed to serve the Euclid Avenue median approximately 200 feet south from the Mule Car (Trolley Exhibit Building). This sec0on of the Euclid Avenue median includes benches, irriga0on (sprinklers and bubblers) and drinking fountains. Immediately north of Holt Blvd. right-of-way, two (2) exis0ng trees in the east side of the median (Tree #’s 337 and 338) are proposed for removal/replacement due to exis0ng poor health.
• East of the Grandstand a lateral will be installed as a connec0on between the exis0ng irriga0on system and the main proposed in northbound Euclid Avenue. This sec0on of median includes modern curb and gu@er at the lateral loca0on.
563
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 23 • North of E. B Street at Euclid Avenue a recycled water lateral will be installed approximately 120 feet north of the Veterans Obelisk within the median. This sec0on of median includes modern curb and gu@er at the lateral loca0on.
• Midway between E. E Street and E. F Street, a new recycled water lateral will be installed from the new main in northbound Euclid Avenue. This sec0on of median includes modern curb and gu@er at the lateral loca0on. One (1) tree removal/replacement (#365) is proposed in the east side of the median north of E. E Street.
• South of E. G Street, one (1) tree removal/replacement (#379) is proposed in the east side of the median.
• Three (3) tree removals/replacements (402, #403, and #405) are proposed in the east side of the median south of E. El Morado Court.
• One (1) tree removal/replacement (#408) is proposed in the east side of the median south of E.
H Street.
• One (1) tree removal/replacement (#482) is proposed in the parkway east side of the Euclid Avenue ROW and south of E Granada Court.
Segment 2
The APE for the Project mains is proposed within paved por0ons of streets and where a lateral will be constructed at James R Bryant Park. Recycled water mains will be constructed within paved por0ons of eastbound W. F Street from northbound Euclid Avenue to northbound N. Vine Avenue, from N. Vine Avenue to westbound W. Flora Street to the northwestern corner of James Bryant Park. Laterals at James Bryant Park will require an approximate 10-foot by 10-foot area for construc0on of a connec0on at the meter near the intersec0on of San Antonio Avenue and W. D Street. One (1) tree removal (#212) is proposed north of James R. Bryant Park.
Segment 3
The APE for the recycled water main will be within westbound E. B Street; it will connect to an exis0ng 8- inch diameter recycled water main near N. Lemon Street east of Euclid Avenue to convert exis0ng potable water mains to recycled water to serve the Civic Center area and will require minimal earthwork.
Segment 4
The APE for E. C Street will be in the eastbound lane from the Euclid Avenue/E. C Street intersec0on to west of Lemon Avenue. Three (3) laterals adjacent to Ontario Town Square and Ontario City Hall (C St and D St roundabout) will be installed to connect recycled water service to an exis0ng 8-inch diameter recycled water main.
Segment 5
The APE for E. E Street is within the eastbound lanes between Euclid Avenue to an unnamed alley to the east of Euclid Avenue. The APE will extend approximately 303 LF along E. E Street towards an unnamed alleyway, to the east, where it will terminate and be stubbed for future use.
Southern Por6on of the Project
Segment 6
E. Riverside Drive between Euclid Avenue and 200 feet east of Baker Avenue; the Project will install laterals from the new recycled water main to exis0ng irriga0on systems for Centennial Park and Riverside Parkway. The APE is where a new recycled water main will be constructed in eastbound E. Riverside Drive, a 6-lane east-west Minor Arterial containing a Class II Bicycle Lane. 564
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 24 Euclid Avenue ROW (E. Riverside Drive and E. Walnut Street) Euclid Avenue median, between E. Riverside Drive and E. Walnut Street, that will be converted to recycled water and connected to Ontario’s recycled water distribu0on system with new laterals. The Project will supply recycled water to a por0on of the landscaped median on Euclid Avenue between E. Riverside Drive and E Walnut Street.
Centennial Park
Centennial Park is adjacent to the south of the westbound lanes E. Riverside Drive. The neighborhood park was developed in 1983 and contains basketball courts; picnic tables; a pedestrian/ bike path; a park area; a tot lot; and exercise equipment. The APE here will consist of a 10-foot-wide open trench within exis0ng passive open space.
Riverside Parkway
The parkway on Riverside Drive is located adjacent to the westbound lanes of E. Riverside Drive between Centennial Park and Bon View Avenue. The parkway is landscaped with ornamental trees, bushes, grasses; overhead powerlines; and streetlights. The APE here will consist of a 10-foot-wide open trench within exis0ng passive open space.
TABLE 6: PROJECT COMPONENTS (APE)
Segment
No.
Proposed
Structure
Public right-of-way +
Direc6on of Pipeline
Construc6on
Pipe Size &
Length
Lat/Long; Eleva6on Area of Temporary
Disturbance
NORTHERN PORTION
1 New
Recycled
Water
Main
Public right-of-way:
Northbound lane of Euclid
Avenue adjacent to the
median (City right-of-way;
mixed-use corridor)
Direc6on: North from Holt
Blvd to 4th Street; connect
to exis6ng 30” IEUA
pipeline at 4th Street
Public right-of-way:
Euclid Avenue (City rightof-way; mixed-use
corridor)
Size: 8”
diameter
Length: ~ 5,300
LF
Beginning of Proposed
Segment:
Longitude 34.063327,
La6tude -117.65095;
~1,000 Q AMSL
End of Proposed
Segment:
Longitude 34.077882,
La6tude -117.651218;
~990 Q AMSL
Open Trenching:
30-inches wide x 72-
inches deep for
~5,300 LF
Construc6on Area:
Full width 24-feet
Recycled
Water
Lateral to
Exis6ng
Irriga6on
System for
Euclid
Avenue
Public right-of-way: Euclid
Avenue (City right-of-way;
mixed-use corridor) center
median between B Street
and C Street
Three Lateral
Pipes Size: 4”
diameter
connec6on to
exis6ng
irriga6on
system
Length: ~20 LF
Longitude 34.065176,
La6tude -117.65046;
~1,023 Q AMSL
Open Trenching: 2 Q
wide x 2 Q deep for ~
20 LF
Public right-of-way: Euclid
Avenue (City right-of-way;
mixed-use corridor) center
median between C Street
and D Street
Pipe Size: 4”
diameter
Exis6ng
irriga6on
system
Length: ~15 LF
Longitude 34.068881,
La6tude -117.650951;
~1,020 Q AMSL
Open Trenching: 2 Q
wide x 2 Q deep for
~15 LF
565
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 25 Segment
No.
Proposed
Structure
Public right-of-way +
Direc6on of Pipeline
Construc6on
Pipe Size &
Length
Lat/Long; Eleva6on Area of Temporary
Disturbance
Public right-of-way: Euclid
Avenue (City right-of-way;
mixed-use corridor) center
median between F Street
and E Street
Tree
Removals (9
trees)4
Public right-of-way:
Euclid Avenue (City rightof-way; mixed-use
corridor) center median
between E. Granada Ct.
and E. G Street
Tree #:
482:Lat/Long 34.073078, -117.650769 (P)
408: Lat/Long 34.071956, -117.650975 (M)
405:Lat/Long 34.071519, -117.650969 (M)
403: Lat/Long 34.071209, -117.650999 (M)
402: Lat/Long 34.071109, -117.650989 (M)
379: Lat/Long 34.070151, -117.650969 (M)
365: Lat/Long 34.068364, -117.650980 (M)
338: Lat/Long 34.063801, -117.650933(M)
337: Lat/Long 34.063629, -117.650946 (M)
20 Q square, 4Q deep
Tree Removals
(8 median (M) trees
and 1 parkway (P)
tree)
2 New
Recycled
Water
Main
Public right-of-way:
eastbound lane of W. F
Street (Collector Street)
Direc6on: West from
Euclid Avenue to Vine
Avenue
Size: 8”
diameter
Length: ~1,530
LF
Beginning of Proposed
Segment:
Longitude 34.069430,
La6tude -117.650860;
~1,010 Q AMSL
End of Proposed
Segment:
Longitude 34.068799,
La6tude -117.660188;
1,023 Q AMSL
Open Trenching:
26-inches wide x 68-
inch deep
Construc6on Area:
Full width 24-feet
New
Recycled
Water
Main
Public right-of-way:
northbound lane of N. Vine
Avenue (Collector Street)
Direc6on: South from F
Street to Flora Street
Size: 8”
diameter
Length: ~200 LF
New
Recycled
Water
Main
Public right-of-way:
westbound lane W. Flora
Street (Collector Street)
Direc6on: East from Vine
Avenue to James R. Bryant
Park
Size: 8”
diameter
Length: ~1,290
LF
Recycled
Water
Lateral
to Exis6ng
Irriga6on at
James R.
Bryant Park
James R. Bryant Park Pipe Size: 2”
Diameter
connec6on to
exis6ng
irriga6on
system
Length: ~20 LF
Longitude 34.068610,
La6tude -117.660107;
~1,023 Q AMSL
Open Trenching: 2 Q
wide x 2 Q deep
Tree
Removals
(1) - #2124
Public right-of-way:
westbound lane Flora
Street (Collector Street) at
from James R. Bryant Park
Tree 212: Lat/Long: 34.068758,-
117.659819
20 Q square, 4Q deep
Tree Removal
566
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 26 Segment
No.
Proposed
Structure
Public right-of-way +
Direc6on of Pipeline
Construc6on
Pipe Size &
Length
Lat/Long; Eleva6on Area of Temporary
Disturbance
3 Recycled
Water
Lateral
to Civic
Center
Public right-of-way: B
Street
City Civic Center buildings
(City Hall/ Senior Center)
Pipe Size: 4”
diameter
connec6on
to Exis6ng
irriga6on
system
Longitude 34.065822,
La6tude -117.649520;
990 Q AMSL
Open Trenching: 2 Q
wide x 2 Q deep
Town Square Park Pipe Size: 4”
diameter
connec6on to
exis6ng
irriga6on
system
Longitude 34.064892,
La6tude -117.648351;
990 Q AMSL
Open Trenching: 2 Q
wide x 2 Q deep
Public right-of-way:
westbound lane of B Street
Ontario City Hall (Police &
Fire Department)
Pipe Size: 4”
diameter
connec6on to
exis6ng
irriga6on
system
Longitude 34.06467,
La6tude -117.64654; 990
Q AMSL
Open Trenching: 2 Q
wide x 2 Q deep
Recycled
Water
Main
Public right-of-way: B
Street
Direc6on: East of Euclid
Avenue and west of Lemon
Avenue
Size: 8”
diameter
Length: ~55 LF
Beginning of Proposed
Segment:
Longitude 34.064606,
La6tude -117.650853;
~997 Q AMSL
End of Proposed
Segment:
Longitude 34.064606,
La6tude -117.650220;
~997 Q AMSL
Open Trenching:
26-inches wide x 68-
inch deep for ~55 feet
Construc6on Area:
Full width 24-feet
Convert
exis6ng 8-
inch
potable
water
pipeline to
recycled
water
Civic Center area along B
Street and Lemon Avenue
Size: 8”
diameter
Length: ~2,340
LF
Longitude 34.065822,
La6tude -117.649520;
990 Q AMSL
Excava6on:
10 Q wide by 10 Q
deep
4 New
Recycled
Water
Main
Public right-of-way:
eastbound lane of C Street
Direc6on: East of Euclid
Avenue to connec6on with
exis6ng 8” RW main
Size: 8”
diameter
Length: ~110 LF
Beginning of Proposed
Segment:
Longitude 34.069430,
La6tude -117.650860
Open Trenching:
26-inches wide x 68-
inch deep for ~110
feet
Construc6on Area:
Full width 24-feet
5 New
Recycled
Water
Main
Public right-of-way:
Eastbound lane of East E
Street (City right-of-way)
Direction: East from
Euclid Avenue to
an unnamed alleyway.
Size: 8”
diameter
Length: 303 LF
Aboveground
appurtenanc
Beginning of Proposed
Segment:
Lat/Long:
34.068246, -117.65082
~1,020 Q AMSL
Open Trenching: 2 Q
wide x 2 Q deep for ~
303 LF
567
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 27 Segment
No.
Proposed
Structure
Public right-of-way +
Direc6on of Pipeline
Construc6on
Pipe Size &
Length
Lat/Long; Eleva6on Area of Temporary
Disturbance
es: air valve
and blow o$
valve located
within the
landscaped
area of o$ E. E
Street.
End of Proposed
Segment:
Lat/Long:
34.068262, -117.650273
~1,020 ft AMSL
SOUTHERN PORTION
6 New
Recycled
Water
Main
Public right-of-way:
eastbound and center
lanes of E. Riverside Drive
(6-lane Minor Arterial)
Direc6on: West from
between Baker Avenue
and Vineyard Avenue
(channel) to Euclid Avenue
Size: 24”
diameter
Length:
~11,130 LF
Beginning of Proposed
Segment:
Longitude 34.019221,
La6tude -117.599588;
1,000 Q AMSL
End of Proposed
Segment:
Longitude 34.019613,
La6tude -117.614529;
~778 Q AMSL
Open Trenching:
42-inches wide x 84-
inch deep for ~11,130
LF
Construc6on Area:
Full width 24-feet
Recycled
Water
Main
Conversion
Euclid Avenue center
median between SR-60
and E. Riverside Drive
Exis6ng
irriga6on
system
Size: 8”
diameter
Length: ~100 LF
Longitude 34.019353,
La6tude -117.650736
Open Trenching: 2 Q
wide x 2 Q deep for
~100 LF
Recycled
Water
Lateral
to Exis6ng
Irriga6on at
Riverside
Parkway
Parkway along E. Riverside
Drive west of Bon View
Avenue
Exis6ng
irriga6on
system
Size: 2”
diameter
Length:~ 40 LF
Longitude 34.019473,
La6tude -117.648113
Excava6on:
10 Q wide by 10 Q
deep
Recycled
Water
Lateral
to Exis6ng
Irriga6on at
Centennial
Park
Centennial Park Exis6ng
irriga6on
system
Size: 2”
diameter
Length: ~ 25 LF
Longitude 34.019512,
Longitude -117.640027
Excava6on:
10 Q wide by 10 Q
deep
Reference: See Figure 2A: Northern Por6on Local Vicinity Map & Figure 2B: Southern Por6on Local Vicinity Map Notes: 1) LF= LF
2) Average dimensions of trenching are 6 feet wide by 8 feet deep. 3) AMSL is an acronym for Above Mean Sea Level
4) Denotes a Character Defining Feature for Euclid Avenue Historic Property 568
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 28 LOCAL VICINITY
The Local Vicinity consists of areas surrounding APE. The Local Vicinity is where temporary indirect impacts from construc0on may be no0ceable such as traffic delays from Project detours, visible construc0on equipment and ac0vi0es, and audible intermi@ent construc0on noise. Impacts will be temporary within the Local Vicinity, which consists of developed or improved land surrounding APE or agricultural land south of the APE. Land use, city programs and sensi0ve receptors in the Local Vicinity are described according to loca0on and proximity with Project construc0on in the following paragraphs. The northern part of the Project is within overlapping historic areas, either designated as historic districts or poten0al historic districts.
NORTHERN PROJECT AREA
Euclid Avenue Historic District
The Euclid Avenue Historic District encompasses the street ROW and adjacent proper0es. Within the Euclid Avenue median and parkways modern addi0ons are present and include curb/gu@er/sidewalks, bike lanes and sharrows in both north and southbound direc0ons, crosswalks, overhead electrical and communica0on lines, an exis0ng 39-inch storm drain, and a 16-inch potable water main are located underground within the southbound lane, running parallel to Euclid Avenue’s Center Median. Currently, a 16-inch potable water main provides irriga0on to Euclid Avenue’s landscaped median. The Euclid Avenue Historic District includes 102 historic-age (over 50 years old) structures and mature landscaping within and adjacent to Euclid Avenue. (Segments 1 and 2).
Poten6al Downtown West Addi6onal Local Historic District This poten0al district is between West Flora Street on the north, West Vesta Street on the south, Vine Avenue on the east, and Beverly on the west and the Project coincides along West Flora Street between Vine Avenue on the east and its western terminus at James R. Bryant Park. This poten0al district has not been officially designated but it does contain street trees and granite cobblestone curbs, both of which have been determined character defining features of designated districts elsewhere.
Proposed Downtown Historic District
The City has depicted this proposed district between Lemon Avenue on the east, Laurel Avenue on the west, West G Street on the north, and the railroad overpass on the south. The project alignment coincides with this proposed district on Euclid Avenue from B Street in the south to the district’s northern terminus at G Street. The project alignment also crosses this district on West F Street from Euclid Avenue on the east to North Laurel Avenue on the west. The Euclid Avenue Mule Car/Tracks is also located within this historic district. This proposed district has not been officially designated but it does contain street trees and granite cobblestone curbs, both of which have been determined character defining features of designated districts elsewhere.
Proposed Downtown West Historic District
Ontario has depicted this proposed district between Laurel Avenue on the east, Vine Avenue on the west, G Street on the north, and C Street on the south. The project alignment coincides with this proposed district on F Street between Laurel Avenue on the east and Vine Avenue on the west. This proposed district has not been officially designated but it does contain street trees and granite cobblestone curbs, both of which have been determined character defining features of designated districts elsewhere. 569
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 29 Euclid Avenue Historic Property (4th Street to E. Holt Boulevard) Euclid Avenue Historic Property includes the Euclid Avenue ROW between I-10 on the north and Philadelphia Street on the south and is where the northern part of the Project is located (between 4th Street and E. Holt Boulevard). Por0ons of Euclid Avenue have been listed on the NRHP and the CRHR since 2005 as an important example of community planning and development; social history; and landscape architecture.
The Local Vicinity surrounding the Project (Segments 1 through 5) consists of a mixture of commercial businesses, ins0tu0onal facili0es, mixed-use, parks, open space, and residen0al neighborhoods within the context of historic districts. Chaffey High School is approximately 200 feet north of the Project at 4th Street and Euclid Avenue intersec0on within Ontario’s Historic District (Segment 1). The Local Vicinity within the median and side parkways of Euclid Avenue express the intended design of Euclid Avenue; as it was originally constructed with visual symmetry established by the rows of trees along the edges of broad parkways and landscaped setbacks. The original trees were planted in 1883, making them over 140 years old. Some of the exis0ng trees have trunks over three feet wide. Over the years some trees have been replaced, and other trees have been added. The original design consists of a double row of Peruvian pepper trees (Schinus molle) in the median, planted 50 feet apart and the parkways at the back of the sidewalks feature a single row of silk oak trees (Grevilia robusta) that are planted 30 feet apart. This layout is consistent and predominant within the northern part of the Project and photos along Euclid Avenue show varia0ons in tree and landscaping maturity indica0ng replacement and more recent plan0ng within the Euclid Avenue median and parkways over 0me. Historic features of Euclid Avenue in the Local Vicinity that will not be directly impacted by Project construc0on due to setbacks shown on the plans and are listed as follows:
• Bandstand (north of E. C Street);
• Veterans Obelisk (north of E. B Street);
• Mule Car (south of E. B Street);
• WTUDF (north of E. C Street);
• Armstrong rose beds;
• King Standard Lampposts and reconstructed lampposts (both referred to as vintage streetlights); • Granite and concrete curb and gu@er; and,
• Scored sidewalks in the parkways.
The rose beds, vintage streetlights, historical masonry and cobblestone curbs, gu@ers and drainage structures are located north of E. F Street. South of E. F Street the curb, gu@er, sidewalks and streetlights are modern. Other features within the median include modern benches, hardscape, signage, and drinking fountains.
4th Street
4th Street is a 2-lane east-west collector street; it is approximately 35 feet wide. (Segment 1). Surrounding land use includes residen0al proper0es and Chaffey High School at the northwest corner of 4th Street and Euclid Avenue within the Euclid Avenue Historic District. 570
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 30 W. F Street, N. Vine Avenue, and Flora Street
W. F Street, N. Vine Avenue, and Flora Street are city collector streets, 35 feet wide within primarily residen0al areas of Ontario’s Downtown District. These roadways contain pedestrian walkways along either side of the public right-of-way. Electrical lines are located overhead along the west side of N. Vine Avenue and south side of W. Flora Street. A por0on of F Street is located within the Euclid Avenue Historic Downtown West Addi0on Historic District. Surrounding land use consists of residences. A por0on of this segment is within the poten0al (Segment 2)
James R. Bryant Park
The park consists of 9.6 acres located at the northeast corner of San Antonio Avenue and W. D Street and surrounded by residen0al development. This is a neighborhood park that offers a children’s play area, tot lot, exercise equipment, restrooms, basketball courts, tennis court, baseball field and a fenced dog park. (Segment 2)
E. B Street and N. Lemon Avenue
E. B Street and N. Lemon Avenue are minor arterials located within Ontario’s downtown historic district.
Surrounding land use consist of civic center buildings, commercial and mixed use. (Segment 3).
E. C Street
E. C Street is a minor arterial. The Project main in this area will provide irriga0on water for the Civic Center, Library and Town Square. Historic structures within the Euclid Avenue median near E. C Street are approximately 30 feet west of E. C Street and include the Bandstand. (Segment 4).
E. E Street
E. E Street is a minor arterial and located within Ontario’s downtown historic district. Surrounding land use consists of commercial businesses (Segment 5).
SOUTHERN PROJECT AREA
On the south end of the Project, plans show a point of connec0on with the exis0ng City of Ontario recycled water system located approximately 200 feet east of E. Riverside Drive at Baker Avenue. The Local Vicinity includes the modern residen0al tract development north of E. Riverside Drive and agriculture south of the eastbound lanes of E. Riverside Drive between Euclid Avenue and the exis0ng point of connec0on 200 feet east of Baker Avenue.
E. Riverside Drive
Surrounding land use consists of residen0al, commercial, open space, and agriculture. Centennial Park is adjacent to the north of E. Riverside Drive; Levi Dickey High School is approximately 620 feet north of E.
Riverside Drive and S. Parco Avenue; Whispering Lakes Golf Course, approximately 100 feet north of the E. Riverside Drive and S. Whispering Lanes Lane; Cucamonga Channel, Westwind Community Center, and Westwind Park, approximately 0.3 miles from the easternmost terminus of the E. Riverside Drive alignment (Segment 6).
571
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 31 Euclid Avenue ROW (E. Riverside Drive and E. Walnut Street) Euclid Avenue median between E. Riverside Drive and E. Walnut Street that will be converted to recycled water and connected to Ontario’s recycled water distribu0on system with new laterals and a new main connec0on from the new Project main in E. Riverside Drive. Euclid Avenue in this area of the Project includes the historic-age parkway and sidewalk layouts. Curbs and gu@ers have been replaced. The southern part of the Project will extend service laterals from E. Riverside Drive to adjacent por0ons of exis0ng irriga0on systems for Centennial Park the Riverside Parkway on the north side of E. Riverside Drive west of Baker Avenue. Surrounding land use includes residen0al and commercial along northbound Euclid Avenue. There are modern curb, gu@er, and sidewalks along the Parkways in this area. Landscaping within the Parkways consists of grass and mature trees planted symmetrically along the borders.
Centennial Park
Centennial Park is adjacent to the south of the westbound lanes E. Riverside Drive. The neighborhood park was developed in 1983 and contains basketball courts; picnic tables; a pedestrian/bike path; a park area; tot lot; and exercise equipment. The APE here will consist of a 10-foot-wide open trench within exis0ng passive open space.
Riverside Parkway
The parkway on E Riverside Drive is located adjacent to the westbound lanes of E. Riverside Drive between Centennial Park and Bon View Avenue. The parkway is landscaped with ornamental trees, bushes, grasses; overhead powerlines; and streetlights. The APE here will consist of a 10-foot-wide open trench within exis0ng passive open space.
PROJECT CONSTRUCTION
Proposed construc0on ac0vi0es consist of open trench construc0on. Potholing will occur prior to Project construc0on to avoid direct impacts to exis0ng u0li0es and structures. Temporary barriers will be installed to isolate areas of ac0ve construc0on and staging, separa0ng them from sensi0ve resources such as historical CDF and tree root zones. Upon comple0on of installa0on of recycled water pipes, connec0ons, and appurtenances, the trenches will be backfilled and surfaces restored to pre-project condi0ons according to standards of the Ontario Municipal Code. Project construc0on is an0cipated to begin in winter of 2025 and conclude in winter of 2026, las0ng for approximately eleven months.
Construc0on ac0vi0es will occur between 7:30 AM and 4:30 PM, Monday through Friday; weekend work will be avoided when feasible, however, weekend or night work may occur to avoid peak traffic. The installa0on rate of the recycled water mains is expected to average 60 to 80 LF per day.
Construc0on ac0vi0es will require a maximum of approximately six to eight crew members2 at any one 0me for a total of 16 people working on the job daily during ac0ve construc0on. Crew members will get to the construc0on site u0lizing personal vehicles, approximately 16 vehicles at any one 0me, accessing the construc0on site via local roadways and will park along paved ROW, adjacent to areas of ac0ve construc0on within the roadway, shoulder or at the street curbs. Temporary fencing will be placed around the perimeter of each work area to secure construc0on sites. In addi0on to fencing, ac0ve construc0on 2 The number of construc6on crew members is an assump6on based on the scale of the Proposed Project and type of infrastructure being implemented.
572
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 32 will either be backfilled or covered with trench plates at the end of each day. Water for construc0on and potable water during construc0on ac0vi0es will be supplied by the City of Ontario’s water system.
Equipment
Construc0on ac0vi0es will involve the u0liza0on of a variety of diesel-powered equipment along the Project Alignment throughout construc0on. Poten0al equipment on-site during construc0on include two (2) scrapers, one (1) tractor/ loaders/ backhoe, two (2) off-highway trucks, two (2) plate compactors, two (2) excavators, two (2) other material handling equipment, two (2) paving equipment, two (2) other construc0on equipment, four (4) pumps, two (2) skid steer loaders, two (2) surfacing equipment, two (2) rubber 0ered dozers, and two (2) cranes. During temporary Project construc0on, equipment will be kept at a designated laydown yard or the Project contractor’s own facility.
Staging
Staging areas will be located inside exis0ng public right-of-way along various loca0ons of the Project Alignment. These staging loca0ons will depend on the por0on of the alignment under construc0on as well as avoidance of sensi0ve resources that could be damaged.
Schedule and Phasing
Construc0on would not be phased. The contractor will lay approximately 60 to 80 LF of pipeline per day over a period of approximately 795 calendar days (555 working days) un0l the en0re Project has been constructed. U0lity potholing will occur prior to open trench construc0on and excava0on.
LONG-TERM OPERATIONS AND MAINTENANCE
The Project is an0cipated to be opera0onal for a minimum of 50 years from comple0on of construc0on.
Ontario will operate and manage the Project in a similar manner to exis0ng condi0ons according to Ontario’s Municipal Code. Therefore, Ontario does not an0cipate addi0onal staffing needs for long-term opera0on and maintenance of the Project. Monthly worker trips over the life0me of the Project will be for rou0ne inspec0ons and ensure proper long-term maintenance. 573
SAN BERNARDINO
COUNTY
RIVERSIDE COUNTY
Ontario
Upland
Rancho
Cucamunga
Jurupa
Valley
Montclair
SR-60
US 66 US 66 US 66
I-10
I-10 I-10
I-15
I-15
I-15
I-15
CA-83
E
u
clid
A
v
e
n
u
e
CA-83
Figure 2B. Southern Portion
Figure 2A.
Northern Portion
Walnut Avenue
Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), (c) OpenStreetMap contributors, and the GIS User Community
Figure 1. Regional Location Map
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Esri, HERE, Garmin, (c) OpenStreetMap
contributors, and the GIS user
community, Source: Esri, Maxar,
Earthstar Geographics, and the GIS
User Community
Project
Locations
Legend
Proposed Recycled Water Pipeline
Highway
San Bernardino County Limits
Upland
Rancho Cucamonga
Ontario
Montclair
Jurupa Valley
0 0.5 1 2 3 4
Miles ¯
574
!(
!(
#* #*
#*#*#*
#* #*#*
Ontario
FIGURE 2B. Southern Portion
FIGURE 2A. Northern Portion
E
u
clid
A
v
e
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community 0 0.5 1
Mile
Figure 2. Local Vicinity Key Map
¯
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
SR-60 SR-60
I-10
Legend
#* Recycled Water Lateral
!( IEU Connection Point
Conversion of Existing Potable Water Pipeline to RW
Segment 3
Segment 6
Proposed Recycled Water Pipeline
Segment 1
Segment 2
Segment 4
Segment 5
Segment 6
S
a
n
A
n
t
o
nio
A
v
e
L
e
m
o
n
A
v
e
S
ult
a
n
a
A
v
e
E St
C St
B St
Holt Blvd
4th St
Flora St
Vin
e
A
v
e
F St
Riverside Dr
E
u
clid
A
v
e
Walnut St
Vin
e
y
a
r
d
A
v
e
B
a
k
e
r
A
v
e
575
*# *#
*#
*#
*#
!(
W Flora Street
W F Street
N
Vine
A
v
enue
S San Antonio
A
v
enue
E F Street
W D Street E D Street
E 4th Street
W 4th Street
Le
m
on A
v
enue
Existing 30-inch IEUA
Recycled Water Main
N San Antonio
A
v
enue
James R. Bryant
Park
W E B Street B Street
S Sultana A
v
enue
N Sultana A
v
enue
West E Street
W E 1st Street 1st Street
Civic Center &
Town Square Park
East E Street
18 E C Street
E Holt Blvd E Holt Blvd
N
Vine
A
v
enue
W C Street
Euclid
A
v
enue
Railroad
Chaffey High
School
6 4
3 1
2 5
7 8
9 10
11 12
13 14
18 15 17
19 20
16 Euclid
A
v
enue
Railroad
379
365
338
337
482
408
403
402
Alley
W G E G Street Street
E El Morado Court
W H Street E H Street
W E Granada Court Granada Court
Alley
21. Community Bandstand and
WTCU Drinking Fountain
(median north of E C St/Euclid Ave
22. Veterans
Memorial (median
north of E C St/
Euclid Ave
23. Gravity Mule Car
Replica (median
north of E C St/
Euclid Ave
405
212
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Figure 2A. Northern Portion Local Vicinity Map
Ontario Downtown District
Surrounding Land Uses
1. Chaffey High School
2. Vina Danks Middle School
3. Chaffey Memorial Library
4. Champions at Euclid Elementary
5. Turciz Family Daycare
6. First United Methodist Church
7. New Apostolic Church
8. American Inn
9. First Lutheran Church Ontario
0 0.05 0.1 0.2 0.3 0.4
Miles ¯
#
19. Snyder Ontario Apartments Metro 102
20. San Antonio School
Euclid Avenue Historic District
Railroad
10. Central Language Academy
11. Ontario Veterinary Hospital
12. St. George Catholic Church
13. Ontario Park
14. St. George School
15. Ontario Town Square
16. Mule Car
17. Ontario Senior Center
18. Ovitt Family Community Library
Legend
Proposed Recycled Water Pipeline
Segment 1
Segment 2
Segment 4
Segment 5
Conversion of Existing Potable Water Pipeline to RW
Segment 3
!( IEU Connection Point
*# Recycled Water Lateral
Proposed Tree Removal
and Replacement
576
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Figure 2B. Southern Portion Local Vicinity Map
Segment 6: Proposed Recycled Water Pipeline
Connection Point to Existing City RW Pipeline
Existing City 24-inch Recycled Water Pipeline
Segment 6: Conversion of Existing
Irrigation System to RW
Cucamonga Channel
#* Recycled Water Lateral
Surrounding Land Uses
1. Harris Place Apartments
2. Woodcrest Junior High School
3. Liberty Elementary School
4. Heavenly Care Daycare and Preschool
5. Banal Na Pag Aral
*# *# *# !(
E Riverside Drive
E Riverside Drive
Cucam
onga Chan
Cucam
onga Channel
Euclid
A
v
enue Euclid
A
v
enue
Whispering Lakes
Golf Course
Levi H. Dickey
Elementary School
Existing City 24-inch Recycled
Water Main
Cam
pus A
v
enue
B
on Vie
w
A
v
enue
Gro
v
e
Av
enue
Vine
yard
A
v
enue
Baker Av
enue
B
on Vie
w
A
v
enue
Cam
pus A
v
enue
Gro
v
e
Av
enue
Baker Av
enue
Vine
yard
A
v
enue
1 2
3 4
5 6
7 8 9 10
SR-60 SR-60
Centennial Park Riverside Parkway
E Walnut Street
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community Legend #
SR-60
6. Country Meadows Mobile Home Park
7. Sunrise Children Center
8. Dog Park
9. Westwind Community Center
10. Live Oak Preschool
0 0.125 0.25 0.5 0.75 1
Mile ¯
577
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Figure 3A. Northern Portion Land Use Map
*# *#
*#
*#
*#
!(
W Flora Street
W F Street
E Holt Blvd
N
Vine
A
v
enue
S San Antonio
A
v
enue
Euclid
A
v
enue Euclid
A
v
enue
E F Street
W C Street
W D Street
E C Street
E Holt Blvd
W 4th Street E 4th Street
Le
m
on A
v
enue
Existing 30-inch IEUA
Recycled Water Main
N San Antonio
A
v
enue
James R. Bryant
Park
W E B Street B Street
S Sultana A
v
enue
N Sultana A
v
enue
West E Street
W 1 E 1st Street st Street
Civic Center &
Town Square Park
East E Street
Chaffey High
School
E D Street
482
408
403
402
379
365
212
338
337
Railroad
Railroad
N
Vine
A
v
e
W Granada Court E Granada Court
W H Street E H Street
E El Morado Court
W G Street E G Street
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community Ontario Downtown Mixed-use
Zone (MU-1)
0 0.25 0.5
Miles ¯
Legend
Proposed Recycled Water Pipeline
Segment 1
Segment 2
Segment 4
Segment 5
Conversion of Existing Potable Water Pipeline to RW
Segment 3
!( IEU Connection Point
*# Recycled Water Lateral
Proposed Tree Removal
Railroad Track
Land Use
Residential
Mixed Use
Commercial
Industrial
Open Space
Public Facility
Rail
578
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Figure 3B. Southern Portion Land Use Map
Segment 6: Proposed Recycled Water Pipeline
Connection Point to Existing City RW Pipeline
Existing City 24-inch Recycled Water Pipeline
Segment 6: Conversion of Existing
Irrigation System to RW Cucamonga Channel
#* Recycled Water Lateral
*# *# *# !(
E Riverside Drive
E Riverside Drive
Cucam
onga Channel
Cucam
onga Channel
Euclid
A
v
enue Euclid
A
v
enue
Whispering Lakes
Golf Course
Levi H. Dickey
Elementary School
Existing City 24-inch Recycled
Water Main
Cam
pus A
v
enue
B
on Vie
w
A
v
enue
Gro
v
e
Av
enue
Vine
yard
A
v
enue
Baker Av
enue
SR-60 SR-60
Centennial Park
Riverside Parkway
E Walnut Street
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community SR-60
Legend
0 0.1 0.2 0.4 0.6 0.8
Miles
¯
Land Use
Residential
Mixed Use
Commericial
Industrial
Open Space
Public Facility
Rail
579
Figure 4A. Northern Portion Zoning Map
Ontario Downtown Mixed-use
Zone (MU-1)
*# *#
*#
*#
*#
!(
W Flora Street
W F Street
E Holt Blvd
N
Vine
A
v
enue
S San Antonio
A
v
enue
Euclid
A
v
enue Euclid
A
v
enue
E F Street
W C Street
W D Street
E C Street
E Holt Blvd
E 4th Street
W 4th Street
Le
m
on A
v
enue
Existing 30-inch IEUA
Recycled Water Main
N San Antonio
A
v
enue
James R. Bryant
Park
E B Street W B Street
S Sultana A
v
enue
N Sultana A
v
enue
West E Street
W 1st Street E 1st Street
Civic Center &
Town Square Park
East E Street
Chaffey High
School
E D Street
Railroad
Railroad
482
408
403
402
379
365
338
337
212
W Granada Court E Granada Court
W H S E H Street treet
E El Morado Court
W G Street E G Street
N
Vine
A
v
e
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community 0 0.05 0.1 0.2 0.3 0.4
Miles ¯
Proposed Recycled Water Pipeline
Segment 1
Segment 2
Segment 4
Segment 5
Conversion of Existing Potable Water Pipeline to RW
Segment 3
!( IEU Connection Point
*# Recycled Water Lateral
Proposed Tree Removal
City of Ontario Zoning
CC, Community Commercial
CIV, Civic
HDR-45, High Density Residential
IL, Light Industrial
LDR-5, Low Density Residential
MDR-11, Low Medium Density Residential
MDR-18, Medium Density Residential
MU-1, Mixed- Use Downtown
OL, Low Intensity Office
OS-R, Open-Space-Recreation
PUD, Planned Unit Development
RE-4, Residential Estate
Alley Alley
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
580
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Figure 4B. Southern Portion Zoning Map
Existing City 24-inch Recycled
Water Pipeline
Cucamonga Channel
*# *# *# !(
E Riverside Drive E Riverside Drive
Cucam
onga Channel
Cucam
onga Channel
Euclid
A
v
enue Euclid
A
v
enue
Whispering Lakes
Golf Course
Levi H. Dickey
Elementary School
Existing City 24-inch Recycled
Water Main
Cam
pus A
v
enue
B
on Vie
w
A
v
enue
Gro
v
e
Av
enue
Vine
yard
A
v
enue
Baker Av
enue
SR-60 SR-60
Baker Av
enue
Vine
yard
A
v
enue
Centennial Park
Riverside Parkway
E Walnut Street
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community 0 0.1 0.2 0.4 0.6 0.8
Miles ¯
Legend
Proposed Recycled Water Pipeline
Segment 6
Conversion of Existing Potable Water Pipeline to RW
Segment 6
!( IEU Connection Point
*# Recycled Water Lateral
City of Ontario Zoning
CC, Community Commerical
LDR-5, Low Density Residential
MDR-18, Medium Density Residential
MHP, Mobile Home Park
OS-R, Open Space- Recreation
SP, Specific Plan
581
*# *#
*#
*#
*#
!(
W Flora Street
W F Street
E Holt Blvd
N Vine Avenue
S San Antonio Avenue
Euclid Avenue Euclid Avenue
E F Street
W C Street
W D Street E D Street
N Vine Ave
E C Street
E Holt Blvd
E 4th Street
W 4th Street
Lemon Avenue
Existing 30-inch IEUA
Recycled Water Main
N San Antonio Avenue
James R. Bryant
Park
E B Street W B Street
S Sultana Avenue N Sultana Avenue
West E Street
W 1st Street E 1st Street
Civic Center &
Town Square Park
East E Street
1 Chaffey High
School
1, 2
3, 4
5, 6
7, 8
9 10, 11
12 13, 14
15, 16
17 18
19, 20
21, 22
23, 24, 25
26, 27
28, 29
30 W Granada Court E Granada Court
W H Street E H Street
E El Morado Court
Alley Alley
W G Street E G Street
Railroad
Railroad
31 32
33 34
35 403
408
482
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community 0 0.075 0.15 0.3 0.45 0.6
Miles ¯
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Figure 5A. Photo Location Kep Map
") Photo Locations
Photo Direction
212
Proposed Tree Removal
!( IEU Connection Point
*# Recycled Water Lateral
Railroad Track
Conversion of Existing
Potable Water Pipeline to
RW
Segment 3
Segment 6
Proposed Recycled Water
Pipeline
Segment 1
Segment 2
Segment 4
Segment 5
Segment 6
405
402
379
365
338
337
582
*# *# *# !(
E Riverside Drive E Riverside Drive
Cucamonga Channel
Euclid Avenue Euclid Avenue
Whispering Lakes
Golf Course
Levi H. Dickey
Elementary School
Existing City 24-inch Recycled
Water Main
36, 37,
38, 39
Campus Avenue Campus Avenue
40, 41, 42
43, 44,
45, 46
47 48, 49
Grove Avenue Grove Avenue
Vineyard Avenue
Bon View
Avenue Bon View
Avenue
50, 51
Vineyard Avenue
Centennial Park
SR-60 SR-60
Riverside Parkway
Baker Avenue Baker Avenue
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Figure 5B. Photo Location Key Map
Segment 6: Proposed Recycled Water Pipeline
Connection Point to Existing City RW Pipeline
Existing City 24-inch Recycled Water Pipeline
Segment 6: Conversion of Existing Irrigation System to RW Cucamonga Channel ") Photo Locations
#* Recycled Water Lateral Photo Direction
0 0.15 0.3 0.6 0.9 1.2
Miles ¯
E Walnut Street
*# *#
583
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Figure 6A. Site Photos
Photo 1: Looking North from James Bryant
Park towards the park.
Photo 2: Looking Northwest from James
Bryant Park at an existing restroom at the
southern perimeter of the park.
Photo 3: Looking Northwest form James
Bryant Park at the existing tot lot in the
middle of the park.
Photo 4: Looking West from James Bryant
Park at the westernmost tot lot within the
park.
Photo 5: Looking North from Euclid Avenue
and 4th Street.
Photo 6: Looking South from Euclid Avenue
and 4th Street.
Photo 7: Looking East from Euclid Avenue
and C Street.
Photo 8: Looking North from Euclid
Avenue and C Street.
Photo 9: Looking Northwest from Euclid
Avenue and C Street.
Photo 10: Looking East from Euclid Avenue
and D Street.
Photo 11: Looking North from Euclid
Avenue and D Street.
Photo 12: Looking South from Euclid
Avenue and D Street.
584
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Figure 6B. Site Photos
Photo 13: Looking North from Euclid
Avenue and F Street.
Photo 14: Looking South from Euclid
Avenue and F Street.
Photo 15: Looking East from East Holt and
Euclid Avenue.
Photo 16: Looking North from East Holt and
Euclid Avenue.
Photo 17: Looking Southwest from Lemon
Avenue and C Street.
Photo 18: Looking Southwest from San
Antonio Avenue and D Street.
Photo 19: Looking Southeast from Sultana
Avenue and B Street.
Photo 20: Looking Southwest from Sultana
Avenue and B Street.
Photo 21: Looking East from Vine Street
and D Street.
Photo 22: Looking West from Vine Street
and D Street.
Photo 23: Looking East from F Street and
Vine Avenue.
Photo 24: Looking Northwest from F Street
and Vine Avenue.
585
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Figure 6C. Site Photos
Photo 25: Looking South from F Street and
Vine Avenue.
re.
Photo 26: Looking West from Flora Street
ROW.
Photo 27: Looking East from Flora Street
ROW.
Photo 28: Looking South at James Bryant
Park along Flora Street.
re.
Photo 29: Looking West from Flora Street
at existing water meter.
Photo 30: Looking Southeast from Flora
Street at existing water meter.
Photo 31: Euclid Avenue at East Granada Looking South.
586
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Figure 6D. Site Photos
Photo 32: Euclid Avenue Northbound Lanes south of H Street Looking South.
Photo 33: Euclid Avenue Northbound lanes north of El Morado Ct looking South. 587
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Figure 6E. Site Photos
Photo 36: Looking East from Campus
Avenue and Riverside Drive.
re.
Photo 37: Looking Northeast from Campus
Avenue and Riverside Drive.
Photo 34: Euclid Ave Northbound Lanes South of G Street looking South.
Photo 35: Euclid Avenue Northbound Lanes North of E Street Looking South. 588
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Figure 6F. Site Photos
Photo 38: Looking Southeast from Campus
Avenue and Riverside Drive.
Photo 39: Looking West from Campus
Avenue and Riverside Drive.
Photo 40: Looking East towards the
Cucamonga Creek along the northern
perimeter of Riverside Drive.
Photo 41: Looking Northeast towards the
Cucamonga Creek along the southern
perimeter of Riverside Drive.
Photo 42: Looking South towards the
Cucamonga Creek along the southern
perimeter of Riverside Drive.
Photo 43: Looking East from Euclid Avenue
and Riverside Drive.
Photo 44: Looking North from Euclid Avenue
and Riverside Drive.
Photo 45: Looking South from Euclid Avenue
and Riverside Drive.
Photo 46: Looking West from Euclid Avenue
and Riverside Drive.
Photo 47: Looking East from Grove Avenue
and Riverside Drive.
Photo 48: Looking East from Vineyard
Avenue and Riverside Drive.
Photo 49: Looking West from Vineyard
Avenue and Riverside Drive.
589
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Figure 6G. Site Photos
Photo 50: Looking East from Bon View and
Riverside Drive.
Photo 51: Looking West from Bon View
and Riverside Drive.
590
Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), (c) OpenStreetMap contributors, and the GIS User Community
Figure 7. Recycled Water Distribution Project Phases and Components Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Riverside Dr. Alignment
Legend
Euclid Ave. Alignment- Phase I &IIA
Euclid Ave. Alignment- Phase IIB
Booster Pump Station Alternatives- Phase IIC
BPS Alternative 3
Jurupa Street Alignment
BPS Alternative 2A & 2B
BPS Alternative 1
Euclid Ave. Alignment- Phase IIIA & IIIB
^ IEUA Connection
^
D St.
Mission Blvd. Mission Blvd.
Francis St. Francis St.
Philidephia St. Philidephia St.
Walnut St.
San Antonio Ave,
Cypress Ave.
Bon View
Ave.
Campus Ave. Campus Ave.
Cypress Ave.
Archibald Ave.
Haven Ave. Haven Ave.
Riverside Dr. Riverside Dr.
Jurupa St.
Archibald Ave.
Deer Crk Lp
Mill Crk Rd
L .ttle Crk Lp
Turner Ave.
F St.
Flora St.
Euclid Ave Euclid Ave
Previously Proposed Recycled Water Distribution:
Proposed Recycled Water Pipeline
UT1072
C St.
E St.
591
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 52 INITIAL STUDY
EVALUATION OF ENVIRONMENTAL IMPACTS:
1) A brief explana0on is required for all answers except "No Impact" answers that are adequately supported by the informa0on sources a Lead Agency cites in the parentheses following each ques0on.
A "No Impact" answer is adequately supported if the referenced informa0on sources show that the impact simply does not apply to projects like the one involved (e.g. the project falls outside a fault rupture zone). A "No Impact" answer should be explained where it is based on project-specific factors as well as general standards (e.g. the project will not expose sensi0ve receptors to pollutants, based on a project-specific screening analysis).
2) All answers must take account of the whole ac0on involved, including off-site as well as on-site, cumula0ve as well as project-level, indirect as well as direct, and construc0on as well as opera0onal impacts.
3) Once the Lead Agency has determined that a par0cular physical impact may occur, then the checklist answers must indicate whether the impact is poten0ally significant, less than significant with mi0ga0on, or less than significant. "Poten0ally Significant Impact" is appropriate if there is substan0al evidence that an effect is significant. If there are one or more "Poten0ally Significant Impact" entries when the determina0on is made, an EIR is required.
4) Less Than Significant with Mi0ga0on Incorporated" applies where the incorpora0on of mi0ga0on measures has reduced an effect from "Poten0ally Significant Impact" to a "Less than Significant Impact." The Lead Agency must describe the mi0ga0on measures, and briefly explain how they reduce the effect to a less than significant level (mi0ga0on measures from "Earlier Analyses" may be crossreferenced). 5) Earlier analyses may be used where, pursuant to the 0ering, program EIR, or another CEQA process, an effect has been adequately analyzed in an earlier EIR or nega0ve declara0on. Sec0on 15063(c)(3)(D). In this case, a brief discussion should iden0fy the following:
a) Earlier Analyses Used. Iden0fy and state where they are available for review. b) Impacts Adequately Addressed. Iden0fy which effects from the above checklist were within the scope of and adequately analyzed in an earlier document pursuant to applicable legal standards, and state whether such effects were addressed by mi0ga0on measures based on the earlier analysis. c) Mi0ga0on Measures. For effects that are "Less than Significant with Mi0ga0on Measures Incorporated," describe the mi0ga0on measures which were incorporated or refined from the earlier document and the extent to which they address site-specific condi0ons for the project. 6) Lead agencies are encouraged to incorporate into the checklist references to informa0on sources for poten0al impacts (e.g. general plans, zoning ordinances). Reference to a previously prepared or outside document should, where appropriate, include a reference to the page or pages where the statement is substan0ated.
7) Suppor0ng Informa0on Sources. A source list should be a@ached, and other sources used, or individuals contacted should be cited in the discussion. 8) This is only a suggested form, and lead agencies are free to use different formats; however, lead agencies should normally address the ques0ons from this checklist that are relevant to a project's environmental effects in whatever format is selected.
9) The explana0on of each issue should iden0fy:
a) the significance criteria or threshold, if any, used to evaluate each ques0on; and b) the mi0ga0on measure iden0fied, if any, to reduce the impact to less than significance. 592
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 53 ENVIRONMENTAL CHECKLIST – FORM F
Issues
Poten6ally
Significant
Impact
Less than
Significant
Impact with
Mi6ga6on
Incorporated
Less than
Significant
Impact No Impact
I. AESTHETICS. Except as provided in Public Resources Code Sec6on 21099, would the Project:
a) Have a substan6al adverse effect on a scenic
vista?
b) Substan6ally damage scenic resources,
including, but not limited to, trees, rock
outcroppings, and historic buildings within a
state scenic highway?
c) In nonurbanized areas, substan6ally degrade the
exis6ng visual character or quality of public
views of the site and its surroundings? (Public
views are those that are experienced from
publicly accessible vantage point). If the Project
is in an urbanized area, would the Project
conflict with applicable zoning and other
regula6ons governing scenic quality?
d) Create a new source of substan6al light or glare
which would adversely affect day or nighTme
views in the area?
II. AGRICULTURE AND FORESTRY RESOURCES. In determining whether impacts to agricultural resources are significant environmental effects, lead agencies may refer to the California Agricultural Land Evalua6on and Site Assessment Model (1997) prepared by the California Dept. of Conserva6on as an op6onal model to use in assessing impacts on agriculture and farmland.
In determining whether impacts to forest resources, including 6mberland, are significant environmental effects, lead agencies may refer to informa6on compiled by the California Department of Forestry and Fire Protec6on regarding the state’s inventory of forest land, including the Forest and Range Assessment Project and the Forest Legacy Assessment Project; and forest carbon measurement methodology provided in Forest Protocols adopted by the California Air Resources Board. Would the Project:
a) Convert Prime Farmland, Unique Farmland, or
Farmland of Statewide Importance (Farmland),
as shown on the maps prepared pursuant to the
Farmland Mapping and Monitoring Program of
the California Resources Agency, to nonagricultural use? b) Conflict with exis6ng zoning for agricultural use,
or a Williamson Act contract?
c) Conflict with exis6ng zoning for, or cause
rezoning of, forest land (as defined in Public
Resources Code Sec6on 12220(g)), 6mberland
(as defined by Public Resources Code
Sec6on 4526), or 6mberland zoned Timberland
Produc6on (as defined by Government Code
Sec6on 51104(g))?
d) Result in the loss of forest land or conversion of
forest land to non-forest use?
e) Involve other changes in the exis6ng
environment which, due to their loca6on or
nature, could result in conversion of Farmland,
to non-agricultural use or conversion of forest
land to non-forest use?
f) Convert Prime Farmland, Unique Farmland, or
Farmland of Statewide Importance (Farmland),
as shown on the maps prepared pursuant to the
Farmland Mapping and Monitoring Program of
the California Resources Agency, to nonagricultural use? 593
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 54 Issues
Poten6ally
Significant
Impact
Less than
Significant
Impact with
Mi6ga6on
Incorporated
Less than
Significant
Impact No Impact
III. AIR QUALITY. Where available, the significance criteria established by the applicable air quality management district or air pollu6on control district may be relied upon to make the following determina6ons. Would the Project:
a) Conflict with or obstruct implementa6on of the
applicable air quality plan?
b) Result in a cumula6vely considerable net
increase of any criteria pollutant for which the
Project region is non-aYainment under an
applicable federal or state ambient air quality
standard?
c) Expose sensi6ve receptors to substan6al
pollutant concentra6ons?
d) Result in other emissions (such as those leading
to odors) adversely affec6ng a substan6al
number of people?
IV. BIOLOGICAL RESOURCES – Would the project:
a) Have a substan6al adverse effect, either directly
or through habitat modifica6ons, on any species
iden6fied as a candidate, sensi6ve, or special
status species in local or regional plans, policies,
or regula6ons, or by the California Department
of Fish and Game or U.S. Fish and Wildlife
Service?
b) Have a substan6al adverse effect on any riparian
habitat or other sensi6ve natural community
iden6fied in local or regional plans, policies,
regula6ons or by the California Department of
Fish and Game or U.S. Fish and Wildlife Service?
c) Have a substan6al adverse effect on state or
federally protected wetlands (including, but not
limited to, marsh, vernal pool, coastal, etc.)
through direct removal, filling, hydrological
interrup6on, or other means?
d) Interfere substan6ally with the movement of
any na6ve resident or migratory fish or wildlife
species or with established na6ve resident or
migratory wildlife corridors, or impede the use
of na6ve wildlife nursery sites?
e) Conflict with any local policies or ordinances
protec6ng biological resources, such as a tree
preserva6on policy or ordinance?
f) Conflict with the provisions of an adopted
Habitat Conserva6on Plan, Natural Community
Conserva6on Plan, or other approved local,
regional, or state habitat conserva6on plan
g) Have a substan6al adverse effect, either directly
or through habitat modifica6ons, on any species
iden6fied as a candidate, sensi6ve, or special
status species in local or regional plans, policies,
or regula6ons, or by the California Department
of Fish and Game or U.S. Fish and Wildlife
Service?
V. CULTURAL RESOURCES. Would the Project:
a) Cause a substan6al adverse change in the
significance of a historical resource pursuant to
§ 15064.5?
594
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 55 Issues
Poten6ally
Significant
Impact
Less than
Significant
Impact with
Mi6ga6on
Incorporated
Less than
Significant
Impact No Impact
b) Cause a substan6al adverse change in the
significance of an archaeological resource
pursuant to § 15064.5?
c) Disturb any human remains, including those
interred outside of dedicated cemeteries?
VI. ENERGY. Would the Project:
a) Result in poten6ally significant environmental
impact due to wasteful, inefficient, or
unnecessary consump6on of energy resources,
during Project construc6on or opera6on?
b) Conflict with or obstruct a state or local plan for
renewable energy or energy efficiency?
VII. GEOLOGY AND SOILS. Would the Project:
a) Directly or indirectly cause poten6al substan6al
adverse effects, including the risk of loss, injury, or death involving:
i) Rupture of a known earthquake fault, as delineated
on the most recent Alquist-Priolo Earthquake Fault
Zoning Map, issued by the State Geologist for the area
or based on other substan6al evidence of a known
fault? Refer to Division of Mines and Geology Special
Publica6on 42.
ii) Strong seismic ground shaking?
iii) Seismic-related ground failure, including
liquefac6on?
iv) Landslides?
b) Result in substan6al soil erosion or the loss of
topsoil?
c) Be located on a geologic unit or soil that is unstable, or that would become unstable as a result of the
Project, and poten6ally result in on- or off-site
landslide, lateral spreading, subsidence, liquefac6on
or collapse?
d) Be located on expansive soil, as defined in Table 18- 1-B of the Uniform Building Code (1994), crea6ng
substan6al direct or indirect risks to life or property? e) Have soils incapable of adequately suppor6ng the
use of sep6c tanks or alterna6ve wastewater disposal
systems where sewers are not available for the
disposal of wastewater?
f) Directly or indirectly destroy a unique
paleontological resource or site or unique geologic
feature?
VIII. GREENHOUSE GAS EMISSIONS. Would the Project:
a) Generate greenhouse gas emissions, either
directly or indirectly, that may have a significant
impact on the environment?
b) Conflict with an applicable plan, policy or
regula6on adopted for the purpose of reducing
the emissions of greenhouse gases?
IX. HAZARDS AND HAZARDOUS MATERIALS. Would the Project:
a) Create a significant hazard to the public or the
environment through the rou6ne transport, use, or
disposal of hazardous materials?
595
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 56 Issues
Poten6ally
Significant
Impact
Less than
Significant
Impact with
Mi6ga6on
Incorporated
Less than
Significant
Impact No Impact
b) Create a significant hazard to the public or the
environment through reasonably foreseeable upset
and accident condi6ons involving the release of
hazardous materials into the environment?
c) Emit hazardous emissions or handle hazardous or
acutely hazardous materials, substances, or waste
within one-quarter mile of an exis6ng or proposed
school?
d) Be located on a site which is included on a list of
hazardous materials sites compiled pursuant to
Government Code § 65962.5 and, as a result, would
it create a significant hazard to the public or the
environment?
e) For a Project located within an airport land use plan or, where such a plan has not been adopted, within
two miles of a public airport or public use airport,
would the Project result in a safety hazard or
excessive noise for people residing or working in the
Project area?
f) Impair implementa6on of or physically interfere
with an adopted emergency response plan or
emergency evacua6on plan?
g) Expose people or structures, either directly or
indirectly, to a significant risk of loss, injury or death involving wildland fires?
X. HYDROLOGY AND WATER QUALITY. Would the Project:
a) Violate any water quality standards or waste
discharge requirements or otherwise substan6ally
degrade surface or ground water quality?
b) Substan6ally decrease groundwater supplies or
interfere substan6ally with groundwater recharge
such that the Project may impede sustainable
groundwater management of the basin?
c) Substan6ally alter the exis6ng drainage paYern of
the site or area, including through the altera6on of
the course of a stream or river or through the addi6on
of impervious surfaces, in a manner which would:
i. result in a substan6al erosion or silta6on on- or offsite; ii. substan6ally increase the rate or amount of surface runoff in a manner which would result in flooding onor offsite; iii. create or contribute runoff water which would
exceed the capacity of exis6ng or planned
stormwater drainage systems or provide substan6al
addi6onal sources of polluted runoff; or
iv. impede or redirect flood flows?
d) In flood hazard, tsunami, or seiche zones, risk
release of pollutants due to Project inunda6on?
e) Conflict with or obstruct implementa6on of a water
quality control plan or sustainable groundwater
management plan?
XI. LAND USE AND PLANNING. Would the Project:
a) Physically divide an established community?
596
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 57 Issues
Poten6ally
Significant
Impact
Less than
Significant
Impact with
Mi6ga6on
Incorporated
Less than
Significant
Impact No Impact
b) Cause a significant environmental impact due to
a conflict with any land use plan, policy, or
regula6on adopted for the purpose of avoiding
or mi6ga6ng an environmental effect?
XII. MINERAL RESOURCES. Would the Project:
a) Result in the loss of availability of a known
mineral resource that would be a value to the
region and the residents of the state?
b) Result in the loss of availability of a locally
important mineral resource recovery site
delineated on a local general plan, specific plan
or other land use plan?
XIII. NOISE. Would the Project result in:
a) Genera6on of a substan6al temporary or
permanent increase in ambient noise levels in
the vicinity of the Project in excess of standards
established in the local general plan or noise
ordinance, or applicable standards of other
agencies?
b) Genera6on of excessive groundborne vibra6on
or groundborne noise levels?
c) For a Project located within the vicinity of a
private airstrip or an airport land use plan or,
where such a plan has not been adopted, within
two miles of a public airport or public use
airport, would the Project expose people
residing or working in the Project area to
excessive noise levels?
XIV. POPULATION AND HOUSING. Would the Project:
a) Induce substan6al unplanned popula6on growth
in an area, either directly (for example, by
proposing new homes and businesses) or
indirectly (for example, through extension of
roads or other infrastructure)?
b) Displace substan6al numbers of exis6ng people
or housing, necessita6ng the construc6on of
replacement housing elsewhere?
XV. PUBLIC SERVICES. Would the Project:
a) Result in substan6al adverse physical impacts
associated with the provision of new or physically
altered governmental facili6es, need for new or
physically altered governmental facili6es, the
construc6on of which could cause significant
environmental impacts, in order to maintain
acceptable service ra6os, response 6mes, or other
performance objec6ves for any of the public services:
i) Fire Protec6on?
ii) Police Protec6on?
iii) Schools?
iv) Parks?
v) Other public facili6es?
XVI. RECREATION.
a) Would the Project increase the use of exis6ng
neighborhood and regional parks or other
597
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 58 Issues
Poten6ally
Significant
Impact
Less than
Significant
Impact with
Mi6ga6on
Incorporated
Less than
Significant
Impact No Impact
recrea6onal facili6es such that substan6al
physical deteriora6on of the facility would occur
or be accelerated?
b) Does the Project include recrea6onal facili6es or
require the construc6on or expansion of
recrea6onal facili6es which might have an
adverse physical effect on the environment?
XVII. TRANSPORTATION. Would the Project:
a) Conflict with a program, plan, ordinance or
policy addressing the circula6on system,
including transit, roadway, bicycle and
pedestrian facili6es?
b) Conflict or be inconsistent with CEQA Guidelines
§ 15064.3, subdivision (b)?
c) Substan6ally increase hazards due to a
geometric design feature (e.g., sharp curves or
dangerous intersec6ons) or incompa6ble uses
(e.g., farm equipment)?
d) Result in inadequate emergency access?
XVIII. TRIBAL CULTURAL RESOURCES.
a) Would the Project cause a substan6al adverse
change in the significance of a tribal cultural
resource, defined in Public Resources Code §
21074 as either a site, feature, place, cultural
landscape that is geographically defined in terms
of the size and scope of the landscape, sacred
place, or object with cultural value to a California
Na6ve American tribe, and that is:
i. Listed or eligible for lis6ng in the California Register of Historical Resources, or in a local register of
historical resources as defined in Public Resources
Code sec6on 5020.1(k), or
ii. A resource determined by the lead agency, in its
discre6on and supported by substan6al evidence, to
be significant pursuant to criteria set forth in
subdivision (c) of Public Resources Code § 5024.1. In
applying the criteria set forth in subdivision (c) of
Public Resource Code § 5024.1, the lead agency shall
consider the significance of the resource to a
California Na6ve American tribe.
XIX. UTILITIES AND SERVICE SYSTEMS. Would the Project:
a) Require or result in the reloca6on or
construc6on of new or expanded water,
wastewater treatment or storm water drainage,
electric power, natural gas, or
telecommunica6ons facili6es, the construc6on
or reloca6on of which could cause significant
environmental effects?
b) Have sufficient water supplies available to serve
the Project and reasonably foreseeable future
development during normal, dry and mul6ple
dry years?
c) Result in a determina6on by the wastewater
treatment provider, which serves or may serve
the Project that it has adequate capacity to serve
598
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 59 Issues
Poten6ally
Significant
Impact
Less than
Significant
Impact with
Mi6ga6on
Incorporated
Less than
Significant
Impact No Impact
the Project’s Projected demand in addi6on to
the provider’s exis6ng commitments?
d) Generate solid waste in excess of state or local
standards, or in excess of the capacity of local
infrastructure, or otherwise impair the
aYainment of solid waste reduc6on goals?
e) Comply with federal, state, and local
management and reduc6on statutes and
regula6ons related to solid waste?
XX. WILDFIRE. If located in or near state responsibility areas or lands classified as very high fire hazard severity zones, would the Project:
a) Substan6ally impair an adopted emergency
response plan or emergency evacua6on plan?
b) Due to slope, prevailing winds, and other factors,
exacerbate wildfire risks, and thereby expose
Project occupants to pollutant concentra6ons
from a wildfire or the uncontrolled spread of a
wildfire?
c) Require the installa6on or maintenance of
associated infrastructure (such as roads, fuel
breaks, emergency water sources, power lines
or other u6li6es) that may exacerbate fire risk or
that may result in temporary or ongoing impacts
to the environment?
d) Expose people or structures to significant risks,
including downslope or downstream flooding or
landslides, as a result of runoff, post-fire slope
instability, or drainage changes?
XXI. MANDATORY FINDINGS OF SIGNIFICANCE. Would the Project:
a) Does the Project have the poten6al to substan6ally
degrade the quality of the environment, substan6ally
reduce the habitat of a fish or wildlife species, cause a fish or wildlife popula6on to drop below selfsustaining levels, threaten to eliminate a plant or animal community, substan6ally reduce the number
or restrict the range of a rare or endangered plant or
animal or eliminate important examples of the major
periods of California history or prehistory?
b) Does the Project have impacts that are individually
limited, but cumula6vely considerable?
(“Cumula6vely considerable” means that the
incremental effects of a Project are considerable
when viewed in connec6on with the effects of past
Projects, the effects of other current Projects, and the effects of probable future Projects.)
c) Does the Project have environmental effects which
will cause substan6al adverse effects on human
beings, either directly or indirectly?
599
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 67 curbs and sidewalks, Project plans indicate that construcon setbacks will avoid most direct impacts and could result in potenally significant indirect impacts from ground vibraon due to construcon acvies and use of heavy equipment near older structures. Indirect impacts such as se"ling and cracking of aesthecally important historical structures and CDF for the Euclid Avenue Historic Property is a potenally significant indirect impact.
Therefore, the City’s qualified archaeologist will mark buffer areas for CDF in the field prior to the start of construcon and will monitor these areas during construcon to protect CDF structures and features; marked buffers will facilitate qualified archaeological monitoring/reporng according to migaon measures MM AES01 through AES-06. MM CUL-01, and MM CUL-02. The City’s qualified archaeologist monitoring is required for any Project-related work within 25 feet of any structural CDF for Euclid Avenue Historic Property throughout mobilizaon and construcon. Enforcement of these boundaries will reduce significant impacts to less than significant levels. This monitoring will include documentaon and reporng on levels of significant indirect impacts to aesthecally important CDF and historical resources so that construcon may be temporarily redirected, and restoraon may be implemented a2er construcon. This will reduce potenally significant aesthec impacts to less than significant levels and maintain the historical integrity of the APE and Euclid Avenue.
Temporary staging, excavaon, and pipeline construcon that will also occur in paved and modern porons of City ROW, mainly within Segment 6, will not result in potenally significant impacts with the implementaon of the City’s Standard Specificaons for Capital Improvement Projects and migaon measures for the Project; plans for the Project show that these areas will be restored to pre-project condions or be"er following pipeline construcon pursuant to Ontario Engineering Standards. For the reasons above, less than significant aesthec impacts will result from Project impacts.
Project laterals and connecons to exisng irrigaon systems, as well as proposed maintenance to the exisng irrigaon systems, within the median of Euclid Avenue in Segment 1 require disturbance and shallow earthwork to accommodate 4-inch pipes and connecons; lateral installaons will require removal of up to 10 square feet of exisng surfaces (affecng median turf, curb and gu"er) within Ontario’s historical and revitalizaon districts, Euclid Avenue Historic Property, and in the modern porons of the ROW as shown on Project plans. Levels of temporary impacts from the construcon of laterals and irrigaon system maintenance, where construcon is within 25 feet of any historically sensive areas, will be monitored throughout construcon by the City’s Archaeologist pursuant to MM CUL-01 and MM CUL-02. Likewise, levels of temporary impacts on trees and historically significant CDF, such as Armstrong Rose beds, during construcon will be concurrently monitored by the City’s Archaeologist and the City’s Cerfied Arborist, who will have the authority to halt and temporarily redirect work if damage occurs. All areas that are temporarily disturbed during construcon will be restored to pre project condions a2er construcon is complete according to Ontario Municipal Code requirements and migaon measures for the Project. Implementaon of MM CUL-06 will require historical restoraon of any damage from construcon to historically significant structures according to applicable SOIS and City standards; therefore, direct impacts from construcon of laterals and irrigaon system maintenance are less than significant with migaon.
Plans for the Project show proposed laterals constructed within the median with sufficient setbacks from the Bandstand, Mule Car and other structural CDF in the Segment 1 median as indicated in Table 6: Project Components (APE). Therefore, construcon of laterals on the east side of the Euclid Avenue median and connecons to the main in northbound Euclid Avenue will not result in significant direct impacts. Laterals are not proposed in areas where historical masonry is currently found along the boundaries of the median; therefore, construcon of median laterals for the Project will not result in direct CDF impacts on historical masonry either in Segment 1 (Euclid Avenue ROW) or where modern curb, gu"er, and sidewalk are located in Segment 6 (E. Riverside Drive ROW). The closest Project lateral to any CDF structure is adjacent to the east of the Band Stand (Segment 1) and construcon of this lateral will be monitored by the qualified archaeologist according to migaon measures for the Project.
600
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 68 Plans indicate Project construcon is set back to avoid direct impacts on historically significant features and is sll close enough to sensive resources to require implementaon of migaon measures for establishing and monitoring construcon buffers/and barriers so that construcon vibraon from tree maintenance, earthwork and use of heavy equipment will not damage sensive resources. These areas will be restored to pre-project condions if they are inadvertently damaged during construcon. Any laterals installed in the Euclid Avenue median or ROW (Segment 1) north of E. G Street would require arborist and archaeologist monitoring to reduce potenally significant indirect impacts to less than significant levels.
Plans for the Project show recommended tree maintenance within the APE based on exisng tree condions within Segments 1 and 2. Tree tag numbers and exisng condions are listed in Table 7: Tree Maintenance Recommenda(ons. Locaons of tree maintenance are depicted in Table 6: Project Components (APE), Figure 2A: Northern Por(on of the Local Vicinity Map, Figure 5A: Photo Loca(on Key Map, and Figure 6: Site Photos.
Each tree removal will require an approximate 20 square-foot area of disturbance. Not more than three trees within a city block will be removed and replaced for maintenance. A total of ten (10) Heritage Trees are recommended for consideraon of immediate removal with the Project; these are in the north part of the Project (Segments 1 and 2). Within the Euclid Avenue ROW and HPTMP, between E. Holt Boulevard and Granada Court, eight (8) trees that are adjacent to the northbound lanes of Euclid Avenue (along the eastern boundary of the median); one (1) parkway tree east of the northbound lanes of Euclid Avenue (south of E. Granada Court) are recommended by the arborist for removal. One (1) immediate tree removal/replacement is proposed on W.
Flora Street near the northwest corner of James R. Bryant Park within Segment 2. Heritage Tree maintenance proposed north of E. G Street (see Figures 2A and 5A) are adjacent to masonry curb and gu"er and will require archaeological monitoring in addion to arborist monitoring because these areas are defined as CDF for the Euclid Avenue Historic Property. Migaon measures also prescribe careful removal of these features prior to construcon, storage during construcon, and replacement by a qualified contractor a2er construcon to reduce potenally significant impacts from damage to less than significant levels. Due to proximity with historical masonry and the sizes of these trees, it is recommended that the City hire a qualified arborist and archaeologist to monitor Project construcon along Euclid Avenue north of G Street so that impacts to CDF are minimized; a contractor specializing in historical masonry restoraon would be also hired by the City to restore CDF pursuant to the HPTMP if damage occurs during Project construcon. Migaon Measures requiring qualified archaeological and arborist monitoring for tree work and construcon will be required within proximity (25 feet of CDF) and within the PRZ/TPZ to reduce indirect impacts to less than significant levels. The archaeologist monitor should determine if CDF structures should be removed prior to construcon, safely stored, and replaced a2er construcon. Should damage to any CDF occur, the City shall provide a qualified contractor who specializes in historical masonry to repair/replace damaged CDF pursuant to migaon measures MM CUL-05 and CUL-06.
A Landscape Replacement Plan has been prepared for the Project by KTUA Landscape Architects showing in-kind tree replacements in 60-inch box containers. Proposed tree replacements within the Euclid Avenue ROW (median and parkway) are at a rao of 1:1 to retain the original layout of the Euclid Avenue ROW pursuant to HPTMP guidelines (outlined in Secon 1.1 Regulatory Guidelines for the HPTMP). The Project will implement migaon and monitoring pursuant to MM AES-01 through MM AES-06 and CUL-05 and CUL-06 by a qualified arborist and archaeologist. Monitoring for tree removals, replacements, and three-year post construcon monitoring of trees that have been trimmed or replaced with the Project is required pursuant to the MMRP.
Ontario’s tree ordinance requires full migaon for the Project in the form of tree replacement to be equal to the size of removed trees measured by the circumference of the tree trunks and equaling 339.5 inches.
Implementaon of Ontario’s Heritage Tree Replacement (Ontario Dev. Code 6.05.020 J) will require addional tree planng and proper irrigaon instrucons shown on the final Landscape Replacement Plan for the Project pursuant to migaon measure MM AES-01 through MM AES-06 and CUL-01 through CUL-06.
Implementaon of the migaon measures for the Project will protect CDF within the APE and Local Vicinity and will reduce significant impacts on aesthec resources to less than significant levels. 601
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 69 a) Have a substan
al adverse effect on a scenic vista?
DISCUSSION OF EFFECTS:
Less than Significant with Mi%ga%on Incorporated. The Project will provide sustainable landscape irrigaon for public open space, Euclid Avenue Historic Property, Civic Center Area, and parks in perpetuity; it is intended to permanently support community views that are designated as scenic vistas in the Ontario Plan.
Plans for the Project have been designed to avoid the most significant impacts on aesthec resources. Project construcon without migaon measures has the potenal to result in direct and indirect damage to aesthec resources. Damage to these resources is a potenally significant impact. To prevent damage from staging, excavaon, equipment use, and tree removals during construcon, the Project will implement migaon measures MM AES-01 through MM AES-06 and MM CUL-01 through MM CUL-06; migaon measures for the Project will reduce impacts by protecng historical resources and trees in place with buffers and monitoring. If damage should inadvertently occur, restoraon is required pursuant to these migaon measures. Therefore, impacts on visual resources that contribute to a scenic vista during construcon will be less than significant with migaon. In areas with resources that are not defined as sensive historical resources, CDF, and Heritage Trees, the Project will result in less than significant temporary impacts, because these areas, although disturbed during Project construcon, will be restored to pre-project condions a2er construcon is complete according to plans for the Project, the MMRP, and the standard applicaon of Ontario’s Municipal Code.
Proposed tree maintenance , removal of ten trees) that will be implemented as maintenance with the Project, will require replacement trees. Project plans indicate these replacements will be large and mature, in 60-inch boxed containers. Plans for the Project indicate tree replacement species have been selected due to their consistency with the original plan for Euclid Avenue, suitability to the Project seLng, and specific locaons of replacement within parkways to avoid long-term conflict with ulies and improvements. The HPTMP allows tree replacements for maintenance of the Euclid Avenue Historic Property if approved by the City of Ontario’s Planning Director or authorized representave. The final tree replacement plan for the Project will be evaluated and approved by the City for species suitability and compliance with the Euclid Avenue HPTMP, per migaon measure MM AES-05: Tree and Landscaping Replacement Plan. Tree replacements will be implemented according to available space and to avoid conflicts with exisng improvements and ulies. In addion, Ontario’s Municipal Code allows Heritage Tree replacements that are consistent with exisng condions according to the measured size of the trunk of the trees removed, and as approved by the Planning Director, to closely replicate exisng tree canopy. The City will implement monitoring by a qualified arborist and archaeologist within proximity to CDF during construcon. If damaged during construcon, CDF will be restored according to SOIS standards by the City’s qualified contractor as outlined in the MMRP. Three-year post construcon monitoring will also be required to document long-term tree health.
For the reasons above, Project impacts are less than significant with migaon on a scenic vista.
MITIGATION:
MM AES-01: Cerfied Arborist.
MM AES-02: Tree Protecon During Construcon.
MM AES-03: Tunneling.
MM AES-04: Hydro Excavaon.
MM AES-05: Tree and Landscaping Replacement Plan.
MM AES-06: Protecon in Place and Construcon Monitoring for CDF and Historic Structures. 602
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 70 MM CUL-01: Archeological Monitoring.
MM CUL-02: Vibraon Monitoring.
MM CUL-03: Worker Environmental Awareness Training.
MM CUL-05: Protecon and Restoraon of Masonry and Structures.MM CUL-06: Historical Restoraon. b) Substan
ally damage scenic resources, including, but not limited to, trees, rock outcroppings, and historic buildings within a state scenic highway?
DISCUSSION OF EFFECTS:
Less than Significant with Migaon Incorporated. The Project is not located near a state scenic highway. There are no rock outcroppings near the Project. The Project does not propose substanal direct permanent changes to historic buildings or structures. Monitoring for indirect impacts is required by the MMRP and significant impacts from Project construcon will be repaired pursuant to Ontario’s Municipal Code, SOIS requirements outlined in the HPTMP, and MMRP for the Project. The Project will install underground improvements within the City ROW and will replace hardscape and landscaping that must be temporarily removed for construcon.
Trees, hardscape and street surfaces will be reestablished to pre-project condions and according to Ontario’s Municipal Code upon compleon of construcon. The Project will implement Ontario’s Tree Ordinance and the Historic Resources Ordinance, including the HPTMP for the Euclid Avenue Historic Property. The Project will implement migaon measures MM AES-01 through MM AES-06, MM CUL-01 through MM CUL-06 to minimize damage to trees and other CDF within the Euclid Avenue ROW, Euclid Avenue Historic Property, and the established and planned historic districts. Therefore, Project impacts on scenic resources including the Euclid Avenue Historic District, will be reduced to less than significant levels.
MITIGATION:
MM AES-01: Cerfied Arborist.
MM AES-02: Tree Protecon During Construcon.
MM AES-03: Tunneling.
MM AES-04: Hydro Excavaon.
MM AES-05: Tree and Landscaping Replacement Plan.
MM AES-06: Protecon in Place and Construcon Monitoring for CDF and Historic Structures.
MM AES-07: Permanent Above-grade Equipment
MM CUL-01: Archeological Monitoring.
MM CUL-02: Vibraon Monitoring.
MM CUL-03: Worker Environmental Awareness Training.
MM CUL-05: Protecon and Restoraon of Masonry and Structures.
MM CUL-06: Historic Restoraon.
c) In nonurbanized areas, substan
ally degrade the exis
ng visual character or quality of public views of the
site and its surroundings? (Public views are those that are experienced from publicly accessible vantage point). If the Project is in an urbanized area, would the Project conflict with applicable zoning and other regula
ons governing scenic quality?
DISCUSSION OF EFFECTS:
Less than Significant Impact. See Secon 1.3, Discussion of Effects a) through b). The Project is proposed within an area that is currently urbanized and has been urbanized for decades; Euclid Avenue ROW, which comprises most of the APE for the Project, has served as an important regional gateway and transportaon route for approximately 143 years, since 1882. Urbanizaon of adjacent areas occurred concurrently with the establishment of Euclid Avenue and have undergone numerous modificaons, infrastructure improvements and maintenance involving aesthec resources that contribute to the visual character and public views regulated by 603
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 71 the Ontario Municipal Code. Therefore, the APE and Local Vicinity include many resources that have been modified and remain important to visual character and quality public views within Ontario.
The Project is being implemented to sustainably maintain public parks and open space associated with visual character and quality of public views. The Project is designed to avoid the most significant impacts on features that comprise visual character and quality of public views in the Local Vicinity. Project construcon in the northern poron of the Project has the potenal to conflict with code requirements that are established for revitalizaon and the preservaon of historical resources, landscaping, and Heritage Trees. The Project will implement migaon measures to protect aesthec resources in place and reduce potenally significant impacts to less than significant levels so that the important historic resources and mature landscaping found within the APE and surrounding areas are safeguarded and retained.
The southern poron, the Project is adjacent to the north of land that is currently in agricultural use and is zoned for future development. The Project will extend the Ontario recycled water system with infrastructure improvements below ground surface in a manner that is consistent with Ontario’s General Plan objecves and approved plans for expanded use of recycled water for irrigaon of public open space. Therefore, the Project will not conflict with planned future development and will not result in conflicts with Ontario’s regulaons.
There will be no potenally significant impacts in this regard.
The Project proposes infrastructure improvements designed to avoid the most significant impacts to scenic quality and public views; it will be constructed at a rate of approximately 60 to 80 linear feet of pipeline daily and exisng surfaces will be returned to pre-Project condions once construcon is complete. During construcon, the Project will implement migaon measures that are recommended to protect resources that comprise scenic quality and public views of the APE and surrounding areas. If any resources are damaged during construcon inadvertently, restoraon is required pursuant to standards established in the Ontario Municipal Code. Permanent improvements will be either at ground level or below ground surface and will not be highly visible from publicly accessible vantage points.
The Project will replace 10 Heritage Trees that are currently in poor health in a manner that is consistent with Ontario’s Municipal Code and will replant new trees in conformance with Ontario’s Heritage Tree Ordinance and the HPTMP for the Euclid Avenue Historic Property. Replanted trees will blend with exisng condions shown in Figure 6: Site Photos. Project plans indicate that replacement trees will replicate the trunk diameter and canopy of exisng trees closely as possible. Replacement tree species that are visually consistent with exisng condions and considered fast-growing (up to 3-feet per year) are shown on the landscape replacement plan for the Project. Replacement trees will be planted within the ROW for Euclid Avenue in a manner that is consistent with the exisng landscape plan layout as shown and described in the HPTMP; therefore, significantly modified public views will not result from construcon. The Project will achieve goals and policies of the GP for sustainable use of recycled water for irrigaon, construcon of recycled water infrastructure, and proper maintenance of the Euclid Avenue Historic Property and other parks and open space maintained by Ontario. The Project will implement requirements of Ontario’s Municipal Code related to conversion of landscape irrigaon from potable water to recycled water, historic preservaon, and tree maintenance.
For these reasons stated above, less than significant impacts will occur.
MITIGATION:
None required.
604
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 72 d) Create a new source of substan
al light or glare which would adversely affect day or nigh)me views in the area?
DISCUSSION OF EFFECTS:
Less Than Significant Impact. Project implementaon will not permanently change land use or construct new highly visible structures, or permanent sources of light and glare. During construcon the Project could introduce temporary and non-substanve new sources of light and glare in the APE and Local Vicinity associated with construcon acvies, equipment, traffic, and detours. These new sources will be temporary and intermi"ent; they are not substanal based on the types and quanes of equipment and size of construcon crew that will be needed to construct 60 to 80 feet of pipeline daily. NighLme construcon is not proposed; it would be avoided when possible and would be implemented pursuant to state and local standards, which require downlit work areas and barriers to protect sensive land use.
As a result, the Project would not create a new source of substanal light or glare which would adversely affect day or nighLme views in the area. Therefore, less than significant impacts are ancipated from the Project implementaon.
MITIGATION:
None required.
605
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 73 2. AGRICULTURE AND FORESTRY RESOURCES
2.1 Regulatory Compliance
The California Land Conserva%on Act or Williamson Act
The California Land Conservaon Act or Williamson Act was established a2er World War II in response to increasing conservaon pressures on agricultural lands. The Act allows local agencies to contract with private landowners, allowing reduced property tax in exchange for restricted use of land for agriculture or open space.
In 1965, Assembly Bill 1227 was enacted to establish a contract process to manage the rate of conservaon of agricultural lands to urban uses. In determining whether impacts to agricultural resources are significant environmental effects, lead agencies may refer to the California Agricultural Land Evaluaon and Site Assessment Model (1997) prepared by the California Department of Conservaon. As an oponal model to use in assessing the quality of agricultural land and level of impacts on agriculture and environmental effects, lead agencies may refer to informaon compiled by the California Department of Forestry and Fire Protecon regarding the state’s inventory of forest land, including the Forest and Range Assessment Project; and the forest carbon measurement methodology providing in Forest Protocols adopted by the California Air Resources Board.
Farmland Mapping and Monitoring Program
The California Natural Resources Agency is tasked with preserving, protecng, and maintaining California’s natural, cultural, and historic resources. As a result, the California Department of Conservaon (CA DOC) manages the Farmland Mapping and Monitoring Program, which provides a map of farmland resources throughout California according to the following classificaons: Prime Farmland, Farmland of Statewide Importance, Unique Farmland, Farmland of Local Importance, and Urban and Built-Up Land. See “Definions” Secon for more informaon.
City of Ontario
Under The Ontario Plan and in the GP EIR, there currently is no land designated for agricultural use. Exisng agriculture uses are allowed but connue as non-conforming uses according to City Policies ER-5.3: Right to Farm and ER-5.4: Protecon of Exisng Farms and Sensive Areas. Prior to adopon of The Ontario Plan, Ontario adopted the Agricultural Overlay Zoning District, Secon 9-1.2700 into the Municipal Code, which allowed land to be ulized for agricultural purposes within the Ontario Ranch subareas unl development could be approved; new construcon within the Agricultural Overlay Zone, except for agricultural-related acvies, required adopon of a Specific Plan. The closest agricultural to the Project is to the south and southwest of E. Riverside Drive on land designated as Specific Plan on Ontario’s Zoning Map (See Figure 4B), which indicates the urbanizaon of these areas has been approved by Ontario.
2.2 Exis%ng Condi%ons
Agriculture was the primary land use when the City of Ontario was first incorporated; this included dairy farms, citrus, and vineyards. According to The Ontario Plan, Ontario’s total farmland within city limits is approximately 2,342 acres with the closest farmland primarily south of E. Riverside Drive, south of paved ROW as shown on Figure 4B.
The Project will construct water mains to extend Ontario’s recycled water system and will provide connecons within developed public ROW to convert exisng irrigaon systems on developed parcels from potable water to recycled water. In the north part of the Project, Ontario’s Downtown District, urbanizaon began in the late 1800’s and this area is completely urbanized. Land protected under the Williamson Act within city limits is primarily found south of E. Riverside Drive, directly adjacent to the paved ROW of eastbound E. Riverside Drive, Specifically, south of the intersecons of E Riverside Drive with S. Baker Avenue and at S. Cucamonga Avenue.
Areas south of the Project along E. Riverside Drive are zoned for Specific Plan land use indicang Ontario’s intent to approve development in these areas in the future.
606
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 74 2.3 Project Impacts
a) Convert Prime Farmland, Unique Farmland, or Farmland of Statewide Importance (Farmland), as shown on the maps prepared pursuant to the Farmland Mapping and Monitoring Program of the California Resources Agency, to non-agricultural use?
DISCUSSION OF EFFECTS:
No Impact. The Project will extend Ontario’s recycled water system within paved and developed ROW in conformance with The Ontario Plan and approved WMP, CIP, and GP EIR. The extension of Ontario’s recycled water system has been considered and approved by Ontario’s decision makers under cerfied GP EIR and approvals for The Ontario Plan (ONT, 2022), and Recycled Water Master Plan Update (ONT, 2020). The Project will not result in addional changes to zoning or the Zoning Code or Ontario’s Municipal Code beyond what has already been considered in the GP EIR. The Project will convert exisng irrigaon systems for landscaping from potable water to conserve potable water supplies. The closest Project construcon to agriculture will be in eastbound ROW of E. Riverside Drive, which is adjacent to the north of exisng agricultural land use and will not convert Farmland to non-agricultural use.
Temporary construcon will be isolated within exisng paved ROW for Euclid Avenue, E. Riverside Drive and city parks/open space located north of exisng agriculture and will not result in direct impacts. Likewise, there will not be temporary indirect impacts such as runoff or emissions affecng agriculture to the south of the APE due to the standard applicaon of Ontario’s Municipal Code requirements and the MMRP for the Project. During construcon the Project will implement an MMRP including migaon measures to acceptably stabilize disturbed soils, minimize erosion and protect surface water quality during earthwork by managing fugive dust, air emissions from equipment idling, stabilizing disturbed soils with covering or watering (see MM AQ-01, AQ02, GEO-03 through GEO-05, and HYDRO-01). Upon compleon of construcon, surfaces will be restored to pre-project condions. Therefore, the Project will not have indirect impacts on Farmland.
There will be no cumulave impacts or growth inducement from the Project affecng Farmland due to consistency with The Ontario Plan. The Project is an alternave to the previously approved City of Ontario RWDS Project. No agricultural impacts would result from Project implementaon beyond what is already idenfied in Ontario’s GP EIR, Land Use Map, and in approved regional plans for this area.
For these reasons, no Project impacts on Farmland will occur, and Project implementaon will not result in conversion of agricultural land to other uses or growth beyond what has already been considered and approved in The Ontario Plan. No impacts are ancipated; therefore, no Migaon Measures are needed.
MITIGATION:
None required.
b) Conflict with exis
ng zoning for agricultural use, or a Williamson Act contract?
DISCUSSION OF EFFECTS
No Impact. According to the Ontario Plan, the Project is adjacent to the north of exisng zoning for agricultural use, or a Williamson Act contract, which are on the southside of E. Riverside Drive. Due to the proximity of agricultural land uses, the Project will implement the MMRP during Project construcon (See MM AQ-01:
Fugi(ve Dust Control, MM AQ-02: Exhaust Emissions Control, MM GEO-03: Stored Backfill, MM GEO-04:
Excavated Areas, MM GEO-05: Disturbed Soils, HYDRO-01: SWPPP, NOI-01: Construc(on Noise, and TRAF-01:
Traffic Control Plan to minimize indirect impacts from dust, air emissions, erosion, noise, and traffic to less than 607
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 75 significant levels ; therefore, Project related temporary construcon impacts will not affect adjacent areas and acve construcon will be isolated within the public ROW.
As a result, the proposed Project will not conflict with exisng zoning for agricultural, or a Williamson Act contract. No impacts are ancipated; therefore, no Migaon Measures are necessary.
MITIGATION:
None required.
c) Conflict with exis
ng zoning for, or cause rezoning of, forest land (as defined in Public Resources Code Sec
on 12220(g)),
mberland (as defined by Public Resources Code Sec
on 4526), or
mberland zoned
Timberland Produc
on (as defined by Government Code Sec
on 51104(g))?
DISCUSSION OF EFFECTS:
No Impact. There are no areas designated as forest land or mberland within the city limits of Ontario, as defined under Public Resources Code Secon 12220(g) (see “Definions” Secon). The Project will implement the policies outlined in The Ontario Plan for replacement of potable water with recycled water for irrigaon, which is also reflected in regional plans; therefore, the Project will not conflict with exisng zoning or cause rezoning either directly or indirectly. The Project will have no impacts related to exisng zoning or rezoning of forest land or mberland. No Migaon Measures are needed.
MITIGATION:
None required.
d) Result in the loss of forest land or conversion of forest land to non-forest use? DISCUSSION OF EFFECTS:
No Impact. The Project will fulfill Ontario’s approved policies for increased availability of recycled water for landscape irrigaon within exisng public open spaces. The Project is intended to support the full implementaon of the land use pa"erns approved in The Ontario Plan Land Use Map and would not result in loss of forest land or conversion of forest land beyond what has already been considered and approved in city and regional plans for this area. For these reasons, no impacts involving loss or conversion of land labeled as Forest will result from Project implementaon. No Migaon is not needed.
MITIGATION:
None required.
e) Involve other changes in the exis
ng environment which, due to their loca
on or nature, could result in
conversion of Farmland, to non-agricultural use or conversion of forest land to non-forest use.
DISCUSSION OF EFFECTS:
Less than Significant. See Secon 2.3, Discussion of Effects a) through d) above. No addional changes in the exisng environment resulng in conversaon of Farmland to non-agricultural use or conversion of forest to non-forest use are expected from Project implementaon. The proposed ulity improvement is consistent with The Ontario Plan and approved regional plans. No impacts are ancipated; therefore, no migaon measures are needed.
MITIGATION:
None required.
608
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 76 f) Convert Prime Farmland, Unique Farmland, or Farmland of Statewide Importance (Farmland), as shown on the maps prepared pursuant to the Farmland Mapping and Monitoring Program of the California Resources Agency, to non-agricultural use?
DISCUSSION OF EFFECTS:
No Impact. The Project is consistent with approved city and regional plans; it will fulfill Ontario’s approved recycled water policies for landscape irrigaon. The Project will be implemented within developed City ROW and would not result in addional loss or conversion of Farmland. For these reasons, no impacts involving loss or conversion of Farmland will result from Project implementaon. No Migaon is not needed.
MITIGATION:
None required.
609
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 77 3. AIR QUALITY
3.1 Regulatory Compliance
The federal, state, and regional agencies listed below regulate air emissions and acvies and monitor air quality compliance within 11 air basins which are defined by common geographical and meteorological characteriscs.
Air quality regulaons focus on controlling emissions of criteria pollutants from direct emissions (related to combuson, dust, and acvies, such as applicaon of paints and coangs), or from secondary emissions which form from primary Criteria Pollutant mixing due to weather pa"erns and air temperatures. Criteria pollutants are indicators of the level of air polluon within an air basin.
The Project is in the South Coast Air Basin (Basin) and air quality within the Basin is the responsibility of the South Coast Air Quality Management District (SCAQMD). Criteria pollutants regulated by SCAQMD include Ozone (O3), Nitrogen Dioxide (NOx), Carbon Monoxide (CO), Sulfur Dioxide (Sox), Lead (Pb), and Parculate Ma"er less than 10 microns and 2.5 microns in diameter (PM10 and PM 2.5). Regulated criteria pollutants have been proven to harm health and the environment to the point of causing damage to property and health. Monitoring and regulators like the EPA classify “criteria” air pollutant emissions based on related human health outcomes and/or environmental quality as criteria for seLng permissible levels. Sensive receptors for air quality include the elderly, children and those with respiratory condions and involve schools, nursing homes, locaons where 24/7 occupancy may occur. The following agencies, air quality plans, and programs are applicable to the Project:
Federal and State Ambient Air Quality Standards
The Federal Clean Air Act was first implemented by the U.S. Environmental Protecon Agency (EPA) in 1970 to enforce federal Naonal Ambient Air Quality Standards (NAAQS) for six criteria air pollutants, which include PM 10, PM 2.5, carbon monoxide (CO), nitrogen dioxide (NO2), ground-level ozone, and lead. Federal standards are designed to protect public health and the environment with a reasonable margin of safety (see Table 8: Federal and State Standards for Criteria Pollutants).
California Air Resources Board (CARB)
The California Air Resources Control Board (CARB) is a part of the California Environmental Protecon Agency (CalEPA) and coordinates/administers both federal and state air polluon control programs within California.
CARB conducts research and sets the California Ambient Air Quality Standards (CAAQS), compiles emission inventories, develops suggested control measures, provides oversight of local programs, and prepares the State Implementaon Plan (SIP) to achieve healthful air quality in California. CARB is also responsible for regulaons pertaining to Toxic Air Contaminants (TAC). CARB and the EPA label areas as “nona"ainment” areas if air quality standards are not met; if there is inadequate or inconclusive data to make a definive a"ainment designaon, air quality is considered “unclassified.” Naonal nona"ainment areas are further designated as marginal, moderate, serious, severe, or extreme as a funcon of deviaon from standards. Each standard has a different definion, or ‘form’ of what constutes a"ainment, based on specific air quality stascs (CARB). Table 9: South Coast Air Pollu(on Control District ACainment Status displays the current a"ainment status of SCAQMD.
610
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 78 TABLE 8: FEDERAL AND STATE STANDARDS FOR CRITERIA POLLUTANTS
Air Pollutant
Concentra%on/ Averaging Time
Most Relevant Effect
California Standards
Federal Primary
Standards
Ozone (O3)
0.09 ppm/1-hour
0.07 ppm/8-hour
0.070 ppm/8-hour
(a) Decline in pulmonary func%on and localized lung edema in humans and animals; (b) Risk to public health implied by altera%ons in pulmonary morphology and host defense in
animals,
(c) Increase. mortality risk.
(d) Risk to public health implied by altered connec%ve %ssue metabolism and altered pulmonary morphology in animals aDer long-term exposures and pulmonary func%on decrements in chronically exposed humans.
(e) Vegeta%on damage; and
(f) Property damage.
Carbon
Monoxide (CO)
20.0 ppm/1-hour
9.0 ppm/8-hour
35.0 ppm/1-hour
9.0 ppm/8-hour
(a) Aggrava%on of angina pectoris and other aspects of coronary heart disease.
(b) Decreased exercise tolerance in persons with peripheral vascular disease and lung disease.
(c) Impairment of central nervous system func%ons; and
(d) Possible increased risk to fetuses.
Nitrogen
Dioxide (NO2)
0.18 ppm/1-hour
0.03 ppm/annual
100 ppb/1-hour
0.053 ppm/annual
(a) Poten%al to aggravate chronic respiratory disease and respiratory symptoms in sensi%ve groups.
(b) Risk to public health implied by pulmonary and extrapulmonary biochemical and cellular changes and pulmonary structural changes; and
(c) Contribu%on to atmospheric discolora%on.
Sulfur
Dioxide
(SO2)
0.25 ppm/1-hour
0.04 ppm/24-hour
75 ppb/1-hour
0.14 ppm/annual
(a) Bronchoconstric%on accompanied by symptoms which may include wheezing, shortness of breath and chest %ghtness, during exercise or physical ac%vity in persons with asthma.
Suspended
Par%culate
MaFer (PM10)
50 µg/m3/24-hour
20 µg/m3/annual
150 µg/m3/24-
hour
(a) Exacerba%on of symptoms in sensi%ve pa%ents with
respiratory or cardiovascular disease.
(b) Declines in pulmonary func%on growth in children.
(c) Increased risk of premature death from heart or lung diseases in elderly.
Suspended
Par%culate
MaFer (PM2.5)
12 µg/m3 / annual 35 µg/m3/24-hour
12 µg/m3/annual
Sulfates 25 µg/m3/24-hour
No Federal
Standards
(a) Decrease in ven%latory func%on.
(b) Aggrava%on of asthma%c symptoms.
(c) Aggrava%on of cardio-pulmonary disease.
(d) Vegeta%on damage.
(e) Degrada%on of visibility.
(f) property damage.
Lead
1.5 µg/m3/30-day 0.15 µg/m3/3-
month rolling
(a) Learning disabili%es.
(b) Impairment of blood forma%on and nerve conduc%on.
Visibility
Reducing
Par%cles
Ex%nc%on coefficient of
0.23 per kilometervisibility of 10 miles or
more due to par%cles
when humidity is less
than 70 percent.
No Federal
Standards
Visibility impairment on days when rela%ve humidity is less than 70 percent.
Source: hFps://ww2.arb.ca.gov/sites/default/files/2020-07/aaqs2.pdf
611
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 79 TABLE 9: SOUTH COAST AIR QUALITY MANAGMENT DISTRICT ATTAINMENT STATUS Pollutant State Status Federal AFainment Status
Ozone- One hour Extreme NonaFainment No Federal Standard Ozone- Eight hour Extreme NonaFainment Extreme NonaFainment PM10 Serious NonaFainment AFainment
PM2.5 NonaFainment NonaFainment
Carbon Monoxide (CO) AFainment/ Unclassified AFainment/ Unclassified Nitrogen Monoxide (NO) AFainment/ Unclassified AFainment Sulfur Dioxide (SO2) AFainment/ Unclassified AFainment
Lead No Designa%on/ Classifica%on AFainment
Hydrogen Sulfide No Federal Standard Unclassified
Sulfates No Federal Standard AFainment
Visibility Reducing Par%cles No Federal Standard Unclassified Vinyl Chloride No Federal Standard AFainment
Source: (1) SCAQMD 2020. (2) The 2050 Ontario Plan EIR, 2022 Notes: (1) Unclassified- A pollutant is designated unclassified if the data are incomplete and do not support a designa%on of aFainment or nonaFainment. (2) AFainment. A pollutant is in aFainment if the AAQS for that pollutant was not violated at any site in the area during a three-year period. (3) NonaFainment. A pollutant is in nonaFainment if there was at least one viola%on of an AAQS for that pollutant in the area. (4) NonaFainment/Transi%onal. A subcategory of the nonaFainment designa%on. An area is designated nonaFainment/transi%onal to signify that the area is close to aFaining the AAQS for that pollutant.
South Coast Air Quality Management District (SCAQMD)
SCAQMD is the regional agency principally responsible for comprehensive air polluon control in the Basin.
SCAQMD works directly with the Southern California Associaon of Governments (SCAG), county transportaon commissions, and local governments and cooperates acvely with all federal and state agencies. SCAQMD is responsible for preparing and implemenng the Air Quality Management Plan (AQMP) within the Basin in compliance with the SIP, CAAQS and NAAQS. The SCAQMD’s mission is to “clean the air and protect the health of all residents in the South Coast Air District through praccal and innovave strategies” (SCAQMD 2022). The agency regulates air quality through preparaon and implementaon of air quality compliance measures for Basin compliance with naonal and state air quality standards established for this area. SCAQMD maintains 38 air quality monitoring sites with designated ambient air monitoring staons representave of each area. The staons record meteorological informaon to help forecast daily polluon levels.
Air Quality Management Plan
The 2016 AQMP is a regional blueprint for achieving the federal air quality standards (see Table 8: Federal and State Pollutant Standards for Criteria Pollutants) and healthful air within the Basin through both staonary and mobile source strategies to reduce pollutant emissions and regulate air quality. Following are some policies of the AQMP that are typically applied to development projects and construcon to reduce emissions:
SCAQMD Rule 402: Prohibits a person from discharging from any source whatsoever such quanes of air contaminants or other material which cause injury, detriment, nuisance, or annoyance to any considerable number of persons or to the public, or which endanger the comfort, repose, health or safety of any such persons or the public, or which cause, or have a natural tendency to cause, injury or damage to business or property.
SCAQMD Rule 403: Governs emissions of fugive dust during construcon and operaon acvies. Compliance with this rule is achieved through applicaon of standard Best Management Pracces (BMPs), such as applicaon of water or chemical stabilizers to disturbed soils, covering haul vehicles, restricng vehicle speeds on unpaved roads to 15 miles per hour, sweeping loose dirt from paved site access roadways, cessaon of construcon acvity when winds exceed 25 mph, and establishing a permanent ground cover on finished sites.
SCAQMD Rule 403 requires that fugive dust be controlled with best available control measures so that the presence of dust does not remain visible in the atmosphere beyond the property line of the emission source. In addion, SCAQMD Rule 403 requires implementaon of dust suppression techniques to prevent fugive dust 612
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 73 2. AGRICULTURE AND FORESTRY RESOURCES
2.1 Regulatory Compliance
The California Land Conserva6on Act or Williamson Act
The California Land Conserva0on Act or Williamson Act was established aFer World War II in response to increasing conserva0on pressures on agricultural lands. The Act allows local agencies to contract with private landowners, allowing reduced property tax in exchange for restricted use of land for agriculture or open space.
In 1965, Assembly Bill 1227 was enacted to establish a contract process to manage the rate of conserva0on of agricultural lands to urban uses. In determining whether impacts to agricultural resources are significant environmental effects, lead agencies may refer to the California Agricultural Land Evalua0on and Site Assessment Model (1997) prepared by the California Department of Conserva0on. As an op0onal model to use in assessing the quality of agricultural land and level of impacts on agriculture and environmental effects, lead agencies may refer to informa0on compiled by the California Department of Forestry and Fire Protec0on regarding the state’s inventory of forest land, including the Forest and Range Assessment Project; and the forest carbon measurement methodology providing in Forest Protocols adopted by the California Air Resources Board.
Farmland Mapping and Monitoring Program
The California Natural Resources Agency is tasked with preserving, protec0ng, and maintaining California’s natural, cultural, and historic resources. As a result, the California Department of Conserva0on (CA DOC) manages the Farmland Mapping and Monitoring Program, which provides a map of farmland resources throughout California according to the following classifica0ons: Prime Farmland, Farmland of Statewide Importance, Unique Farmland, Farmland of Local Importance, and Urban and Built-Up Land. See “Defini0ons” Sec0on for more informa0on.
City of Ontario
Under The Ontario Plan and in the GP EIR, there currently is no land designated for agricultural use. Exis0ng agriculture uses are allowed but con0nue as non-conforming uses according to City Policies ER-5.3: Right to Farm and ER-5.4: Protec0on of Exis0ng Farms and Sensi0ve Areas. Prior to adop0on of The Ontario Plan, Ontario adopted the Agricultural Overlay Zoning District, Sec0on 9-1.2700 into the Municipal Code, which allowed land to be u0lized for agricultural purposes within the Ontario Ranch subareas un0l development could be approved; new construc0on within the Agricultural Overlay Zone, except for agricultural-related ac0vi0es, required adop0on of a Specific Plan. The closest agricultural to the Project is to the south and southwest of E. Riverside Drive on land designated as Specific Plan on Ontario’s Zoning Map (See Figure 4B), which indicates the urbaniza0on of these areas has been approved by Ontario.
2.2 Exis6ng Condi6ons
Agriculture was the primary land use when the City of Ontario was first incorporated; this included dairy farms, citrus, and vineyards. According to The Ontario Plan, Ontario’s total farmland within city limits is approximately 2,342 acres with the closest farmland primarily south of E. Riverside Drive, south of paved ROW as shown on Figure 4B.
The Project will construct water mains to extend Ontario’s recycled water system and will provide connec0ons within developed public ROW to convert exis0ng irriga0on systems on developed parcels from potable water to recycled water. In the north part of the Project, Ontario’s Downtown District, urbaniza0on began in the late 1800’s and this area is completely urbanized. Land protected under the Williamson Act within city limits is primarily found south of E. Riverside Drive, directly adjacent to the paved ROW of eastbound E. Riverside Drive, Specifically, south of the intersec0ons of E Riverside Drive with S. Baker Avenue and at S. Cucamonga Avenue.
Areas south of the Project along E. Riverside Drive are zoned for Specific Plan land use indica0ng Ontario’s intent to approve development in these areas in the future.
613
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 74 2.3 Project Impacts
a) Convert Prime Farmland, Unique Farmland, or Farmland of Statewide Importance (Farmland), as shown on the maps prepared pursuant to the Farmland Mapping and Monitoring Program of the California Resources Agency, to non-agricultural use?
DISCUSSION OF EFFECTS:
No Impact. The Project will extend Ontario’s recycled water system within paved and developed ROW in conformance with The Ontario Plan and approved WMP, CIP, and GP EIR. The extension of Ontario’s recycled water system has been considered and approved by Ontario’s decision makers under cer0fied GP EIR and approvals for The Ontario Plan (ONT, 2022), and Recycled Water Master Plan Update (ONT, 2020). The Project will not result in addi0onal changes to zoning or the Zoning Code or Ontario’s Municipal Code beyond what has already been considered in the GP EIR. The Project will convert exis0ng irriga0on systems for landscaping from potable water to conserve potable water supplies. The closest Project construc0on to agriculture will be in eastbound ROW of E. Riverside Drive, which is adjacent to the north of exis0ng agricultural land use and will not convert Farmland to non-agricultural use.
Temporary construc0on will be isolated within exis0ng paved ROW for Euclid Avenue, E. Riverside Drive and city parks/open space located north of exis0ng agriculture and will not result in direct impacts. Likewise, there will not be temporary indirect impacts such as runoff or emissions affec0ng agriculture to the south of the APE due to the standard applica0on of Ontario’s Municipal Code requirements and the MMRP for the Project. During construc0on the Project will implement an MMRP including mi0ga0on measures to acceptably stabilize disturbed soils, minimize erosion and protect surface water quality during earthwork by managing fugi0ve dust, air emissions from equipment idling, stabilizing disturbed soils with covering or watering (see MM AQ-01, AQ02, GEO-03 through GEO-05, and HYDRO-01). Upon comple0on of construc0on, surfaces will be restored to pre-project condi0ons. Therefore, the Project will not have indirect impacts on Farmland.
There will be no cumula0ve impacts or growth inducement from the Project affec0ng Farmland due to consistency with The Ontario Plan. The Project is an alterna0ve to the previously approved City of Ontario RWDS Project. No agricultural impacts would result from Project implementa0on beyond what is already iden0fied in Ontario’s GP EIR, Land Use Map, and in approved regional plans for this area.
For these reasons, no Project impacts on Farmland will occur, and Project implementa0on will not result in conversion of agricultural land to other uses or growth beyond what has already been considered and approved in The Ontario Plan. No impacts are an0cipated; therefore, no Mi0ga0on Measures are needed.
MITIGATION:
None required.
b) Conflict with exisng zoning for agricultural use, or a Williamson Act contract?
DISCUSSION OF EFFECTS
No Impact. According to the Ontario Plan, the Project is adjacent to the north of exis0ng zoning for agricultural use, or a Williamson Act contract, which are on the southside of E. Riverside Drive. Due to the proximity of agricultural land uses, the Project will implement the MMRP during Project construc0on (See MM AQ-01:
Fugi/ve Dust Control, MM AQ-02: Exhaust Emissions Control, MM GEO-03: Stored Backfill, MM GEO-04:
Excavated Areas, MM GEO-05: Disturbed Soils, HYDRO-01: SWPPP, NOI-01: Construc/on Noise, and TRAF-01:
Traffic Control Plan to minimize indirect impacts from dust, air emissions, erosion, noise, and traffic to less than 614
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 75 significant levels ; therefore, Project related temporary construc0on impacts will not affect adjacent areas and ac0ve construc0on will be isolated within the public ROW.
As a result, the proposed Project will not conflict with exis0ng zoning for agricultural, or a Williamson Act contract. No impacts are an0cipated; therefore, no Mi0ga0on Measures are necessary.
MITIGATION:
None required.
c) Conflict with exisng zoning for, or cause rezoning of, forest land (as defined in Public Resources Code Secon 12220(g)), mberland (as defined by Public Resources Code Secon 4526), or mberland zoned Timberland Producon (as defined by Government Code Secon 51104(g))? DISCUSSION OF EFFECTS:
No Impact. There are no areas designated as forest land or 0mberland within the city limits of Ontario, as defined under Public Resources Code Sec0on 12220(g) (see “Defini0ons” Sec0on). The Project will implement the policies outlined in The Ontario Plan for replacement of potable water with recycled water for irriga0on, which is also reflected in regional plans; therefore, the Project will not conflict with exis0ng zoning or cause rezoning either directly or indirectly. The Project will have no impacts related to exis0ng zoning or rezoning of forest land or 0mberland. No Mi0ga0on Measures are needed.
MITIGATION:
None required.
d) Result in the loss of forest land or conversion of forest land to non-forest use? DISCUSSION OF EFFECTS:
No Impact. The Project will fulfill Ontario’s approved policies for increased availability of recycled water for landscape irriga0on within exis0ng public open spaces. The Project is intended to support the full implementa0on of the land use pa@erns approved in The Ontario Plan Land Use Map and would not result in loss of forest land or conversion of forest land beyond what has already been considered and approved in city and regional plans for this area. For these reasons, no impacts involving loss or conversion of land labeled as Forest will result from Project implementa0on. No Mi0ga0on is not needed.
MITIGATION:
None required.
e) Involve other changes in the exisng environment which, due to their locaon or nature, could result in conversion of Farmland, to non-agricultural use or conversion of forest land to non-forest use.
DISCUSSION OF EFFECTS:
Less than Significant. See Sec0on 2.3, Discussion of Effects a) through d) above. No addi0onal changes in the exis0ng environment resul0ng in conversa0on of Farmland to non-agricultural use or conversion of forest to non-forest use are expected from Project implementa0on. The proposed u0lity improvement is consistent with The Ontario Plan and approved regional plans. No impacts are an0cipated; therefore, no mi0ga0on measures are needed.
MITIGATION:
None required.
615
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 76 f) Convert Prime Farmland, Unique Farmland, or Farmland of Statewide Importance (Farmland), as shown on the maps prepared pursuant to the Farmland Mapping and Monitoring Program of the California Resources Agency, to non-agricultural use?
DISCUSSION OF EFFECTS:
No Impact. The Project is consistent with approved city and regional plans; it will fulfill Ontario’s approved recycled water policies for landscape irriga0on. The Project will be implemented within developed City ROW and would not result in addi0onal loss or conversion of Farmland. For these reasons, no impacts involving loss or conversion of Farmland will result from Project implementa0on. No Mi0ga0on is not needed.
MITIGATION:
None required.
616
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 77 3. AIR QUALITY
3.1 Regulatory Compliance
The federal, state, and regional agencies listed below regulate air emissions and ac0vi0es and monitor air quality compliance within 11 air basins which are defined by common geographical and meteorological characteris0cs.
Air quality regula0ons focus on controlling emissions of criteria pollutants from direct emissions (related to combus0on, dust, and ac0vi0es, such as applica0on of paints and coa0ngs), or from secondary emissions which form from primary Criteria Pollutant mixing due to weather pa@erns and air temperatures. Criteria pollutants are indicators of the level of air pollu0on within an air basin.
The Project is in the South Coast Air Basin (Basin) and air quality within the Basin is the responsibility of the South Coast Air Quality Management District (SCAQMD). Criteria pollutants regulated by SCAQMD include Ozone (O3), Nitrogen Dioxide (NOx), Carbon Monoxide (CO), Sulfur Dioxide (Sox), Lead (Pb), and Par0culate Ma@er less than 10 microns and 2.5 microns in diameter (PM10 and PM 2.5). Regulated criteria pollutants have been proven to harm health and the environment to the point of causing damage to property and health. Monitoring and regulators like the EPA classify “criteria” air pollutant emissions based on related human health outcomes and/or environmental quality as criteria for seVng permissible levels. Sensi0ve receptors for air quality include the elderly, children and those with respiratory condi0ons and involve schools, nursing homes, loca0ons where 24/7 occupancy may occur. The following agencies, air quality plans, and programs are applicable to the Project:
Federal and State Ambient Air Quality Standards
The Federal Clean Air Act was first implemented by the U.S. Environmental Protec0on Agency (EPA) in 1970 to enforce federal Na0onal Ambient Air Quality Standards (NAAQS) for six criteria air pollutants, which include PM 10, PM 2.5, carbon monoxide (CO), nitrogen dioxide (NO2), ground-level ozone, and lead. Federal standards are designed to protect public health and the environment with a reasonable margin of safety (see Table 8: Federal and State Standards for Criteria Pollutants).
California Air Resources Board (CARB)
The California Air Resources Control Board (CARB) is a part of the California Environmental Protec0on Agency (CalEPA) and coordinates/administers both federal and state air pollu0on control programs within California.
CARB conducts research and sets the California Ambient Air Quality Standards (CAAQS), compiles emission inventories, develops suggested control measures, provides oversight of local programs, and prepares the State Implementa0on Plan (SIP) to achieve healthful air quality in California. CARB is also responsible for regula0ons pertaining to Toxic Air Contaminants (TAC). CARB and the EPA label areas as “nona@ainment” areas if air quality standards are not met; if there is inadequate or inconclusive data to make a defini0ve a@ainment designa0on, air quality is considered “unclassified.” Na0onal nona@ainment areas are further designated as marginal, moderate, serious, severe, or extreme as a func0on of devia0on from standards. Each standard has a different defini0on, or ‘form’ of what cons0tutes a@ainment, based on specific air quality sta0s0cs (CARB). Table 9: South Coast Air Pollu/on Control District AFainment Status displays the current a@ainment status of SCAQMD.
617
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 78 TABLE 8: FEDERAL AND STATE STANDARDS FOR CRITERIA POLLUTANTS
Air Pollutant
Concentra6on/ Averaging Time
Most Relevant Effect
California Standards
Federal Primary
Standards
Ozone (O3)
0.09 ppm/1-hour
0.07 ppm/8-hour
0.070 ppm/8-hour
(a) Decline in pulmonary func6on and localized lung edema in humans and animals; (b) Risk to public health implied by altera6ons in pulmonary morphology and host defense in
animals,
(c) Increase. mortality risk.
(d) Risk to public health implied by altered connec6ve 6ssue metabolism and altered pulmonary morphology in animals aQer long-term exposures and pulmonary func6on decrements in chronically exposed humans.
(e) Vegeta6on damage; and
(f) Property damage.
Carbon
Monoxide (CO)
20.0 ppm/1-hour
9.0 ppm/8-hour
35.0 ppm/1-hour
9.0 ppm/8-hour
(a) Aggrava6on of angina pectoris and other aspects of coronary heart disease.
(b) Decreased exercise tolerance in persons with peripheral vascular disease and lung disease.
(c) Impairment of central nervous system func6ons; and
(d) Possible increased risk to fetuses.
Nitrogen
Dioxide (NO2)
0.18 ppm/1-hour
0.03 ppm/annual
100 ppb/1-hour
0.053 ppm/annual
(a) Poten6al to aggravate chronic respiratory disease and respiratory symptoms in sensi6ve groups.
(b) Risk to public health implied by pulmonary and extrapulmonary biochemical and cellular changes and pulmonary structural changes; and
(c) Contribu6on to atmospheric discolora6on.
Sulfur
Dioxide
(SO2)
0.25 ppm/1-hour
0.04 ppm/24-hour
75 ppb/1-hour
0.14 ppm/annual
(a) Bronchoconstric6on accompanied by symptoms which may include wheezing, shortness of breath and chest 6ghtness, during exercise or physical ac6vity in persons with asthma.
Suspended
Par6culate
MaYer (PM10)
50 µg/m3/24-hour
20 µg/m3/annual
150 µg/m3/24-
hour
(a) Exacerba6on of symptoms in sensi6ve pa6ents with
respiratory or cardiovascular disease.
(b) Declines in pulmonary func6on growth in children.
(c) Increased risk of premature death from heart or lung diseases in elderly.
Suspended
Par6culate
MaYer (PM2.5)
12 µg/m3 / annual 35 µg/m3/24-hour
12 µg/m3/annual
Sulfates 25 µg/m3/24-hour
No Federal
Standards
(a) Decrease in ven6latory func6on.
(b) Aggrava6on of asthma6c symptoms.
(c) Aggrava6on of cardio-pulmonary disease.
(d) Vegeta6on damage.
(e) Degrada6on of visibility.
(f) property damage.
Lead
1.5 µg/m3/30-day 0.15 µg/m3/3-
month rolling
(a) Learning disabili6es.
(b) Impairment of blood forma6on and nerve conduc6on.
Visibility
Reducing
Par6cles
Ex6nc6on coefficient of
0.23 per kilometervisibility of 10 miles or
more due to par6cles
when humidity is less
than 70 percent.
No Federal
Standards
Visibility impairment on days when rela6ve humidity is less than 70 percent.
Source: hYps://ww2.arb.ca.gov/sites/default/files/2020-07/aaqs2.pdf
618
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 79 TABLE 9: SOUTH COAST AIR QUALITY MANAGMENT DISTRICT ATTAINMENT STATUS Pollutant State Status Federal AYainment Status
Ozone- One hour Extreme NonaYainment No Federal Standard Ozone- Eight hour Extreme NonaYainment Extreme NonaYainment PM10 Serious NonaYainment AYainment
PM2.5 NonaYainment NonaYainment
Carbon Monoxide (CO) AYainment/ Unclassified AYainment/ Unclassified Nitrogen Monoxide (NO) AYainment/ Unclassified AYainment Sulfur Dioxide (SO2) AYainment/ Unclassified AYainment
Lead No Designa6on/ Classifica6on AYainment
Hydrogen Sulfide No Federal Standard Unclassified
Sulfates No Federal Standard AYainment
Visibility Reducing Par6cles No Federal Standard Unclassified Vinyl Chloride No Federal Standard AYainment
Source: (1) SCAQMD 2020. (2) The 2050 Ontario Plan EIR, 2022 Notes: (1) Unclassified- A pollutant is designated unclassified if the data are incomplete and do not support a designa6on of aYainment or nonaYainment. (2) AYainment. A pollutant is in aYainment if the AAQS for that pollutant was not violated at any site in the area during a three-year period. (3) NonaYainment. A pollutant is in nonaYainment if there was at least one viola6on of an AAQS for that pollutant in the area. (4) NonaYainment/Transi6onal. A subcategory of the nonaYainment designa6on. An area is designated nonaYainment/transi6onal to signify that the area is close to aYaining the AAQS for that pollutant.
South Coast Air Quality Management District (SCAQMD)
SCAQMD is the regional agency principally responsible for comprehensive air pollu0on control in the Basin.
SCAQMD works directly with the Southern California Associa0on of Governments (SCAG), county transporta0on commissions, and local governments and cooperates ac0vely with all federal and state agencies. SCAQMD is responsible for preparing and implemen0ng the Air Quality Management Plan (AQMP) within the Basin in compliance with the SIP, CAAQS and NAAQS. The SCAQMD’s mission is to “clean the air and protect the health of all residents in the South Coast Air District through prac0cal and innova0ve strategies” (SCAQMD 2022). The agency regulates air quality through prepara0on and implementa0on of air quality compliance measures for Basin compliance with na0onal and state air quality standards established for this area. SCAQMD maintains 38 air quality monitoring sites with designated ambient air monitoring sta0ons representa0ve of each area. The sta0ons record meteorological informa0on to help forecast daily pollu0on levels.
Air Quality Management Plan
The 2016 AQMP is a regional blueprint for achieving the federal air quality standards (see Table 8: Federal and State Pollutant Standards for Criteria Pollutants) and healthful air within the Basin through both sta0onary and mobile source strategies to reduce pollutant emissions and regulate air quality. Following are some policies of the AQMP that are typically applied to development projects and construc0on to reduce emissions:
SCAQMD Rule 402: Prohibits a person from discharging from any source whatsoever such quan00es of air contaminants or other material which cause injury, detriment, nuisance, or annoyance to any considerable number of persons or to the public, or which endanger the comfort, repose, health or safety of any such persons or the public, or which cause, or have a natural tendency to cause, injury or damage to business or property.
SCAQMD Rule 403: Governs emissions of fugi0ve dust during construc0on and opera0on ac0vi0es. Compliance with this rule is achieved through applica0on of standard Best Management Prac0ces (BMPs), such as applica0on of water or chemical stabilizers to disturbed soils, covering haul vehicles, restric0ng vehicle speeds on unpaved roads to 15 miles per hour, sweeping loose dirt from paved site access roadways, cessa0on of construc0on ac0vity when winds exceed 25 mph, and establishing a permanent ground cover on finished sites.
SCAQMD Rule 403 requires that fugi0ve dust be controlled with best available control measures so that the presence of dust does not remain visible in the atmosphere beyond the property line of the emission source. In addi0on, SCAQMD Rule 403 requires implementa0on of dust suppression techniques to prevent fugi0ve dust 619
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 80 from crea0ng a nuisance off-site. Applicable dust suppression techniques from Rule 403 are summarized below and can reduce fugi0ve dust genera0on, Par0culate Ma@er 10 microns or greater in diameter (PM10).
Compliance with these rules would reduce impacts on nearby sensi0ve receptors. Measures used to implement Rule 403 may include but are not limited to the following:
• Apply nontoxic chemical soil stabilizers according to manufacturers’ specifica0ons to all inac0ve construc0on areas (previously graded areas inac0ve for 10 days or more). • Water ac0ve sites at least three 0mes daily. (Loca0ons where grading is to occur will be thoroughly watered prior to earthmoving.)
• Cover all trucks hauling dirt, sand, soil, or other loose materials, or maintain at least 0.6 meters (2 feet) of freeboard (ver0cal space between the top of the load and top of the trailer) in accordance with the requirements of California Vehicle Code sec0on 23114.
• Reduce traffic speeds on all unpaved roads to 15 miles per hour (mph) or less. • Suspension of all grading ac0vi0es when wind speeds (including instantaneous wind gusts) exceed 25 mph.
• Bumper strips or similar BMPs shall be provided where vehicles enter and exit the construc0on site onto paved roads or wash off trucks and any equipment leaving the site each trip. • Replan0ng disturbed areas as soon as prac0cal.
• During all construc0on ac0vi0es, construc0on contractors shall sweep on-site and off-site streets if silt is carried to adjacent public thoroughfares, to reduce the amount of par0culate ma@er on public streets.
All sweepers shall be compliant with SCAQMD Rule 1186.1, Less Pollu0ng Sweepers.
SCAQMD Rule 1108: Governs the sale, use, and manufacturing of asphalt and limits the vola0le organic compound (VOC) content in asphalt used in the Basin and regulates the VOC content of asphalt during construc0on. All asphalt used during Project construc0on must comply with SCAQMD Rule 1108.
SCAQMD Rule 1186: Limits the presence of fugi0ve dust on paved and unpaved roads and sets cer0fica0on protocols and requirements for contract street sweepers to provide sweeping services to any federal, state, county, agency or special district such as water, air, sanita0on, transit, or school district.
SCAQMD Rule 1401: New Source Review of TAC, specifies limits for maximum individual cancer risk, cancer burden, and non-cancer acute and chronic hazard index from new permit units, reloca0ons, or modifica0ons to exis0ng permit units, which emit toxic air contaminants.
SCAQMD Rule 2202: On-Road Motor Vehicle Mi0ga0on Op0ons, is to provide employers with a menu of op0ons to reduce mobile source emissions generated from employee commutes, to comply with federal and state Clean Air Act requirements, Health & Safety Code Sec0on 40458, and Sec0on 182(d)(1)(B) of the federal Clean Air Act.
It applies to any employer who employs 250 or more employees on a full or part-0me basis at a worksite for a consecu0ve six-month period calculated as a monthly average.
CEQA Air Quality Handbook
To assist local jurisdic0ons, South Coast Air Basin’s CEQA Air Quality Handbook (SCAQMD CEQA Handbook) was prepared by the SCAQMD in 1993. The version with current updates can be found at h@p://www.aqmd.gov/ceqa/hdbk.html and was developed in accordance with the projec0ons and programs of the AQMP. In addi0on, this document is used as a guidance document for preparing air quality impact analysis and Project mi0ga0on. The SCAQMD is in the process of developing an Air Quality Analysis Guidance Handbook to replace the CEQA Air Quality Handbook. In the interim, supplemental guidance has been adopted by the SCAQMD.
620
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 81 Southern California Associa6on of Governments (SCAG) Transporta6on Plan and Regional Transporta6on Improvement Plan
SCAG has prepared the Regional Transporta0on Plan and Regional Transporta0on Improvement Plan (RTIP) on regional development and growth forecasts. These plans form the basis for the land use and transporta0on components of the AQMP for air quality forecasts and consistency analysis in the AQMP. The Regional Transporta0on Plan, Regional Transporta0on Improvement Plan, and AQMP are based on land use projec0ons origina0ng within the City and County General Plans.
3.2 Exis6ng Condi6ons
Air quality within the City of Ontario is con0ngent on geography, weather, and emissions sources. The City of Ontario experiences temperatures ranging from 39.9 degrees Fahrenheit in January to 92.4 degrees Fahrenheit in July, with average annual precipita0on 20.30 inches (WRCC 2022). Wind pa@erns across the southern California region are westerly or southwesterly onshore winds. Due to Ontario’s geographic loca0on, mountain ranges inhibit eastward transport and diffusion of air pollutants resul0ng in fair to poor air quality. As shown below, the a@ainment status for the SCAQMD is shown below in Table 9: South Coast Air Quality Management District AFainment Status. Since Ontario is a highly developed, urban area pollutant emissions from commercial, industrial, and residen0al land uses are regularly generated from daily ac0vi0es.
SCAQMD documents exis0ng levels of ambient air quality and historical trends u0lizing air monitoring sta0ons closest to the Project. The closest monitoring sta0ons are Upland Monitoring Sta0on (at 1350 San Bernardino Road, Upland, CA 91786), approximately 3 miles north of the Project and Ontario SR-60 Near Roadway Monitoring Sta0ons (Longitude 34.030686, Latitude -117.620032), approximately 4.4 miles southeast of the Project. As shown in Table 10: Ambient Air Quality Monitoring Summary below, pollutants regularly exceed State and federal one-hour and eight-hour Ozone (O3) standards at these monitoring sta0ons, with rare viola0ons in state PM10 and Federal PM2.5 in the last five years (The 2050 Ontario Plan EIR, 2022); as shown in Table 11: City of Ontario Air Pollutant Emissions Inventory, transporta0on and energy produc0on prove to be the ac0vi0es that generate the highest air pollutants. VOC emissions calculated by CalEEMod indicate that use of household consumer cleaning products contribute the most to pollu0on associated with VOC.
TABLE 10: AMBIENT AIR QUALITY MONITORING SUMMARY
Pollutant/ Standard Number of Days Thresholds Were Exceeded and Maximum Levels 2016 2017 2018 2019 2020
Ozone (O3)
State 1-Hour ≥ 0.09 ppm (days exceed threshold)
State & Federal 8-hour ≥ 0.070 ppm (days exceed threshold) Max. 1-Hour Conc. (ppm)
Max 8-Hour Conc. (ppm)
53 88
0.156
0.116
66 87
0.150
0.127
25 52
0.133
0.111
31 52
0.131
0.107
82 116
0.158
0.123
Nitrogen Dioxide (NO2)1
State 1-Hour ≥ 0.18 ppm (days exceed threshold)
State & Federal 8-hour ≥ 0.100 ppm (days exceed threshold) Max. 1-Hour Conc. (ppm)
0 0
70.1 0
0 64.1
0 0
58.7 0
0 57.9
0 0
55.4 Coarse Parculates (PM10)
State 24-Hour ≥ 50 μg/m3 (days exceed threshold)
State & Federal 8-hour ≥ 150 μg/m3 (days exceed threshold) Max. 1-Hour Conc. (ppm)
NA
1 184.0
NA
0 106.5
NA
1 156.6
NA
0 125.9
NA
1 174.8
Fine Parcles (PM2.5)
Federal 24-Hour > 35 μg/m3 (days exceed threshold)
Max 24-Hour Conc. (μg/m3)
7 55.9
9 67.8
7 70.6
6 71.2
14 65.6
Source: CARB 2022C.
Notes: ppm= parts per million; parts per billion; μg/m3 = micrograms per cubic meter Data for O3, NO2, and PM10 was obtained from the Upland Monitoring Sta6on. Data for PM2.5 obtained from the Ontario SR-60 Near Roadway Monitoring Sta6on.
621
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 82 TABLE 11: CITY OF ONTARIO AIR POLLUTANT EMISSIONS INVENTORY Sector Exis6ng Criteria Air Pollutant Emissions (pounds per day) VOC NOx CO SO2 PM10 PM2.5
Transporta6on1 427 6,649 20,047 83 630 257
Energy2 122 1,068 642 7 84 84
Area Off-Road Equipment3 98 2,021 6,472 3 85 78
Area- Consumer Products4 2,096 -- -- -- -- --
Total 2,742 9,738 27,162 93 799 419
Source: The 2050 Ontario Plan EIR, 2022.
Notes:
(1) EMFAC2021 Version 1.0.1. Based on daily VMT provided by Fehr & Peers (see Appendix A). (2) Based on natural gas use provided by SoCalGas.
(3) OFFROAD2021.
(4) Based on CalEEMod, Version 2020.4.0 User’s Guide methodology to calculate VOC emissions from use of household consumer cleaning products.
Land use where occupancy could be on a 24-hour/7-day basis are considered sensi0ve receptors. Likewise, loca0ons a@rac0ng children, such as schools, are considered sensi0ve due to poten0al for outdoor play and developing respiratory systems. The closest sensi0ve receptors to the Project are shown near Project Segments 1, 2, 3, and 4 on Figure 2, 2A and 2B and on Tables 3 and 4. Sensi0ve receptors are located within exis0ng residen0al areas adjacent to or near Euclid Avenue for Segment 1 and for Segment 2 along W. F Street; E. E Street, N. Vine Avenue; W. Flora Street; E. C Street; and E. Riverside Drive. Other sensi0ve receptors near Segment 1 also include Chaffey High School, Vina Danks Middle School, and Champions at Euclid Elementary located approximately 0.1 miles north from the Project at 4th Steet; the American Inn and the Central Language Academy are sensi0ve receptors which are located approximately 0.1 miles east and west from the Project along Euclid Avenue north of G Street; and, the St. George School is a sensi0ve receptors, which is located approximately 0.2 miles from the Project west Euclid Avenue and north of W. D Street. Sensi0ve receptors near Segment 3 also include San Antonion School, located approximately 0.2 miles from the Project east of Euclid Avenue and south of Holt Boulevard. Sensi0ve receptors near Segment 4 also include Woodcrest Junior High School and Liberty Elementary School, located approximately 0.4 miles from the Project north of E. Riverside Drive and west of Campus Avenue. Heavenly Care Daycare and Preschool School is located 0.1 mile south of the Project along E. Riverside Drive and west of Bon View Avenue. Sunrise Children Center is located approximately
0.1 mile east from the Project at the intersec0on of E. Riverside Drive and Baker Avenue. Live Oak Preschool, located approximately 0.2 miles east of the Project at the intersec0on of E. Riverside Drive and Baker Avenue.
3.3 Project Impacts
The Discussion of Effects within this Sec0ons are based on the Air Quality Greenhouse Gas, and Energy Technical Memorandum conducted by Ganddini Group for the Euclid Avenue Recycled Water System Project, dated December 16, 2024 (Appendix A). The Technical Memo is intended to determine short-term impacts related to Air Quality, Greenhouse gas Emissions, and Energy from Project Construc0on. a) Conflict with or obstruct implementaon of the applicable air quality plan? DISCUSSION OF EFFECTS:
Less than Significant Impact. The Project will generate addi0onal emissions of criteria pollutants during construc0on which will be temporary and intermi@ent. The Project will not be a new source of long-term or permanent emissions. Long-term maintenance and opera0ons of the Project will not substan0ally increase maintenance trips, and the Project is consistent with the GP EIR analysis. Air quality impacts from construc0on are described as follows.
622
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 83 Short-Term Construc.on Emissions
To es0mate construc0on-related impacts from Project implementa0on, data from the Project Descrip0on, including informa0on summarized above, was provided as input in CalEEMod Version 22.1.1.21, pursuant to SCAQMD protocol. Modeling results indicate Project emissions would not exceed regional and local thresholds and will contribute incrementally to PM2.5 criteria pollutants that are in non-a@ainment status. According to CalEEMod modeling, Project emissions did not exceed the maximum criteria pollutants for summer or winter months, as shown within Table 12: Construc/on-Related Regional Pollutant Emissions. The table indicates that none of the Project’s emissions will exceed regional thresholds. Therefore, a less than significant regional air quality impact would occur from construc0on.
TABLE 12: CONSTRUCTION RELATED REGIONAL POLLUTANT EMISSIONS Ac6vity Pollutant Emissions (pounds/day)
ROG NOx CO SO2 PM10 PM2.5
Maximum Daily Emissions1 7.34 65.30 66.40 0.16 6.97 4.33 SCAQMD Thresholds 75 100 550 150 150 55
Exceeds Thresholds? No No No No No No
Source: CalEEMod Version 2022.1.1.29
Notes: See Appendix A (Air Quality Global Greenhouse Gas Emissions, Energy Impact Analysis, Ganddini, 2024) (1) Includes both on-site and off-site emissions. On -site earthwork PM-10 and PM-2.5 emissions show compliance with SCAQMD Rule 403 for fugi6ve dust.
Project emissions compared with SCAQMD Local Significance Thresholds were also evaluated to determine whether construc0on impacts from the Project are poten0ally significant. Emissions were calculated based on the Southwest San Bernardino Valley, source receptor area (SRA) 33 thresholds with a disturbance value of 3.5 acres per day. (see Table 13: Maximum Number of Acres Distributed Per Day) 3 . According to LST Methodology,
any receptor located closer than 25 meters (82 feet) shall be based on the 25-meter thresholds. The nearest sensi0ve receptors are the exis0ng residen0al uses; the results of the SCAQMD Look-up Tables for 25 meters are shown within Table 14: Local Construc/on Emissions at the Nearest Receptor and indicate less than significant impacts with no mi0ga0on required.
TABLE 13: MAXIMUM NUMBER OF ACRES DISTURBED PER DAY
Ac6vity Equipment Number Acres/ 8hr- day Total Acres
Site Prepara6on
Rubber Tiered Dozers 2 0.5 1
Scrapers 2 1 2
Crawler Tractors1 1 0.5 0.5
Total for phase - - 3.5
Source: South Coast AQMD, Fact Sheet for Applying CalEEMod to Localized Significance Thresholds, 2011b.
Notes: See Appendix A (Air Quality Global Greenhouse Gas Emissions, Energy Impact Analysis, Ganddini, 2024) (1) Tractor/ loader/ backhoe is suitable surrogate for a crawler tractor per SCAQMD staff.
TABLE 14: LOCAL CONSTRUCTION EMISSIONS AT THE NEAREST RECEPTORS Ac6vity1 One-site Pollutant Emissions (pounds/day)
NOx CO PM10 PM2.5
Maximum Daily Emissions 64.90 64.70 6.6 4.24
SCAQMD Thresholds2 220 1,713 11 7
Exceeds Thresholds? No No No No
Source: Calculated from CalEEMod and SCAQMD’s Mass Rate Look-up Tables for 3.5 acres at a distance of 25 meters in SRA 33 Southwest Valley.
The 3.5-acre threshold was interpolated based on the 2 acre and 5 acre thresholds.
Notes: See Appendix A (Air Quality Global Greenhouse Gas Emissions, Energy Impact Analysis, Ganddini, 2024) (1) The Project will disturb up to maximum if 3.5-acres a day (see Table 13: Maximum Number of Acres Disturbed per Day above). (2) The nearest sensi6ve receptor to the Project includes the exis6ng residen6al uses located adjacent or near to the proposed Project; therefore, 25-meter threshold was used.
3 The 3.5-acre threshold was interpolated from the 2 acre and 5-acre SCAQMD LST Threshold. 623
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 84 MITIGATION:
None required.
b) Result in a cumulavely considerable net increase of any criteria pollutant for which the Project region is non-aOainment under an applicable federal or state ambient air quality standard? DISCUSSION OF EFFECTS:
Less than Significant Impact. As men0oned in response 3.3 a), the modeling for the proposed Project did not find that the construc0on ac0vi0es would exceed regional or local level air quality thresholds; therefore, the Project will not result in cumula0vely considerable net increase of any criteria pollutant for which the region is non-a@ainment under an applicable federal or state ambient air quality standard. Impacts are an0cipated to be less than significant; no mi0ga0on measures are needed.
MITIGATION:
None required.
c) Expose sensive receptors to substanal pollutant concentraons?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. Project construc0on will not exceed regional or local pollutant concentra0ons and, the Project would not result in exposure of substan0al pollutant concentra0ons to sensi0ve receptors. Project-related ac0vi0es are required to be consistent with SCAQMD air quality rules to ensure that fugi0ve dust and exhaust from equipment emissions are appropriately managed throughout construc0on. The Project will implement previously approved Mi0ga0on Measures MM AQ-01: Fugi/ve Dust Control and MM AQ-02: Exhaust Emissions Control.
As a result, less than significant impacts are an0cipated with mi0ga0on incorporated.
MITIGATION:
MM AQ-01: Fugi.ve Dust Control and MM AQ-02: Exhaust Emissions Control
d) Result in other emissions (such as those leading to odors) adversely affecng a substanal number of people?
DISCUSSION OF EFFECTS:
Less than Significant Impact. Poten0al sources that may emit odors during construc0on ac0vi0es include the applica0on of materials such as asphalt pavement. The objec0onable odors that may be produced during the construc0on process are short-term in nature and the odor emissions are expected to cease upon the drying or hardening of the odor-producing materials. Due to the short-term nature and limited amounts of odorproducing materials being u0lized, no significant impact related to odors would occur during the construc0on of the proposed Project. Diesel exhaust and VOCs would be emi@ed during construc0on of the Project, which are objec0onable to some; however, emissions would disperse rapidly from the Project site and therefore should not reach an objec0onable level at the nearest sensi0ve receptors. The Project will not result in a permanent source of odors.
As a result, less than significant impacts are an0cipated from the proposed Project; no Mi0ga0on Measures are needed.
MITIGATION:
None required.
624
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 85 4. BIOLOGICAL RESOURCES
The Discussion within this sec0on is based on the following reports:
- Appendix B: Biological Resources Assessment for the UT1072 Euclid Recycled Water Pipeline Project conducted by ELMT Consul0ng dated March 18, 2024. The report includes a field inves0ga0on conducted by Project Biologist Rachel A. Lyons on January 19, 2024, and February 1, 2024, to document baseline condi0ons and assess the poten0al for special status
4 plant and wildlife species to occur near the Project.
A review of standard field guides, literature, and records search was conducted for specific habitat requirements of special-status and non-special-status biological resources:
- Google Earth Pro historic aerial imagery (1985-2023); - United States Department of Agriculture (USDA) Natural Resource Conserva0on Service (NRCS), Soil Survey5
;
- USFWS Cri0cal Habitat designa0ons for Threatened and Endangered Species; - USFWS Endangered Species Profiles.
- Appendix C: Tree Survey and Arborist Report in Support of the Euclid Avenue Downtown Recycled Water Project, UT1072, Ontario, California. The report includes recorded details of each tree from the field survey, documenta0on of species, stature, health, local environment as well as condi0ons in which they occur.
4.1 Regulatory Compliance
Federal Endangered Species Act
The Endangered Species Act (ESA) was enacted in 1973 and establishes protec0ons for fish, wildlife, and plants that are listed as threatened or endangered along with the ecosystems these species depend on (16 U.S.C. 1531- 1544) (USFWS 2023). The U.S. Fish and Wildlife Service (USFWS) and Na0onal Marine Fisheries Services (NMFS) share the responsibility for implemen0ng the ESA. Generally, USFWS oversees terrestrial and freshwater species, while the NMFS manages marine and anadromous species.
Migratory Bird Treaty Act
The Migratory Bird Treaty Act (MBTA) of 1918 establishes a conserva0on treaty intended to promote the sustainability of popula0ons of protected migratory bird species. The MBTA prohibits killing, capture, selling, trading, and transport of protected migratory bird species without prior authoriza0on by the Department of Interior U.S. Fish and Wildlife (USFWS 2023). In addi0on, the MBTA makes it unlawful to remove nests, eggs, and feathers from any of the species protected under the act. Migratory bird species that are protected by law depend on the bird family and species included in the four interna0onal trea0es (Canada in 1916; Mexico in 1936; Japan in 1972; Russia in 1976). This list can be found under Title 50 Part 10.13 (10.13 list), which was last updated in 2020 to incorporate current scien0fic informa0on on taxonomy and natural distribu0on. The MBTA applies to almost all avian species that are na0ve to California.
A migratory bird species is included on the list if it meets one more of the following criteria:
4 As used in this report, “special-status” refers to plant and wildlife species that are federally, State, and MSHCP listed, proposed, or candidates; plant species that have been designated with a California Na6ve Plant Society Rare Plant Rank; wildlife species that are designated by the CDFW as fully protected, species of special concern, or watch list species; and specially protected natural vegeta6on communi6es as designated by the CDFW.
5 A soil series is defined as a group of soils with similar profiles developed from similar parent materials under comparable clima6c and vegeta6on condi6ons. These profiles include major horizons with similar thickness, arrangement, and other important characteris6cs, which may promote favorable condi6ons for certain biological resources. 625
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 86 1. It occurs in the United States or U.S. territories as the result of natural biological or ecological processes and is currently, or was previously listed as, a species or part of a family protected by one of the four interna0onal trea0es or their amendments.
2. Revised taxonomy results in it being newly split from a species that was previously on the list, and the new species occurs in the United States or U.S. territories as the result of natural biological or ecological processes.
3. New evidence exists for its natural occurrence in the United States or U.S. territories resul0ng from natural distribu0onal changes and the species occurs in a protected family.
The Migratory Bird Treaty Reform Act amends the MBTA so that nonna0ve birds or birds that have been introduced by humans to the United States or its territories are excluded from protec0on under the MBTA.
Most birds found in southern California are protected under the MBTA.
California Fish and Game Code
The California Fish and Game Code is composed of various statutes that aid in the protec0on of biological resources, including Na0ve Plant Protec0on Act (NPPA) of 1977 and the California Endangered Species Act (CESA) (California Fish and Game Code Sec0ons 2050-2098). The NPPA designated plants as rare or endangered and prohibits the take of any such plants, unless authorized in limited circumstances by the Fish and Game Commission. CESA prohibits public agencies from approving projects that could jeopardize species listed under CESA as endangered or threatened. In addi0on, California Fish and Game Code protects na0ve and migratory birds including nests and eggs in addi0on to protec0ng various mammals (Sec0on 4700), amphibians (Sec0on 5050), and fish species (Sec0on 5515). For this reason, California Fish and Game Code requires that California Department of Fish and Wildlife be no0fied of lake or streambed altera0on ac0vi0es. If ac0vi0es are determined to adversely affect exis0ng fish and wildlife resources by CDFW, a streambed altera0on agreement must be authorized to ensure the protec0on of biological resources and water quality.
City of Ontario Municipal Code
Sec0on 10-2 (Chapter 2) of the Ontario Municipal Code addresses tree protec0on, maintenance, and replacement policies for trees (mostly publicly owned). The following Sec0ons of Ontario’s Development Code, discuss tree mi0ga0on pertaining to new development:
- Heritage Tree Preserva.on: As indicated within Ontario’s Development Code, the term "Heritage Tree" means a tree designated for preserva0on pursuant to Sec0on 4.02.060 (Historic Preserva0on—Historic Landmark and District Designa0ons, and Architectural Conserva0on Areas), as a tree of historic or cultural significance, or a tree of importance to the community due to any one of the following factors:
a) It is one of the largest or oldest trees of the species located in the City with a trunk diameter of 18 inches or greater at diameter breast height (DBH); or
b) It has historical significance due to an associa0on with an historic building, street, person, or event; or c) It is defining landmark or significant outstanding feature of a neighborhood or district, or typical of early Ontario landscape, including:
- Cinnamomum camphora (Camphor Tree),
- Cedrus deodara (Deodar Cedar),
- Platanus acerifolia (London plane),
- Quercus suber (Cork Oak),
- Quercus ilex (Holly Oak), or
- Schinus molle (Palifornia Pepper); or
d) It is a Na0ve Tree. The term “Na0ve Tree” means any one of following California na0ve tree, which has a trunk diameter of more than 8 inches, measured DBH including:
626
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 87 - Platanus racemosa (California Sycamore),
- Pinus torreyana (Torrey Pine),
- Quercus agrifolia (Coast Live Oak),
- Quercus engelmannii (Engelmann Oak),
- Quercus lobata (Valley Oak), or
- Umbellularia californica (California Bay).
- Heritage Tree Replacement: Healthy Heritage Trees that are approved for removal shall be replaced with new trees and shall be shown on required Landscape and Irriga0on Construc0on Documenta0on Plans. Replacement trees shall have a total trunk diameter (caliper) equal to the tree(s) removed, or as deemed appropriate by the Approving Authority based on the lot size and available plan0ng space. Replacement trees shall be in addi0on to the quan0ty of trees required by the Planning Department for landscaping (see Sec0on 6.05.035 (Landscape Development Standards) for required trees).
- Parkway Trees Removal: No person shall remove or relocate any parkway tree (parkway shall mean that por0on of any public street ROW between the ROW boundary line and the curb line and between curbs for the median) without prior authoriza0on from the Public Works Agency of the City. A parkway tree may be removed by the City for any of the following reasons:
a) Visual hazard. Obstruc0ng sight distance necessary for the safe opera0on of vehicles at street intersec0ons or obscuring in an otherwise incurable manner any traffic or railroad crossing signal or other safety device.
b) Safety hazard. Any condi0on deemed to be an immediate hazard to life or property which cannot otherwise be corrected.
c) Condi0on. Dead, decayed, or diseased beyond correc0on. d) Unauthorized. Planted without a permit, improper loca0on or variety, or prohibited type. e) Where the removal is necessary to reasonably u0lize solar collectors, and:
i. Thirty (30) days prior to installa0on of the solar collectors, the City was no0fied in wri0ng of the intent to install such collectors;
ii. The solar collectors, where possible, are located so that no street tree removal is required; and
iii. The removal of such tree or trees will not be detrimental to the public.
4.2 Exis6ng Condi6ons
The Project is within a fully urbanized area where there is no na0ve habitat; exis0ng ornamental landscaping within the APE provides habitat for species that have acclimated to urban environments with high levels of ac0vity. The Project is not located in a mi0ga0on fee area for endangered species. The following paragraphs provide a descrip0on of exis0ng condi0ons for biological resources within the Local Vicinity of the Project based on a field survey conducted by a qualified biologist.
Vegeta6on and Trees
Exis0ng plants within the Parkways along Euclid Avenue consist of landscaping within the center median of Euclid Avenue and within landscaping along the back of the sidewalks. Soils in the APE have been mechanically disturbed, amended, and heavily compacted from decades of urbaniza0on and agriculture. Plant species observed within the Parkways include Peruvian pepper (Schinus molle), rose (Rosa spp.), lantana (Lantana sp.), southern magnolia (Magnolia grandiflora), London plane tree (Planatus acerifolia), and jacaranda (Jacaranda mimosifolia). According to the Tree Survey and Arborist Report prepared by CalPacific, a total of 729 trees were surveyed within the APE for the Project and 379 of the trees qualify as Heritage Trees. The arborist’s report indicates that 163 trees (approximately 22%) of the trees that were surveyed for the Project show signs of disease/decline, lack adequate vigor, or show poor growth form/branch a@achment posing an elevated risk of failure, thereby necessita0ng considera0on for removal. Ten (10) of these trees were noted as posing an 627
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 88 immediate hazard requiring urgent a@en0on due to the failure risk they pose to nearby vehicular and pedestrian traffic. Many of the silk oak trees along the Euclid Avenue corridor contain canopies that obscured observa0on of structural defects; these trees are Heritage Trees and known for their weak wood strength (UFEI 2024).
In areas adjacent to E. Riverside Avenue south of the ROW along the edge of the agricultural fields, marginal habitat for primary successional, weedy, and invasive plant species are present and include curly dock (Rumex crispus), ripgut brome (Bromus diandrus), horseweed (Erigeron canadensis), telegraph weed (Heterotheca grandiflora), prairie sunflower (Helianthus pe.olaris), and pigweed (Amaranthus sp.). Landscaping found within the APE and Local Vicinity has the poten0al to provide suitable nes0ng habitat for year-round and seasonal avian residents, as well as migra0ng songbirds that could occur in the area that are adapted to urban environments.
Wildlife
The field survey for the Project indicates no amphibians or hydrogeomorphic features (e.g., creeks, ponds, lakes, reservoirs) are in the APE or Local Vicinity. The APE provides minimal habitat for foraging and cover. The only rep0le species observed during the field inves0ga0on was western fence lizard (Sceloporus occidentalis). Avian species observed during the field inves0ga0on include rock pigeon (Columba liva), house finch (Haemorhous mexicanus), mourning dove (Zenaida macroura), house sparrow (Passer domes.cus), and American crow (Corvus brachyrhynchos). No ac0ve nests or birds displaying nes0ng behavior were observed during the field survey, which was conducted during the breeding season. No mammalian species were observed.
Research for the Project from the California Natural Diversity Database (CNDDB) and California Na0ve Plant Society’s (CPNS) Electronic Inventory iden0fied twenty (20) special-status plant species, fiFy-seven (57) specialstatus wildlife species, and one (1) special-status plant community as having poten0al to occur within the San Bernardino South USGS 7.5-minute quadrangle where the Project is located. The biologist surveyed the APE and Local Vicinity for presence of special-status plant and wildlife. The biologist’s field survey documents no special status plants or wildlife were observed within the APE or Local Vicinity. FiFy-five (55) special-status species are presumed absent with no suitable habitat present within the APE or Local Vicinity and, two species have low poten0al for being found within the APE and Local Vicinity. (See Appendix B).
According to the San Bernardino County General Plan, the Project has not been iden0fied as occurring within a wildlife corridor or linkage. As designated by the San Bernardino County General Plan Open Space Element, the nearest major corridor or linkage documented in the vicinity of the Project is approximately 4.51 miles to the southwest in associa0on with Chino Hills State Park.
Wetland
The APE and Local Vicinity do not support any riparian habitat, inundated areas, wetland features, or hydric soils that would be considered jurisdic0onal by the Corps, Regional Board, or CDFW. A query of the NWI database found no poten0al blueline streams, riverine, or other aqua0c resources in the APE or Local Vicinity. The Project, APE, and Local Vicinity are in an urban seVng. Review of USFWS Na0onal Wetland Inventory (NWI) and Environmental Protec0on Agency (EPA) Water Program “My Waters” data layers and the field survey for the confirmed that no wetlands are near or adjacent to the Project.
4.3 Project Impacts
a) Have a substanal adverse effect, either directly or through habitat modificaons, on any species idenfied as a candidate, sensive, or special status species in local or regional plans, policies, or regulaons, or by the California Department of Fish and Game or U.S. Fish and Wildlife Service?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. Poten0ally significant direct impacts from the Project could occur from trimming or removing trees or landscaping with ac0ve nests. Poten0ally significant indirect impacts 628
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 89 could occur from construc0on ac0vi0es and elevated noise and ac0vity levels within proximity to ac0ve nests.
The Project will install tree replacements and will restore disturbed landscaped areas to pre-project condi0ons therefore, the Project has the poten0al during construc0on to directly and indirectly impact nes0ng birds which are protected under the MBTA and California Fish and Game Code. For this reason, the Project shall implement Mi0ga0on Measure MM BIO-01: Preconstruc/on Nes/ng Bird Clearance Survey, which will require a preconstruc0on bird nes0ng survey to reduce poten0ally significant temporary impacts on nes0ng birds to less than significant levels.
For the reasons above, Project impacts are an0cipated to be reduced to less than significant levels with the implementa0on of Mi0ga0on Measure MM BIO-01: Pre-construc/on Nes/ng Bird Clearance Survey.
MITIGATION:
MM BIO-01: Preconstruc.on Bird Nes.ng Clearance Survey.
b) Have a substanal adverse effect on any riparian habitat or other sensive natural community idenfied in local or regional plans, policies, regulaons or by the California Department of Fish and Game or U.S.
Fish and Wildlife Service?
DISCUSSION OF EFFECTS:
No Impact. Due to absence of riparian habitat and natural communi0es within the APE and Local Vicinity, the Project will not result in direct impacts to wetland or riparian resources under Corps, Regional Board, or CDFW jurisdic0on. The Project will be limited to developed and disturbed public ROW. Regular City maintenance will include sprinkler checks to reduce overspray and runoff. The Project will implement temporary BMPs for water quality pursuant the standard applica0on of Ontario’s Municipal Storm Water Permit for Construc0on. This will prevent indirect impacts downstream from Project construc0on on riparian habitat or other sensi0ve natural communi0es and beneficial uses of receiving waters. Therefore, the Project would not contribute addi0onal erosion, silta0on, or pollutants in surface runoff through standard enforcement of Ontario’s Municipal Storm Water Permit for Construc0on. AFer construc0on, disturbed surfaces will be returned to pre-project condi0ons.
As a result, impacts are not an0cipated. No Mi0ga0on Measures are needed.
MITIGATION:
None required.
c) Have a substanal adverse effect on state or federally protected wetlands (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interrupon, or other means? DISCUSSION OF EFFECTS:
No Impact. The Project will not have direct impacts on wetlands under state or federal jurisdic0on. There are no wetlands within the APE and Local Vicinity. Temporary water quality BMPs have been incorporated into the MMRP for the Project for erosion control and reduced runoff from construc0on areas. Water quality BMPs are also intended to prevent discharge of pollutants, dissolved solids and debris into surface waters so that Project implementa0on will have no impact on receiving waters during construc0on. The Project will not change longterm opera0ons of the City’s parks and open space and there are no impacts in this regard. BMPs are required so that downstream resource impacts will be less than significant and are implemented through the standard applica0on of the City’s plan check and inspec0on process for compliance with the Municipal Storm Water Permit for Construc0on issued by the Regional Water Quality Control Board. BMPs and mi0ga0on measures for the Project are included in the MMRP (MM HYDRO-01: SWPPP and MM HYDRO-02: Limita/on on Construc/on During Storm Events) to verify implementa0on of water quality protec0ons during Project construc0on.
Therefore, no impacts to wetlands are an0cipated; and, no addi0onal Mi0ga0on Measures are needed.
MITIGATION:
MM HYDRO-01: SWPPP and MM HYDRO-02: Limita6on on Construc6on During Storm Events
629
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 90 d) Interfere substanally with the movement of any nave resident or migratory fish or wildlife species or with established nave resident or migratory wildlife corridors, or impede the use of nave wildlife nursery sites?
DISCUSSION OF EFFECTS:
Less Than Significant Impact with Mi.ga.on Incorporated. The Project will not directly impact movement of any na0ve resident or migratory fish or wildlife species. The Project is proposed within a fully urbanized area and does not require permanent changes to the opera0on and maintenance of the City’s parks and open space or significant changes to land use or above ground structures. Project construc0on will impact 60-80 LF within the APE daily. Ten (10) tree removals/replacements following a bird nes0ng survey in the APE are proposed; indirect impacts from pollutants in runoff and temporary exhaust and noise from construc0on will be isolated within the APE due to implementa0on of the MMRP. For the reasons above, the Project will not significantly impact established corridors for regional wildlife, riparian, or creek corridors and linkages. There will be no direct or indirect impacts on these resources or on wildlife movement opportuni0es.
The MMRP for the Project will enforce erosion and sediment control, waste management, runoff control, and pollu0on control to reduce impacts to any natural resources. The Project will implement Best Management Prac0ces and Mi0ga0on Measures for water quality (MM HYDRO-01: SWPPP and MM HYDRO-02: Limita/on on Construc/on During Storm Events). As a result, the Project an0cipates less than significant impacts with the implementa0on of mi0ga0on measures. The Project will also comply with the MBTA.
MITIGATION:
MM HYDRO-01: SWPPP and MM HYDRO-02: Limita.on on Construc.on During Storm Events
e) Conflict with any local policies or ordinances protecng biological resources, such as a tree preservaon policy or ordinance?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. The Project has been designed to place the proposed mains and laterals where they will avoid most tree root zones in the APE. Tree maintenance that is proposed within Segments 1, 2, and 6 of the APE includes replacement of ten (10) CDF Heritage Trees within the median and parkway of Euclid Avenue and one (1) Heritage Tree south of W. Flora Avenue at James R Bryant Park, consistent with Ontario’s Municipal Code. The MMRP for the Project will be implemented throughout construc0on and requires qualified arborist monitoring of trees and roots during construc0on and aFer construc0on. Plans for the Project indicate replacement tree species that are consistent with the Ontario Municipal Code. Post tree monitoring is a requirement of the MMRP for trees that are replanted and trimmed during construc0on.
Project compliance with Ontario’s tree preserva0on policies and ordinances is further discussed in Sec.on 1, Aesthe.cs and depicted in Table 7: Tree Maintenance Recommenda/ons and on Figure 2A Local Vicinity.
Mi0ga0on measures MM AES-01 through AES-05 of the MMRP require monitoring by a qualified arborist and archaeologist for compliance with Ontario’s Municipal Code regarding protec0on and preserva0on of Heritage Trees and trees that may be historically significant. The MMRP requires compliance with Ontario standards for tree protec0on through arborist monitoring during tree trimming to protect the cri0cal root zone of trees within the APE during construc0on; qualified arborist oversight of replacement trees during plan0ng and during three years of maintenance aFer construc0on is also required by the MMRP for the Project.
MITIGATION:
MM AES-01: Cer.fied Arborist,
MM AES-02: Tree Protec.on During Construc.on,
MM AES-03: Tunneling,
MM AES-04: Hydro Excava.on,
MM AES-05: Tree and Landscaping Replacement Plan, and
MM BIO-01: Preconstruc.on Bird Nes.ng Clearance Survey. 630
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 91 f) Conflict with the provisions of an adopted Habitat Conservaon Plan, Natural Community Conservaon Plan, or other approved local, regional, or state habitat conservaon plan?
DISCUSSION OF EFFECTS:
No Impact. There are no natural habitat conserva0on plans applicable to the APE or Local Vicinity. The Project will comply with Ontario’s Municipal Code.
MITIGATION:
None required.
g) Have a substanal adverse effect, either directly or through habitat modificaons, on any species idenfied as a candidate, sensive, or special status species in local or regional plans, policies, or regulaons, or by the California Department of Fish and Game or U.S. Fish and Wildlife Service? DISCUSSION OF EFFECTS:
No Impact. The Project will be implemented in currently developed City ROW. A pre-construc0on bird nes0ng survey is required by the MMRP for compliance with the MBTA; there will be no direct impacts on habitat for candidate, sensi0ve, or special status species. An MMRP has been prepared for the Project and includes requirements for a SWPPP so that Project construc0on will not have indirect impacts.
MITIGATION:
None required.
631
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 92 5. CULTURAL RESOURCES
The informa0on in this sec0on is based on a records search and intensive-level field survey. The records search was conducted on January 23, 2024, at the South Central Coastal Informa0on Center (SCCIC) at California State University, Fullerton. This archival research reviewed the status of all recorded historic and prehistoric cultural resources and survey and excava0on reports completed within one-half mile of the Project. Addi0onal resources reviewed include the Built Environment Resource Directory (BERD), which summarizes California Office of Historic Preserva0on (OHP) findings for resources listed and eligible for lis0ng in the NRHR and the CRHR. An intensive-level cultural resources field survey of the APE was conducted on February 8, October 14, and November 1, 2024. Cultural Resources were recorded on DPR 523 forms and are included in Appendix D, Cultural Resources Assessment for the Euclid Avenue Recycled Water System Project, Prepared by BCR Consul0ng LLC and Dates December 27, 2024. Digital photographs were taken at various points along the Project. These include overviews as well as detailed photographs of all cultural resources. Cultural resources were recorded per the California OHP Instruc0ons for Recording Historical Resources in the field using:
• Detailed note taking for entry on DPR Forms (see Appendix D) • Hand-held Garmin Global Posi0oning systems for mapping purposes • Digital photographic overviews and photographs of all cultural resources (see Appendix D).
5.1 Regulatory Compliance
California Public Resources Code 15064.5
CEQA calls for the evalua0on and recorda0on of historic and archaeological resources within California Public Resources Code (PRC) Sec0on 15064.5. Criteria for determining significance of impacts to cultural resources are based on Sec0on 15064.5 of the CEQA Guidelines and Guidelines for the Nomina0on of Proper0es to the CRHR.
Proper0es eligible for lis0ng in the CRHR, and subject to review under CEQA, are those mee0ng the criteria for lis0ng in the CRHR, or designa0on under a local ordinance. The following regula0ons are applicable to cultural resources that could be found in the APE:
California Code of Regula0ons Title 14 Subsec0on 15064.5 (a) is the CEQA sec0on that generally defines historically significant cultural resources as any object, building, structure, site, area, place, record, or manuscript which is:
• A resource listed or eligible for lis0ng by the State Historical Resources Commission, for lis0ng in the CRHR;
• A resource included in a local register of historical resources, as defined in sec0on 5020.1(k) of the Public Resources Code, or iden0fied as significant in an historical resource survey mee0ng the requirements sec0on 5024.1(g), (listed as historical by local ordinance); and, • A resource that a Lead Agency determines to be historically significant.
California Code of Regula0ons §15064.5 (a)(3) rela0ng to impacts on historical resources pertains to environmental changes impac0ng any object, building, structure, site, area, place, record, or manuscript associated with:
• Events that have made a significant contribu0on to the broad pa@erns of California's history and cultural heritage.
• The lives of persons important in our past.
• The dis0nc0ve characteris0cs of a type, period, region, or method of construc0on, or represents the work of an important crea0ve individual, or possesses high ar0s0c values. • Resources which have yielded, or may be likely yield, informa0on important in prehistory or history. 632
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 93 CEQA Statute (PRC Sec6on 21083.2)
CEQA Sec0on 21083.2 requires that the CEQA Lead Agency determine whether a project may have a significant effect on unique archaeological resources. A unique archaeological resource is defined as an archaeological ar0fact, object, or site about which it can be clearly demonstrated that there is a high probability that it:
• Contains informa0on needed to answer important scien0fic research ques0ons, and there is demonstrable public interest in that informa0on;
• Has a special or par0cular quality, such as being the oldest of its type or the best available example of its type; or
• Is directly associated with a scien0fically recognized important prehistoric or historic event or person.
California Register of Historical Resources (PRC Sec.on 5024.1(d)(1)) Proper0es that are listed in or eligible for lis0ng in the NRHP pursuant to Sec0on 106 of the NHPA are considered eligible for lis0ng in the CRHR if they meet one or more of the NRHP criteria listed above and are of “historic age.” The CRHR requires that sufficient 0me has passed since a resource’s period of significance to “obtain a scholarly perspec0ve on the events or individuals associated with the resources.” (CCR 4852 [d][2]). FiFy years is normally considered sufficient 0me. In order that the evalua0on remain valid for a minimum of five years, all resources older than 45 years are considered historic-age resources requiring evalua0on for CRHR lis0ng eligibility and CEQA significance. The CRHR also requires that a resource possess integrity, which is defined as the ability for the resource to convey its significance through seven aspects: loca0on, seVng, design, materials, workmanship, feeling, and associa0on.
California Health and Safety Code Sec.on 8100
Sec0on 8100 of the California Health and Safety Code defines a cemetery as six or more human burials at one loca0on. Disturbance of Na0ve American cemeteries is a felony (Health and Safety Code Sec0on 7052). Sec0on 7050.5 of the Health and Safety Code requires that if human remains are found during construc0on or excava0on, the ac0vi0es be stopped un0l the county coroner can determine if the remains are Na0ve American.
If the remains are determined to be Na0ve American, the coroner must then contact the Na0ve American Heritage Commission, which has jurisdic0on pursuant to PRC Sec0on 5097.
City of Ontario Municipal Code
Historic Preserva.on: The City of Ontario Development Code Sec0on 4.02.060. Historic Preserva0on and District Designa0on and Architectural Conserva0on Areas provides the following designa0on criteria for a property to qualify as a City Historic Landmark:
a) It exemplifies or reflects special elements of the City’s history; b) It is iden0fied with persons or events significant in local, state, or na0onal history; c) It is representa0ve of the work of a notable builder, designer, architect, or ar0st; d) It embodies dis0nguishing architectural characteris0cs of a style, type, period, or method of construc0on; e) It is a noteworthy example of the use of indigenous materials or craFsmanship; f) It embodies elements that represent a significant structural, engineering, or architectural achievement or innova0on;
g) It has a unique loca0on, a singular physical characteris0c, or is an established and familiar visual feature of a neighborhood, community or the City;
h) It is one of the few remaining examples in the City, region, state, or na0on possessing dis0nguishing characteris0cs of an architectural or historical type or specimen; or i) It has yielded, or is likely to yield, informa0on important to the City’s history or prehistory.
Local Historic District: A neighborhood or area listed as a historic resource may be designated a “Local Historic District” by Ontario if the neighborhood meets the criteria for lis0ng in the Na0onal Register or the California Register, or it meets one or more of the following criteria:
633
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 94 a) It is a geographically definable area possessing a concentra0on of historic resources or a thema0cally related grouping of structures that contribute to each other and are unified by plan, style, or physical development, and embodies the dis0nc0ve characteris0cs of a type, period, region, or method of construc0on, or represents the work of a master or possesses high ar0s0c values; b) It reflects significant geographical pa@erns, including those associated with different eras of se@lement and growth, par0cular transporta0on modes, or dis0nc0ve examples of a park landscape, site design, or community planning;
c) It is associated with, or the contribu0ng resources are unified by, events that have made a significant contribu0on to the broad pa@erns of local or regional history, or the cultural heritage of California or the United States;
d) It is, or the contribu0ng resources are, associated with the lives of persons important to the City, State or Na0onal history.
For cultural resources to be considered for evalua0on for the above criteria. In addi0on to landmark and district designa0on criteria, historic resources must have integrity for the 0me in which they are significant. The period of significance is the date or span of 0me within which significant events transpired or when significant individuals made their important contribu0ons. The term integrity means the authen0city of a historical resource’s physical iden0ty, as evidenced by the surviving characteris0cs or historic or prehistoric fabric that existed during the resource’s period of significance including design, seVng, materials and workmanship, loca0on, feeling, and associa0on.
Designated City of Ontario Historic Districts
The following areas are official historic districts that are recognized by the City of Ontario. Improvements within the boundaries of historic districts are subject to site plan review and approval by Ontario for compliance with local policies and codes that are established for preserva0on of historical resources:
Designated City of Ontario Euclid Avenue Historic District: Although Euclid Avenue comprises the central feature of this district, Euclid Avenue ROW is individually documented below as a Historical Property on the NRHR and CRHR and is subject to HPTMP requirements. The Euclid Avenue Historic District contains the por0on of Euclid Avenue bounded by G Street on the South and I-10 on the north. The Project coincides with this district from G Street in the south to 4th street near Chaffey High School at the northern terminus. CDF of the district include the 60-foot-wide landscape median, parkway trees, scored sidewalks, granite cobblestone curbs, streetlights, and front yard setbacks and open space. This historic district includes 102 proper0es consis0ng of historic-age buildings of which 75 are contributors to the district.
Euclid Avenue: Euclid Avenue is an eight-mile-long, roughly 200-foot-wide street with two lanes of traffic in both direc0ons within the APE. The northbound and southbound sides are divided by an approximate 60-foot-wide landscaped median. Rows of trees, mainly pepper trees and palms, were originally planted along much of its length. The segment of the street stretching from the railroad tracks just south of Transit Street northward to 4th Street (where the Project is located) was constructed between 1882 and 1884 under the supervision of George and William Chaffey. It has served as Ontario’s main thoroughfare since that 0me and has garnered interna0onal praise as an early and excep0onal example of landscape architecture and irriga0on colony community planning.
Euclid Avenue remains a vital and celebrated route through the ci0es of Ontario and Upland. It was listed in both the NRHR and the CRHR on August 10, 2005, as occupying its current alignment between Philadelphia Street in Ontario and 24th Street in Upland (California Office of Historic Preserva0on 2020). It is also City of Ontario Designated Historic Landmark No. 67 (City of Ontario 2012). The segment of Euclid Avenue between G Street and I-10 is a contributor to the Designated Euclid Avenue Ontario Local Historic District, and the segment between G Street and the railroad overpass is a contributor to the proposed Downtown Ontario Local Historic District. Due to its lis0ng on the NRHR, CRHR and its status as a district contributor on the local level, it qualifies as a historical resource under CEQA. Ontario has recently adopted the Euclid Avenue Historic Property 634
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 95 Treatment and Maintenance Plan within the Municipal Code to enforce requirements for maintenance and preserva0on of all character-defining features of Euclid Avenue.
Proposed City of Ontario Historical Districts
The following addi0onal historic districts are under considera0on by Ontario. These are not officially designated; however, these areas contain street trees and granite cobblestone curbs, both of which have been determined character defining features of designated districts elsewhere.
Poten.al Downtown West Addi.on Local Historic District: Ontario has depicted this poten0al district between West Flora Street on the north, West Vesta Street on the south, Vine Avenue on the east, and Beverly on the west. Along W. Flora Street between N. Vine Avenue on the east and at the western terminus, at James R. Bryant Park, the Project coincides with this poten0al district.
Proposed Downtown Historic District: Ontario has depicted this proposed district between N. Lemon Avenue on the east, N. Laurel Avenue on the west, W. G Street on the north, and the railroad overpass on the south. The Project coincides with this proposed district on Euclid Avenue from E. B Street in the south to the district’s northern terminus at E. G Street. The Project also crosses this district on W. F Street from Euclid Avenue on the east to N. Laurel Avenue on the west. The Euclid Avenue Mule Car and Tracks (P-36-15983) is also located within this designated historic district.
Proposed Downtown West Historic District. Ontario has depicted this proposed district between N. Laurel Avenue on the east, N. Vine Avenue on the west, W. G Street on the north, and C Street on the south. The Project coincides with this proposed district on F Street between Laurel Avenue on the east and Vine Avenue on the west.
5.2 Exis6ng Condi6ons
Background
George and William Chaffey purchased part of Rancho Cucamonga during the mid-1800’s, aFer the Mexican government granted the 12,000-acre Rancho de Cucamonga to Tiburcio Tapia. During this 0me, Americans began to se@le in the west in large numbers due to the Gold Rush and the Chaffey Brothers began to develop E0wanda, where they tested their irriga0on and town planning ideas. They constructed Euclid Avenue as the main thoroughfare and later, they purchased an addi0onal 6,000 acres, which later became the City of Ontario.
Euclid Avenue: Euclid Avenue is listed on both the NRHR and the CRHR; it is also documented in The Ontario Plan as a resource of historical importance to Ontario. Addi0onal standards for ongoing protec0on of Euclid Avenue and the “character defining features”, CDF, together make the ROW historically significant, such as Heritage Trees, rose beds, historic-age structures, historical community structures, have recently been incorporated into Ontario’s Municipal Code. Therefore, Euclid Avenue is considered a Historical Resource under CEQA and is protected as such in Ontario’s Municipal Code. It was originally determined eligible for the NRHR on October 25, 1977, under Criterion C for being a “significant example of landscape architecture, community planning and as a transporta0on facility” (Smith and Wlodarski 1994). In April 2024 Ontario accepted the relinquishment of Euclid Avenue within city limits from Caltrans and now Ontario is responsible for maintenance of Euclid Avenue according to SOIS standards in perpetuity. Based on observa0ons made during the field visit and substan0al background research, BCR verified that Euclid Avenue remains intact within the APE for the Project. Under exis0ng condi0ons, CDF are not con0nuous and are found throughout the APE. The following informa0on was provided for resources within the Euclid Avenue ROW, P-36-15982 (Euclid Avenue); P-36-15983 (Historic Period Mule Car and Railroad Tracks); and P-36-16417 (Historic-Period Mission Road):
- P-36-15982. Euclid Avenue is an eight-mile-long, roughly 200-foot-wide street with two lanes of traffic in both direc0ons (Alexander 2005; City of Ontario, CA 2022). The northbound and southbound sides are divided by a 60-foot-wide landscaped median. Rows of trees, mainly pepper trees and palms, were 635
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 96 originally planted along much of the length of Euclid AVenue. The segment of the street stretching from the railroad tracks just south of Transit Street northward to 24th Street (containing the Project) was constructed between 1882 and 1884 under the supervision of George and William Chaffey. It has served as Ontario’s main thoroughfare since then and has garnered interna0onal praise as an early and excep0onal example of landscape architecture and irriga0on colony community planning. Today, it remains a vital and celebrated route through the ci0es of Ontario and Upland. Euclid Avenue is listed in the Na0onal Register and as such qualifies as a historical resource under CEQA. - P-36-15983. The Euclid Avenue Mule Car and railroad tracks comprised a trolley car system that ran down the center of the street’s median (Department of Parks and Recrea0on 1974; City of Ontario ca. 2020). It was first developed in 1887. Two trolly cars were used on it, each pulled by a single mule up the hill towards 24th Street. At the north end of the line, the mule would be loaded onto a trailer at the back of the car, and it would descend the hill to the south end of the track using gravity and a brake system. Electric trollies replaced the mule-powered ones in 1896. The line was completely removed some0me in the early to mid-twen0eth century. A small museum featuring a reconstruc0on of one of the mule car trollies was placed in the Euclid Avenue median just south of its intersec0on with E. B Street (immediately west of the Project Alignment). This resource was listed as a California Point of Historical Interest in 1974 (Reg. No. SBr-033) but was subsequently found ineligible for the NRHP. - P-36-16417. The San Bernardino-Sonora Road was a northern segment of the Emigrant Trail (Department of Parks and Recrea0on 1973). During the period between 1822 and 1827 priests from the San Gabriel Mission travelled the road on their way to the San Bernardino Asistencia. In 1827, Jedidiah Smith used the path to make his way out of southern California. Today, W. J Street is roughly in the loca0on of the original road where it would have intersected with Euclid Avenue. However, no traces of it remain. Formal eligibility evalua0on of the road has not taken place in the APE.
Euclid Avenue Historic District (4th Street to E. Holt Blvd.): The APE consists of paved or developed ROW. There are numerous CDF throughout the median and side parkways of the APE; these are depicted on Table 6: Project Components (APE) and in Figure 2A: Northern Por/on Local Vicinity Map. CDF in the APE include eight (8) trees along Euclid Avenue ROW that are in poor health as documented in the Tree Survey and Arborist Report (see Appendix D). The Local Vicinity is fully developed with mixed-use, residen0al, commercial, and ins0tu0onal proper0es. Historic resources are listed in Table 15: Cultural Resources Within One-half Mile of the Project Area.
Proposed Downtown West Historic District (F Street):
Proposed Downtown Historic District: (Euclid Avenue between E. B Street and E. G Street. This district includes the F Street/Euclid Avenue intersec0on, and Mule Car and Tracks (P-36-15983)).
Records Search Data
Results from the records search indicate that 23 previous cultural resource studies have taken place, and 29 cultural resources have been iden0fied within a half-mile radius of the Project, see Table 15: Cultural Resources within One-Half Mile of the Project Area.
636
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 97 TABLE 15: CULTURAL RESOURCES WITHIN ONE-HALF MILE OF THE PROJECT AREA USGS 7.5 Min Quad Primary No. Resource Descrip6on Within Project Studies Within One-Half Mile
Guas6 (1981),
Ontario (1981)
P-36-10330 Union Pacific Railroad 0.2 Miles S SB-80, 295, 307, 324, 800, 2795,
2796, 3248, 3560,
4500, 4678*,
4683*, 5713,
5716, 5723*, 5874,
5976, 6929, 7075,
7300, 7301, 7732,
7886
P-36-13230 Historic-Period Residence 0.3 Miles S
P-36-13231 Historic-Period Residence 0.3 Miles S
P-36-13232 Historic-Period Residence 0.4 Miles S
P-36-13233 Historic-Period Residence Adjacent S
P-36-13234 Historic-Period Residence 0.1 Miles S
P-36-13235 Historic-Period Residence Adjacent S
P-36-13236 Historic-Period Residence 0.35 Miles S
P-36-13237 Historic-Period Residence Adjacent S
P-36-13238 Historic-Period Residence 0.1 Miles S
P-36-13239 Historic-Period Residence Adjacent S
P-36-13240 Historic-Period Residence 0.1 Miles S
P-36-13241 Historic-Period Residence 0.2 Miles E
P-36-13242 Historic-Period Residence 0.3 Miles E
P-36-13243 Historic-Period Residence 0.25 Miles E
P-36-13244 Historic-Period Residence 0.45 Miles SE
P-36-15862 Historic-Period Dietz Garage 0.1 Miles SE
P-36-15980 Euclid Ave RR Proper6es Adjacent to S Side
P-36-15980 Historic- Per. DeAnza Pk. Marker 0.2 Miles S P-36-15982 Euclid Avenue* --
P-36-15983 Historic-Period Mule Car and
Railroad Tracks*
0.2 Miles S
P-36-16070 Chaffey High School Auditorium 0.1 Miles W
P-36-16074 Chaffey High School Adjacent W
P-36-16083 Historic Period Somerset Hall Adjacent SE
P-36-16223 Historic-Period Frankish Building 0.1 Miles S P-36-16226 Historic-Period Ontario St. Bank 0.2 Miles S P-36-16288 Historic-Period Post Office 0.2 Miles S
P-36-16381 St. George Catholic Church 0.2 Mile W
P-36-16417 Historic-Period Mission Road* --
Source: BCR Consul6ng, 2024
Notes: * Occurred Within the Project Area.
5.3 Project Impacts
The following Discussion is based on a Cultural Resources Assessment conducted by BCR Consulting LLC, dated on March 19, 2024 (see Appendix D), which includes a cultural resources records search, a Sacred Lands File search, and intensive-level pedestrian cultural resources field surveys. David Brunzell M.A., R.P.A, acted as Principal Investigator, provided Project oversight, and authorized the technical report with contributions from BCR Consulting Staff Archeologist Doug Kazmier, B.A.; BCR Consulting Archeological Crew Chief Nicholas Sheptuk, B.A and Staff Archeologist George Brentner, B.A. South-Central Information Center (SCCIC) staff completed the cultural resources records search through its archive at California State University, Fullerton. Mr.
Kazimer completed the field survey.
a) Cause a substanal adverse change in the significance of a historical resource pursuant to § 15064.5? DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. Public Resources Code, Sec0on 5024.1; 14 CCR 15064.5 provides a defini0on of historical resources, which is summarize as follows: (1) A resource listed in, or determined to be eligible by the State Historical Resources Commission, for lis0ng in the California Register of Historical Resources (Pub. Res. Code § 5024.1, Title 14 CCR, Sec0on 14 CCR, Sec0on 4850 et seq.); (2) A resource included in a local register of historical resources, as defined in sec0on 5020.1(k) of the Public Resources Code, “Local Register of Historical Resources” or iden0fied as significant in an historical resource survey mee0ng the 637
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 98 requirements sec0on 5024.1(g) of the Public Resources Code; and, (3) Any object, building, structure, site, area, place, record, or manuscript which a Lead Agency determines to be historically significant or significant in the architectural, engineering, scien0fic, economic, agricultural, educa0onal, social, poli0cal, military, or cultural annals of California
Pursuant to PRC § 15064.5, designated historical resources within the APE include Site P-36-15983 (the historicperiod Euclid Avenue Mule Car and Railroad Tracks) and P-36-16417 (the historic-period San Bernardino-Sonora Road), which are considered destroyed at loca0ons that coincide with the Project; therefore, the Project will not impact these historical resources and there is no mi0ga0on required for Site P-36-15983 (the historic-period Euclid Avenue Mule Car and Railroad Tracks) and P-36-16417 (the historic-period San Bernardino-Sonora Road) under CEQA.
Euclid Avenue ROW (P-36-15982) was iden0fied as being intact within por0ons of the Project APE (Segment 1).
The Project will require earthwork, tree removals/replacements, and trenching within proximity to CDF of Euclid Avenue ROW and will have poten0ally significant impacts during construc0on on P-36-15982 such as removal or damage to granite cobblestone curb and gu@er adjacent to landscape median and parkways, Heritage Trees, scored-masonry sidewalks, vintage streetlights, and community structures in the median including the Bandstand, Women’s Chris0an Union Temperance Drinking Fountain, Veterans Oblisk. The City-adopted HPTMP iden0fies requirements for protec0on and restora0on of these specific CDF for Euclid Avenue ROW so that the overall historical integrity of this resource will be maintained in perpetuity. These requirements have been incorporated into the MMRP for the Project; therefore, impacts from construc0on will be less than significant with mi0ga0on. The Project will support the long-term maintenance of CDF and the overall Euclid Avenue ROW as well as implement mi0ga0on measures during construc0on so that impacts on Euclid Avenue are less than significant.
Areas of ac0ve construc0on that will be closest to the CDF in Segment 1 are where there is the highest poten0al for significant impacts. The construc0on ac0vi0es that are associated with poten0ally significant impacts are trenching, tree removal, pipe construc0on, and earthwork that is closest to east of the Bandstand, on the east side of the median, near E. C Street, where a permanent connec0on between the recycled water system and the exis0ng irriga0on system will be made. Poten0ally significant impacts may also occur during Heritage Tree removals/replacements for Tree #337 and Tree #338 (median north of E. Holt Boulevard), Tree #365 (east side of the median north of E. E Street), Tree #379 (east side of the median, south of E. G Street) Tree #402, Tree #403, and Tree#405(east side of the median south of El Morado Court), Tree #408 (east side of the median south of H Street, and Tree #482 south of E. Granada Court in the easterly parkway of Euclid Avenue. The construc0on footprint for tree removals is es0mated at 20-square-feet and may require temporary removal and replacement of curb, gu@er and sidewalks. As construc0on occurs further away from sensi0ve resources, poten0ally significant impacts are reduced by distance and exis0ng barriers. Significant temporary impacts within the Euclid Avenue median, in the north part of the Project between 4th Street and E. Holt Avenue (Segment 1), will be reduced to less than significant with mi0ga0on from the MMRP for monitoring by the qualified arborist and archaeologist so that Euclid Avenue CDF are maintained pursuant to SOIS standards.
As a result of the above, the Project as proposed is not an0cipated to result in a significant adverse effect to any historical resources.
MITIGATION:
MM CUL-01: Archeological Monitoring, MM CUL-02: Vibra.on Monitoring, MM CUL-03: Worker Environmental Awareness Training, and MM CUL-05: Protec.on and Restora.on of Masonry and Structures, and MM CUL-06: Historic Restora.on.
638
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 99 b) Cause a substanal adverse change in the significance of an archaeological resource pursuant to § 15064.5?
DISCUSSION OF EFFECTS:
Less than Significant with Mi6ga6on Incorporated. Archaeological resources pursuant to § 15064.5 include cultural, historical, and Na6ve American burials in archaeological sites, in addi6on to historic structures, that are considered important cultural resources. These resources require protec6on from disturbance, vandalism, or inadvertent destruc6on, all of which are considered poten6ally significant impacts.
The records search and field survey did not iden6fy cultural resources within the APE for the Project, which has been previously disturbed, and the surfaces are completely covered by pavement and landscaping. The resources recorded during this study and the cultural resources iden6fied in the surrounding area during the records search indicate sensi6vity for buried cultural resources within soils underlying the Project. In addi6on, formal AB52 consulta6on for the Project resulted in iden6fica6on of addi6onal mi6ga6on measures for protec6on, assessment for significance and treatment for cultural and tribal resources found during construc6on. The MMRP for the Project includes Mi6ga6on Measures MM CUL-01: Archeological and Cultural Resources Monitoring, MM CUL-03:
Worker Environmental Awareness Training, MM CUL-04: Human Remains and Funerary Objects, which will be implemented to ensure field personnel are educated on archaeological resources prior to ground disturbances, and an archeological monitor is present during ground disturbing ac6vi6es so that earthworks do not cause significant impacts to archeological resources pursuant to Sec6on 15064.5.
With the implementa6on of Mi6ga6on Measures MM CUL-01: Archeological Monitoring, MM CUL-03: Worker Environmental Awareness Training, and MM CUL-04: Human Remains and Funerary Objects, less than significant impacts are an6cipated.
MITIGATION:
MM CUL-01: Archeological Monitoring.
MM CUL-02: Vibra.on Monitoring.
MM CUL-03: Worker Environmental Awareness Training.
MM CUL-06: Human Remains and Funerary Objects.
c) Disturb any human remains, including those interred outside of dedicated cemeteries?
DISCUSSION OF EFFECTS:
Less than Significant with Mi6ga6on Incorporated. The Project Loca6on has not been used as a cemetery; therefore, the likelihood of discovering human remains at the Project Loca6on is rela6vely low. However, in the unlikely event that human remains are discovered during earthworks, Mi6ga6on Measures MM CUL-04: Human Remains and CUL-06 Cultural Resource Discoveries shall be implemented by the Project contractor to result in less than significant impact.
MITIGATION:
MM CUL-04: Human Remains and Funerary Objects. If human remains are encountered during any project ac6vi6es, State Health and Safety Code Sec6on 7050.5 states that no further disturbance shall occur un6l the County Coroner has made a determina6on of origin and disposi6on pursuant to Public Resources Code Sec6on 5097.98. The County Coroner must be no6fied of the find immediately. If the remains are determined to be prehistoric, the Coroner will no6fy the NAHC, which will determine and no6fy a Most Likely Descendant (MLD).
With the permission of the landowner or his/her authorized representa6ve, the MLD may inspect the site of the discovery. The MLD shall complete the inspec6on within 48 hours of no6fica6on by the NAHC.
639
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 100
6. ENERGY
6.1 Regulatory Compliance
California Energy Commission
The California Energy Commission (CEC) is a planning and policy agency responsible for forecas0ng future energy needs, promo0ng energy efficiency, maintaining energy data, developing energy technology, promo0ng renewable energies, and planning for energy emergencies throughout California. The Title 24 Building Energy Efficiency Standards were developed by the CEC and are updated periodically.
State of California Energy Plan
The CEC is responsible for preparing the State Energy Plan, which iden0fies emerging trends related to energy supply, demand, conserva0on, public health and safety, and the maintenance of a healthy economy. The Plan calls for the state to assist in the transforma0on of the transporta0on system to improve air quality, reduce conges0on, and increase the efficient use of fuel supplies with the least environmental and energy costs. To further this policy, the plan iden0fies strategies, including assistance to public agencies and fleet operators and encouragement of urban designs that reduce vehicle miles traveled and accommodate pedestrians and bicycles. - Renewable PorHolio Standard
California Renewable Poraolio Standard (RPS) was established in 2002 under Senate Bill 1078, requiring “investor-owned u0li0es, electric service providers, and community choice aggregators to increase use of renewable energy resources to 33 percent of total procurement by 2020” (The 2050 Ontario Plan EIR). The State’s electricity grid is transi0oning to renewable energy; and the three largest retail energy companies in California provide 43 percent of service from renewable sources.
Pavley (AB 1493) Regula.ons
California Assembly Bill 1493 enacted on July 22, 2002, required CARB to develop and adopt regula0ons that reduce GHGs emi@ed by passenger vehicles and light duty trucks. In 2005, the CARB submi@ed a “waiver” request to the EPA from a por0on of the federal Clean Air Act to allow the State to set more stringent tailpipe emission standards for CO2 and other GHG emissions from passenger vehicles and light duty trucks. The EPA approved the waiver on June 30, 2009.
City of Ontario Community Climate Ac.on Plan
The City of Ontario adopted the Community Climate Ac0on Plan (CCAP) on December 16th, 2014. The CCAP establishes goals and policies that help to reduce Greenhouse gas emissions from nine sectors including:
“building energy, renewable energy, wastewater treatment, solid waste management, on-road transporta0on, off road equipment, agriculture, water and miscellaneous”. The CCAP will guide Ontario toward an emission reduc0on goal of 30 percent below 2020 business as-usual levels as well as the 30 percent reduc0on goal for 2035 (The 2050 Ontario Plan, 2022). In addi0on, the City of Ontario u0lizes the following assump0ons for the City’s energy analysis:
- On-Road Fuel Use. Fuel use is based on Origin-Des0na0on Method VMT provided by Fehr & Peers (see Sec0on 17, Transporta.on), and modeled using CARB’s EMFAC2021 v.1.0.1 web database and calendar year 2021 (exis0ng) and 2050 fuel usage rates. The VMT provided includes the full trip length for land use in Ontario (origin-des0na0on approach) and a 50 percent reduc0on in the trip length for external-internal/ internal-external trips, consistent with the recommenda0ons of CARB’s Regional Targets Advisory Commi@ee.
- Energy (Natural Gas and Electricity). Emissions associated with natural gas use for residen0al and nonresiden0al land use in Ontario were modeled based on data provided by SoCalGas, and electricity was modeled based on data provided by SCE for the CCAP (see Appendix A). The CCAP is based on year 2019 condi0ons because it more closely reflects Ontario’s GHG targets, and the inventory reflects pre-pandemic condi0ons. Year 2050 forecasts are adjusted for increases in popula0on and employment in Ontario. 640
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 101
6.2 Exis6ng Condi6ons
Electricity within Ontario is provided by Southern California Edison (SCE). In 2020, SCE provided 103,597 gigawa@-hours to their en0re service area (CEC 2022c). From this total, the City of Ontario’s es0mated electricity demand is approximately 1,558,836,470 kWh per year: Approximately 316,529,750 kWh per year for residen0al and 1,242,306,720 kWh per year for nonresiden0al (The 2050 Ontario Plan, 2022). In 2020, Southern California Edison’s sources of energy were derived from “30.9 percent renewable, consis0ng mostly of solar and wind; 3.3. percent large hydroelectric; 15.2 percent natural gas; 8.4 percent natural gas; 8.4 percent nuclear; 0.3 percent other; and 42.0 percent unspecified sources- that is, not traceable to specific sources (CEC 2022d)6. The natural gas provider within the City of Ontario is Southern California Gas Company (SoCalGas). The gas company maintains transmission and distribu0on lines throughout Ontario to serve an es0mated 43.1 million therms per year (The 2050 Ontario Plan, 2022).
6.3 Project Impacts
a) Result in potenally significant environmental impact due to wasteful, inefficient, or unnecessary consumpon of energy resources, during Project construcon or operaon?
DISCUSSION OF EFFECTS:
Less than Significant Impact. Impacts to long-term electricity consump0on would not occur since there will be no new connec0ons to energy sources or generators with the Project. The Project will result in short-term, temporary energy consump0on during construc0on, resul0ng in a single energy demand. Energy demand would fluctuate depending on the various construc0on ac0vi0es; electric-powered construc0on equipment and ligh0ng, would result in minimal electricity usage during construc0on ac0vi0es. CARB’s 2017 Emissions Factors Table (Table 16: 2017 Fuel Consump/on Rate Factors) shows that on average aggregate fuel consump0on (gasoline and diesel fuel) would be approximately 18.5 hp-hr-gal and consume an es0mated 186,342 gallons of diesel fuel. Since the Project is a “single event” diesel fuel demand would not require on-going of permanent commitment of diesel fuel resources for this purpose.
TABLE 16: FUEL CONSUMPTION RATE FACTORS (BHP-HR/GAL)
Category Horsepower/ Applica6on Fuel Consump6on
Non-Mobile Agricultural Engines ALL 17.5
Locomo6ve Line Haul and Passenger (Class I/II) 20.8
Line Haul and Passenger (Class III) 18.2
Other <750 hp 18.5
≥ 750 hp 20.8
Source: CARB 2017
In addi0on, construc0on worker trips are an0cipated to occur from light duty autos (LDA), light duty truck 1 (LDT1), and light duty truck 2 (LDT2) at a mix of 25 percent/ 50 percent/ 25 percent, respec0vely, along area roadways7
. Therefore, it is es0mated that 102, 912 VMT construc0on worker trips will be generated, resul0ng in an es0mated 3,956 gallons of fuel consumed. In addi0on, vendor and hauling during construc0on will generate an es0mated 9,264 VMT; resul0ng in an es0mated 2,111 gallons of fuel from medium to heavy duty vehicles with average fuel consump0on of 7.75 mpg and 6.5 mpg from medium heavy-duty and heavy heavy-duty trucks (see Appendix A, Ganddini, 2024).
6 The electricity sources listed reflect changes aQer the 2013 closure of the San Onofre Nuclear Genera6ng Sta6on, which is owned by SCE. Numbers are rounded up and may cause the total to not add up to exactly 100%. 7 CalEEMod User's Guide Appendix A (April 2022) states that construc6on work trips are made by a fleet consis6ng of 25 percent light-duty auto (or passenger car), 50 percent light-duty truck type 1 (LDT1), and 25 percent light duty truck type 2 (LDT2) (Appendix A, Ganddini, 2024). 641
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 102
Energy demands of the Project would be accommodated within the context of available resources and energy delivery systems. The Project would not cause or result in the need for addi0onal energy produc0on or transmission facili0es. Project ac0vi0es will minimize impacts to electricity consump0on during Project construc0on, through compliance with State, Federal, and local regula0ons (See Sec0on 6.1 Regulatory SeVng) that directly and indirectly reduce energy consump0on as part of greenhouse gas reduc0on plans (See Sec0on
8.3 Greenhouse Gas Emissions).
Diesel-powered off-road construc0on equipment would be required to comply with California Air Resources Board’s (CARB) regarding retrofiVng, repowering, or replacement of diesel off-road construc0on equipment.
CARB has adopted the Airborne Toxic Control Measure to limit heavy-duty diesel motor vehicle idling to reduce public exposure to diesel par0culate ma@er and other Toxic Air Contaminants. Compliance with these measures would result in a more efficient use of construc0on-related energy and would minimize or eliminate wasteful or unnecessary consump0on of energy. Idling restric0ons and the use of newer engines and equipment would result in less fuel combus0on and energy consump0on. These regula0ons require construc0on compliance with Best Available Control Technology requirements and minimiza0on of nonessen0al idling during construc0on to promote fuel efficiency (The 2050 Ontario Plan).
The Project is included with the planned buildout of The Ontario Plan, Ontario’s WMP, and GP EIR and would not result in permanent changes to land use or addi0onal GHG emissions beyond what has been approved in The Ontario Plan. The Project will u0lize energy efficient equipment and will implement BMP that will reduce idling pursuant to SCAQMD regula0ons for air quality; therefore, the Project is not an0cipated to result in significant energy consump0on and would not exceed what has already been evaluated and cer0fied in the GP EIR. Less than significant impacts would result. The Project does not include any unusual characteris0cs or construc0on processes that would require the use of equipment that would be more energy intensive than comparable ac0vi0es and is water supply infrastructure with no addi0onal features that would require an increased energy demand. The energy demands of the Project are expected to be accommodated within the context of available resources and energy delivery systems.
As a result of the reasons listed above, the Project would result in less than significant environmental impacts and no Mi0ga0on Measures are needed.
MITIGATION:
None required.
b) Conflict with or obstruct a state or local plan for renewable energy or energy efficiency?
DISCUSSION OF EFFECTS:
Less than Significant Impact. See Sec0on 6.3, a). Plans for the Project indicate consistency with state and local plans for sustainability including the Ontario Community Climate Ac0on Plan, since emissions are projected to be below Ontario’s interim targets and the Project will help to conserve Ontario’s potable water by conver0ng exis0ng irriga0on systems to recycled water. See Sec.on 8. Greenhouse Gas Emissions. Project compliance with the Pavley (AB 1493) regula0ons would be achieved via conformance with federal and state fuel efficiency standards throughout construc0on and long-term opera0on. The Project requires a minimal number of vehicle trips during opera0ons; there will be no change in long-term maintenance or vehicle use. During the short-term, the contractor is required to comply with all applicable standards. In addi0on, the Project contractor must comply with the State’s Renewable Energy Poraolio Standards for construc0on waste throughout construc0on ac0vi0es.
The standard applica0on of Ontario’s plan review and inspec0on processes will result in compliance with state and local development standards implemen0ng energy efficiency requirements. For these reasons, less than significant impacts are an0cipated. No Mi0ga0on Measures are needed.
MITIGATION:
None required.
642
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 103
7. GEOLOGY AND SOILS
7.1 Regulatory Compliance
Alquist-Priolo Earthquake Fault Zoning Act
California’s Alquist-Priolo Earthquake Fault Zoning Act (Alquist-Priolo Act) (PRC Sec0on 2621 et seq.), originally enacted in 1972 as the Alquist-Priolo Special Studies Zones Act and renamed in 1994, is intended to reduce the risk to life and property from surface fault rupture during earthquakes. The California Department of Conserva0on defines Alquist- Prio Zones as “regulatory zones surrounding the surface traces of ac0ve faults in California” (DOC n.d.).
The Alquist-Priolo Act prohibits the loca0on of most types of structures intended for human occupancy across the traces of ac0ve faults and strictly regulates construc0on in the corridors along ac0ve faults (earthquake fault zones). Specifically, the Act requires structures intended for human occupancy to maintain a minimum distance of 50 feet from the fault line. It also defines criteria for iden0fying ac0ve faults, giving legal weight to terms such as ac0ve, and establishes a process for reviewing building proposals in and adjacent to earthquake fault zones.
Under the Alquist-Priolo Act, faults are zoned and construc0on along or across them is regulated if they are ac0ve and “a fault is considered well defined if its trace can be clearly iden0fied by a trained geologist at the ground surface or in the shallow subsurface, using standard professional techniques, criteria, and judgment.
California Building Code
The California Building Code (Title 24, Part 1) establishes regula0ons for building design and safety related to seismicity, materials and founda0ons which are implemented through the standard applica0on of plan check and inspec0ons for grading and building. Southern California is seismically ac0ve, and it is likely that the site would experience earthquake ground shaking within the life of the Project. Strong earthquake shaking is a hazard shared throughout the region and the direct risks posed to structures by ground shaking are mi0gated through the structural design provisions of the California Building Code (CBC). The seismic design provisions of the 2010 CBC include a methodology by which sites are classified as A through F according to site-specific ground shaking effects.
California Environmental Quality Act (CEQA): Paleontological Resources CEQA provides guidance rela0ve to significant impacts on paleontological resources, indica0ng that a project will have a significant impact on paleontological resources if it disturbs or destroys a unique paleontological resources or site or unique geologic feature. Sec0on 5097.5 of the California Public Resources Code specifies that any unauthorized removal of paleontological remains is a misdemeanor. Further, California Penal Code Sec0on 622.5 sets penal0es for damage or removal of paleontological resources. CEQA documenta0on prepared for projects would be required to analyze paleontological resources as a condi0on of the CEQA process to disclose poten0al impacts. Please note that as of January 2018 paleontological resources are considered in the geological rather than cultural category.
City of Ontario
Projects within Ontario are required to comply to California Building Codes. The CBC has been incorporated into the Municipal Code as Title 8, Chapter 1, Sec.on 8-1.01: Adop.on of Administra.ve Code. - Erosion Control and Sediment Control Plan Requirements Prior to the issuance of building permits, the City Engineering Department requires project plans include “Erosion Control and Sediment Control and Contractor Ac0vity Notes” (The 2050 Ontario Plan). This procedure is enforced by City Staff during the plans check and inspec0on process to ensure projects prevent soil erosion and discharge of other construc0on-related pollutants that could contaminate state and local water resources. In addi0on, Ontario’s plan check process requires applicants to display conformance with 643
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 104
applicable Best Management Prac0ces (BMPs) like those recommended within the California Stormwater Quality Associa0ons’ Construc0on BMP Online Handbook (December 2019); and prepare a Stormwater Pollu0on Preven0on Plan (SWPPP).
7.2 Exis6ng Condi6ons
Geologic Composi6on
The Project is located within the Upper Santa Ana River Valley. Geologic units within this area are composed of alluvial fans formed by streams flowing out of the San Gabriel Mountains from the north and sediments less than 11,000 years old (Holocene), which have been deposited by water and wind (The 2050 Ontario Plan, 2022).
According to Figure 5.7-1 Geologic Map within the GP EIR, the Project is underlain with Young Alluvial Fan Deposits. These deposits range from the Holocene to late Pleistocene period and consist of slightly to moderately consolidated deposits of brown to grayish silt, sand, and gravely sand with cobbles (The 2050 Ontario Plan EIR, 2022). The City of Ontario has a gentle slope of approximately 1 percent with eleva0ons ranging from approximately 1,150 feet in the north and 640 feet in the south.
Seismic Ac.vity: Seismic ac0vity is common within the Southern California region. The Ontario Plan and GP EIR indicate no fault lines are within city limits. The closest ac0ve fault to the Project is the Red Hill-E0wanda Avenue Fault, part of the Cucamonga fault zone, and the Cucamonga Fault, located approximately 5 and 11 miles north of the Project. The Red Hill-E0wanda Avenue Fault, traverses east across the City of Upland, and the Cucamonga Fault, extends east-west along the southern perimeter of the San Gabriel Mountains to Lytle Creek in the east.
Since both faults are part of the Cucamonga Fault zone, approximately 16 miles long along the southern front of the San Gabirel Mountains, these faults have poten0al maximum magnitudes of 6.9 (ECI 2006). The most recent earthquake near Ontario was a magnitude 5.4 earthquake in 2008, located approximately 6 miles southwest of city limits within Chino Hills.
Liquefac.on: According to the Department of Conserva0on, CGS Seismic Hazards Program: Liquefac0on Zones Map, the City of Ontario is not within a liquefac0on zone. Liquefac0on zones closest to the City of Ontario are approximately 16 miles west within the City of Pomona and foothills of Chino, Puente, and San Jose Hills.
Landslides: According to the California Department of Conserva0on, Landslide Inventory Map, city limits, and the Project Loca0on are not located within an area prone to landslides.
7.3 Project Impacts
Responses in the following sec0ons are based on the following technical reports prepared for the Project which outline the baseline condi0ons of geology and soil composi0on:
- Appendix C- Cultural Resources Assessment for UT1072 Downtown Recycled Water Pipeline Project, Ontario, San Bernadino County, CA, BCR Consul0ng, February 22,2024. - Appendix E: Soils and Geotechnical Inves0ga0on, Euclid Avenue Downtown Recycled Water Pipeline Project, Ontario, San Bernardino County, California, prepared by NOVA Service on December 8, 2023 a) Directly or indirectly cause potenal substanal adverse effects, including the risk of loss, injury, or death involving:
i. Rupture of a known earthquake fault, as delineated on the most recent Alquist-Priolo Earthquake Fault Zoning Map, issued by the State Geologist for the area or based on other substanal evidence of a known fault? Refer to Division of Mines and Geology Special Publicaon 42.
DISCUSSION OF EFFECTS:
No Impact. The Project is not located within the boundaries of an Earthquake Fault Zone for fault rupture hazard defined by the Alquist-Priolo Earthquake Zoning Act of 1972, as indicated by research on California’s Department 644
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 105
of Conserva0on, Geological Survey Website, reference (CGS Earthquake Zones (ca.gov) the closest faults are approximately 5 and 11 miles north from the Project. The Project does not propose habitable structures or addi0onal permanent popula0on.
For the reasons above, substan0al unique threat associated with implementa0on of the Project would not occur.
Project impacts are not an0cipated to differ substan0ally from what is expected to occur at other proper0es in the Local Vicinity.
MITIGATION:
None required.
ii. Strong seismic ground shaking?
DISCUSSION OF EFFECTS:
Less than Significant Impact. All of California is subject to potential seismic activity, and areas within proximity of fault zones are subject to regulations minimizing risk associated with ground shaking. The Project is subject to ground shaking due to its geographic location and the state’s overall susceptibility to earthquakes; there is nothing unique about the location of the Project that would make it susceptible to strong seismic ground shaking. The severity of shaking is dependent on proximity with active faults and estimated maximum ground acceleration of the fault. While potential for seismic ground shaking is relatively high due to the proximity of the Project to the nearest fault zone, being approximately 5 miles from the closest fault line. The Project is required to comply with seismic safety provisions for earth work which are incorporated into Chapter 10c-30 - Excava0on and Grading as well as Engineering Standards for u0lity design and installa0ons. Compliance with these regula0ons reduces poten0al hazards from ground shaking to less than significant levels. Therefore, impacts from seismic ground shaking are an0cipated to be less than significant. No Mi0ga0on Measures are needed.
MITIGATION:
None required.
iii. Seismic-related ground failure, including liquefacon? DISCUSSION OF EFFECTS:
Less than Significant Impact. Liquefac0on is not iden0fied as a poten0al hazard within city limits based on groundwater levels being greater than 50 feet below ground surface; therefore, there will no impacts due to liquefac0on. The incorpora0on of engineering design standards into plans for the Project and the standard applica0on of Ontario’s plan check and inspec0on process during construc0on will result in less than significant impacts related to seismic-related ground failure. Therefore, no Mi0ga0on Measures are needed.
MITIGATION:
None required.
iv. Landslides?
DISCUSSION OF EFFECTS:
No Impact. The Project is not within an area prone to landslides according to the Department of Conserva0on.
The Project is located on flat land and does not contain slopes that are significantly steep, which would cause concern for landslides. Project construc0on would involve open trenches, which would create temporary slopes subject to failure. However, deeper cuts are required to be temporary reinforced through means such as shoring pursuant to Ontario’s Engineering Standards, Domes0c Water / Recycled Water / Sewer Guidelines, the Greenbook Standard Specifica0ons for Public Works Construc0on, as well as Cal OSHA standards, the California Division of Industrial Safety and California Building Code. 645
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 106
As a result, the Project would not result in substan0al impacts due to landslides. No Impacts are an0cipated, and no Mi0ga0on Measures are needed.
MITIGATION:
None required.
b) Result in substanal soil erosion or the loss of topsoil? DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. Project construction will require open cut trenching for the pipeline, which will temporarily disturb stable ground surface leaving soils susceptible to erosion during construction. Additionally, other processes such as truck traffic, equipment use, and materials handling and transport may also temporarily disrupt topsoil or result in airborne dust and erosion. Therefore, soil erosion and potential loss of some topsoil may occur during construction, especially during high winds and rains. As a result, the proposed Project will implement previously approved Mitigation Measures MM GEO-01: Uniform Building Code and California Building Code, MM GEO-02: Performance Standards, MM GEO-03: Stored Backfill, MM GEO-04: Excavated Areas, MM GEO-05: Disturbed Soils, and MM GEO-06: Open Trench, which will be wri@en into the Project-specific specifica0ons prior to Project approval. Mi0ga0on Measures will require the Project to comply with Uniform Building Code (UBC) and California Building Code standards; performance standards for Risk Class I & II; specify requirements for stored backfill; proper compac0on and backfill of excavated areas; and ensure fugi0ve dust control throughout Project construc0on.
The Project does not propose permanent changes to natural drainage pa@erns. Surfaces would return to exis0ng stable condi0ons upon the comple0on of construc0on. Through the standard applica0on of Ontario’s plan check and review process, the City Engineer would ensure Project plans conform with Ontario’s Engineering Standards for Domes0c Water/Recycled Water/Sewer Guidelines and Greenbook Standard Specifica0ons for Public Works Construc0on, as well as Ontario’s water quality Environmental/NPDES Permit requirements for erosion and sediment control. As a result, no significant impacts are an0cipated to occur from substan0al soil erosion or loss of topsoil with the implementa0on of previously approved Mi0ga0on Measures.
MITIGATION:
MM GEO-01: Uniform Building Code and California Building Code, MM GEO-02: Performance Standards, MM GEO-03: Stored Backfill, MM GEO-04: Excavated Areas, MM GEO-05: Disturbed Soils, GEO-06: Open Trench. c) Be located on a geologic unit or soil that is unstable, or that would become unstable as a result of the Project, and potenally result in on- or off-site landslide, lateral spreading, subsidence, liquefacon or collapse? DISCUSSION OF EFFECTS:
Less Than Significant Impact. See Discussion of Effects 5.7.3, a) through b). Geologic composition underlying the Project is comprised of alluvial fan deposits dating back to the Holocene age approximately 11,000 years ago.
Alluvial soils generally consist of gravel, sands, silts, cobbles, and rocks which can be unstable. Through the standard applica0on of Ontario’s plan check and inspec0on process, the Project would comply with Ontario’s Engineering Standards for Domes0c Water /Recycled Water/Sewer Guidelines, the Greenbook Standard Specifica0ons for Public Works Construc0on, resul0ng in less than significant impacts related to poten0al geologic hazards. These City standards require receipt of the Geotechnical Engineering Report prior to final plan approval by the City for the Project and would also require geotechnical observa0ons and input throughout construc0on to verify compliance. Therefore, recommenda0ons for shoring or sloping back trench sidewalls due to the sandy composi0on of alluvial fan deposits at the Project Loca0on would be incorporated into the final Project pursuant to the standard applica0on of Ontario’s plan check process. 646
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 107
For these reasons, less than significant impact is an0cipated from geologic units or soils that are unstable resul0ng in poten0al on- or off-site landslide, lateral spreading, subsidence, liquefac0on or collapse. Therefore, no mi0ga0on measures are needed.
MITIGATION:
None required.
d) Be located on expansive soil, as defined in Table 18-1-B of the Uniform Building Code (1994), creang substanal direct or indirect risks to life or property? DISCUSSION OF EFFECTS:
Less Than Significant Impact. The Project is proposed within an area with soils properties that are alluvial and non-expansive. The north part of the Project is underlain with surface soils that are primarily granular; the south part of the Project contains surface soils composed of silts, sandy silts, silty clays, which have very low expansion potential. The Project will be constructed within ROW consisting of previously disturbed surface soils and engineered fill. Additionally, construction activities would comply with standards for safety defined in Ontario’s Engineering Standards and the Greenbook Standard Specifications for Public Works Projects, resulting less than significant impacts.
For the reasons above, Project impacts ae anticipated to be less than significant. No Mitigation Measures are needed.
MITIGATION:
None required.
e) Have soils incapable of adequately supporng the use of sepc tanks or alternave wastewater disposal systems where sewers are not available for the disposal of wastewater? DISCUSSION OF EFFECTS:
No Impact. Sep0c tanks or alterna0ve wastewater disposal systems are not proposed with the Project. There are no exis0ng sep0c tanks or alterna0ve wastewater disposal systems within the APE or Local Vicinity.
Therefore, no impacts are an0cipated, and no Mi0ga0on Measures are needed.
MITIGATION:
None required.
f) Directly or indirectly destroy a unique paleontological resource or site or unique geologic feature? DISCUSSION OF EFFECTS:
Less than Significant Impact with Mi.ga.on Incorporated. On March 5, 2024, a le@er from the Western Science Center was received by the Cultural Resources inves0gator indica0ng that the geologic units underlying the Project are mapped as young alluvial deposits from the middle Holocene epoch (Morton, et al., 2003). Holocene alluvial units are of high preserva0on value, but the discovery of fossil materials within these soils are unlikely since deposits are of rela0vely modern dates. The depth of cuts and earthwork will increase the likelihood of reaching Pleistocene alluvial sediments and paleontological resources. The Western Science Center does not have locali0es within the APE for the Project or within the Local Vicinity within a 1- or 2-mile radius of the Project.
Therefore, according to the Western Science Center, while the presence of any fossil material is unlikely, if excava0on ac0vity disturbs deeper sediment da0ng to the earliest parts of the Holocene or Late Pleistocene periods, the material would be scien0fically significant. 647
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 108
Since the Project proposes to excavate within the City ROW within areas of previous disturbance, excava0on earthwork associated with Project implementa0on is unlikely to be paleontologically sensi0ve. However, throughout Project construc0on precau0ons will be taken pursuant to Mi0ga0on Measure MM CUL-03: Worker Environmental Awareness Training. This Mi0ga0on Measure will ensure that workers are properly trained prior to earthworks or Project ac0vi0es. In the unlikely event that paleontological resources are found during earthwork, the contractor will implement MM PALEO-01 which requires construc0on within the area surrounding the find to be halted un0l the City’s Archaeologist can examine the find and consult with qualified paleontologists from the San Diego Natural History Museum who will be on call for the Project to determine proper treatments.
As a result, less than significant impacts to paleontological resources or unique geologic features are an0cipated with the implementa0on of Mi0ga0on Measure MM CUL-03: Worker Environmental Awareness Training.
MITIGATION:
MM CUL-03: Worker Environmental Awareness Training in Sec.on 5. Cultural Resources.
MM PALEO-01: Buried Paleontological Resources.
648
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 109
8. GREENHOUSE GAS EMISSIONS
8.1 Regulatory Compliance
Greenhouse Gas Emissions (GHGs) are thought to be caused by emissions from human ac0vi0es, air temperature, and mixing of specific chemicals within the atmosphere. Chemicals known to result in GHG include water vapor, carbon dioxide (CO2), methane (CH4), nitrogen oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF6) (State Guidelines, Sec0on (State CEQA Guidelines, Sec0on 15364.5 and Health and Safety Code, Sec0on 38505(g)). GHGs in the atmosphere enhance the Greenhouse Gas Effect, resul0ng trapped heat within Earth’s atmosphere leading to the con0nual warming of the Earth’s climate.
According to the 2007 IPCC Report, global temperatures are an0cipated to increase by approximately 0.2 degrees Celsius per decade (IPCC 2007).
Due to the impacts greenhouse gas emissions have on the planet, Senate Bill (SB) 97 was signed into legisla0on in 2007. SB 97 required CEQA documents prepare feasible mi0ga0on of greenhouse gas emissions and evaluate poten0al effects.
U.S. Environmental Protec.on Agency
The federal government administers a wide array of public-private partnerships to reduce the GHG emissions generated in the United States. The U.S. EPA is responsible for implemen0ng federal policies and programs to address GHG, which primarily focus on energy efficiency, renewable energy, methane and other non-CO2 gases, agricultural prac0ces, and implementa0on of technologies to achieve emissions reduc0ons.
Senate Bill (SB) 32
In 2006, the California State Legislature adopted AB 32, the California Global Warming Solu0ons Act of 2006. AB 32 requires CARB, to adopt rules and regula0ons that would achieve GHG emissions equivalent to statewide levels in 1990 by 2020 through an enforceable statewide phased emission cap star0ng in 2012.
CARB
Scoping Plan
The CARB Board approved a Climate Change Scoping Plan in December 2008. The Scoping Plan outlines the State’s strategy to achieve the 2020 greenhouse gas emissions limit. The Scoping Plan “proposes a comprehensive set of ac0ons designed to reduce overall greenhouse gas emissions in California, improve our environment, reduce our dependence on oil, diversify our energy sources, save energy, create new jobs, and enhance public health” (California Air Resources Board 2008). The measures in the Scoping Plan have been in place since 2012.
This Scoping Plan calls for an “ambi0ous but achievable” reduc0on in California’s GHG emissions, cuVng approximately 30 percent from business-as-usual emission levels projected for 2020, or about 10 percent from today’s levels. On a per-capita basis, that means reducing annual emissions of 14 tons of carbon dioxide for every man, woman and child in California down to about 10 tons per person by 2020.
City of Ontario Community Climate Ac.on Plan
The City of Ontario adopted the Community Climate Ac0on Plan (CCAP) on December 16th, 2014. The CCAP establishes goals and policies to reduce GHG emissions from nine sectors including: “building energy, renewable energy, wastewater treatment, solid waste management, on-road transporta0on, off road equipment, agriculture, water and miscellaneous”. Ontario adopted the 2022 CCAP with citywide GHG emission reduc0on targets of 40 percent below 1990 levels of emissions by 2030 and 80 percent below 1990 levels of emissions by 2050. Ontario’s targets are consistent with State laws in effect at the 0me of the adop0on, including SB 32. The CCAP requires GHG reduc0ons locally that complement State and interna0onal efforts of stabilizing climate change. The CCAP contains the following components that fulfill cumula0ve mi0ga0on for GHG emissions:
649
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 110
- The CCAP provides a community wide GHG emission reduc0on target to substan0ally lessen the cumula0ve impact;
- The CCAP provides measures that new development projects must follow to meet Ontario’s reduc0on target and substan0ally lessen the cumula0ve impact;
- The CCAP provides a set of GHG emissions inventories that provides quan0ta0ve facts and analysis of how the measures within the CCAP meet the reduc0on target that substan0ally lessens the cumula0ve impacts;
- The CCAP provides an implementa0on, monitoring and update program to ensure that the reduc0on target is met.
According to Ontario’s CCAP, the installa0on of a recycled water pipeline to irrigate residen0al and open spaces helps the City to achieve water conserva0on and reduce GHG emissions pursuant to Reduc.on Measure PS W1:
Residen.al Water Conserva.on and Reduc.on Measure PS W2: Commercial/ Industrial Water Conserva.on.
8.2 Exis6ng Condi6ons
GHG emissions are a@ributed to sources including industrial/manufacturing, agriculture, u0li0es, transporta0on, and residen0al land use. A large percentage of the State’s GHG emissions come from transporta0on, approximately 41 percent followed by energy genera0on. However, water and wastewater services only account for 4% of all electricity consump0on na0onally and 6.9% of all electricity in California.
Within the City of Ontario, GHG emissions from transporta0on make up 55 percent of Ontario’s GHG emissions inventory. See Table 17: Exis/ng City of Ontario GHG Emissions Inventory below.
TABLE 17: EXISTING CITY OF ONTARIO GHG EMISSIONS INVENTORY Sector Exis6ng MTCO2e/year Percent of Total
Residen6al Energ3 155,030 9%
Nonresiden6al Energy3 395,780 23%
Transporta6on 4 934,590 55%
Solid Waste5 83,400 5%
Water and Wastewater6 20,250 1%
Agriculture7 48,540 3%
Off-Road Equipment8 65,480 4%
Land Use and Sequestra6on9 660 <1%
Total 1,703,730 100%
Source: The 2050 Ontario Plan EIR, 2022.
Notes: Appendix F of the 2050 Ontario Plan EIR
(1) The CCAP is based on year 2019 condi6ons because it more closely reflects Ontario’s GHG targets, and the inventory reflects pracademic condi6ons. (2) The GHG emissions inventory was compiled using the following protocols. a. U.S. Community Protocol. The community wide GHG inventory uses the United States Community Protocol for Accounng and Reporng of Greenhouse Gas Emissions (U.S. Community Protocol), which was first developed in 2012 and last updated in 2019. b. Global Protocol. The Global Protocol for Community-Scale Greenhouse Gas Inventories (Global Protocol) was first developed in 2014 and is intended for preparing interna6onal-community-scale GHG inventories. It is largely consistent with the U.S. Community Protocol, although it contains addi6onal guidance and resources to support a wider range of ac6vi6es in other countries. This protocol is used to assess GHG emissions from sources that are not covered in the U.S. Community Protocol. (3) Energy includes GHG emissions aYributed to the use of electricity and natural gas in residen6al and nonresiden6al buildings. (4) On-Road Transporta6on includes GHG emissions created by driving on-road vehicles, including passenger and freight vehicles. (5) Solid Waste includes the GHG emissions released from trash collected in Ontario. (6) Water and Wastewater accounts for the electricity used to transport every gallon of water or wastewater to city residents and businesses as well as direct emissions resul6ng from processing of wastewater material. (7) Agriculture includes GHG emissions from various agricultural ac6vi6es, including agricultural equipment, crop cul6va6on and harves6ng, and livestock opera6ons.
(8) Off-Road Equipment includes GHG emissions from equipment that does not provide on-road transporta6on (excluding agricultural equipment), such as equipment for construc6on or landscape maintenance.
(9) Land Use and Sequestra6on includes GHG emissions absorbed and stored in trees and soils on locally controlled lands as part of healthy ecosystems and released into the atmosphere from development of previously undeveloped land. 650
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 111
8.3 Project Impacts
The Discussion of Effects within this sec0on are based on Appendix A- Air Quality, Global Climate Change, and Energy Impact Analysis for the UT1072 Downtown Recycled Water Pipeline Project dated February 1, 2024, conducted by Ganddini. Results from the study are based on modeling from CalEEMod Version 2022.1.1.21, which was used to calculate the GHG emissions from the construc0on of the proposed Project. The construc0onrelated GHG emissions were included in the analysis and were based on a 30-year amor0za0on rate. a) Generate greenhouse gas emissions, either directly or indirectly, that may have a significant impact on the environment?
DISCUSSION OF EFFECTS:
Less than Significant Impact. The proposed Project has the poten0al to generate GHG emissions during construc0on from mobile sources and construc0on equipment. However, the Project will not increase maintenance requirements or result in addi0onal staffing needs for long-term opera0on and maintenance; no addi0onal trips for rou0ne maintenance would be needed because the Project will install new recycled water mains within the same geographic area as the exis0ng potable water system to convert exis0ng irriga0on systems to recycled water. The Project will not install new equipment. Therefore, addi0onal long-term emissions associated with the opera0on of the proposed Project would be negligible and sourced from a minimal number of vehicle trips associated with rou0ne Project maintenance. Therefore, long-term maintenance of the proposed Project is not an0cipated to differ substan0ally from exis0ng condi0ons.
Based on the parameters above, GHG emissions were calculated for the Project. Calcula0ons without credit for any reduc0ons from sustainable design, and/or regulatory requirements are an0cipated to be 39.93 MTCO2e (amor0zed over 30-years) for Project construc0on. See Table 18: Project-Related Greenhouse Gas Emissions below. At a level of 39.93 MTCO2e per year, the Project emissions do not exceed the SCAQMD draF GHG emissions threshold of 3,000 MTCO2e per year for all land uses; therefore, the impacts from GHG are less than significant.
TABLE 18: PROJECT-RELATED GREENHOUSE GAS EMISSIONS
Category
Greenhouse Gas Emissions (Metric Tons/Year)
Bio-CO2 NonBio-CO2 CO2 CH4 N2O CO2e
Construc6on Emissions1, 2 0.00 39.77 39.77 0.00 0.00 39.93 Total Emissions 0.00 39.77 39.77 0.00 0.00 39.93
SCAQMD DraQ Screening Threshold 3,000
Exceeds Threshold? No
Source: Appendix A- Air Quality, Greenhouse Gas, Energy Technical Memorandum, Ganddini 2024.
Notes: CalEEMod Version 2022.1.1.14
(1) Construc6on GHG emissions CO2e based on a 30-year amor6za6on rate. (2) The Proposed Project is the installa6on of a new recycled water pipeline. Therefore, opera6on of the Proposed Project includes only a minimal number of monthly workers in order to conduct rou6ne inspec6ons and ensure proper long-term maintenance. As opera6onal emissions are an6cipated to be negligible and only from monthly maintenance vehicle trips, only construc6on related GHG emissions have been included in this analysis.
MITIGATION:
None required.
b) Conflict with an applicable plan, policy or regulaon adopted for the purpose of reducing the emissions of greenhouse gases?
DISCUSSION OF EFFECTS:
Less than Significant Impact. See Sec0on 8.3, Discussion of Effects a) above. At a level of 39.93 MTCO2e per year, the Project's GHG emissions would follow the reduc0on goals of the CARB Scoping Plan, AB-32 and SB-32, which state GHG emissions must be equivalent to statewide levels in 1990 by 2020. Since the Project meets 651
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 112
interim emissions targets/ thresholds established by SCAQMD, the Project would be on track to meet the reduc0on target of 40 percent below 1990 levels by 2030 mandated by SB-32. Furthermore, the Project will comply with applicable City of Ontario’s policies regarding sustainability (as dictated by The Ontario Plan). Most of the post 2020 reduc0ons in GHG emissions are addressed via regulatory requirements at the State level and the Project will be required to comply with these regula0ons as they come into effect. Examples of these efforts may include upgrading City vehicle fleets to electric or fuel-efficient op0ons, purchasing greener products, and establish more sustainable codes, etc. (CARB, 2017).
Given the Project’s consistency with the CARB Scoping Plan, the Project would not conflict with any applicable plan, policy, or regula0on of an agency adopted for the purpose of reducing GHG emissions. Given this consistency, it is concluded that the Project’s incremental contribu0on to GHG would result in less than significant impacts on climate change, and the Project would have cumula0ve impacts.
Impacts are less than significant; no Mi0ga0on Measures are needed.
MITIGATION:
None required.
652
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 113
9. HAZARDS AND HAZARDOUS MATERIALS
9.1 Regulatory Compliance
Materials are considered hazardous if they are on a list of hazardous materials prepared by federal, state or local agencies. The material must also have characteris0cs defined by such agencies that make the material hazardous. Regula0ons establish exposure limits for safety and human health. Exposure to hazardous materials exceeding these limits can result in poten0al health effects depending on the extent of exposure and individual suscep0bility.
Hazardous materials are u0lized frequently throughout the City of Ontario for residen0al, commercial, industrial, and agricultural purposes. However, regula0ons are set forth by the agencies including the Environmental Protec0on Agency (EPA), CAL-OSHA, and Department of Toxic Substances Control (DTSC), to ensure the proper handling, storage, disposal, and transport of hazardous materials are implemented to protect public and environmental health. These agencies oversee remedia0on measures regarding air, water, worker safety, and produc0on of hazardous materials pursuant to environmental protec0on laws including Clear Air Act, Clean Water Act, Porter Cologne Water Quality Act, Resource Conserva0on and Recovery Act, Title 22 of the California Code of Regula0ons, Health and Safety Code, and California Occupa0onal Safety and Health Act of 1973.
U.S. Environmental Protec6on Agency (EPA)
The EPA provides federal regula0ons regarding adequate hazardous waste management. The EPA was given authority by Congress to develop the Resource Conserva0on and Recovery (RCRA) program through the RCRA Act. The Act created the framework for proper management of hazardous and non-hazardous solid waste. Under RCRA, the EPA regulates hazardous waste from genera0on to disposal, referred to as “cradle to grave.” Over the years, the EPA has led several hazardous waste ini0a0ves to meet growing challenges that come with hazardous waste management. The EPA has created standards, exclusions, and exemp0ons for certain types of waste including Universal Waste, Household Hazardous Waste, Pharmaceu0cal hazardous waste, etc.
California Department of Toxic Substances Control (DTSC) California Department of Toxic Substances Control (DTSC) has primary responsibility for regula0ng hazardous materials in California under authority of Resource Conserva0on and Recovery Act and the California Health and Safety Code and California Hazardous Waste Control Law. Other en00es with responsibility for hazardous materials regula0on include:
− Regional Water Quality Control Board – under authority of the Porter Cologne Water Quality Control Act of 1969
− California Department of Pes0cide Regula0ons, Department of Food and Agriculture, and the Department of Public Health – under authority of California Code of Regula0ons Title 3 and Title 22 − California Department of Industrial Rela0ons, Division of OSHA – under authority of California Code of Regula0ons Title 8
− California Air Toxic “Hot Spots” (AB 2588) Program – under authority of the California Safety Code In addi0on to various regula0ons, the DTSC also provides an Emergency Response Unit (ERU). The ERU is in place to issue “statewide response to actual and poten0al released of hazardous substances that pose an acute threat to public health and/ or the environment” (DTSC 2022).
California Division of Occupa6onal Safety and Health (CAL-OSHA) CAL-OSHA enforces worker safety requirements, which contains standards specifically for hazardous waste opera0ons, emergency response, safety, and preparedness. CAL-OSHA standards must be implemented during general industry and construc0on ac0vi0es.
653
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 114
Santa Ana RWQCB (Region# 8)
Santa Ana RWQCB, Region #8, encompasses approximately 3,000 square miles containing a popula0on of nearly five (5) million people. The RWQCB aims to meet and exceed water quality standards and regula0ons to ensure public and environmental health. The Regional Board enforces water quality plans to comply with Water Quality laws and sustain long-term water supplies within the state.
The Regional Water Quality Board has created a tool called “GeoTracker” to iden0fy sites that impact or have the poten0al to impact, water quality within California. GeoTracker contains records for unregulated and regulated facili0es that include: “Irrigated Lands, Oil and Gas Produc0on, opera0ng Permi@ed Underground Storage Tanks (USTs) and Land Disposal Sites” (CA Water Boards 2023).
Cer6fied Unified Program Agency (CUPA)
The CUPA is a program that consolidates the administra0ve requirements, permit, inspec0ons, and enforcement ac0vi0es of six environmental and emergency response programs. California Environmental Protec0on Agency and other state agencies set the standards for the Program, while local governments enforce their standards via CUPAs. San Bernadino County Fire Department manages CUPA within San Bernadino County. The CUPA program is “designed to consolidate, coordinate, and uniformly and consistently administer permits, inspec0on ac0vi0es, and enforcement ac0vi0es throughout San Bernadino County” (SBFPD 2023). This department administers/ oversees the Hazardous Material Business Plan, California Accidental Release Preven0on (Cal-ARP), Aboveground Petroleum Storage Act, Hazardous Waste Generator, Hazardous Waste Onsite Treatment (Tiered PermiVng) and Underground Storage Tank program.
San Bernadino
Hazardous Waste Management Plan (HWMP): The County adopted a Hazardous Waste Management Plan in 1990, in response to Assembly Bill 2948 (Chapter 1504, Statues of 1986). The HWMP serves as the primary planning document for programs and best management prac0ces/ procedures for handling, transpor0ng, and disposing of hazardous materials within the County. It is a standard prac0ce for the San Bernadino County Fire Protec0on District Hazardous Management District to manage hazardous materials within the County based on the HWMP (The 2050 Ontario Plan, 2022).
Office of Emergency Services: The Office of Emergency Services is a division of the San Bernadino County Fire Protec0on District. This division is responsible for emergency preparedness and emergency services coordina0on throughout San Bernadino County. The division manages and operates the Emergency Opera0ons Center (EOC); deploys preselected and trained personnel for complex disasters or incidents; and assists parts of unincorporated San Bernadino County by assigning OES personnel to manage local planning goals and needs (The 2050 Ontario Plan EIR).
The City of Ontario
Local-Hazard Mi.ga.on Plan: The Local Hazard Mi0ga0on Plan (LHMP) was adopted in 2018 and has since been u0lized to reduce and eliminate loss of life and property due to natural disasters or hazards within Ontario. The LHMP is comprised of four main sec0ons:
(1) Summary of the natural and human caused hazards that pose a risk to our community. Includes descrip0ons of past disaster events and the chances of these disasters occurring in the future. (2) Assessment of the threat to Ontario. This sec0on describes how Ontario’s community is vulnerable to future disasters. The plan will look at the threat to important buildings and infrastructure, such as police and fire sta0ons, hospitals, roads, and u0lity lines. In addi0on, it will look at the threat to community members, par0cularly vulnerable popula0ons.
654
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 115
(3) A hazard mi0ga0on strategy. The following strategy lays out specific policy recommenda0ons for Ontario to carry out over the next five years. These recommenda0ons will help reduce the threat that our community faces from hazard events.
(4) Maintaining the Plan. This sec0on will help to ensure that Ontario’s LHMP is kept up to date. This will make it easier for Ontario to con0nue to proac0vely protect residence and will also keep Ontario eligible for addi0onal funding. (City of Ontario Local Hazard Mi0ga0on Plan (LHMP), 2018).
Emergency Preparedness Guide: Ontario’s Emergency Preparedness Guide was created by Ontario’s Emergency Management Division and adopted in November 2020. The Emergency Preparedness Guide ensures that the Ontario and its residents maintain a high level of preparedness for disasters. The guide outlines how residents can develop their own emergency plan, kit, and responsiveness for each disaster an0cipated within city limits ranging from Disease Outbreaks to Earthquakes.
9.2 Exis6ng Condi6ons
Due to industrial uses near the Ontario Airport and agricultural land uses south of Riverside drive, the transport of hazardous materials along regional and local roadways are a common occurrence. In addi0on to emergency services departments, Ontario employs full-0me maintenance staff to maintain the ROW and related facili0es to ensure that broken irriga0on systems, standing water, discarded items, hazardous materials, and other hazardous condi0ons are remediated promptly. Poten0al natural hazards within city limits include soil instability, flooding, wildland and urban fires. Geological and soil hazards are discussed in Sec0on 9. Geology and Soils. Human-induced hazards include hazardous materials and waste associated with poten0ally toxic substances are addressed in this sec0on. The presence of all hazards within Ontario are mi0gated u0lizing the procedures detailed in the San Bernadino Hazardous Waste Management Plan, the City of Ontario Local Hazardous Mi0ga0on Plan, City’s Preparedness Guide, Standard Specifica0ons, Ontario’s Engineering Standards, and Municipal Code and City planning documents including The Ontario Plan, Drainage Master Plan, and Water Master Plan.
According to GeoTracker, a website maintained by the State Water Quality Control Board and EnviroStor website, maintained by the DTSC, there are no ac0ve environmental hazards within the limits of proposed construc0on for the Project (South Por0on and North Por0on). The closest ac0ve Clean Up Site is a LUST Cleanup Site located approximately 12 miles southwest of the Project’s proposed BPS Site, located at 2500 Garey Avenue, Pomona, CA 91766. The site was contaminated by gasoline and is being monitored by Los Angeles County via six (6) groundwater monitoring wells.
9.3 Project Impacts
a) Create a significant hazard to the public or the environment through the roune transport, use, or disposal of hazardous materials?
DISCUSSION OF EFFECTS:
Less than Significant Impact. As referenced in Sec0on 9.2 Exis0ng condi0ons, the closest ac0ve LUST Cleanup Site is located approximately 12 miles downgradient from the Project Loca0on; therefore, no impact is an0cipated as a result. Project construc0on will involve the use of heavy equipment and chemicals including the transport of diesel fuel for construc0on equipment to and from the Project. Due to these an0cipated prac0ces, the Project will conform with programs and regula0ons for temporary hazardous materials storage, handling, and transport during construc0on. The contractor will coordinate construc0on ac0vi0es with City and County Fire Departments; this includes development of a manifest of poten0ally hazardous materials and an approved plan pursuant to the City of Ontario’s Emergency Preparedness Guide and Local Hazard Mi0ga0on Plan for proper containment of the materials during Project construc0on. The Project contractor will also implement CalOSHA requirements for workers safety and conduct regular site inspec0ons. 655
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 116
As a result of the reasons above, less than significant impacts related to a significant hazard to the public or the environment through the routine transport, use, or disposal of hazardous materials. No Mitigation Measures are needed.
MITIGATION:
None required.
b) Create a significant hazard to the public or the environment through reasonably foreseeable upset and accident condions involving the release of hazardous materials into the environment?
DISCUSSION OF EFFECTS:
Less than Significant Impact. See Sec0on 9.3, Discussion of Effects a). The handling, use, and disposal of hazardous materials during Project construction is regulated through the standard application and compliance with the City and County Municipal Codes and contractor compliance with CAL-OSHA State standards.
Compliance is the responsibility of the contractor during construction. Ontario’s plan check and inspection process provide standard procedures for City verification that hazardous materials management procedures, which are appropriate for the site conditions and the Project, are reflected in the construction documents for the Project and that these management procedures are appropriately implemented throughout construction.
As a result, impacts during construction of the Project are less than significant.
MITIGATION:
None required.
c) Emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within one-quarter mile of an exisng or proposed school?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. See Sec0on 9.3, Discussion of Effects a) and b). There are three (3) schools within one-quarter mile distance from the proposed loca0on of the Project. The closest schools to the Project include Chaffey High School, approximately 200 feet west from 4th Street & Euclid Avenue, located within Chaffey Join Union High School District; St. George Parish School, approximately 50 feet north of D Street & N. Vine Ave., located in the Ontario-Montclair School District; and Levi H. Dickey Elementary School, approximately 800 feet north of Riverside Drive & S. Parco Ave., located in the Chino Valley Unified School District.
Opera0ons of the proposed Project do not an0cipate the long-term use or emission of hazardous materials, substances, or waste. However, during temporary, intermi@ent Project construc0on, hazardous materials will be used and stored within one-quarter mile distance from schools. As a result, prior to the start of Project ac0vi0es coordina0on with local school districts shall occur and a hazardous materials manifest and plan shall be implemented pursuant to mi0ga0on measure MM HAZ-01: Coordina/on with Local School Districts and MM HAZ-02: Hazards and Hazardous Materials Manifest and Plan.
The standard applica0on of City’s plan check and inspec0ons as well as applicable reviews for permit issuance will verify that design, construc0on, and long-term opera0on of the Project is aligned with Ontario’s Municipal Code and applicable state and federal standards. The standard applica0on of Ontario’s plan check and inspec0on process will ensure best management prac0ces and regula0ons regarding the transport, handling, and storage of hazardous materials are implemented to reduce the poten0al for release that would impact these schools to less than significant levels. As a result, the implementa0on of mi0ga0on measures and compliance with the 656
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 117
standard applica0on of Ontario’s plan check and inspec0on process for the Project will sufficiently reduce impacts on nearby schools from poten0ally hazardous materials.
Therefore, for reasons stated above, significant hazardous emissions or handling hazardous or acutely hazardous materials, substances, or waste within one-quarter mile of an exis0ng or proposed school are considered less than significant with mi0ga0on incorporated.
MITIGATION:
MM HAZ-01: Coordina.on with Local School District and MM HAZ-02: Hazards and Hazardous Materials Manifest and Plan.
d) Be located on a site which is included on a list of hazardous materials sites compiled pursuant to Government Code § 65962.5 and, as a result, would it create a significant hazard to the public or the environment?
DISCUSSION OF EFFECTS:
No Impact. Government Code sec0on 65962.5 is an updated list of Hazardous Waste Substances, also referred to as the Cortese List. The California Department of Toxic Substances Control Publishes the list as the EnviroStor Website (DTSC Cortese List 2022).
Based on a preliminary search on the EnviroStor Website, u0lizing the City name, Zip Code, and County, three results were found. None of the results were located at the Project Site or at adjacent land use addresses. Since the Project is not within an area included on the Cortese List of sites that have known or poten0al contamina0on and is not located where facili0es are permi@ed to treat, store, or dispose of hazardous waste, no impacts are an0cipated with the Project regarding Government Code sec0on 65962.5. For this reason, mi0ga0on measures are not required.
MITIGATION:
None required.
e) For a Project located within an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the Project result in a safety hazard or excessive noise for people residing or working in the Project area? DISCUSSION OF EFFECTS:
No Impact. See Sec0on 9.3, Discussion of Effects a) through d). The closest airports to the Project are Ontario Interna0onal Airport (ONT), approximately 1.6 miles southeast of the Northern Por0on of the Project Alignment, and Chino Airport, approximately 4 miles from the Southern Por0on of the Project Alignment at Riverside Drive and Euclid Avenue intersec0on. According to Figure 5.9-2: Airport Safety Zones, the Project is not within airport safety zones for either airport. The Northern Por0on of the Project is mostly within the 60-65 dBA and 65-70 dBA noise contours of Ontario Airport (The Ontario Plan, Figure 5.13-3: Airport Noise Contours, 2022).
The Project does not propose to increase housing or density that has the poten0al to conflict with the adopted Airport Land Use Compa0bility Plan. Construc0on will result in a small, temporary and intermi@ent short-term increase in day0me popula0on within segments of ac0ve construc0on. Over the long term, Project components will remain en0rely underground and will not interfere with long-term use of ONT or Chino Airport. The proposed Project would implement improvements previously approved and considered within The Ontario Plan and Recycled Water Master Plan; and conflicts with the adopted ALUCP are not an0cipated. 657
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 118
As a result, the Project is not an0cipated to result in a safety hazard or excessive noise for people residing or working in the Project area.
MITIGATION:
None required.
f) Impair implementa6on of or physically interfere with an adopted emergency response plan or emergency evacua6on plan?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. See Sec0on 9.3, Discussion of Effects a) through f) above.
Ontario has designated evacua0on routes at major arterials and regional transporta0on routes within city limits.
According to Figure 5.17-5: Evacua.on Routes and Ontario’s Local Hazard Mi0ga0on Plan (LHMP), Euclid Avenue, W. F Street, N. Vine Avenue, and E. Riverside Drive are designated evacua0on routes.
Access within the APE during construc0on will implement temporary detours accommoda0ng the construc0on schedule and construc0on ac0vi0es for the prject according to an approved traffic control plan. Since por0ons of the Project (Northern and Southern) are designated evacua0on routes, the traffic control plan, that is required for construc0on within city streets, has been incorporated into the MMRP as Mi0ga0on Measure MM TRAF-01:
Traffic Control Plan must accommodate emergency accessibility throughout construc0on. Plan check review involving coordina0on between the Ontario Fire, Engineering, and Planning Departments and local public services and u0li0es purveyors, is required for the Project as Mi0ga0on Measure MM PUB-01: Coordina/on with Local Agencies so that Traffic Control would for short-term Project ac0vi0es follow state and local emergency accessibility guidelines. Upon the compe00on of Project construc0on, the streets will be returned to pre-project condi0ons. Permanent impacts would not occur, since Project components consist of underground u0li0es within the public streets, city parks, and open space that do not involve long-term impairments to emergency routes or plans. The Project would comply with policies outlined within Ontario’s Safety Element which are listed in Table 19: City of Ontario General Plan Safety Element Policies.
TABLE 19: CITY OF ONTARIO GENERAL PLAN SAFETY ELEMENT POLICIES Safety Element
City of Ontario General Plan Project Consistency
S-3.4: Special Team Services. We
maintain effecve special rescue
services.
Through the plan check and review process for the proposed Project, Ontario’s Fire Department would provide input to ensure that effec6ve special rescue services are maintained throughout Project construc6on ac6vi6es at the Project Loca6ons and adjacent land uses.
S-6.2: Response to Hazardous
Materials Releases. We respond to
hazardous materials incidents and
coordinate these services with other
jurisdicons.
The proposed Project does not an6cipate u6lizing hazardous materials throughout Project construc6on. However, as men6oned above, the Project would provide a hazardous materials manifest to the City and Fire Department pursuant to Mi6ga6on Measure MM HAZ-02: Hazardous Materials Manifest and Plan. The manifest would ensure appropriate emergency response is planned for according to the hazardous materials are u6lized throughout Project construc6on.
Source: City of Ontario, 2022.
For these reasons, the proposed Project would not impact implementa0on of or physically interfere with an adopted emergency response plan due to the implementa0on of Mi0ga0on Measure MM TRAF-01: Traffic Control Plan. Therefore, less than significant impacts are an0cipated.
MITIGATION:
MM TRAF-01: Traffic Control Plan and MM PUB-01: Coordina6on with Local Agencies and Neighborhoods. 658
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 119
g) Expose people or structures, either directly or indirectly, to a significant risk of loss, injury or death involving wildland fires?
DISCUSSION OF EFFECTS:
Less than Significant Impact. See Discussion of Effects 5.9.3 a) through f). Project implementa0on will not result in significant changes in the number of people or new structures above ground surface within the APE due to the scope of the Project. According to CALFIRE Fire Hazard Severity Zone Viewer, the Project Loca0ons are not within areas prone to fire hazards. The Project Loca0ons are within urban, developed areas of Ontario’s downtown mixed-use district and residen0al, planned areas for future development. During construc0on, the Project will implement an approved traffic control plan according to the MMRP for the Project to facilitate emergency response and evacua0on throughout the APE. The Project will permanently improve Ontario’s recycled water system, making more potable water available to serve urban uses, including firefigh0ng. The Project is consistent with The Ontario Plan, the California Fire Code, County of San Bernadino Mul0-Jurisdic0on Hazard Management Plan, Ontario’s LHMP, and the Ontario Fire Department guidelines.
Therefore, the Project would not result in significant changes that would expose people or structures, directly or indirectly, to a significant risk of loss, injury, or death involving wildland fires. Less than significant impacts are an0cipated; therefore, no Mi0ga0on Measures are needed.
MITIGATION:
None required.
659
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 120
10. HYDROLOGY AND WATER QUALITY
10.1 Regulatory Compliance
The Clean Water Act (CWA)
U.S. EPA oversees the CWA to restore and maintain the chemical, physical, and biological integrity of the na0on’s waters. Regulatory authority for water quality involves monitoring and pollutant source control to minimize pollutant discharges into surface waters. Authority for CWA implementa0on has been assigned to the United States Army Corps of Engineers (Corps), the State Water Quality Control Board, Regional Water Quality Control Boards (RWQCB), County of San Bernadino, and City of Ontario. The CWA is an important instrument for water quality management and is the founda0on of various regulatory and non-regulatory programs (educa0on, outreach, voluntary efforts, partnerships with stakeholders, etc.). Regulated waterways under the CWA include lakes, streams, creeks, rivers as well as groundwater and recharge basins. The CWA contains several provisions protec0ng water quality, including Sec0ons 303(c)(2)(B), 303(d), 305(b), 401, 402(p), and 404, and the Toxics Rule:
- Sec.on 303(c)(2)(B) establishes water quality standards and designated beneficial uses within various water bodies (e.g., drinking water, recrea0on, biological preserva0on, etc.). This Sec0on of the CWA requires the State to review and update standards for designated uses. - Sec.on 303(d) of the Clean Water Act pertains to impaired surface waters. The State is required to publish a list of water bodies that are impaired due to levels of pollutants exceeding water quality criteria. The list provides informa0on about a waterbody’s loca0on and size, beneficial use classifica0on, and the sources and causes of impairments. The list is used to develop NPDES programs with targeted requirements for appropriate pollu0on source control that are needed to achieve healthful levels of Total Maximum Daily Loads (TMDLs) as a maximum threshold of pollutants allowed within a waterbody. The 303 (d) list reports the results of ongoing water quality tes0ng and monitoring. - Sec.on 401 gives the State the authority to issue water quality cer0fica0ons for ac0vi0es that may discharge into surface waters. Federal Permits, construc0on/opera0on of large facili0es by an individual permi@ee, and municipali0es are subject to compliance. Individual permits can be issued for projects that exceed the approved threshold of the General Na0onal Pollutant Discharge Elimina0on System (NPDES) Permit issued to a local agency. Ac0vi0es must be reviewed for compliance with water quality standards, either through an individual permit issued for a specific project by the state or verifica0on during plan check by a local agency that a project conforms with the general permit issued by the state. - Sec.on 402(p) pertains to the NPDES Program. This sec0on focuses on regula0ng point source stormwater discharges associated with industrial ac0vity, requiring industrial facili0es to obtain permits for their stormwater discharges.
- Sec.on 404 regulates discharge of fill materials into “Waters of the United States”, including wetlands. The Corps is responsible for the issuance of the Sec0on 404 permit if any project proposes to fill wetlands or “waters of the United States.”
- Toxic Rules of the CWA includes various regula0ons related to toxic substances within water bodies. The EPA establishes thresholds for toxic pollutants discharges into navigable waters.
Porter-Cologne Water Quality Control Act
The Porter-Cologne Water Quality Act protects the waters of the State for the use and enjoyment of the people.
The Act regulates ac0vi0es that foreseeably degrade water quality within the State, to a@ain the highest 660
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 121
reasonable water quality. The Porter-Cologne Water Quality Act is administered at a regional level, within the framework of the State Water Resources Control Board (SWRCB) and nine RWQCBs across the State of California.
Under the Act, each RWQBC must formulate and adopt their own water quality plan establishing objec0ves to ensure the reasonable protec0on of beneficial uses and preven0on of nuisance in surface waters (CA.gov 2023).
Santa Ana RWQCB
The Santa Ana RWQCB regulates water quality within the Santa Ana River Basin and is given water permiVng authority by the U.S. EPA. The primary responsibility of the Regional Board is to protect the quality of the waters within the region for all beneficial uses through the formula0on and adop0on of water quality plans for specific ground or surface water basins. In addi0on, the Regional Water Quality Control Board, enforces regula0ons of the Porter-Cologne Water Quality for industrial, domes0c, and agricultural water discharges. The Santa Ana RWQCB adopted a Basin Plan in 1995, which has been recently amended in 2019, outlining beneficial uses of State Waters, programs, and projects, suppor0ng RWQCB established standards.
Basin Planning - Chino Basin Watermaster 2020 State of the Basin Report Ontario obtains groundwater supplies from the Chino Groundwater Basin. The 2020 State of the Basin Report addresses groundwater supply and demand across the Chino Groundwater Basin.
Assembly Bill (AB) 325
AB 325, the Water Conserva0on in Landscaping Act, was adopted in 1990 by the Department of Water Resources (DWR), which developed a Model Water Efficient Landscape Ordinance (MWELO). The MWELO requires that Coun0es and Ci0es adopt landscape water conserva0on ordinances to address ongoing drought and build resiliency for future drought. Water conserva0on measures include the use of more “efficient irriga0on systems, incen0ves for grey (recycled) water use, improvements in on-site stormwater capture, and limi0ng the por0on of landscapes that can be covered in high-water-use plants and turf” (The 2050 Ontario Plan, 2022). Ontario has enacted provisions from the MWELO into the Landscape Development Guidelines.
Surface Water - NPDES Permit Program
The NPDES program is led and managed by the U.S. EPA Office of Wastewater Management in coordina0on with EPA regional offices. The EPA has delegated responsibility for management of the NPDES Program to the SWQCB and RWQCBs. At the local level, the NPDES Program is implemented by local ci0es and coun0es during discre0onary review for new construc0on and development. Program objec0ves involve pretrea0ng and filtering surface water flows to reduce pollutant discharges into surface waters and to protect beneficial uses in receiving waters. The NPDES program regulates discharge of any pollutant into surface waters (2050 Ontario Plan FEIR 2022) and involves pollutant monitoring in receiving waters, discre0onary review of specific projects, regula0on of ac0vi0es for water quality impairments, and deployment of pollutant source control requirements on construc0on, new development, and ac0vi0es via local discre0onary review for improvement of water quality.
The Project is under the jurisdic0on of the Santa Ana RWQCB, which has reviewed and approved the San Bernardino County Regional Municipal Separate Stormwater Sewer System (MS4) permit (Water Quality Order No. R8-2002-0012, NPDES. No. CAS618036) pursuant to the State’s water quality requirements. The MS4 permit provides general coverage under the State’s NPDES permit program for the San Bernardino County Flood Control District, County of San Bernardino, and incorporated Ci0es of San Bernardino County, including City of Ontario.
The permit applies water quality regula0ons in the form of approved standard best management prac0ces (BMPs) to individual projects to specifically target and minimize water quality concerns in surface water runoff within Ontario. Under the MS4 permit, certain types of construc0on ac0vi0es must implement standard BMPs which target pollutants that may contribute to water quality deficiencies in receiving waters for the City. Projects 661
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 122
which do not meet the guidelines established in the approved Municipal Permit must apply for an individual NPDES permit pursuant to Sec0on 401 of the CWA.
The NPDES General Construc0on Permit applies to new projects that plan to disturb more than one acre of land during Project construc0on. This permit requires a Storm Water Pollu0on Preven0on Plan (SWPPP) to be incorporated for construc0on plans for all projects. Ontario requires that an approved SWPPP include erosion control, spill preven0on, response procedures, nature and loca0on of chemical u0lized and stored during project construc0on, and methods to prevent adverse impacts of any discharge of chemicals, substances, or materials (Ontario Municipal Code Sec.on 6-6.502: General Permit for stormwater discharges from construc.on ac.vity).
SWPPP implementa0on includes installa0on of temporary BMPs for erosion and pollu0on source control.
According to Ontario’s Municipal Code Sec.on 6-6.505: Best Management Prac.ces, all construc0on projects have the poten0al to have an adverse impact on Ontario’s stormwater drainage system; therefore, projects shall implement appropriate construc0on and post-construc0on BMPs, as listed in their Stormwater Quality Management Plan or the “California Stormwater Best Management Prac0ce Handbook”.
San Bernadino County Stormwater Program
On January 29th, 2010, the Santa Ana RWQCB issued an area wide MS4 permit to the County and municipali0es (County Flood Control District and incorporated ci0es) establishing water discharge requirements for stormwater entering municipal storm drainage systems. According to the “Technical Guidance Document for Water Quality Management Plans (WQMP)”, requires the following for program compliance:
1) Develop site design measures using low impact development (LID) principals; 2) Establish project-specific design capture volume and applicable hydrologic condi0ons of concern requirements;
3) Evaluate feasibility of on-site LID BMPs
4) Maximize hydrologic source control, infiltra0on, and biotreatment BMPs; 5) Select applicable source control BMPs;
6) Address post-construc0on BMP maintenance requirements; 7) Implement short-term construc0on BMPs for erosion and sediment control as well as waste and materials; management for pollutant source control during construc0on.
Flood Control - Federal Emergency Management Agency (FEMA) FEMA is a Federal agency that oversees floodplains and the Na0onal Flood Insurance Program (NFIP), adopted under the Na0onal Flood Insurance Act of 1968. FEMA provides flood management protec0ons set forth by their adopted standards. In addi0on, FEMA has developed the Na0onal Flood Hazard Layer (NFHL) to assist local jurisdic0ons with flood poten0al iden0fica0on.
City of Ontario
- Master Plan of Drainage: Ontario’s Master Plan of Drainage was adopted in March 2012 for the purpose of providing an updated MPD for Ontario’s “Old Model Colony”, a 37.2-acre area within urbanized areas of Ontario. The master plan is based on applicable standards and criteria within exis0ng planning documents.
The drainage plan addresses the development of hydrological systems within Ontario to eliminate deficiencies; achieve flood protec0on and water quality goals; and implement facili0es needed to improve Ontario’s drainage system.
- NPDES Program: Ontario’s Environmental Service Sec0on is responsible for the implementa0on of Ontario’s NPDES Program for appropriate pollu0on source control and educa0on to minimize stormwater pollu0on; reduce pollutants in stormwater runoff; reduce impacts of increased runoff from new development; and, promote on-site rainwater reten0on and infiltra0on.
662
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 123
- Flood Control: Ontario’s Municipal Code contains policies regarding Flood Damage Preven0on and Stormwater Drainage Systems that are applicable to the proposed Project:
o Title 8, Chapter 13: Flood Damage Preven.on Program: This program applies to all areas of special flood hazards, areas of flood-related erosion hazards, and areas of mudflow hazards in Ontario. It includes standards for construc0on, for u0li0es, subdivisions, manufactured homes, and floodways. Construc0on standards include requirements for anchoring, floodproofing, and minimum eleva0ons of floors. o Title 6, Chapter 6: Stormwater Drainage Systems: Sec0on 6-6.206 prohibits specified types of discharges into Ontario’s stormwater drainage system or into any street leading to the drainage system.
Sec0on 6-6.208 requires that any persons conduc0ng ac0vi0es that could poten0ally contribute to stormwater pollu0on comply with all applicable BMPs as listed in the California Stormwater Best Management Prac0ce Handbooks or the current San Bernardino County Stormwater Program’s “Report of Waste Discharge,” to reduce pollutants in stormwater runoff and reduce non-stormwater discharges to Ontario’s stormwater drainage system to the maximum extent prac0cable or to the extent required by law. Sec0ons 6-6.501 through 6-6.506 govern discharges into stormwater from construc0on ac0vi0es.
10.2 Exis6ng Condi6ons
Regional Hydrology
The Project is within the Chino Creek sub watershed, part of the western por0on of the Santa Ana River Watershed. The Chino Creek sub watershed encompasses mul0ple coun0es including Riverside, Los Angeles, and San Bernadino, draining a basin of approximately 218 square miles from the San Gabriel Mountains to the Santa Ana River (2050 Ontario Plan 2022). The sub watershed and tributary areas were intensely developed with residen0al, industrial, and agricultural uses prior to the implementa0on of NPDES program for water quality; therefore, appreciable unfiltered surface flows from exis0ng development discharge into receiving waters, creeks and tributaries, within the Chino Creek sub watershed. This results in highly polluted receiving waters and impacted beneficial uses under exis0ng condi0ons.
Local Hydrology
Currently, Ontario maintains 136 miles of storm drains within the service area of Ontario’s Municipal U0li0es Company. Drainage within the boundaries of the Project flows generally from the north toward the southeast within curbed gu@ers, inlets and catch basins. The Project is approximately 150 feet west of Cucamonga Channel, at Riverside Drive. Riverside Drive flows generally from the north in a southeast direc0on into the Cucamonga Channel. Due to exis0ng topography and proximity, the Project has poten0al to contribute to the Cucamonga Channel, an impaired waterbody, as listed below in Table 20: Listed Impaired Water Bodies.
Surface Waters
Surface water quality is monitored throughout Ontario by the City and the Santa Ana River RWQCB. As shown within Table 20: Listed Impaired Water Bodies, surface water quality is monitored for the following receiving water bodies: Cucamonga Creek, San Antonio Creek, Chino Creek, Prado Basin Management Zone, and Prado Park Lane. According to The Ontario Plan, “all City and State storm drain facili0es within Ontario discharge to regional facili0es owned and operated by San Bernadino County Flood Control District” (The 2050 Ontario Plan EIR, 2022). Table 20: Listed Impaired Water Bodies are surface water bodies that do not meet water quality objec0ves established by the State and are not suppor0ng beneficial uses within these receiving waters. These water bodies are reported to the State pursuant to Sec0on 303(d) of the Clean Water Act; once placed on the 303(d) list of impaired waters, the State regulates each pollutant causing impairment to the water body (The 2050 Ontario Plan EIR, 2022). This results in targeted pollu0on control within local NPDES permits. 663
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 124
TABLE 20: LISTED IMPAIRED WATER BODIES
Name of Water Body Pollutants of Concern
Cucamonga Creek, Reach 1 Zinc, copper, cadmium, lead
San Antonio Creek pH
Chino Creek, Reach 2 Indicator bacteria, pH
Chino Creek, Reach 1B Nutrients, indicator bacteria, COD Prado Basin Management Zone pH
Prado Park Lane Nutrients, indicator bacteria
Source: The 2050 Ontario Plan EIR, 2022.
Groundwater
Ontario obtains groundwater from the Chino Groundwater Basin. There are several groundwater contamina0on plumes that impact Ontario’s groundwater supply. Efforts to remediate groundwater contamina0on are being addressed through the Chino Basin Watermaster 2020 State of the Basin Report. In addi0on to groundwater contamina0on, groundwater levels have decreased between 10 to 30 feet in the eastern por0ons of Ontario between 2000 and 2020; in the western por0on of Ontario, groundwater has increased by approximately 10 feet. Changes to groundwater levels are a@ributed to overall fluctua0ons in groundwater flows and increased use of recycled water over 0me (The Ontario Plan, 2022).
Flood Zones
The Project is within several FEMA-designated flood zones including Zone X, a 0.2% annual chance flood hazard and Zone D, where flooding poten0al is currently undetermined but possible. The Project is par0ally within an area subject to 100-year flooding and par0ally within areas subject to 500-year flooding. Por0ons of the Project along Euclid Avenue, as well as most of Ontario, are located within the 100-year floodplain, indica0ng shallow flooding of 1 to 3 feet deep during 100-year storm events of which there is a 0.2% chance annually. Por0ons of the Project west of Euclid Avenue are within a 500-year floodplain. See Figure 8: Flood Zones within the Project Alignment.
Dam Inunda.on Zones
The en0re Project is located within the dam inunda0on zone for the San Antonio Dam (The 2050 Ontario Plan 2022). Typically, the reservoir behind the dam is dry, but can fill up to 11,880 acre-feet of water aFer large storm events.
10.3 Project Impacts
a) Violate any water quality standards or waste discharge requirements or otherwise substanally degrade surface or ground water quality?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. The Project will result in approximately 11.8 acres of temporary disturbance (384,400 cubic feet of earthwork). Possible sources of pollu0on during construc0on are derived from airborne dust, emissions, materials used during construc0on, and debris that may enter Ontario’s storm drain system via unfiltered surface flows or wind. Construc0on will involve approximately 60 to 80 linear feet of ac0ve construc0on each day and will include temporary stabiliza0on with moisture control and covering to stabilize disturbed surfaces during working hours. During non-working hours, backfill and trench plates will be used to stabilize disturbed soils. Construc0on will begin with the removal of exis0ng stable surfaces within the APE. Proposed water mains will be constructed using open trench methods and Project plans show disturbed surfaces will be restored to pre-project condi0ons or be@er aFer construc0on. Proposed construc0on ac0vi0es such as saw cuVng pavement/hardscape, grading, trenching, materials import/export, tree maintenance, and deeper earthwork for pipe beds for recycled water mains six feet below ground surface will make the APE 664
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 125
temporarily more suscep0ble to erosion, which is a poten0ally significant temporary impact. Construc0on will also generate dust and debris that could enter surface water runoff, which is a poten0ally significant temporary impact.
Construc0on impacts will require implementa0on of temporary water quality BMPs during ac0ve construc0on according to City standards to pollutants from entering Ontario’s storm drain system. Examples of applicable BMPs include adequate spill response/containment, installa0on of upstream sediment control devices, downstream filtered storm drain inlets, covered stockpiles, regular sweeping at track out points, and solid waste management within covered receptacles. Upon comple0on of construc0on, the contractor will permanently restore/stabilize surfaces and there will be no long-term impacts from the Project to water quality.
Implementa0on of Ontario’s standard BMPs for water quality during construc0on would reduce dust and debris resul0ng in less than significant impacts.
Throughout construc0on ac0vi0es, the Project will comply with Ontario’s Municipal MS-4 Stormwater Permit.
The General Construc0on Permit requires that Ontario and the contractor implement BMPS through an approved SWPPP pursuant to Mi0ga0on Measure MM HYDRO-01: SWPPP. The SWPPP is required as part of the standard applica0on of Ontario’s plan check process that will require appropriate BMPs are shown on plans. The standard applica0on of Ontario’s inspec0on process will verify that the SWPPP is implemented according to the approved plans for the Project during construc0on. BMPS will include dust control measures, temporary erosion control, moisture control stabiliza0on of disturbed surfaces, regular sweeping/cleaning construc0on entrances/exits, storage of poten0ally hazardous materials including secondary containment, and the installa0on of storm drain inlet protec0on. BMPs will be implemented throughout construc0on to control sediment, erosion, and hazardous materials contamina0on, which would otherwise occur as indirect impacts to receiving waters and beneficial uses of water bodies from construc0on. BMPs would prevent pollutants from reaching receiving water bodies including Cucamonga Channel and Santa Ana River.
For the reasons above, the Project impacts related to violation of any water quality standard or waste discharge requirements or otherwise substantially degrade surface or ground water quality are less than significant with the implementation of Mitigation Measure MM HYDRO-01: SWPPP.
MITIGATION:
MM HYDRO-01: SWPPP
b) Substanally decrease groundwater supplies or interfere substanally with groundwater recharge such that the Project may impede sustainable groundwater management of the basin? DISCUSSION OF EFFECTS:
No Impact. See Sec0on 10.3, Discussion of Effects a). The Project will not impede sustainable groundwater management, result in substan0ve changes in groundwater supplies, or interfere substan0ally with groundwater recharge. The Project will extend Ontario’s recycled water conveyance system and provide connec0ons for irriga0on with recycled water to exis0ng parks and open space. The Project will support sustainable long-term irriga0on to the Euclid Avenue Historic Property and other important open space and community facili0es.
Construction may temporarily increase water demand from Ontario’s existing adjacent potable water system; however, this increase is temporary for construction and is not anticipated to be substantial due to the size of the Project and the anticipated intermittent use of water during the various construction activities. Upon completion of Project construction, the area will return to pre-Project conditions and will result in no substantive changes to impervious surfaces, topography, groundwater use or recharge. The Project will have no negative 665
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 126
impacts on water demand, since the Project will utilize recycled water and does not propose to irrigate infrastructure beyond existing conditions.
For the reasons above, the Project will not substantially decrease groundwater supplies or interfere substantially with groundwater recharge such that the Project may impede sustainable groundwater management of the basin. No impacts are anticipated.
MITIGATION:
None required.
c) Substanally alter the exisng drainage paOern of the site or area, including through the alteraon of the course of a stream or river or through the addion of impervious surfaces, in a manner which would:
result in a substanal erosion or siltaon on- or off-site; DISCUSSION OF EFFECTS:
Less than Significant Impact. See Discussion of Effects 5.10.3, a). The Project is not within proximity to a stream or river and only proposes construc0on within developed City ROW. The Project will require earthwork for construc0on of water mains and lateral connec0ons and will not permanently change exis0ng drainage pa@erns or runoff volumes. The Project will implement MM HYDRO-01: SWPPP during construction to protect water quality in surface waters during construction. The Project will return disturbed surfaces to pre-project conditions and will not permanently change the direction or volume of surface flows discharging into the municipal storm drain system or involve direct modification of the topography or additional impervious surfaces within the Project APE.
For the reasons above, the Project will not conflict with exis0ng drainage condi0ons which have been approved by Ontario and the county. Less than significant impacts will occur regarding substan0al increases in the rate or amount of surface runoff. Permanent changes in surface condi0ons within the APE are not proposed and the Project would not result in substan0al erosion or silta0on on- or off-site during construc0on due to implementa0on of the SWPPP.
MITIGATION:
None required.
i. substanally increase the rate or amount of surface runoff in a manner which would result in flooding onor offsite; DISCUSSION OF EFFECTS:
Less than Significant Impact. See Sec0on 10.3, Discussion of Effects a) through c) i) above. The Project will not permanently alter the rate or amount of runoff because plans for the Project show that surfaces will be returned to pre-project condi0ons with no permanent changes in exis0ng topography and impervious surfaces. Therefore, less than significant impacts are anticipated related to the amount of surface runoff and flooding either on- or off-site. No Mitigation Measures are needed.
MITIGATION:
None required.
ii. create or contribute runoff water which would exceed the capacity of exisng or planned stormwater drainage systems or provide substanal addional sources of polluted runoff; or DISCUSSION OF EFFECTS:
Less than Significant Impact. See Sec0on 10.3, Discussion of Effects a) through c) ii. The Project would not result in permanent changes to topography, impervious surfaces, drainage patterns or land use. Areas disturbed 666
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 127
during construction will be returned to pre-Project conditions after construction and will remain substantially consistent with existing conditions. The Project will implement temporary BMPs for management of debris and pollution that could enter runoff during construction so that the Project will not contribute additional pollution in runoff. The Project will implement pollution source control BMPs to protect water quality during construction.
After construction the APE will return to pre-Project conditions. The Project will not result in substantive new permanent sources of pollution. Implementation of BMPs during construction will be verified during the standard application of Ontario’s construction inspection process and will result in runoff conditions that are substantially like existing conditions.
MITIGATION:
None required.
iii. impede or redirect flood flows?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. See Sec0on 10.3, Discussion of Effects a) through c) iii above.
According to the FEMA Flood Hazard Map, the Project and portions of the Local Vicinity are in a designated 100- year flood zone that may experience temporary flooding during and after storms (FEMA 2015; The Ontario Plan 2022). (See Figure 8: Flood Zones). Implementa0on of the Project will not change surface drainage or the flood zone classifica0on; In addi0on, Project construc0on is not an0cipated to result in impacts due to the implementa0on of the City-approved SWPPP and MM HYDRO-02: Limita.on on Construc.on During Storm Events, which ensures Project construc0on is not performed during storm events. Since the Project does not propose to impede or redirect flood flows, impacts are considered less than significant with the implementation of MM HYDRO-02: Construc.on During Storm Events.
MITIGATION:
MM HYDRO-02: Construc.on During Storm Events.
d) In flood hazard, tsunami, or seiche zones, risk release of pollutants due to Project inundaon? DISCUSSION OF EFFECTS:
Less Than Significant Impact. See Sec0on 10.3, Discussion of Effects a) through c) iv above. The California Department of Conserva0on does not place the Project within a zone at risk for a tsunami (CA Department of Conversa0on, 2015). The Project is within southwestern San Bernardino County, which is not geographically close to ocean or large bodies of water. The Project will implement MM HYDRO-02: Limita.on on Construc.on during Storm Events so that construc0on areas are secure, and no construc0on will occur during storms and flooding. The Project will implement MM HAZ-02: Hazards and Hazardous Materials Manifest and Plan for proper handling, storage and containment of poten0ally hazardous materials.
For the reasons above, the proposed Project will not have significant impacts related to release of pollutants due to Project inunda0on in a flood hazard, tsunami or seiche zone. Therefore, no Mi0ga0on Measures are needed.
MITIGATION:
MM HYDRO-02: Limita.on on Construc.on during Storm Events and MM HAZ-02: Hazardous Materials Manifest and Plan
e) Conflict with or obstruct implementaon of a water quality control plan or sustainable groundwater management plan?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. See Sec0on 10.3, Discussion of Effects a) through d) above.
The Project will follow current requirements for pollution source control and flood control. The Project will extend Ontario’s recycled water system and convert landscape irrigation of city parks and public open space 667
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 128
from potable water to recycled water; therefore, the Project is consistent with policies of sustainable groundwater management. A Storm Water Pollution Prevention Plan (SWPPP) will be incorporated into Project specifications. In addition, the Project contractor will implement pollution source control measures including erosion control pursuant to Mitigation Measure MM HYDRO-01: SWPPP. For these reasons, Project impacts are less than significant with mitigation incorporated during construction activities.
MITIGATION:
MM HYDRO-01: SWPPP.
668
!(
!(
*# *#
*# *#
*#
*# *# *#
E
u
clid
A
v
e
n
u
e
E
u
clid
A
v
e
n
u
e
E Holt Blvd.
E 4th Street
W D Street
E B Street
E C Street
L
e
m
o
n
A
v
e.
N
S
a
n
A
n
t
o
nio
A
v
e.
East E Street
W Flora Street W F St. N
Vin
e
A
v
e
n
u
e
W 4th Street
E Walnut Street
E Riverside Drive
E
u
clid
A
v
e
n
u
e
State Route 60
Mission Blvd.
E Francis Street
Esri, HERE, Garmin, (c) OpenStreetMap contributors, and the GIS user community Figure 8. Flood Zones within the Project Alignment
OntarioMunicipal Utilities Company
Euclid Avenue Recycled Water System Project
Legend
0.2% Annual Chance Flood Hazard
1% Annual Chance Flood Hazard
Area with Reduced Risk Due to Levee
Proposed Recycled Water Pipeline
Segment 1
Segment 2
Segment 4
Segment 5
Segment 6
Conversion of Existing Potable Water Pipeline to RW
Segment 3
Segment 6
!( IEU Connection Point
*# Recycled Water Lateral
669
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 130
11. LAND USE AND PLANNING
11.1 Regulatory Compliance
Ontario Municipal Code
The Ontario Municipal Code iden0fies six special policy overlay zones: Agriculture (AG), Euclid Avenue (EA), Emergency Shelter (ES), Mul0modal Transit Center (MTC), Interim Community Commercial (ICC), and Affordable Housing (AH) that apply special regula0ons within specific areas in addi0on to the general regula0ons established in the Municipal Code, The Ontario Plan, and the Zoning and Development Code. The Project Alignment is within the Euclid Avenue (EA) special policy overlay zone.
Downtown Design Guidelines
Ontario adopted the Downtown Design Guidelines on August 18th, 1998, to establish standards and support decision-making that enhances the character within Downtown Ontario. The Downtown Design Guidelines apply to proper0es that abut the Project along N. Vine Avenue, Sultana Avenue, and I Street. These guidelines are u0lized by Ontario’s Project Sponsors and decision-makers, Planning Commission and Development Advisory Board, Planning Staff, and Neighborhood Groups, who are responsible for incorpora0ng aesthe0c guidelines into project designs for construc0on or rehabilita0on and help preserve the characteris0cs that are valued within the community (Ontario Downtown Design Guidelines).
Euclid Avenue Overlay District
The purpose of the Euclid Avenue Overlay District “is to recognize and protect Euclid Avenue as an important scenic and historic resource of Ontario, as a dominant feature in Ontario’s historic downtown” (Ontario Development Code 2020). The following provisions apply to all exis0ng and new building, construc0on, addi0ons, remodels, or realloca0ons, whether a building permit is required, or other similar en0tlement by the City:
- Cer.ficate of Appropriateness Required (City of Ontario Development Code – Chapter 6): A development project within the EA Overlay District, which requires Development Plan approval pursuant to Sec0on 4.02.025 (Development Plans) of this Development Code, shall require the approval of a Cer0ficate of Appropriateness pursuant to Sec0on 4.02.050 (Historic Preserva0on—Cer0ficates of Appropriateness and Demoli0on of Historic Resources)
Borba Village Specific Plan Area
The Borba Village Specific Plan Area is planned to support mul0-family residen0al and neighborhood commercial development. The main objec0ves of the Borba Village Specific Plan Area are to meet the following key objec0ves:
- To assure that Borba Village is compa0ble with and complementary to the established community surrounding the project site within Ontario.
- To create a livable master-planned community with long term viability comprised of residen0al neighborhoods linked to open space and the surrounding community uses and designed to create a sense of place for its residents.
- To create a community encouraging interac0on among its residents by providing an organized system of streets and entries offering opportuni0es for residents to walk to open space, recrea0on, commercial, and transporta0on facili0es.
- To create a planned community of appropriate density and scale this respects the exis0ng physical environment surrounding the project site.
670
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 131
- To establish appropriate rela0onships between new neighborhoods within the planned community and adjacent exis0ng residen0al and commercial land uses.
- To provide a circula0on network encouraging pedestrian ac0vity while facilita0ng appropriate vehicular movement throughout the project site.
11.2 Exis6ng Condi6ons
The Northern Por0on of the Project Alignment is within the Euclid Avenue Overlay District, and the Southern Por0on of the Project is within the Old Model Colony area of Ontario and adjacent to the west of the Borba Village Specific Plan Area. Land use surrounding the northern por0on of the Project consists of mostly residen0al and mixed-use; laterals are adjacent to parkland/ open spaces, transporta0on corridors within Ontario’s downtown, mul0-family residen0al, and public facili0es including the Ovi@ Family Community Library, Ontario City Hall, and the Ontario Senior Center. Surrounding the Southern Por0on of the Project APE are mostly residen0al communi0es north of Riverside Drive and agricultural land use south of Riverside Drive. Reference Table 1. Surrounding Land Use and Table 2. Surrounding Land Use Within Local Vicinity of the Project Alignment.
11.3 Project Impacts
a) Physically divide an established community?
DISCUSSION OF EFFECTS:
No Impact. This Project will not result in permanent above-ground improvements that will physically divide the established community. The Project will be implemented within existing City ROW including developed roads, portions of the Euclid Avenue median, street parkways, and portions of parcels developed with James R. Bryant Park, Centennial Park, and Ontario Town Square Park. The Project involves open-trench installation of new recycled water mains and connections for existing irrigation systems resulting in temporary and intermittent disturbance of existing conditions of streets within the APE during construction. Detours approved with the Transportation Control Plan will facilitate safe and continuous access and ongoing primary use within the APE and adjacent areas. There are numerous locations for detours within the nearby existing street grid in the Local Vicinity. In compliance with The Ontario Plan and WMP, the Project will extend Ontario’s recycled water system for sustainable landscape irrigation and reduction in reliance on potable water for irrigation. Construction will avoid existing utilities and structures and will provide sustainable irrigation for permanent maintenance of public open space that enhances the entire community.
For the reasons above, the Project will not physically divide the community or substantively modify existing or approved land use. The Project will facilitate implementation of the approved land use patterns in The Ontario Plan Land Use Map. Impacts are considered to be less than significant.
MITIGATION:
None required.
671
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 132
b) Cause a significant environmental impact due to a conflict with any land use plan, policy, or regulaon adopted for the purpose of avoiding or migang an environmental effect? DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. See Aesthe0cs Sec0on 1, Cultural Resources Sec0on 5, Geology and Soils Sec0on 7, Hazardous Materials Sec0on 9, Hydrology Sec0on 10, and Land Use and Planning Sec0on 11, Discussion of Effects a).
The Project will be implemented in a manner that is consistent with city and regional land use plans, policies, and regula0ons for environmental protec0on. The Project is proposed to support conserva0on and sustainability goals of The Ontario Plan. The Project is aligned with previously approved objec0ves for Ontario’s planned recycled water system outlined in the WMP for reduced reliance on potable water use for landscape irriga0on. The Project will implement mi0ga0on measures to reduce poten0ally significant impacts on aesthe0cs, cultural resources, geology and soils, hazardous materials, hydrology and water quality, land use, and tribal cultural resources to less than significant levels; it will not conflict with any land use plan, policy or regula0ons
MITIGATION:
MM AES-01 through MM AES-10.
672
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 133
12. MINERAL RESOURCES
12.1 Regulatory Compliance
The California Surface Mining and Reclama.on Act of 1975 The County of San Bernadino and City of Ontario iden0fy poten0al mineral resources within their General Plan documents pursuant to the California Surface Mining and Reclama0on Act of 1975 (SMARA). The Act establishes requirements for mining and reclama0on policy to ensure the following:
- Produc0on and conserva0on of minerals is encouraged;
- Environmental effects are prevented or minimized;
- Considera0on is given to recrea0onal ac0vi0es, watersheds, wildlife, range and forage, and aesthe0c enjoyment;
- Mined lands are reclaimed to a useable condi0on once mining is completed; and - Hazards to public safety both now and in the future are eliminated.
The Act requires local jurisdic0ons in California to classify land that has poten0al for the discovery of mineral resources called Mineral Resource Zones (MRZs). According to the California State Board’s Guidelines for Classifica0on and Designa0on of Mineral Lands, the following MRZ designa0ons are below:
- MRZ-1: Areas where available geologic informa0on indicates that there is minimal likelihood of significant resources.
- MRZ-2: Areas underlain by mineral deposits where geologic data indicate that significant mineral deposits are located or likely to be located.
- MRZ-3: Areas where mineral deposits are found but the significance of the deposits cannot be evaluated without further explora0on.
- MRZ-4: Areas where there is not enough informa0on to assess the zone. These are areas that have unknown mineral resource significance.
- SZ: Areas containing unique or rare occurrences of rocks, minerals, or fossils that are of outstanding scien0fic significance shall be classified in this zone.
The State Office of Mining Reclama0on (OMR) and County Public Works Department monitors all mining ac0vi0es within San Bernadino County to ensure opera0ons are compliant with applicable laws.
12.2 Exis6ng Condi6ons
The Project is located within fully developed areas of Ontario ROW; mining opera0ons do not occur within city limits. Within the City of Ontario, there are two areas classified as MRZ-2; one within the northwestern part of Ontario, where a por0on of the Project APE is proposed (between 4th Street at Euclid Avenue to D Street at Euclid Avenue), and the second along the eastern City boundary, approximately 4.5 miles northeast from the Southern Por0on of the Project APE along Riverside Drive (Ontario Plan GP EIR 2021). The areas within city limits classified under MRZ-2 total 6,132 acres (approximately 19 percent of Ontario). The remaining areas of Ontario are classified as MRZ-3, where the significance of mineral deposits is unknown.
673
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 134
12.3 Project Impacts
a) Result in the loss of availability of a known mineral resource that would be a value to the region and the residents of the state?
DISCUSSION OF EFFECTS:
Less than Significant Impact. The Project will improve Ontario’s recycled water system and will reduce reliance on potable water for irriga0on; it does not directly propose changes in land use that will affect the availability of or demand for a known mineral resource and is consistent with the approved buildout of The Ontario Plan as well as regional plans for this area; Although the Project is located within an area classified by the City of Ontario as MRZ-2 zone for mineral resources, Project implementa0on will not result in significant impacts to loss of availability of known mineral resources. The Project will not affect mineral resources beyond what was iden0fied in the cer0fied GP EIR. The Project is proposed within areas that are currently developed City ROW, with a considerable por0on of the Project located within Euclid Avenue which was developed as an arterial since the late 1800’s. The Project will comply with SMARA regula0ons; since the Project does not threaten the poten0al to extract minerals in the area, Ontario is not required to prepare a statement specifying its reasons for permiVng the proposed Project and use.
The Project will not result in altera0ons beyond what has been previously approved and considered under The Ontario Plan and would not result in the loss of availability of a known mineral resource in Ontario.
Impacts to mineral resources are less than significant.
MITIGATION:
None required.
b) Result in the loss of availability of a locally important mineral resource recovery site delineated on a local general plan, specific plan or other land use plan? DISCUSSION OF EFFECTS:
No Impact. See Discussion of Effects 5.12.3 a). There are no locally important mineral resource recovery sites delineated within city limits. The Project would not conflict with Ontario’s exis0ng land use, zoning and General Plan designa0ons at its loca0on. Therefore, Project implementa0on will not result in the loss of availability of a locally important mineral resources recovery site delineated on a local general plan or other land use plan. No impacts are an0cipated.
MITIGATION:
None required.
674
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 135
13. NOISE
13.1 Regulatory Compliance
Federal Noise Control Act of 1972
In 1972, the U.S. Environmental Protec0on Agency (EPA) Office of Noise Ambient and Control issued the Federal Noise Control Act, which established programs and guidelines to iden0fy and address the effects of noise on public health, welfare, and the environment. The EPA established Levels of Environmental Noise and recommended that Ldn (day–night 24-hr average noise level) should not exceed 55 dBA outdoors or 45 dBA indoors to prevent significant ac0vity interference and annoyance in noise-sensi0ve areas. 55 dBA was iden0fied as an “adequate margin of safety” for noise level increase rela0ve to a baseline noise exposure level of 55 dBA Ldn, which applies a 10-dBA penalty to nighVme levels between the hours of 10:00 PM and 7:00 AM to account for sleep disrup0on and no penalty applied to day0me levels. The U.S. EPA recommends a second exposure limit of 70 dBA to prevent hearing loss (U.S. EPA 1974). The standards set by the EPA’s Federal Noise Control Act are advisory exposure levels below which there would be no risk to a community from any health or welfare effect of noise.
In 1981, EPA administrators determined that subjec0ve issues such as noise would be be@er addressed at lower levels of government. Consequently, in 1982 responsibili0es for regula0ng noise control policies were transferred to State and local governments. However, noise control guidelines and regula0ons contained in EPA rulings in prior years remain in place by designated Federal agencies, allowing more individualized control for specific issues by designated Federal, State, and local government agencies.
The Ontario Plan
The noise related goals and policies from Ontario’s General Plan that are applicable to the proposed Project are provided below.
- Goal S-4: An environment where noise does not adversely affect the public’s health, safety, and welfare.
o S-4.1 Noise Mi.ga.on. We u0lize Ontario’s Noise Ordinance, building codes, and subdivision and development codes to mi0gate noise impacts.
o S-4.4 Truck Traffic. We manage truck traffic to minimize noise impacts on sensi0ve land uses.
Ontario Municipal Code
Applicable noise policies within Ontario’s Municipal Code consist of the following:
- Sec.on 5-29.04 Exterior Noise Standards. Project construc0on noise is exempt from the Exterior Noise Standards per Sec0on 5-29-06 (d) “noise sources associated with construc0on, repair, remodeling, demoli0on or grading of any real property. Such ac0vi0es shall instead be subject to the provisions of Sec0on 5-20.09.”
- Sec.on 5-29.09 Construc.on Ac.vity Noise Regula.ons
o No person, while engaged in construc0on, remodeling, digging, grading, demoli0on, or any other related building ac0vity, shall operate any tool, equipment or machine in a manner that produces loud noise that disturbs a person of normal sensi0vity who works or resides in the vicinity, or a Police or Code Enforcement Officer, on any weekday except between the hours of 7:00 AM and 6:00 PM or on Saturday or Sunday between the hours of 9:00 AM and 6:00 PM.
675
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 136
o No landowner, construc0on company owner, contractor, subcontractor, or employer shall permit or allow any person or persons working under their direc0on and control to operate any tool, equipment, or machine in viola0on of the provisions of this sec0on. o Excep0ons:
a) The provisions of this sec0on shall not apply to emergency construc0on work performed by a private party when authorized by the City Manager or his or her designee. b) The maintenance, repair or improvement of any public work or facility by public employees, by any person or persons ac0ng pursuant to a public works contract, or by any person or persons performing such work or pursuant to the direc0on of, or on behalf of, any public agency; provided, however, this excep0on shall not apply to the City, or its employees, contractors or agents, unless:
I. The City Manager or a department head determines that the maintenance, repair or improvement is immediately necessary to maintain public services, II. The maintenance, repair or improvement is of a nature that cannot feasibly be conducted during normal business hours, or
III. The City Council has approved Project specifica0ons, contract provisions, or an environmental document that specifically authorizes construc0on during hours of the day that would otherwise be prohibited pursuant to this sec0on; and IV. Any construc0on that complies with the noise limits specified in Sec0on 5-29.04 or 5-
29.05. Sec.on 5-29.10. Other public agency excep.ons. The provisions of this chapter shall not be construed to prohibit any work at different hours by or under the direc0on of any other public agency or public or private u0lity companies in cases of necessity or emergency.
13.2 Exis6ng Condi6ons
Sensi0ve land uses that may be affected by Project noise during construc0on within the APE include exis0ng residen0al uses located adjacent or near the Project along Euclid Avenue; F Street; Vine Avenue; Flora Street; C Street; and Riverside Drive. Other nearby sensi0ve receptors include 12 schools, three churches and one hotel that are depicted in Figure 2A and 2B: Local Vicinity and in Table 3: Surrounding Adjacent Land Uses at Project Segments and Table 4: Surrounding Land Use and Facili/es Within the Local Vicinity of the Project. These include Chaffey High School and Vina Danks Middle School, located approximately 0.1 miles from the Project along 4th Street, Champions at Euclid Elementary, the American Inn, First United Methodist Church, First Lutheran Church Ontario, and the Central Language Academy, located approximately 0.1 miles from Project along Euclid Avenue, and the St. George School and St.
George Catholic Church, located approximately 0.2 miles from Project along Euclid Avenue; San Antonion School, located approximately 0.2 miles from Project along Euclid Avenue; and Woodcrest Junior High School and Liberty Elementary School, located approximately 0.4 miles from Project along Riverside Drive, Heavenly Care Daycare, Banal Na Pag Aral, and Preschool School and Sunrise Children Center, located approximately 0.1 miles from Project along Riverside Drive, and Live Oak Preschool, located approximately
0.2 miles from Project along Riverside Drive. See Table 1: Surrounding Land Uses Within the Local Vicinity of the Project Alignment.
Ambient (background) noise levels of the exis0ng environment at the Project were measured using an American Na0onal Standards Ins0tute (ANSI Sec0on S1.4 2014 Class 1) Larson Davis model LxT sound level meter. Based on the eleven (11) 15-minute day0me noise measurements taken between 12:40 PM and 7:55 PM on January 31, 2024, short-term ambient noise levels ranged between 51.6 and 74.7 dBA Leq. 676
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 137
The dominant noise source was vehicle traffic associated with E. Riverside Drive, E. C Street, W. Flora Avenue, N. Vine Avenue, W. F Street, N. Euclid Avenue, 4th Street, and other surrounding roadways, emergency vehicles, air traffic, and residen0al ac0vity.
13.3 Project Impacts
The Discussion of Effects in this sec0on are based on the Noise Impact Analysis for Euclid Avenue Recycled Water System Project conducted by Ganddini Group, dated February 21, 2024 (Appendix F). Results from the noise impact analysis are based on the eleven (11) 15-minute day0me noise measurements taken between 12:40 PM and 7:55 PM on Tuesday, January 23, 2024, for the purposes of documen0ng exis0ng ambient noise levels at the Project. Loca0ons for the noise measurements are shown in Figure 9-9A: Noise Measurements.
a) Genera/on of a substan/al temporary or permanent increase in ambient noise levels in the vicinity of the Project in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. Project construc0on is exempt from the Ontario noise ordinance standards pursuant to Sec.on 5-29.09 Construc.on Ac.vity Noise Regula.ons c) 1).
Construc0on noise was analyzed using methodology presented in the Federal Transit Administra0on (FTA) Transit Noise and Vibra0on Impact Assessment Manual (2018) together with several key construc0on parameters, including distance to each sensi0ve receiver, equipment usage, percent usage factor, and baseline parameters for the Project APE. For residen0al uses, the day0me noise threshold is 80 dBA Leq averaged over an 8-hour period (Leq (8-hr); and the nighVme noise threshold is 70 dBA Leq (8-hr). For commercial uses, the day0me and nighVme noise threshold is 85 dBA Leq (8-hr).
Construc.on Noise On-Site Sources (Noise from Construc.on Ac.vi.es Occurring in the APE) Modeled construc0on noise levels, outlined within Table 21: Construc/on Noise Levels (dBA Leq) In Light of FTA Thresholds, indicates construc0on noise levels could exceed FTA thresholds of significance on a short-term and intermi@ent basis for residen0al and commercial land use adjacent to the Project; this is a poten0ally significant impact. Construc0on noise modeling indicates temporary noise during construc0on will reach up to 89.3 dBA Leq at the property line of the nearest receptors along Segment 1,
93.0 dBA Leq at the property line of the nearest receptors along Segment 2, 93.3. dBA Leq at the property line of the nearest receptors along Segment 3, and 90.7 dBA Leq at the property line of the nearest receptors along Segment 4 of the Project. In addi0on, modeled construc0on noise levels may reach up to
84.2 dBA Leq at the nearest structures along Segment 1, 91.8 dBA Leq at the nearest structures along Segment 2, 92.2 dBA Leq at the nearest structures along Segment 3, and 89.0 dBA Leq at the nearest structures along Segment 4 of the Project Site.
To minimize poten0ally significant temporary noise impacts, BMPs and mi0ga0on measures will be implemented during construc0on. BMP NOI-01: Construc.on Equipment and Mi0ga0on Measure MM NOI-01: Construc.on Noise will be implemented to ensure construc0on ac0vi0es occur within a 0meframe when noise increases would have less impact, equipment will be fi@ed with mufflers, temporary noise barriers may be used, advance no0fica0on via signage at the limits of the Project shall provide public no0ce, and prior no0ce shall be given to adjacent land uses, etc. 677
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 138
As shown in Table 22: Construc/on Noise Levels (dBA Leq) In Light of FTA Thresholds- Second Day, Project construc0on noise levels would be reduced, 3-11 dB Leq lower (76.5-83.3 dBA Leq at property lines), in associa0on with increased distance between construc0on ac0vi0es/equipment and sensi0ve land use.
Noise from construc0on is therefore considered to be intermi@ent as construc0on advances along a linear path each day and lower noise levels from construc0on occurring with increased distance between construc0on equipment and receptors. The noise analysis for the Project indicates that significant noise levels from construc0on are not expected to last more than two days at any specific receptor. With implementa0on of BMPs and mi0ga0on measures, BMP NOI-01: Construc.on Equipment and MM NOI01: Construc.on Noise Project construc0on noise levels would not exceed the FTA residen0al (80 dBA Leq) and commercial (85 dBA Leq) thresholds.
Construc.on Noise Off-Site Sources (Noise from Construc.on Traffic) According to the CALTRANS Technical Noise Supplement to Traffic Noise Analysis Protocol, it is widely accepted that the average healthy human ear can barely perceive changes of 3 dBA in an outdoor environment and that a change of 5 dBA is percep0ble.
E. Riverside Drive currently handles approximately 12,467 average daily vehicle trips (ADTs) and Euclid Avenue currently handles approximately 2,753 ADTs in the vicinity of the Project8. According to the assump0ons found in the CalEEMod modeling data provided in the Air Quality, Greenhouse Gas, and Energy Technical Memorandum prepared for the Project (Appendix A), the greatest number of construc0on-related vehicle trips per day would be up to 32 worker trips, 2 vendor trips, and 2 haul truck trips for a total of 36 construc0on-related vehicle trips daily and could result in a 0.02 dBA CNEL increase in ambient noise levels along E. Riverside Drive and a 0.1 dBA CNEL increase in ambient noise levels along Euclid Avenue. Therefore, Project construc0on generated vehicle noise is nominal rela0ve to exis0ng roadway volumes and would not result in the doubling of traffic volume necessary to increase noise levels by 3 dBA. Therefore, increased noise from construc0on-related traffic, is a less than significant impact.
As a result, with the implementa0on of BMPs and Mi0ga0on measures for the Project, BMP NOI-01:
Construc.on Equipment and Mi0ga0on Measure MM NOI-01: Construc.on Noise, the Project will result in less than significant impact throughout on-site and off-site constric0on ac0vi0es.
MITIGATION:
BMP NOI-01: Construc.on Noise Best Management Prac.ces: Noise Reducing Barriers MM NOI-01: Construc.on Noise Management.
8 Exis6ng average daily traffic volume for E. Riverside Drive and Euclid Avenue obtained from the San Bernardino Countywide Plan Transporta6on Exis6ng Condi6ons Report (March 2017). The segment of E. Riverside Drive east of Reservoir Street and Euclid Avenue south of Vista Drive were u6lized.
678
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 139
TABLE 21: CONSTRUCTION NOISE LEVELS (DBA L EQ) IN LIGHT OF FTA THRESHOLDS Phase Noise Measure- ment Loca6on
2 Project Segment Exis6ng Use Receptor Loca6on Exis6ng Ambient Noise Levels (dBA Leq) 2 Construc6on Noise Levels Applicable FTA Threshold
3 Exceeds Threshold? Needed Reduc6on (dB)
4 Construc6on Noise Levels with Reduc6on?
5 Exceeds
Threshold? At property line At Dwelling/ Structure At property line At Dwelling/ Structure Site Prepara6on
6 NM1 4 Daycare Sunrise Children Center, 2049 E Riverside Dr 72.8 90.1 78.3 85 Yes/ No 5.1 85.0 73.2 No NM2 4 Residen6al 2944 S Meadowbrook Place & 2945 S Pinehurst Ct 74.7 90.7 89.0 80 Yes/ No 10.7 80.0 78.3 No NM3 4 Daycare/ School Heavenly Care Daycare & Preschool, 1030 Riverside Dr 71.8 89.1 86.9 85 Yes/ No 4.1 85.0 82.8 No NM4 4 Residen6al Harris Place Apartments,
451 E Riverside Dr
72.3 90.3 83.8 80 Yes/ No 10.3 80.0 73.5 No
NM5 3 Commercial/
Park
Ontario Town Square, 24 N Euclid Ave
58.9 93.3 92.2 85 Yes/ No 8.3 85.0 83.9 No
NM6 2 Residen6al/
Park
457 Beverly & James R Bryant Park
51.6 94.2 90.5 80 Yes/ No 14.2 80.0 76.3 No
NM7 2 Residen6al 526 N Vine Ave 59.9 93.0 91.8 80 Yes/ No 13.0 80.0 78.8 No NM8 2 Residen6al 312 W F Street 55.5 93.0 87.0 87.5 Yes/ No 5.5 87.5 81.5 No NM9 1 Transient Lodging
American Inn, 755 N Euclid Ave
69.4 79.9 79.5 80 Yes/ No - - - No
NM10 1 Residen6al 938 Euclid Ave 69.6 89.3 84.2 80 Yes/ No 9.3 80.0 74.9 No NM11 1 School Chaffey High School, 1245 N Euclid Ave
70.1 79.9 74.8 85 Yes/ No - - - No
Source: Ganddini, 2024, Appendix F
Notes:(1) Construc6on noise worksheets are provided in Appendix F. (2) Per measured exis6ng ambient noise levels (see Table 2 in Appendix F). (3) The FTA residen6al day6me noise threshold is 80 dBA Leq averaged over an 8-hour period (Leq (8-hr) and the commercial day6me threshold is 85 dBA Leq (8-hr). In compliance with the City’s Code, construc6on would not occur during (4) Mi6ga6on measures can include, but not be limited to, the use of alterna6ve equipment, muffled equipment, and temporary barriers. (5) As the Project was modeled as one phase (site prepara6on), the reduc6on is based on the highest needed reduc6on of ~17 dB for the residen6al and park uses along Segment 2 (457 Beverly, Ontario and James R Bryant Park).(6) As construc6on is not an6cipated to be phased, to provide a conserva6ve scenario, the en6rety of the Project has been analyzed as occurring in one construc6on phase (site prepara6on) with all proposed equipment in opera6on 679
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 140
TABLE 22: CONSTRUCTION NOISE LEVELS (DBA L EQ) IN LIGHT OF FTA THRESHOLDS- SECOND DAY Phase Noise Measure- ment Loca6on
2 Project Segment Exis6ng Use Receptor Loca6on Exis6ng Ambient Noise Levels (dBA Leq) 2 Construc6on Noise Levels Applicable FTA Threshold
3 Exceeds Threshold
? Needed Reduc6o n (dB)
4 Construc6on Noise Levels with Reduc6on?
5 Exceeds
Threshold
? At property line At Dwelling/ Structure At property line At Dwelling/ Structure Site Prepara6on
6 NM1 4 Daycare Sunrise Children Center, 2049 E Riverside Dr 72.8 81.9 75.3 85 No/ No - - - No NM2 4 Residen6al 2944 S Meadowbrook Place & 2945 S Pinehurst Ct 74.7 82.1 81.5 80 Yes/ No 2.1 80.0 79.4 No NM3 4 Daycare/ School Heavenly Care Daycare & Preschool, 1030 Riverside Dr 71.8 81.5 80.5 85 No/ No - - - No NM4 4 Residen6al Harris Place Apartments, 451 E Riverside Dr
72.3 82.0 78.9 80 Yes/ No 2.0 80.0 76.9 No
NM5 3 Commercial/
Park
Ontario Town Square, 24 N Euclid Ave
58.9 83.0 82.7 85 No/ No - - - No
NM6 2 Residen6al/
Park
457 Beverly & James R Bryant Park
51.6 83.3 82.1 80 Yes/ Yes 3.3 80.0 78.8 No
NM7 2 Residen6al 526 N Vine Ave 59.9 83.0 82.5 80 Yes/ Yes 3.0 80.0 79.5 No NM8 2 Residen6al 312 W F Street 55.5 83.0 80.6 87.5 No/ No - - - No NM9 1 Transient Lodging
American Inn, 755 N Euclid Ave 69.4 76.5 76.2 80 No/ No - - - No NM10 1 Residen6al 938 Euclid Ave 69.6 81.6 79.1 80 Yes/ Yes 1.6 80.0 77.5 No NM11 1 School Chaffey High School, 1245 N Euclid Ave
70.1 76.5 72.8 85 No/ No - - - No
Source: Ganddini, 2024, Appendix F
Notes:(1) Construc6on noise worksheets are provided in Appendix F. (2) Per measured exis6ng ambient noise levels (see Table 2 in Appendix F). (3) The FTA residen6al day6me noise threshold is 80 dBA Leq averaged over an 8-hour period (Leq (8-hr) and the commercial day6me threshold is 85 dBA Leq (8-hr). In compliance with the City’s Code, construc6on would not occur during (4) Mi6ga6on measures can include, but not be limited to, the use of alterna6ve equipment, muffled equipment, and temporary barriers. (5) As the Project was modeled as one phase (site prepara6on), the reduc6on is based on the highest needed reduc6on of ~17 dB for the residen6al and park uses along Segment 2 (457 Beverly, Ontario and James R Bryant Park).(6) As construc6on is not an6cipated to be phased, to provide a conserva6ve scenario, the en6rety of the Project has been analyzed as occurring in one construc6on phase (site prepara6on) with all proposed equipment in opera6on 680
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 141
b) Generaon of excessive groundborne vibraon or groundborne noise levels?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. The California Transporta0on and Construc0on Vibra0on Guidance Manual (CalTrans, 2020) establishes criteria for groundborne vibra0on. The guidelines recommend that the threshold at which there is a risk of architectural damage is a peak par0cle velocity (PPV) of 0.25 inches/second (in/sec) for historic buildings, PPV of 0.3 in/sec at older residen0al structures, and a PPV of 0.5 in/sec at new residen0al structures and modern commercial/industrial buildings. According to CalTrans, groundborne vibra0on becomes an annoyance when PPV of 0.4 in/sec is exceeded (CalTrans, 2020).
The closest structures to the proposed construc0on ac0vi0es include single family residen0al structures as close as 25 feet. Project construc0on will require the following equipment: two (2) scrapers, one (1) tractors/ loaders/ backhoes, two (2) off-highway trucks, two (2) plate compactors, two (2) excavators, two (2) other material handling equipment, two (2) paving equipment, two (2) other construc0on equipment, four (4) pumps, two (2) skid steer loaders, two (2) surfacing equipment, two (2) rubber-0red dozers, and two (2) cranes.
Based on the list of equipment that will be u0lized for Project implementa0on, groundborne vibra0on from construc0on has the poten0al to exceed the levels necessary to cause architectural damage, since Project equipment could be u0lized within 25 feet of an exis0ng structure. For the Project, plate compactors have the most poten0al for vibra0on impacts near an exis0ng structure. The peak par0cle velocity (PPV) per square foot associated with these vibratory plates is 0.21 at a distance of 25 feet (ee Table 23: Construc/on Equipment Vibra/on Source Levels below). The Project will implement BMPs and mi0ga0on measures, BMP NOI-01:
Construc.on Noise Best Management Prac.ces: Noise Reducing Barriers and Mi0ga0on Measures MM NOI01: Construc.on Noise Management, to ensure equipment is fi@ed with sound barriers and mufflers, and MM CUL-02: Vibra.on Monitoring, for vibra0on monitoring along the Euclid Avenue median, near CF historic resources that may be impacted by vibra0on and se@lement during excava0on/ earthworks is required.
TABLE 23: CONSTRUCTION EQUIPMENT VIBRATION SOURCE LEVELS Equipment PPV at 25 Q, in/sec Approximate Lv* at 25 Q
Pile Driver (impact) Upper range 1.518 112
typical 0.644 104
Pile Driver (sonic) Upper range 0.734 105
typical 0.170 93
Clam shovel drop (slurry well) 0.202 94
Hydromill (slurry wall) In soil 0.008 66
In rock 0.017 75
Vibratory Roller 0.210 94
Hoe Ram 0.089 87
Large Bulldozer 0.089 87
Cassion Drilling 0.089 87
Loaded Trucks 0.076 86
Jackhammer 0.035 79
Small Bulldozer 0.003 58
Notes: Based on Federal Transit Administra6on Transit Noise and Vibra6on Impact Assessment Manual, 2018. *RMS velocity in decibels, VbB re 1 micro-in/sec
Substan0al sources of groundborne vibra0on during post-construc0on Project opera0ons will include the movement of passenger vehicles and trucks on paved and generally smooth surfaces. Loaded trucks generally have a PPV of 0.076 at a distance of 25 feet (CalTrans, 2020), which is a substan0ally lower PPV than that of a vibratory roller (0.210 in/sec PPV at 25 feet).
MITIGATION:
NOI-01: Construc.on Noise Management.
MM CUL-02: Vibra.on Monitoring.
681
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 142
c) For a Project located within the vicinity of a private airstrip or an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the Project expose people residing or working in the Project area to excessive noise levels? DISCUSSION OF EFFECTS:
No Impact. The closest airport to the Project is the Ontario Airport located approximately 1.6 miles to the southeast of the Project. According to The Ontario Plan, the north part of the Project is mostly within the 60- 65 dBA and 65-70 dBA noise contours of Ontario Airport (The Ontario Plan, 2022). As indicated in Sec0on 13, Discussion of Effects a through, the Project will not substan0ally increase noise levels. Therefore, due to both the nature of the proposed Project, exis0ng land uses and baseline condi0ons from airport noise, the proposed Project would not expose people residing or working in the area to excessive noise levels.
As a result, significant impacts are not an0cipated; therefore, no Mi0ga0on Measures are required.
MITIGATION:
None required.
682
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Figure 9A. Noise Measurement Locations
(Northern Portion)
*# *#
*#
*#
*#
!(>
>
>
>
>
>
>
W Flora Street
W F Street
E Holt Blvd
N
Vine
A
v
enue
S San Antonio
A
v
enue
Euclid
A
v
enue Euclid
A
v
enue
E F Street
W C Street
W D Street
N
Vine
A
v
e
E C Street
E Holt Blvd
E 4th Street
W 4th Street
Le
m
on A
v
enue
Existing 30-inch IEUA
Recycled Water Main
N San Antonio
A
v
enue
James R. Bryant
Park
E B Street W B Street
S Sultana A
v
enue
N Sultana A
v
enue
West E Street
W 1st Street E 1st Street
Civic Center &
Town Square Park
East E Street
Chaffey High
School
E D Street
Railroad
Railroad
482
408
403
402
379
365
338
337
212
E Granada Court
E H Street
E El Morado Court
E G Street
W Granada Court
W H Street
W G Street
Alley Alley
NM 11
NM 9
NM 8
NM 7
NM 6
NM 5
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community 0 0.05 0.1 0.2 0.3 0.4
Miles ¯
Proposed Recycled Water Pipeline
Segment 1
Segment 2
Segment 4
Segment 5
Conversion of Existing Potable Water Pipeline to RW
Segment 3
!( IEU Connection Point
*# Recycled Water Lateral
Proposed Tree Removal
> Noise Measurement Location
Source: Noise Technical Memorandum
Appendix E (Ganddini, 2024)
683
Ontario Municipal Utilities Company
Euclid Avenue Recycled Water System Project
Figure 9B. Noise Measurement Locations
(Southern Portion)
Segment 6: Proposed Recycled Water Pipeline
Connection Point to Existing City RW Pipeline
Existing City 24-inch Recycled Water Pipeline
Segment 6: Conversion of Existing
Irrigation System to RW
Cucamonga Channel
#* Recycled Water Lateral
*# *# *# !( > > > >
E Riverside Drive
E Riverside Drive
Cucam
onga Chan
Cucam
onga Channel
Euclid
A
v
enue Euclid
A
v
enue
Whispering Lakes
Golf Course
Levi H. Dickey
Elementary School
Existing City 24-inch Recycled
Water Main
Cam
pus A
v
enue
B
on Vie
w
A
v
enue
Gro
v
e
Av
enue
Vine
yard
A
v
enue
Baker Av
enue
B
on Vie
w
A
v
enue
Cam
pus A
v
enue
Gro
v
e
Av
enue
Baker Av
enue
Vine
yard
A
v
enue
SR-60 SR-60
Centennial Park Riverside Parkway
E Walnut Street
>
NM NM 1 NM 2 NM 4 3
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community Legend
SR-60
0 0.125 0.25 0.5 0.75 1
Mile ¯
> Noise Measurement Location
Source: Noise Technical Memorandum
Appendix E (Ganddini, 2024)
684
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 145
14. POPULATION AND HOUSING
14.1 Regulatory Compliance
Southern California Associa6on of Governments
SCAG is the key metropolitan planning organiza0on for the southern California region and focuses on regional planning and policy ini0a0ves for transporta0on, economy, housing, public health, and environment. SCAG’s plans are based on popula0on sta0s0cs and forecasted popula0on growth. SCAG’s objec0ve in developing plans is to encourage dialogue, analysis, and regional planning for a more sustainable southern California.
In accordance with California’s Housing Element Law, Government Code Sec0on 65583, SCAG adopted Connect SoCal in September of 2020. Connect SoCal is also known as the 2020-2045 Regional Transporta0on Plan/ Sustainable Communi0es Strategy (2020-2045 RTP/SCS), a long-range plan iden0fying deficiencies in current housing needs and proposed strategies for balancing key issues including mobility, economy, housing, and jobs, based on popula0on forecasts for the region and general plan sta0s0cs approved by local ci0es and coun0es.
SCAG prepares the Regional Housing Needs Alloca0on (RHNA) every eight years, in support of regional housing produc0on goals and each city is assigned a RHNA housing goal. California Department of Housing and Community Development (HCD) issues RHNA requirements to local agencies City of Ontario Housing Element
Pursuant to the State Housing Element Law, ci0es must update their housing elements every eight years. The City of Ontario adopted the Ontario Housing Element in March 2022. The Housing Element is required to address housing needs within the City of Ontario and iden0fy future produc0on; poten0al limita0ons; and establish programs and goals to meet growing demands (Ontario Housing Element 2022). Due to growth pressures within city limits and the planned buildout of The Ontario Plan, the City incorporated the following policies to promote sustainable development and promote strategic growth opportuni0es:
- LU-1.1: Strategic Growth. We concentrate growth in strategic loca0ons that help create place and iden0ty, maximize available and planned infrastructure, foster the development of transit, and support the expansion of the ac0ve and mul0modal transporta0on networks throughout the City. - LU-1.2: Sustainable Community Strategy. We integrate state, regional, and local Sustainable Community/Smart Growth principles into the development and en0tlement process. - LU-1.3: Adequate Capacity. We require adequate infrastructure and services for all development. - LU-4.3: Infrastructure Timing. We require that the necessary infrastructure and services be in place prior to or concurrently with development.
The Ontario Plan
The Ontario Plan promotes recycled water infrastructure for landscape irriga0on, and the conversion from potable water irriga0on systems, which align with sustainable growth principles and direc0ves from both the State and SCAG. These objec0ves implement sustainable water use which is designated to offset popula0on increases that are forecasted within Ontario.
14.2 Exis6ng Condi6ons
Projec0ons indicate Ontario’s popula0on is an0cipated to increase by 56% between 2016 and 2045 resul0ng in approximately 176,200 residents within city limits (Ontario Housing Element 2022). Within Ontario’s Housing Element, por0ons of Ontario’s Downtown Mixed-used Corridor, within the Local Vicinity surrounding the north part of the Project, were iden0fied as neighborhoods with the highest rehabilita0on needs and abandoned homes (Ontario Housing Element 2022). As a result, Ontario intends to revitalize this area as one strategy to accommodate new housing demands. Regional Housing Needs Goals an0cipate an addi0onal 20,854 housing units within city limits by 2029. Ontario’s Housing Element and The Ontario Plan includes objec0ves to expand use of recycled water irriga0on systems for landscaping across Ontario to enhance sustainability and increase availability of potable water to meet exis0ng and planned future housing and popula0on needs. 685
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 146
14.3 Project Impacts
a) Induce substanal unplanned populaon growth in an area, either directly (for example, by proposing new homes and businesses) or indirectly (for example, through extension of roads or other infrastructure)? DISCUSSION OF EFFECTS:
No Impact. The Project is part of Ontario’s approve recycled water system that is planned to serve the future buildout of Ontario. Proposed expansion of recycled water infrastructure and conversion of exis0ng landscape irriga0on systems from potable water to recycled water will achieve conserva0on of potable water. The Project does not propose new homes or businesses that will directly increase popula0on and housing. The Project would implement potable water conserva0on to serve exis0ng developed parks and public open space. The Project will support perpetual maintenance of the Euclid Avenue Historic Property. The Project will allow sustainable irriga0on at James R. Bryant Park, Euclid Avenue median, Civic Center Buildings, and Town Center Park. The Project is consistent with planned, approved improvements proposed within Ontario’s Recycled Water Master Plan and GP EIR.
The Project will not result in unplanned popula0on growth by extending infrastructure or proposing new homes.
The Project is proposed in response to growth that has been previously considered and approved under The Ontario Plan. Therefore, impacts are not an0cipated, and no mi0ga0on measures are needed.
MITIGATION:
None required.
b) Displace substanal numbers of exisng people or housing, necessitang the construcon of replacement housing elsewhere.
DISCUSSION OF EFFECTS:
No Impact. The Project will be located en0rely within Ontario’s public ROW and would not displace substan0al numbers of exis0ng people or housing developments or require replacement housing. As men0oned in Sec0on
14.3, Discussion of Effects a), the Project would expand Ontario’s recycled water infrastructure in accordance with The Ontario Plan and Ontario’s cer0fied GP EIR; it is intended to minimize potable water use and accommodate approved planned growth within Ontario’s city limits. For these reasons, no impacts related to the displacement of substan0al numbers of exis0ng people or housing, necessita0ng the construc0on of replacement housing will occur. Mi0ga0on measures are not needed.
MITIGATION:
None required.
686
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 147
15. PUBLIC SERVICES
15.1 Regulatory Compliance
The Ontario Plan
The Project will implement sustainability goals outlined in the Environmental Resources Element of The Ontario Plan for landscape irriga0on with recycled water. The Environmental Resources Element incorporates goals and objec0ves for planned implementa0on of sustainability hallmarks for water, waste, energy, air quality, and natural resources management within city limits.
Ontario Municipal Code
Ontario provides plan check review on improvements to verify the level of public service requirements and consistency with Ontario’s standards for service delivery. Plan check also incorporates input from service purveyors so that all service needs are met for new construc0on. Ontario requires developers to either make improvements to fill gaps in exis0ng services or pay impact fees upon the issuance of permits, to fund services including parks, schools, police, fire, roadways, storm drainage, water, and sewer infrastructure.
15.2 Exis6ng Condi6ons
Fire Protec.on
The Project is within the bounds of the City of Ontario Fire Department (OFD) service area. Ontario’s Fire Department provides fire protec0on, emergency medical, hazardous materials, and other services to residents and businesses within its area of service. There are ten (10) fire sta0ons throughout Ontario, which contain 227 personnel (186 firefighters; 41 professional staff members). According to The Ontario Plan, the ten fire sta0ons servicing the Project Area, contain nine (9) four- person paramedic engine companies, three (3) four- person truck companies, an 8-person aircraF rescue and firefigh0ng (ARFF) sta0on, one (1) fire inves0ga0on supervisor, and two ba@alion chiefs (The Ontario Plan, 2022). At each Sta0on, the Ontario Fire Department mandates 4- person engine companies, which include two paramedics, and 4-person truck companies at all 0mes (OFD 2022).
The closest Sta0ons to the Project are the Ontario Fire Department (425 E B Street, Ontario, CA 91764), approximately 100 feet east from the proposed lateral along E. B Street servicing the City Hall and adjacent buildings; Sta0on 4 (N Mountain Ave, Ontario, CA 91762), located approximately 1.2 miles west from 4th Street and Euclid Avenue intersec0on; and Sta0on 9 (2661 E Grand Park Street, Ontario, CA 91762), located approximately 2.6 miles south of E. Riverside Drive and the Cucamonga Creek. Ontario strives to maintain a travel 0me of 4 minute or less at least 90 percent of the 0me with full responses at low/medium hazard fires within 8 minutes of a 911 call at least 90 percent of the 0me and within 10 minutes for high hazard (The Ontario Plan, 2022).
Police Protec.on
The City of Ontario Police Department (OPD) will provide police protec0on to the Project during construc0on.
The OPD responds to an average of 200,000 calls for service per year; therefore, the OPD has allo@ed 300 police officers to meet demands within city limits. The service area is divided into the West Area Command, East Area Command, and South Area Command; the Project is within both the West Area Command and the South Area Command. The main OPD is located at 2500 South Archibald Avenue, approximately 1.5 miles north of the south part of the Project along E. Riverside Drive. To meet and accommodate future demands, the OPD par0cipates in a mutual aid agreement with the San Bernadino County Sheriff to ensure response 0mes are kept to a minimum (The Ontario Plan, 2022).
687
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 148
Schools
The Project is within the Chaffey Join Union High School District (CJUHSD), Ontario-Montclair School District, and Chino Valley Unified School District. During the 2020-21 school year, the local school districts had the following enrollment: 23,854 students for CJUHSD; 19,286 for Ontario-Montclair School District; and 27,333 students for Chino Valley Unified School District (The Ontario Plan, 2022). The closest schools to the Project are Chaffey High School, approximately 0.2 miles north of the 4th Street and Euclid Avenue intersec0on; Vina Danks Middle School, approximately 0.3 miles from the 4th Street and Euclid Avenue intersec0on; St. George Catholic Church School, approximately 0.2 miles west from Euclid Avenue and E. D Street intersec0on; and Levi H. Dickey Elementary School, approximately 0.2 miles from S. Parco Avenue and E. Riverside Drive intersec0on. According to The Ontario Plan, many school districts within Ontario can accommodate future buildout of the approved Land Use Map and proposed popula0on increases.
Parks
Parks close to the Project include James R. Bryant, a neighborhood park9 located at the site of the proposed lateral near the southeast corner of N. San Antonio Avenue and W. Flora Street; Ontario Town Square, a minipark10, located approximately 50 feet east of E. C Street and Lemon Avenue; and Whispering Lakes Golf Course, a special use park11, located approximately 100 feet from E. Riverside Drive & S. Whispering Lakes Lane.
Other Public Facili.es
Ontario is part of the Inland Library System, containing 19 independent libraries, two (2) of which are located within city limits. The closest library to the proposed Project is part of the Inland Library System, located along E. C Street, directly adjacent to the Ovi@ Family Community Library at 215 E. C Street.
15.3 Project Impacts
a) Result in substan/al adverse physical impacts associated with the provision of new or physically altered governmental facili/es, need for new or physically altered governmental facili/es, the construc/on of which could cause significant environmental impacts, in order to maintain acceptable service ra/os, response /mes, or other performance objec/ves for any of the public services:
i. Fire Protec/on?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. During construc0on the Project would require temporary par0al lane closures. An approved traffic control plan will be implemented during construc0on to facilitate acceptable through access. This will allow services to func0on according to City standards during construc0on and would avoid significant impacts to the func0on to the Fire Department during construc0on. The closest Fire Sta0on is located at 425 E B Street, Ontario, CA 91764, approximately 100 feet from the proposed recycled water lateral along E. B Street. Ontario shall implement mi0ga0on measure MM PUB-01: Coordina.on with Local 9 According to the City of Ontario, “Community Parks are usually 5 to 30 acres and contain larger park facili6es such as mul6purpose fields, pools, and sports courts. Community parks serve the daily recrea6onal needs of their local neighborhood as well as the broader community.
This means they serve residents within a 15-minute walk and within a 5- minute drive. Most community parks in Ontario also have community centers that provide a wide range of programs and services and accommodate special events, recrea6on programs, offices, and community services” (The Ontario Plan, 2022).
10 According to the City of Ontario, “Miniparks and Neighborhood Parks are generally less than 5 acres and serve residents within a 15- minute walk. Although they tend to focus more on passive recrea6on, they play an important role in providing outdoor access for neighborhoods. Open grassy areas, picnic tables, walkways, and playgrounds are typical park ameni6es” (The Ontariol Plan, 2022). 11 According to the City of Ontario, “Special Use Parks are park areas that provide unique recrea6on opportuni6es. They oQen serve the recrea6on needs of specific groups of people but are always publicly available” (The Ontario Plan, 2022). 688
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 149
Agencies and Neighborhoods so that local agencies review and have input on the traffic control plan prior to approval to reduce construc0on impacts on fire protec0on services throughout construc0on.
The Project does not propose to increase popula0on or density beyond what has been considered and approved in The Ontario Plan. Therefore, Project implementa0on would not require an addi0onal fire sta0on or fire services. Likewise, the Project does not permanently modify land use requiring fire services beyond what has already been iden0fied in The Ontario Plan. The standard applica0on of Ontario’s plan check, inspec0on, and design criteria will confirm the appropriate implementa0on of fire protec0on performance objec0ves for the Project during construc0on and will facilitate con0nuous fire protec0on within the Local Vicinity.
For these reasons, impacts are considered less than significant with mi0ga0on incorporated.
MITIGATION:
MM PUB-01: Coordina.on with Local Agencies for Traffic Control. Prior to finalizing the traffic control plan, Ontario’s City Engineering Division must ensure coordina0on occurs between Local Agencies within Ontario City Limits including Ontario Fire Department, Ontario Parks and Recrea0on Department, San Bernadino Sherrif’s Department, City Hall, and Ontario Police Department, Chaffey Join Union High School District (CJUHSD), Ontario-Montclair School District, Chino Valley Unified School District, and Inland Library System. Coordina0on between Local Agencies shall include advance planning on the construc0on schedule so that ac0ve construc0on does not coincide with classes and special events. Coordina0on shall also involve distribu0on of Project informa0on including but not limited to temporary street signs with the dates of proposed construc0on, mailers and door tags with a descrip0on of ac0vi0es and 0meframes for each neighborhood. ii. Police Protec/on?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. See Sec0on 15.3, Discussion of Effects a) i. The Project is a part of the Recycled Water Master Plan and is intended to benefit Ontario. The contractor is responsible for con0nuous implementa0on of safety measures during construc0on; this includes implementa0on of an approved traffic control plan that will facilitate con0nuous access during construc0on. The Ontario Municipal Code requires implementa0on of safety measures by the contractor during construc0on so that risk from use of heavy equipment, materials, and construc0on/crew ac0vity is reduced. The MMRP for the Project also includes mi0ga0on measures to reduce risk due to hazards and hazardous materials. Therefore, the Project will not significantly impact service needs and the level of police protec0on. The Project is intended to achieve sustainability goals and objec0ves in The Ontario Plan and does not propose to increase popula0on or change land use beyond what has already been considered and approved in the GP EIR.
During construc0on an approved traffic control plan will be followed pursuant to mi0ga0on measure MM TRAF01: Traffic Control Plan and no0fica0on of the Project will be circulated pursuant to mi0ga0on measure MM PUB-01: Coordina.on with Local Agencies and Neighborhoods. The traffic control plan and coordina0on will allow services to func0on according to Ontario’s service standards, and access will remain open to the Police Department throughout the areas of disturbance and along the Project. Compliance between the City Police Department traffic control guidelines and the traffic control plan for the Project will result in less than significant impacts. The proposed Project will not increase popula0on or change land use within the Project Area.
As a result, less than significant long-term impacts to police protec0on are expected with the implementa0on of Mi0ga0on Measure MM TRAF-01: Traffic Control Plan and MM PUB-01: Coordina.on with Local Agencies and Neighborhoods.
MITIGATION:
MM PUB-01: Coordina.on with Local Agencies for Traffic Control.
MM TRAF-01: Traffic Control Plan.
MM HAZ-01: Coordina.on with Local Schools/School Districts.
MM HAZ-02: Hazards and Hazardous Materials Manifest and Plan. 689
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 150
iii. Schools?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. As men0oned with Sec0on 15.2 Exis0ng Condi0ons, the Project is closest to Chaffey High School, Vina Danks Middle School, St. George Catholic Church School, and Levi H. Dickey Elementary School. The Project will not increase popula0on or result in changes to exis0ng and planned enrollment. The Project is consistent with the goals and policies of The Ontario Plan and will promote sustainable landscape irriga0on of exis0ng parks and open space; it will not result in impacts beyond what was previously considered in the GP EIR. During construc0on, the Project could result in temporary, short-term localized impacts from traffic, emissions, and noise near the closest educa0onal facili0es. Mi0ga0on measures and BMPs presented in the MMRP for the Project will result in less than significant impacts. A traffic control plan will be approved by Ontario and implemented by the contractor during construc0on pursuant to MM TRAF-01: Traffic Control Plan, so that adequate access to schools is available. It is recommended that Project construc0on near schools be planned to occur before and aFer drop-off and pickup. The contractor shall coordinate with local school districts and neighborhoods by preparing and distribu0ng a construc0on schedule and signs pos0ng construc0on dates; the schedule should be planned so that construc0on near schools does not coincide with classes and special events. Coordina0on shall include street signs, mailers, and door tags pursuant to MM PUB01: Coordina.on with Local Agencies and Neighborhoods.
As a result, less than significant impacts are an0cipated with the implementa0on of Mi0ga0on Measure MM PUB-01: Coordina.on with Local Agencies and Neighborhoods.
MITIGATION:
MM PUB-01: Coordina.on with Local Agencies for Traffic Control. iv. Parks?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. See Sec0on 15, Discussion of Effects a) i through iii. The Project does not propose to change land use or increase popula0on; therefore, increased demand for parks would not result from Project implementa0on. A lateral is proposed to extend south from W. Flora Street toward James R. Bryant Park resul0ng in temporary, localized impacts related to park access and use at the north end of the park. These impacts may include localized air emissions, noise, construc0on barrier, and traffic, which are an0cipated to be temporary and less than significant with the implementa0on of mi0ga0on measures in the MMRP for the Project. The park will return to pre-Project condi0ons once construc0on has been completed.
The Project is consistent with long-term plans for sustainable water use and approved land use plans for buildout of Ontario. The Project is a planned improvement and has been considered and approved within The Ontario Plan.
Project construc0on will be within City ROW; therefore, an approved traffic control plan will be implemented in compliance with City Standard Specifica0ons. Mi0ga0on measure MM PUB-01: Coordina.on with Local Agencies will be implemented to reduce short-term, temporary impacts during construc0on. Mi0ga0on measures for traffic control, noise and air emissions are also proposed to reduce construc0on impacts. As a result, Project impacts are less than significant with mi0ga0on to exis0ng park land adjacent to the Project. Over the long-term, the Project will facilitate sustainable permanent irriga0on of parks and open space within Ontario.
Less than significant impacts with mi0ga0on are an0cipated.
MITIGATION:
MM PUB-01: Coordina.on with Local Agencies for Traffic Control. 690
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 151
v. Other public facili/es?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. As men0oned above, the Ovi@ Family Community Library at 215 E C Street, is directly next to the proposed alignment along E. C Street. Access to the library facili0es may be impacted temporarily during construc0on at this loca0on; therefore, the Project will implement the following mi0ga0on measures to reduce impacts related to library access: MM TRAF-01: Traffic Control Plan and MM PUB-01: Coordina.on with Local Agencies and Neighborhoods; mi0ga0on measures will provide con0nuous access to the library and will reduce poten0ally significant impacts to a less than significant levels.
MITIGATION:
MM PUB-01: Coordina.on with Local Agencies for Traffic Control and MM TRAF-01: Traffic Control Plan. 691
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 152
16. RECREATION
16.1 Regulatory Compliance
The Quimby Act
The Quimby Act of 1965, Sec0on 66477 of the California Government Code, enables local governments, ci0es, or coun0es to require the dedica0on of land or impose a requirement of the payment of the in-lieu fees for development of community parks as well as seVng minimal standards for parks.
City of Ontario Recrea6on and Parks Master Plan
The Ontario Recrea0on and Parks Master Plan was adopted in August 2021 for planning infrastructure and program improvements so that Ontario has a premier parks system. The Master Plan also priori0zed and recommended the following:
- Find opportuni0es to include small plazas and passive recrea0onal elements at city facili0es or park spaces such as the Euclid Avenue center median;
- Find areas where linear parks may occur such as the Euclid Avenue center median; - Look to enhancing arterial and collector street such as Euclid Avenue, Riverside Drive, Mission Boulevard, Mountain Avenue, and Francis Street;
- Iden0fy two opportunity park areas for James R. Bryant Park to help address level of service gaps such as playground expansion or addi0onal picnic areas.
16.2 Exis6ng Condi6ons
Ontario contains approximately 481 acres of parkland, which consists of “7 miniparks, 15 neighborhood parks, 6 community parks, 4 linear and special use parks, and 1 regional park” (Ontario GP EIR, 2022). The closest parks to the Project are as follows and will be served by new laterals that will be constructed with the Project: James R. Bryant, a neighborhood park located south of W. Flora Street; Ontario Town Square, a minipark, located approximately 50 feet east of E. C Street and N. Lemon Avenue; and Whispering Lakes Golf Course, a special use park, located approximately 100 feet from Riverside Drive & S. Whispering Lakes Lane. The Project will also provide laterals on the east side of the Euclid Avenue median, north of E. Holt Boulevard for irriga0on of passive public open space within the median between 4th street and E. Holt Boulevard.
16.3 Project Impacts
a) Would the Project increase the use of exisng neighborhood and regional parks or other recreaonal facilies such that substanal physical deterioraon of the facility would occur or be accelerated? DISCUSSION OF EFFECTS:
Less than Significant Impact. Project implementa0on does not propose changes in land use that will create permanently increased employment, housing, or local popula0on. Therefore, the Project will not result in substan0ve increased use of exis0ng neighborhood and regional parks. The Project will temporarily increase day0me, weekday popula0on within the APE during periods of ac0ve construc0on; however, significantly increased park uses, resul0ng in substan0al or accelerated physical deteriora0on of nearby parks, is not expected during construc0on due to the size of the Project and an0cipated size of the construc0on crew.
As a result, the Project will have less than significant impact on recrea0onal facili0es. No Mi0ga0on Measures are required.
MITIGATION:
None required.
692
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 153
b) Does the Project include recreaonal facilies or require the construcon or expansion of recreaonal facilies which might have an adverse physical effect on the environment? DISCUSSION OF EFFECTS:
No Impact. See Sec0on 16, Discussion of Effects a). The Project will expand Ontario’s recycled water system and will not permanently change demand for recrea0onal facili0es or result in increased use or expansion of exis0ng recrea0onal facili0es. The Project will facilitate sustainable long-term maintenance of parks and open space in Ontario; it will extend laterals from the new recycled water mains to the exis0ng irriga0on within exis0ng parks and open space: James R. Bryant Park, Euclid Avenue median, and Ontario Town Square Park. During construc0on the contractor will be required to implement mi0ga0on measures and BMPs from the approved MMRP for the Project to reduce physical effects of construc0on within the exis0ng parks and open space to less than significance. Upon comple0on, the Project will restore areas affected by construc0on to pre-Project condi0ons. Therefore, the Project will have no significant temporary or permanent impacts related to construc0on or expansion of recrea0onal facili0es and no addi0onal mi0ga0on is required.
MITIGATION:
None required.
693
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 154
17. TRANSPORTATION
17.1 Regulatory Compliance
CEQA Guidelines
In December 2018, CEQA Guidelines Sec0on 15064.3, subdivision (b) was adopted by the California Natural Resources Agency. The updated guidelines require evalua0on of a project’s transporta0on impacts using “vehicle miles traveled” (VMT) for describing levels of significant impacts. The updated guidelines focus on shiFing the focus of CEQA impact analysis from roadway conges0on and driver delay to GHG reduc0ons and reduced VMT with mul0modal networks and mixed land uses.
City of Ontario Traffic Management Center
In partnership with the San Bernadino County Transporta0on Authority (SBCTA), Ontario constructed a traffic management center (TMC) to accelerate the implementa0on of traffic signal coordina0on, ramp metering, and technology enhancement projects, to reduce emissions.
The key func0ons of the TMC are the following:
- Implement a dynamic selec0on of traffic signal 0mings; - Implement transit signal priority;
- Provide coordina0on among various agencies;
- Monitor traffic signal equipment, and dispatch resources to fix malfunc0oning equipment; - Provide traffic detec0on and surveillance;
- Modify arterial traffic signal 0ming when an incident occurs on a freeway; - Manage incidents and special events or emergency evacua0ons; and - Store data for long term archives and offline analysis.
VMT Thresholds
Ontario has established VMT Thresholds of significance in their “City of Ontario Resolu0on Adop0ng Vehicle Miles Travelled Thresholds”, (June 2020). The thresholds established by Ontario include the following:
- Criterion 1: Origin Des/na/on (OD) Method VMT/SP. Any increase in the citywide average VMT per service popula0on (VMT/SP) of TOP 2050 (Proposed Project) compared to the current TOP (Approved Project) would be considered a significant impact.
- Criterion 2: Boundary Method Total VMT. Any increase in the total citywide daily VMT of the TOP 2050 (Proposed Project) calculated using the Boundary Method compared to the current TOP (Approved Project) would be considered a significant impact.
17.2 Exis6ng Condi6ons
The Project will occur within City ROW for parks, open space, and improved streets with the following road designa0ons and exis0ng condi0ons:
Euclid Avenue is a north/south City arterial, historic district, and mixed-use corridor. Within the Euclid Avenue ROW, there are bike lanes and sharrows in both north and southbound direc0ons. Euclid Avenue is pedestrian friendly and provides sidewalks on both sides or the street, crosswalks, and pedestrian walkways. According to The Ontario Plan, Euclid Avenue also serves a designated evacua0on and truck route. Euclid Avenue is also a Bus Rapid Transit (BRT) Corridor, which is a corridor intended to reduce VMT. The BRT along Euclid Avenue is an essen0al public transit route within Ontario. See Sec.on 17. Transporta.on, regarding Ontario’s mobility (Ontario 2020).
694
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 155
4 th Street is a 2-lane collector street running east-west, approximately 35-feet-wide, traversing through Ontario’s historic district. This ROW includes a Class III12 Bicycle Boulevard and serves mul0ple transporta0on func0ons including a pedestrian walkway and street parking on either side of Right-of-Way; 4th Street is a designated Evacua0on Route according to The Ontario Plan.
W. F Street, N. Vine Avenue, and W. Flora Street are city collector streets, 35-feet wide within primarily residen0al areas of Ontario’s downtown district. These roadways contain pedestrian walkways along either side of the paved travel lanes. These local roadways do not have designated bikeways; bicycle access is shared with vehicular access pursuant to Ontario’s Complete Streets Model in City Policy M-1.4: Complete Streets.
E. C Street is a minor arterial, with no designated bikeways. Diagonal street parking is located along the east bound lane; and pedestrian walkways are on either side of the ROW.
E. B Street, E. E Street, and W. Lemon Street are minor arterials with pedestrian walkways along either side of the ROW and shared vehicular and bicycle access.
E. Riverside Drive is an east west 6-lane minor arterial within Ontario’s Old Model Colony containing a Class II13 Bicycle Lane, and pedestrian walkways along the westbound lane. The Ontario Plan, Figure 5.17-5: Evacua.on Routes, indicates that Riverside Drive is a designated evacua0on route.
17.3 Project Impacts
a) Conflict with a program, plan, ordinance or policy addressing the circulaon system, including transit, roadway, bicycle and pedestrian facilies?
DISCUSSION OF EFFECTS:
Less than Significant Impact. The Project will be constructed within Ontario’s ROW under an approved traffic control plan. The Project is proposed in an urbanized area with an exis0ng street grid that provides mul0ple alterna0ve access routes. The Project will contribute minimal vehicle trips per day during construc0on. There will be no permanent changes in VMT from the Project. Access for construc0on will occur from exis0ng regional and local roadways, which are connected to improved ROW grid within Ontario. Construc0on of the Project is subject to the standard applica0on of Ontario’s plan check and inspec0on process, to verify compliance with City programs, plans, ordinances, and policies for the circula0on system, including transit, roadway, bicycle, and pedestrian facili0es. The Project will support long-term sustainable maintenance of Euclid Avenue.
For the reasons above, less than significant impacts are an0cipated; no Mi0ga0on Measures are needed.
MITIGATION:
None required.
b) Conflict or be inconsistent with CEQA Guidelines § 15064.3, subdivision (b)?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. CEQA Guidelines Sec0on 15064.3, subdivision (b) pertains to Project-generated VMT, efficient opera0on of transit, and accessible mul0-modal travel. The Project does not 12 According to the City of Ontario, a Class III bicycle boulevard is located “on a local or collector street that is one travel lane in each direc6on, has a design speed of 25 mph or less and a design volume of 5,000 ADT or less” (The Ontario Plan, 2022). 13 According to the City of Ontario, Class II bicycle lanes are the preferred path of travel and consist of “dedicated land along streets, with no parking allowed in the bike lane” (The Ontario Plan, 2022).
695
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 156
propose changes to exis0ng or approved land use and will not facilitate permanently increased traffic, increased VMT, or any permanent changes in exis0ng ROW condi0ons.
The Project will implement mi0ga0on measures MM TRAF-01: Traffic Control Plan and MM TRAF-02:
Encroachment Permit, to maintain efficient travel within the ROW during construc0on. Implementa0on of mi0ga0on measures for the Project will reduce temporary Project impacts to less than significant levels.
MITIGATION:
MM TRAF-01: Traffic Control Plan (TCP).
MM TRAF-02: Encroachment Permit
c) Substanally increase hazards due to a geometric design feature (e.g., sharp curves or dangerous intersecons) or incompable uses (e.g., farm equipment)?
DISCUSSION OF EFFECTS:
No Impact. The Project will be constructed below ground surface and will not implement above ground features that could result in either permanent or temporary hazards from a geometric design feature. Work within public ROW requires review and approval of an encroachment permit by Ontario, which will include a traffic control plan with BMPS such as temporary barriers and detours. Therefore, no impacts are anticipated.
MITIGATION:
None required.
d) Result in inadequate emergency access?
DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. Project construc0on involves the use of larger, slower moving vehicles and equipment that could result in traffic delay within the Local Vicinity during periods of ac0ve construc0on. Implementa0on of Mi0ga0on Measure MM TRAF-01: Traffic Control Plan will require con0nuous access according to City standards within the APE during construc0on As a result, the Project an0cipates less than significant impacts due to the implementa0on of Mi0ga0on Measure MM TRAF-01: Traffic Control Plan.
MITIGATION:
MM TRAF-01: Traffic Control Plan.
696
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 157
18. TRIBAL CULTURAL RESOURCES
18.1 Regulatory Compliance
AB 52
The Legislature added requirements regarding tribal cultural resources for CEQA in Assembly Bill 52 (AB 52) that took effect July 1, 2015. AB 52 requires consulta0on with California Na0ve American tribes and considera0on of tribal cultural resources in the CEQA process. By including tribal cultural resources early in the CEQA process, the legislature intended to ensure that local and Tribal governments, public agencies, and project proponents would have informa0on available, early in the project planning process, to iden0fy and address poten0al adverse impacts to tribal cultural resources. By taking this proac0ve approach, the legislature also intended to reduce the poten0al for delay and conflicts in the environmental review process. To help determine whether a project may have such an effect, the PRC requires a Lead Agency to consult with any California Na0ve American tribe that requests consulta0on and is tradi0onally and culturally affiliated with the geographic area of a Project.
PRC Sec0on 21074 defines “Tribal cultural resources as any of the following “Sites, features, places, cultural landscapes, sacred places, and objects with cultural value to a California Na0ve American tribe that are either:
(A) Included or determined to be eligible for inclusion in the California Register of Historical Resources and/or (B) Included in a local register of historical resources as defined in subdivision (k) of Sec0on 5020.1. This may include a resource determined by the Lead Agency, in its discre0on and supported by substan0al evidence, to be significant pursuant to criteria set forth in subdivision (c) of Public Resources Code Sec0on 5024.1. In applying the criteria set forth in subdivision (c) of Sec0on 5024.1 for the purposes of this paragraph, the Lead Agency shall consider the significance of the resource to a California Na0ve American tribe.” During AB52 consulta0on for SCH# 2016081019, formal Tribal Consulta0on was conducted, and no specific concerns were iden0fied. The Gabrieleno Band of Mission Indians/Kizh Na0on requested to monitor specific ground disturbing ac0vi0es and previous mi0ga0on measure V-02 was added for this reason. This mi0ga0on measure has been incorporated into the MMRP for the Project.
MM TCR-03: Gabrieleno Band of Mission Indians- Kizh Na.on- Prior to issuance of a grading permit and ground disturbance, the Project applicant shall contact the Gabrieleno Band of Mission Indians-Kizh Na0on and provide the tribe with wri@en no0fica0on of the Project's ground disturbing ac0vi0es and provide the tribe an opportunity to have a tribal monitor on-site during these ac0vi0es, if required. A copy of the wri@en no0fica0on shall be provided to the Ontario Municipal U0li0es Department (OMUC) prior to the issuance of the first grading permit and ground disturbance.
18.2 Exis6ng Condi6ons
Within the APE for the Project, Euclid Avenue was constructed between 1882 and 1884 under supervision of George and William Chaffey. The segment of Euclid Avenue ROW between G Street and I-10 is a contributor to the Designated Euclid Avenue Ontario Local Historic District, and the segment of Euclid Avenue ROW between G Street and the railroad overpass is a contributor to the proposed Downtown Ontario Local Historic District.
Due to its lis0ng on the Na0onal Register and its status as a district contributor on the local level, Euclid Avenue ROW qualifies as a historical resource under CEQA. Based on observa0ons made during the field visit and substan0al background research, BCR Consul0ng has verified that Euclid Avenue remains intact within the APE for the Project; furthermore, these cultural resources iden0fied during the records search indicate sensi0vity for buried cultural resources within the APE and Local Vicinity.
Ontario ini0ated formal AB 52 Na0ve American Consulta0on on November 5, 2024, and received a le@er on November 14, 2024, from the Yuhaaviatam of San Manuel Na0on (formerly the San Manuel Band of Mission Indians) reques0ng mi0ga0on measures. The Project is within Serrano ancestral territory and is of interest to 697
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 158
the Tribe. The Tribe’s le@er states that they do not have any concerns with the Project as currently planned at this 0me, based on the nature, loca0on, and the Cultural Resources Management Department’s present state of knowledge on the APE for the Project. The Tribe has requested that mi0ga0on measures be included for CEQA compliance which require that work immediately surrounding any found buried resources be temporarily halted within a 60-foot radius so Ontario’s archaeologist can evaluate the resources and the Tribe can be no0fied for input regarding the significance, appropriate next steps, monitoring, and treatment of cultural and Tribal resources. Therefore, mi0ga0on measures CUL-01: Archaeological and Historical Monitoring, CUL-03: Worker Environmental Awareness Training, and CUL-04: Human Remains and Funerary Objects have been modified to incorporate mi0ga0on for establishment of a temporary no-work buffer and assessment/input from the tribe if buried resources are found; these mi0ga0on measures also require a monitoring and treatment plan for precontact cultural resources and 100-foot radius buffer for assessment of human remains and funerary objects by the coroner and Most Likely Descendent pursuant to State Health and Safety Code §7050.5.
In addi0on, the Tribe requested the following mi0ga0on measure be added to the MMRP for the Project for compliance with AB52:
“1. The Yuhaaviatam of San Manuel Na0on Cultural Resources Management Department (YSMN) shall be contacted, as detailed in CUL-1, of any pre-contact cultural resources discovered during project implementa0on, and be provided informa0on regarding the nature of the find, so as to provide Tribal input with regards to significance and treatment. Should the find be deemed significant, as defined by CEQA (as amended, 2015), a Cultural Resources Monitoring and Treatment Plan shall be created by the archaeologist, in coordina0on with YSMN, and all subsequent finds shall be subject to this Plan.
This Plan shall allow for a monitor to be present that represents YSMN for the remainder of the project, should YSMN elect to place a monitor on-site. “
“2. Any and all archaeological/cultural documents created as a part of the project (isolate records, site records, survey reports, tes0ng reports, etc.) shall be supplied to the Lead Agency for dissemina0on to YSMN. The Lead Agency and/or applicant shall, in good faith, consult with YSMN throughout the life of the project.”
18.3 Project Impacts
a) Would the Project cause a substanal adverse change in the significance of a tribal cultural resource, defined in Public Resources Code § 21074 as either a site, feature, place, cultural landscape that is geographically defined in terms of the size and scope of the landscape, sacred place, or object with cultural value to a California Nave American tribe, and that is:
i. Listed or eligible for lisng in the California Register of Historical Resources, or in a local register of historical resources as defined in Public Resources Code secon 5020.1(k), or DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. The Project requires the use of heavy equipment, trucks, earthwork, and tree work within proximity to resources that are listed or eligible for lis0ng in the CRHR and local register of historical resources. Proposed work includes trenching, pipeline construc0on, connec0ons with exi0ng irriga0on systems, and tree maintenance including removal/replacements. Therefore, Project construc0on could result in poten0ally significant direct and indirect impacts to buried resources defined in Public Resources Code § 21074. The cultural records search for the Project indicated that the APE and Local Vicinity, where the Project is located, has been occupied since the late 1800’s; there are 23 previous cultural resource studies conducted in this area, and 29 cultural resources have been iden0fied within a half-mile resource radius of the Project. Based on the nature, loca0on, and exis0ng data on cultural resources in the APE for the Project, Tribal consulta0on for the Project for AB52 compliance has resulted in incorpora0on of Tribal mi0ga0on measures in the MMRP for CEQA compliance. Mi0ga0on measures for the Project require that the Tribe be no0fied if buried resources are encountered during construc0on and for Tribal input regarding the 698
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 159
significance, appropriate next steps, monitoring, and treatment of cultural and Tribal resources found during construc0on. All archaeological/cultural documents generated during the life of the project shall be made available to the Tribe. See mi0ga0on measures TCR-01: Pre-contact Cultural Resources and TCR:02: Records and Documents.
Therefore, based on the formal AB 52 consulta0on with the Yuhaaviatam of San Manuel Na0on, impacts to tribal cultural resources pursuant to Public Resources Code Sec0on 21074 and 5020.1(k) are less than significant with implementa0on of the following mi0ga0on measures: Measure MM CUL-01: Archeological Monitoring, MM CUL-02: Vibra.on Monitoring, MM CUL-03: Worker Environmental Awareness Training, CUL-06: Cultural Resource Discoveries, TCR-01: Pre-contact Cultural Resources, and TCR-02: Records and Documents. As a result of proposed mi0ga0on, it is not an0cipated that the Project will not have significant impacts on resources that are listed or eligible for lis0ng in the California Register of Historical Resources or in a local register of historical resources. See Sec0on 5. Cultural Resources for more informa0on.
MITIGATION:
MM CUL-01: Archeological Monitoring.
MM CUL-02: Vibra.on Monitoring.
MM CUL-03: Worker Environmental Awareness Training,
MM CUL-06: Cultural Resource Discoveries.
MM TCR-01: Pre-contact Cultural Resources.
MM TCR-02: Records and Documents.
ii. A resource determined by the Lead Agency, in its discreon and supported by substanal evidence, to be significant pursuant to criteria set forth in subdivision (c) of Public Resources Code § 5024.1.
In applying the criteria set forth in subdivision (c) of Public Resource Code § 5024.1, the Lead Agency shall consider the significance of the resource to a California Nave American tribe.
DISCUSSION OF EFFECTS:
Less than Significant Impact with Mi.ga.on Incorporated. See Discussion of Effects a) above. The Project will be implemented within an area where the presence of historical resources pursuant to criteria set forth in subdivision (c) of Public Resources Code § 5024.1 are documented. Mi0ga0on measures have been included in the MMRP for the Project to reduce significant impacts on cultural resources to less than significant levels.
Proposed earthwork and tree removal/replacements that are proposed with the Project may encounter buried resources of significance pursuant to criteria set forth in subdivision (c) of Public Resource Code § 5024.1. The implementa0on of mi0ga0on measures for the Project, which have been requested by the Yuhaaviatam of San Manuel Na0on (formerly the San Manuel Band of Mission Indians) during formal tribal consulta0on with Ontario pursuant to AB52, will reduce impacts to less than significant levels. See Sec0on 5. Cultural Resources for more informa0on.
MITIGATION:
MM CUL-01: Archeological Monitoring.
MM CUL-02: Vibra.on Monitoring.
MM CUL-03: Worker Environmental Awareness Training,
MM CUL-06: Cultural Resource Discoveries,
MM TCR-01: Pre-contact Cultural Resources.
MM TCR-02: Records and Documents.
699
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 160
19. UTILITIES AND SERVICES
19.1 Regulatory Compliance
City of Ontario Recycled Water Master Plan
Planned buildout of Ontario, as outlined in the in the cer0fied GP EIR, indicates the need for development of addi0onal housing as well as suppor0ng commercial, industrial, public facili0es, and infrastructure improvements that promote sustainability to offset impacts from development and increased popula0on within city limits. Improvements that were iden0fied in the Ontario 2020 Recycled Water Master Plan and The Ontario Plan are intended to achieve the following objec0ves:
- Extend the recycled water system in the Ontario Ranch service area; - Extend the recycled water to the Creekside conversion project areas; - Convert large irriga0on meters/users to recycled water; - Convert parks and school landscaping to recycled water; and - Convert current agricultural land to recycled water.
Ontario’s Water Master Plan proposes addi0onal pump sta0ons and a total of 51.9-miles of pipeline of which
12.2 miles of new pipeline would be constructed in the next five years. Proposed recycled water improvements will help Ontario sustainably meet potable water demand from buildout of The Ontario Plan Land Use Map.
Currently, demand in Ontario totals 9,655-acre feet per year. By 2045, demand is an0cipated to double; therefore, through the Recycled Water Master Plan, Ontario plans to convert to recycled water irriga0on where possible to conserve potable water and lower costs (recycled water is approximately 60 percent the price of potable water) (Ontario GP EIR, 2022). Ontario’s Water Master Plan and CIP includes the “Euclid Avenue Recycled Water System” (Original Project) as a planned improvement (see Figure 7. Recycled Water Distribu/on Project Phases and Components).
City of Ontario Municipal Code
Ontario’s Municipal Code contains the following direc0ves pertaining to water supply and conserva0on, which are applicable to the proposed Project:
- Chapter 8A, Water Conserva.on Plan: This sec0on of the code provides the steps to be taken to minimize the poten0al for a water shortage through water conserva0on and the enactment of policies to be implemented during various stages of water shortages.
- Chapter 8C, Recycled Water Use: The purpose of this chapter is to establish procedures, specifica0ons, and limita0ons on the development and opera0on of recycled water facili0es and systems within Ontario’s service area and adopt rules and regula0ons controlling such use. The sec0on includes rates, fees, charges, and deposits for obtaining recycled water service.
Inland Empire U.li.es Agency
The Inland Empire U0li0es Agency (IEUA) maintains a regularly updated Sewer System Management Plan. The Plan accesses exis0ng infrastructure to plan for infrastructure development required for future buildout due to growing demands for treatment, conveyance, and delivery of treated water.
19.2 Exis6ng Condi6ons
Water and Wastewater
Within City Limits, wastewater treatment and water services are provided by IEUA. Notable water and wastewater facili0es are 24-inch recycled water mains owned and operated by Inland Empire U0li0es Agency along 4th Street and traversing north south parallel to the Cucamonga Channel. 700
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 161
Water demands have risen steadily due to the implementa0on of The Ontario Plan and growth experienced within City Limits, the IEUA in conjunc0on with the City of Ontario are working towards expanding the recycled water infrastructure pursuant to Ontario’s Recycled Water Master Plan, The Ontario Plan, and Municipal Code water supply and conversa0on measures.
Storm Drainage System
Ontario maintains storm drains throughout Ontario. Storm drain facili0es within the Euclid Avenue and E.
Riverside Drive Right-of-Way include curb and gu@er, underground pipelines, catch basins and inlets.
Solid Waste Collec.on
Ontario provides its own solid waste collec0on via the Integrated Waste Department of OMUC. Recycling and green waste are taken to the West Valley Materials Facili0es in Fontana; while, waste is taken to either Badlands Sanitary Landfill, located in Moreno Valley approximately 35 miles east, or El Sobrante Landfill, located in Corona approximately 23 miles southeast.
19.3 Project Impacts
a) Require or result in the relocaon or construcon of new or expanded water, wastewater treatment or storm water drainage, electric power, natural gas, or telecommunicaons facilies, the construcon or relocaon of which could cause significant environmental effects? DISCUSSION OF EFFECTS:
Less than Significant Impact. The Project is being designed to avoid direct impacts on exis0ng u0li0es. Prior to start of construc0on, loca0ons of exis0ng u0li0es will be verified in the field, so construc0on will avoid direct impacts to exis0ng u0li0es; therefore, reloca0on of exis0ng u0li0es will not be required for the proposed Project.
The Project will temporarily disconnect fixtures within the APE from Ontario’s potable water system, install recycled water pipeline, new connec0ons and laterals within exis0ng parks and open space and will not require new or expanded water, wastewater treatment, or storm water drainage, electric power, natural gas, or telecommunica0ons facili0es. The Project will reconnect water fountains within the APE to Ontario’s exis0ng potable water system pursuant to mi0ga0on measure MM UTL-02: Reconnec.on of Water Fountains. Upon comple0on of construc0on, Ontario shall verify that all water fountains within the Project footprint are reconnected to Ontario’s potable water system. Significant impacts on water service will not occur.
MITIGATION:
MM UTL-02: Reconnec.on of Water Fountains.
b) Have sufficient water supplies available to serve the Project and reasonably foreseeable future development during normal, dry and mulple dry years?
DISCUSSION OF EFFECTS:
No Impact. The Project will make more water available for urban uses and does not propose improvements that would increase popula0on or density or genera0on addi0onal demand on water supplies; it is proposed for irriga0on of exis0ng parks and open space with recycled water. Plans for the Project indicate Project consistency with the of Ontario’s Recycled Water Master Plan; it will improve Ontario’s recycled water infrastructure to facilitate planned future buildout of The Ontario Plan Land Use Map and Recycled Water Master Plan. The Project will extend Ontario’s recycled water distribu0on pipes to connect to IEUA’s exis0ng recycled water mains along Euclid Avenue at 4th street and in E. Riverside Drive to serve the Downtown District and Euclid Avenue Historic District as well as exis0ng parks and open space north of E. Riverside Drive. 701
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 162
As a result, no impacts are foreseen, as the Project is not an0cipated to substan0ally impact water supplies. The Project will increase the availability of recycled water and will make more potable water available in the foreseeable future development during normal and mul0ple dry years. No Mi0ga0on Measures are needed.
MITIGATION:
None required.
c) Result in a determinaon by the wastewater treatment provider, which serves or may serve the Project that it has adequate capacity to serve the Project’s Projected demand in addion to the provider’s exisng commitments?
DISCUSSION OF EFFECTS:
No Impact. Wastewater flows are treated by IEUA Recycling Plant #1 (RP-1), which as a treatment capacity of 44 MGD, and Recycling Plant #2 (RP-2), which has a treatment capacity of 16.3 MGD These facili0es treat wastewater on a large-scale and also convey water to Los Angeles Sanita0on District for treatment and disposal; if treated to drinking water standards, it is considered suitable for distribu0on and use for landscape irriga0on and industrial users (Ontario GP EIR, 2022). Within the APE for the Project along W. F Street, N. Vine Avenue, W.
Flora Street, E. B Street, E. C Street, and E. Riverside Drive, 12-inch to 24-inch gravity mains are located within the public-Right-of-Way.
The Project will not generate wastewater for treatment at IEUA Recycling Plants #1 and #2. IEUA would not experience increased capacity due to Project ac0vi0es. Therefore, changes to the facili0es exis0ng commitments are not an0cipated from construc0on and long-term opera0on of the Project. No impacts are an0cipated, and Mi0ga0on Measures are not required for the Project.
MITIGATION:
None required.
d) Generate solid waste in excess of state or local standards, or in excess of the capacity of local infrastructure, or otherwise impair the aOainment of solid waste reducon goals? DISCUSSION OF EFFECTS:
Less than Significant Impact. The California Integrated Waste Management Board (CIWMB) oversees, manages, and tracks waste generated within California. Assembly Bill (AB) 939 and Senate Bill 1322 shaped the CIWMB and require that all California ci0es and coun0es implement programs to reduce, recycle, and compost at least 50 percent of wastes by 2000 (PRC Sec0on 41780). To remain compliant with CIWMB, ci0es and coun0es track diverted waste by coun0ng the materials disposed at landfills and subtrac0ng from the base-year amount.
The Project does not propose to increase popula0on or density. Therefore, Project implementa0on will not permanently increase waste management services or require approval of a revised or new Waste Management and Recycling Plan beyond what has already been evaluated in the approved The Ontario Plan and cer0fied GP EIR. The Project will install new infrastructure and may result in disposal of some debris during construc0on. As a result, the contractor must comply with Assembly Bill 939 by diver0ng and recycling waste. The contract will also implement good housekeeping prac0ces according to the California Stormwater BMPs Handbook pursuant to Standard Condi0on SC UTL-01: Waste Management Plan for the Project, which will include temporary lidded bin for collec0on, disposal, recycling, and transport of construc0on waste.
Upon comple0on of construc0on, no addi0onal waste would result from Project implementa0on; regular disposal agreements/ methods are not required. During Project construc0on Standard Condi0on SC UTL-01:
702
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 163
Waste Management Plan will be implemented to prevent minimize impacts throughout Project construc0on.
No Mi0ga0on Measures are needed.
MITIGATION:
None required. However, the following Standard Condi0on applies: SC UTL-01: Waste Management Plan. e) Comply with federal, state, and local management and reduc/on statutes and regula/ons related to solid waste?
DISCUSSION OF EFFECTS:
No Impact. The Project will not increase solid waste produc0on over the long-term, since the Project does not propose to increase popula0on or construct new development. The proposed extension of Ontario’s recycled water system will facilitate sustainable water use, implement water conserva0on, and enhance reliability of water services for Ontario’s consumer base. Therefore, no impacts are an0cipated, and no Mi0ga0on Measures are required.
MITIGATION:
None required.
703
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 164
20. WILDFIRE
20.1 Regulatory Compliance
2019 CEQA Guidelines
In 2019, CEQA Guidelines were amended to address the need to evaluate wildfire impacts since it has worsened in recent history. While wildfires have been prevalent throughout California’s history, more acres of California have burned in the past decade than in the previous 90 years (CALFIRE, Top 20 Largest California Wildfires 2022).
Wildfires typically result from human ac0vi0es, downed powerlines, electrical sources, residen0al development and industrial facili0es” (CA A@orney General 2022). As development expands, residen0al development has the poten0al to expand into wildland-urban interfaces. Approximately one-third of California’s housing units are currently located within these areas (CA A@orney General 2022). As a result of the increased wildfire risks within the state of California, CEQA recognizes best prac0ces to disclose, analyze, and mi0gate wildfire impacts can be found within local jurisdic0ons by u0lizing general plan documents.
CALFIRE Fire Hazard Severity Zones
The CALFIRE Hazard Severity Zone (FHSZs) is “a mapped area that designates zones (based on factors such as fuel, slope, and fire weather) with varying degrees of fire hazard” (CALFIRE 2022). CALFIRE released a FHSZ Viewer that iden0fies areas where wildfires are prone to occur (CALFIRE FHSZ Viewer, 2022). The u0liza0on of this tool is meant to limit wildfire damage in preliminary phases of planning to mi0gate and prevent ac0vi0es or land uses that would cause greater risk for a wildfire. According to CALFIRE’s FHSZ Viewer, the Project is not within designated Fire Hazard Severity Zones (CALFIRE FHSZ Viewer). The closest lands that are categorized as such are east and west of the Project Loca0on, approximately 15 and 18 miles from the Project, outside of City Limits.
20.2 Exis6ng Condi6ons
The Project is in a completely urbanized area. Land use surrounding the Project are on an east-west/north-south street grid and primarily consist of public facili0es, mixed-use, and low to medium density residen0al land use along the Euclid Avenue corridor and within the Downtown District near James R. Bryant Park, west of Euclid Avenue; agriculture is found south of E. Riverside Drive. The exis0ng street grid provides ample access alterna0ves for fire response throughout Ontario. According to CALFIRE’s FHSZ Viewer, the Project is not within designated Fire Hazard Severity Zones (CALFIRE FHSZ Viewer). The closest lands that are categorized as such are north and south of the Project Loca0on, approximately 15 and 18 miles from E. Holt Boulevard and Euclid Avenue.
The Project is within an area that is served by Ontario Fire Department (Sta0on 3 & 6). Sta0on 3 is located at 1408 E. Francis St, Ontario, CA 91761, approximately 3.3 miles southeast from the E. Holt Boulevard and Euclid Avenue intersec0on. Sta0on 6 is located at 2931 E Philadelphia St, Ontario, CA 91761, approximately 1.9 miles northeast of the E. Riverside Drive and Cucamonga Creek (See Figure 2: Local Vicinity Map). Reference Sec.on
9. Hazards and Hazardous Materials: Exis.ng Condi.ons for addi0onal informa0on regarding emergency response and Sta0on personnel/ equipment.
20.3 Project Impacts
a) Substanally impair an adopted emergency response plan or emergency evacuaon plan? DISCUSSION OF EFFECTS:
Less than Significant with Mi.ga.on Incorporated. Reference 5.20.2- Exis0ng Condi0ons. The Project is primarily within the Euclid Avenue ROW; W. F Street; N. Vine Avenue; W. Flora Street; E. B Street; E. C Street; and E. Riverside Drive. According to Ontario’s GP EIR, Euclid Avenue and E. Riverside Drive are designated 704
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 165
evacua0on routes. As men0oned within Sec0on 9. Hazards and Hazardous Waste, Discussion of Effects e), the Project will implement a traffic control plan pursuant to Mi0ga0on Measure MM TRAF-01: Traffic Control Plan to ensure emergency access and safety throughout construc0on ac0vi0es are maintained.
The Project will not involve significant impacts to evacuation routes and emergency response plans within vulnerable, fire-prone areas and will require no addi0onal or unique emergency response services. Use of heavy equipment and trucks within the APE will involve use of traffic control and detours in areas of ac0ve construc0on to reduce impacts on evacua0on routes and emergency access within Ontario’s circula0on system to less than significant levels. To mi0gate significant impairments to the local roadways and evacua0on routes, the Project will implement a traffic control plan pursuant to Mi0ga0on Measure MM TRAF-01: Traffic Control Plan. The proposed traffic control plan will be reviewed and approved by the City departments including the Fire Department to verify that City standards will be met for emergency and fire response. Ac0ve Project construc0on will involve 60 to 80 linear foot segments each day and will be restored with temporary backfill or trench plates at the end of each day.
The contractor will be required to establish a Hazards and Hazardous Materials Manifest and Plan pursuant to MM HAZ-02 to reduce risk and hazards in construc0on areas. In the event of an emergency, fire sta0ons closest to the Project will assist in providing response and may assist with evacua0on during disasters. See Sec0on 20.2- Exis0ng Condi0ons for more informa0on. As a result of the reasons above, the Project will implement Project Mi0ga0on Measures MM HAZ-02: Hazards and Hazardous Materials Manifest and Plan and MM TRAF-01:
Traffic Control Plan during Project construc0on to reduce impacts to a less than significant level.
MITIGATION:
MM TRAF-01: Traffic Control Plan.
MM HAZ-02: Hazards and Hazardous Materials Manifest and Plan. b) Due to slope, prevailing winds, and other factors, exacerbate wildfire risks, and thereby expose Project occupants to pollutant concentraons from a wildfire or the uncontrolled spread of a wildfire?
DISCUSSION OF EFFECTS:
Less than Significant Impact. See Discussion of Effects 5.20.3, a). The Project is within an urbanized area and not within a CALFIRE Fire Hazard Severity Zone. The APE for the Project has similar slope, prevailing winds and other features that are found throughout the Local Vicinity and downtown Ontario. The Project does not propose development that will result in addi0onal permanent occupancy within the APE. The Project will temporarily increase day0me popula0on within ac0ve areas of construc0on. Construc0on ac0vi0es are required to comply with CalOSHA and City standards for safety and will reduce risks to less than significant levels.
As a result, the impacts due to slope, prevailing winds, and other factors related to wildfire are less than significant.
MITIGATION:
None required.
c) Require the installaon or maintenance of associated infrastructure (such as roads, fuel breaks, emergency water sources, power lines or other ulies) that may exacerbate fire risk or that may result in temporary or ongoing impacts to the environment?
DISCUSSION OF EFFECTS:
Less than Significant Impact. The Project will be implemented within the exis0ng City ROW, in an area that is fully developed and served by exis0ng u0li0es and access from a developed street grid. The Project will construct new mains and laterals as well as repurpose some exis0ng laterals within an urbanized loca0ons that are 705
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 166
currently served by many exis0ng u0lity lines; therefore, the Project will not install infrastructure that will require addi0onal maintenance or exacerbate fire risk either temporarily or permanently resul0ng in ongoing impacts to the environment.
For the reasons above, implementa0on of the Project will not exceed what has already been considered and approved by cer0fied GP EIR, the Project will not result in addi0onal impacts due to Project implementa0on.
MITIGATION:
None required.
d) Expose people or structures to significant risks, including downslope or downstream flooding or landslides, as a result of runoff, post-fire slope instability, or drainage changes? DISCUSSION OF EFFECTS:
No Impact. See Discussion of Effects 5.20.3, a) through c). According to CALFIRE’s Fire Hazard Safety Zone Map, the area is designated as Local Responsibility exhibi0ng no high-moderate fire hazards. The Project is not located in an area with slopes or other unique features that are associated with elevated risk from post-fire flooding and landslides due to wildfire. The Project is in an urbanized environment with gently sloping terrain.
Exis0ng land use and the plans for infrastructure proposed with the Project indicate compliance with Ontario’s Municipal Code and will be verified during the standard applica0on of Ontario’s plan check and inspec0on processes during construc0on.
For these reasons, impacts are less than significant. No Mi0ga0on Measures are needed.
MITIGATION:
None required.
706
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 167
21. MANDATORY FINDINGS OF SIGNIFICANCE
21.1 Project Impacts
a) Does the Project have the potenal to substanally degrade the quality of the environment, substanally reduce the habitat of a fish or wildlife species, cause a fish or wildlife populaon to drop below selfsustaining levels, threaten to eliminate a plant or animal community, substanally reduce the number or restrict the range of a rare or endangered plant or animal or eliminate important examples of the major periods of California history or prehistory?
DISCUSSION OF EFFECTS:
Less than Significant with Mitigation Incorporated. The Project is consistent with the scope, assumptions and conclusions for recycled water distribution and use in the Ontario Plan and WMP; it will not have significant impacts beyond what have been identified in the certified GP EIR and previously certified IS/MND SCH# 2016081019 in this regard. Due to the scope of the Project construction (60 to 80 LF of construction daily), location within an existing developed ROW (paved streets open space, and parks) and required implementation of Engineering Standards and conditions by the City of Ontario as well as implementation of mitigation measures for the Project pursuant to the MMRP, substantial degradation of major periods of California history or prehistory, environmental quality, habitat, wildlife populations, plants or animals would not result either directly or indirectly with the implementation of the MMRP.
The Project will implement mitigation measures to protect nesting birds, Euclid Avenue CDF, historical structures, and Heritage trees: Implementation of MM AES-01 through MM AES-07, biological resources (MM BIO-01: Preconstruction Nesting Bird Clearance Survey and MM BIO-01: Preconstruction Nesting Bird Clearance Survey will result in less than significant impacts with mitigation.
Project impacts on air quality, water quality that could impact the environment and indirectly impact wildlife and plants, will be reduced to less than significant levels with the implementation of measures listed in the MMRP, to reduce indirect impacts from emissions of dust, pollution, and hazardous materials and potential for emergencies during construction: MM HAZ-01: Coordination with Local School District and MM HAZ-02:
Hazardous Materials Manifest and Plan; MM HYDRO-01: SWPPP and MM HYDRO-02: Limitation on Construction During Storm Events, BMP NOI-01: Construction Equipment and MM NOI-01: Construction Noise; MM PUB-01: Coordination with Local Agencies and Neighborhoods; MM TRAF-01: Traffic Control Plan (TCP); and SC UTL-01: Waste Management Plan. The Project will implement Tribal mitigation measures MM TCR-01 through TCR-03 and MM CUL-04: Human Remains and Funerary Objects resulting in less than significant impacts on Tribal Cultural Resources and PALEO-01 resulting in less than significant impacts on paleontological resources.
Project impacts on the Euclid Avenue Historic Property will be reduced to less than significant levels with the implementation of mitigation measures MM AES-01 through MM AES-07 and CUL-01 through CUL-06, which require monitoring by the City’s Archaeologist meeting SOIS standards. b) Does the Project have impacts that are individually limited, but cumulavely considerable? (“Cumulavely considerable” means that the incremental effects of a Project are considerable when viewed in connecon with the effects of past Projects, the effects of other current Projects, and the effects of probable future Projects.)
DISCUSSION OF EFFECTS:
Less than Significant with Mitigation Incorporated. The Project was considered in the analysis for the approved GP, The Ontario Plan and certified GP EIR, and would not result in impacts that exceed what was previously identified in these documents. Ongoing operations and maintenance for the Project would not differ materially from what is now occurring. Therefore, the Project will not result in cumulative impacts beyond what was 707
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 168
previously reviewed and evaluated in the 2050 Ontario GP EIR and Recycled Water Master Plan. The Project will implement mitigation measures to reduce short-term, temporary construction impacts to less than significant levels.
Potentially significant short-term, temporary construction impacts have been identified for ten resources in the Project vicinity: aesthetics, agricultural resources, biological resources, cultural resources, geology and soils, hazardous materials, hydrology, transportation, and Tribal resources. Project impacts will be reduced to less than significant levels with the implementation of recommended mitigation measures for the Project: aesthetics (MM AES-01 through MM AES-07 (for protection of CDF and Trees), MM BIO-01: Preconstruction Nesting Bird Clearance Survey), cultural resources (MM CUL-01 through MM CUL-06, hazardous materials (MM HAZ-01:
Coordination with Local School District and MM HAZ-02: Hazardous Materials Manifest and Plan), hydrology (MM HYDRO-01: SWPPP and MM HYDRO-02: Limitation on Construction During Storm Events), transportation and wildfire (MM TRAF-01: Traffic Control Plan (TCP)).
For the reasons stated above, the Project does not have the potential to result in cumulatively considerable impacts.
c) Does the Project have environmental effects which will cause substanal adverse effects on human beings, either directly or indirectly?
DISCUSSION OF EFFECTS:
Less Than Significant with Mi.ga.on Incorporated. The analysis in this report indicates that the planned extension of Ontario’s recycled water distribu0on system will not result in permanent environmental impacts beyond what was previously analyzed in SCH# 2016081019 (ONT, 2016). Therefore, Project implementa0on, with the incorpora0on of mi0ga0on measures will not cause permanent, long-term substan0al adverse effects on human beings either directly or indirectly. The Project is proposed to support approved planned growth within Ontario and the long-term maintenance of parks and an important historical resource associated with the Euclid Avenue Historic Property and surrounding historic areas. Short-term, temporary Project impacts during construc0on could result from increased level of ac0vity, proposed construc0on ac0vi0es, and use of poten0ally hazardous materials during construc0on. Poten0ally significant short-term, temporary impacts will be reduced to less than significant levels with the implementa0on of mi0ga0on measures listed in this document and in the MMRP for the Project, which are summarized as follows: MM GEO-01 through MM GEO-06 (for geology and soils stability), MM HAZ-01, MM HAZ-02 (hazards and hazardous materials manifest and plan), MM TRAF-01 (traffic control), TRAF-02 (encroachment permit) MM PUB-01 (coordina0on with schools, local agencies, and neighborhoods), MM HYDRO-01 (storm water pollu0on and preven0on plan), MM HYDRO-2 (limita0on on construc0on during storm events), BMP NOI-01 and MM NOI (construc0on noise management), SC UTL-01 (waste management) and MM UTL-02 (reconnec0on of water fountains). 708
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 169
EARLIER ANALYSIS
(Earlier analyses may be used where, pursuant to the ering, program EIR, or other CEQA process, one or more effects have been adequately analyzed in an earlier EIR or Migated/Negave Declaraon. Secon 15063(c)(3)(D)):
1) Earlier Analyzes Used. Iden6fy earlier analyzes used and state where they are available for review. See Sec6on a) The Ontario Plan Environmental Impact Report
b) The Ontario Plan
c) City of Ontario Zoning
d) City of Ontario Development Code
e) Community Climate Ac6on Plan
f) City’s approved Recycled Water Master Plan (SCH# 2016081019) All documents listed above are on file with the City of Ontario Planning Department, 303 East B Street, Ontario, California 91764, (909) 395-2436.
709
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 170
MITIGATION MEASURES
AESTHETICS
MM AES-01: Certified Arborist-Activities for City’s Certified Arborist. Prior and throughout construction, City of Ontario shall verify that the following activities are performed for preservation/protection of trees:
A. Hire Certified Arborist. Prior to the start of construction, the City of Ontario shall hire an ISA Certified/ ASCA consulting arborist to evaluate trees affected by construction activities.
B. Evaluation of Declining Trees with Elevated Risk. Prior to construction, City of Ontario’s certified arborist shall individually evaluate the 163 trees that are in decline due to poor prognosis/ location, risks of failure, or defects where they pose as a liability and shall conduct field marking and install barriers for tree protection per MM AES-02: Tree Protection During Construction (CalPacific 2024).
C. Construction Monitoring. Daily throughout construction, the City’s ISA Certified/ ASCA consulting arborist shall determine whether trees shall be protected in place with ongoing monitoring or removed. The City’s Certified Arborist shall also monitor contractor’s maintenance and initial placement of barriers to protect trees outlined in MM AES-02: Tree Protection During Construction (CalPacific 2024). Barrier maintenance shall be verified by the City through inspections and contractor recordkeeping during construction.
Monitoring at a minimum should include: TPZ/PRZ in Segments 1, 2, and 6 within northbound (NB) Euclid Ave: North of E. G Street, between E. E Street to E. F Street and, between E. B St to E. Holt Blvd. Along E.
Riverside Blvd, and near the intersections of E. Riverside Blvd at S. Baker Avenue and at S. Sultana Avenue.
D. Ongoing Tree Monitoring. For trees that were preserved and replaced during Project construction, the City’s ISA Certified/ ASCA consulting arborist shall conduct Level 3 arborist studies, which involve 3- year monitoring, record keeping, and compliance verification by the City’s Planning Department.
MM AES-02: Tree Protection During Construction: Throughout construction, the contractor shall verify that the following measures are implemented to establish a protected radius encircling each tree along the construction alignment. All parts of each tree, including the roots, canopies, trunks, and tree branches, shall be protected. The protected area is referred to as the Protected Root Zone/Tree Protection Zone (TPZ/PRZ)14 .
Contractor compliance with required tree protection in the TPZ/RPZ shall be monitored and verified for compliance with this mitigation measure by the City’s Certified Arborist and verified by the City during construction inspections for the Project in City Right-of-Way and on private property within landscaped areas and hardscape:
A. Fencing or Suitable Alternative Barrier for Existing Tree Protection: Existing trees shall be identified and preserved with protective fencing or suitable alternative to form a TPZ/PRZ encircling the outermost edge of the tree canopy to protect tree roots growing typically within the top 18-inch to 24-inch of the soil. The TPZ/PRZ is defined by measuring “critical root radius” and is more accurate than the dripline for determining the effective protection of trees. To calculate critical root radius, measure the tree’s diameter (dB) 4.5 feet above the ground, measured in inches. For each diameter inch, 1 to 1.5 feet of TPZ/PRZ is required for critical root radius protection. For a trees diameter at breast height (dbh) of 10 inches, a PRZ/TPZ of 10 to 15 feet is required (City of Ontario Development Code, Revised 20151201).
B. Soil Compaction: Throughout construction the contractor shall verify that soil and roots in the PRZ/TPZ are protected from compaction with a layer of geotextile fabric and 6 inches of crushed gravel in landscape areas that may be used for driveways, storage or parking.
C. Mulching Prior to Construction: The contractor shall apply a 4”-6” layer of mulch in the PRZ/TPZ, 1 foot 14 A Protected Root Zone/Tree Protection Zone (PRZ/TPZ) is defined by a Certified Arborist and marks the roots and soil within the tree’s critical root zone. The terms TPZ and PRZ have the same meaning.
710
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 171
away from the trunk, before construction begins pursuant to specifications on the approved Plans and Specifications for the Project.
D. Construction within the PRZ/TPZ: Where work is proposed to occur within and in the vicinity of the PRZ/TPZ, the contractor and City’s Certified Arborist shall verify that trees are identified and preserved with protective fencing or suitable alternative barrier to within a 10-foot radius of the trunk or as directed by the City’s Certified Arborist. Work within the PRZ/TPZ shall be monitored for compliance with the Plans and Specifications for the Project by the City’s Certified Arborist. A record of compliance shall be retained at the construction trailer by the Contractor. Protective barriers shall be installed under supervision of the City’s Certified Arborist prior to any earthwork and barriers shall remain until construction is complete, or until adjacent construction activity no longer threatens tree health. Fencing shall be three to four feet in height and installed at the outermost edge of the PRZ/TPZ or 10- foot radius, whichever is greater. The temporary fencing shall be chain link fencing or other City approved durable material (e.g. snow fencing). Signs stating “Tree Protection Zone – Keep Out” shall be posted either on the fence or stakes. See Appendix C, Figure 3 a- d & Figure 4 a-c. (City of Ontario Development Code, Revised 20151201). iv. Equipment- No construction or staging equipment is allowed within the PRZ/TPZ including use/transport of heavy equipment that will compact and damage the roots. v. Trash- No disposal of construction materials or products including paint, plaster or chemical solutions are allowed in the PRZ/TPZ.
vi. Fill- Natural or preconstruction grade shall be maintained within the PRZ/TPZ. At no time shall soil be in contact with the tree trunk above the root flare.
iv.Irrigation- The PRZ/TPZ should be irrigated sufficiently with clean water to keep the tree in good health and vigor before, during, and after construction. Watering should be coordinated with the contractor pursuant to the recommendations of the City’s Certified Arborist and deep watering may be necessary on a weekly basis.
The depth of irrigation to roots shall be verified on a regular basis during monitoring by the City’s Certified Arborist and during City inspections.
v. Earthwork within the PRZ/TPZ- Either an air spade and/or hand tools shall be used by the contractor as directed and supervised by the City’s Certified Arborist.
E. Trench Lines: The contractor’s trench Lines shall avoid the PRZ/TPZ to the greatest extent feasible. If utilities are present within the PRZ/TPZ, trenches shall be re-routed or bored under trees at a minimum of 36-inches deep, as monitored by the City’s Certified Arborist and verified through City inspections.
F. Root Cutting: During root cutting, exposed major roots greater than 2 inches in diameter or within 5 feet of the trunk) shall not be ripped by construction equipment. Instead, they shall be cut cleanly, if possible, back to a lateral branching root. Cuts shall be clean and made at right angles to the roots and made by the contractor under supervision of the City’s Certified Arborist.
G. Pruning: Pruning for clearance by the contractor, if needed, shall be done to prevent damaging branches with large equipment. All above ground pruning shall be in accordance with Tree Pruning Guidelines (International Society of Arboriculture) and/or the ANSI A300 Pruning Standard (American National Standard for Tree Care Operations) per the most recent edition of ANSI Z133.1 and as supervised by the City’s certified arborist and verified through City inspections, as follows:
i. Private Trees- Prune any limbs or tree structures that would compromise the safety of workers under the tree during construction activity; this should be done at the discretion of the contractor and upon approval of the homeowner.
ii. Bracing- If needed, use guy wires and other effective bracing methods to secure trees. iii. Hand Tools/Air Spade- Expose roots for trimming with hand tools or an air spade as required/supervised by the City’s Certified Arborist. Contractor shall not use large construction machinery such as a backhoe or excavator.
iv. Root Pruning- Under Certified Arborist supervision, contractor shall hand-prune all necessary root structures less than 2 inches with sharp loppers or hand pruners and with a pruning saw or other similar 711
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 172
tool for larger roots. Disinfect the pruners and other cutting tools between trees to avoid disease contamination. Isopropyl alcohol (70%) is effective to clean the tools. The further away from the tree that the roots can be cut, the better it is.
v. Backfill- Backfill to assure stability of each tree leaving bracing in place at the direction of the City’s Certified Arborist and pursuant to Plans Specifications and notes on the approved landscape plan as verified through City inspections. (Based on recommendations from CalPacific Arborist Report, 2024). v.i. Post Earthwork Requirement- The contractor shall apply absorbent tarp or heavy cloth fabric overlain by compost or wood chip mulch to cover new grade cuts or as directed by the City’s Certified Arborist and verified by the City through inspections.
v.i.i. Post Construction Grades- Contractor shall return and maintain surfaces to natural or preconstruction grade within the PRZ/TPZ. Implementation shall be verified through City inspections.
H. Pruning Cuts: The Contractor and City’s Certified Arborist shall verify pruning cuts or damaged bark is cut clean to heal. No tree seal or paint shall be used after pruning.
I. Critical Root Zone Monitoring by Certified Arborist: The City’s Certified Arborist shall monitor during construction for tree stability and health in areas where more than 33% of the root zone is impacted, if cut roots have a diameter greater than 2 inches, or if roots cuts within 5 feet of the trunk are needed. Cuts should be clean and at right angles to the roots and cut back to the branching lateral. Monitoring records of cutting shall be kept on file at the construction trailer by the contractor. See MM AES-01.
J. PRZ/TPZ Monitoring during Construction- Construction precautions employed under supervision of the City’s Certified Arborist to protect sensitive root zones from undue soil compaction shall be maintained by the contractor throughout construction. Staging shall be limited to areas outside of PRZ/TPZ's without specific authorization from the City’s Certified Arborist. Certified Arborist monitoring throughout construction within the PRZ/TPZ is required and shall be verified by the City of Ontario and Contractor through a written log and daily record keeping available for review at the construction trailer during construction inspections.
K. Irrigation- The PRZ/TPZ shall be irrigated according to the current City irrigation regime to avoid additional stress on the trees. The City’s Arborist shall be notified by the contractor of installation of new and modified irrigation components; these areas shall be monitored by the City’s Certified Arborist within the PRZ/TPZ and verified through City inspections.
L. Fencing Maintenance- In areas where protective fencing is installed for trees City inspections shall verify that the Contractor and City’s Arborist conduct daily inspections and take corrective action to verify correct placement and effectiveness of protective fencing or equivalent barriers. i. Protective fencing or an equivalent barrier should be placed at the outer edge of the PRZ/TPZ under the supervision of the City’s Certified Arborist. The contractor shall be responsible for monitoring the appropriate maintenance of the fence throughout construction as verified by City’s Certified Arborist and inspectors.
ii. Protective fencing or an equivalent barrier must be established and maintained by the contractor and verified by the City’s Arborist and through City inspections so that barriers are visible and structurally sound enough to deter construction equipment, foot traffic, and the storing of equipment under tree canopies.
iii. Signs notifying sub-contractors and construction crews of the fines for dumping should be maintained on fencing/barriers around trees by the contractor and verified through City Arborist monitoring and City inspections. Oil from construction equipment, cement, concrete washout, acid washes, paint, and solvents are toxic to tree roots and are not allowed in the PRZ/TPZ. (Based on recommendations from CalPacific Arborist Report, 2024).
MM AES-03: Tunneling: Prior to the finalization of Project plans, the City of Ontario Utilities Department shall verify that tunneling for the proposed utility lines occurs at a depth of three-foot or greater grade under trees where impacts may occur to their structural root systems. It is imperative that structural roots (and any 712
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 173
residual taproot (depending on species) be preserved within the Critical Root Zone (CRZ), which is the area immediately adjacent to the trunk where roots essential for tree health and stability are located. Tunneling within the CRZ must be avoided. The table below shows the recommended placement of entrance and exit pits (according to ISA BMPs) for a tunneling auger and machinery within the PRZ/TPZ to protect CRZ. Avoid any trenching within the PRZ/TPZ plus four radial feet. Any trenching in the vicinity of a tree should be setback radially.
Recommended Tree Face- Auger Distance
Tree Diameter (DBH)
Inches
Minimum Offset Distance from Trunk Face
Feet
Minimum Length of Bore Hole
Inches
2 1 2
3 2 3
5 5 5
10 8 10
15 12 15
20 15 20
Source: Managing Trees During Construc6on, Second Edi6on- Best Management Prac6ces, Fite et al, 2016. (Based on recommenda6ons from CalPacific Arborist Report, 2024)
MM AES-04: Hydro Excavation: If it is not possible to operate outside of the PRZ/TPZ and tunneling is not a feasible alternative, the City’s Certified Arborist must be consulted to assess and monitor the conditions and identify methods that will minimize impact to trees. Minimally invasive hydro-vac or hydro-excavation is a technique that may be used under supervision of the City’s Certified Arborist’s to strategically and carefully remove soil within the root zone without significantly damaging the root tissue. This technique uses high pressure air or water to clear a pathway for utilities routed within the root zone, but it must be used by a carefully trained and proficient crew.
MM AES-05: Tree and Landscaping Replacement Plan: Prior to the start of construction, the City of Ontario Utilities Department shall verify and approve the Plans, Specifications and Estimates for the Project, including a tree and landscaping replacement plan for the entire Project that is prepared by a licensed landscape architect, horticulturalist, certified arborist, or other related professional. The landscape plan shall be reviewed and approved by the City’s Historical Preservation Subcommittee and the City Planning Department and implemented throughout construction by the contractor as verified by the City through City Arborist monitoring and city inspections. The landscaping plan implementation shall comply with the Euclid Avenue Historic Property Treatment and Management Plan (HPTMP) for protection of CDF16 trees (see MM CUL-06), City Landscape Development Guidelines for water conservation and recycled water irrigation systems, and the Tree Ordinance for tree removal/replacements. The Tree and Landscaping Plan shall include:
A. Public Notice for Tree Removal. Prior to the removal of any trees the residents shall be notified by the City of Ontario if their trees have been preliminarily assessed as being in poor condition (health, stature, location, risk, etc.). The notification shall include the following.
Resident:
“As part of our efforts to improve the existing utilities in your area, a certified arborist has evaluated the trees in the vicinity of your property. You may have noticed a small aluminum tag affixed to several trees on or near your property. Your tree has been determined to possess a condition (poor health, stature, location, etc.) that warrants additional evaluation. It is highly recommended that you consider asking a local arborist certified 16 The Euclid Avenue Historic Property Treatment and Management Plan (HPTMP) lists of Character Defining Features (CDF) for Euclid Avenue. CDF must be protected in place or restored under supervision of the City’s Archaeologist 713
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 174
by the International Society of Arboriculture (ISA) to evaluate your tree. Please consider accessing the ISA website at h1ps://www.isa-arbor.com.” (Based on recommendations from CalPacific Arborist Report, 2024).
B. Tree Replacement and Landscaping Replacement: If death to any landscaping or tree occurs during construction or within the three-year post-construction monitoring period, replacement shall occur within a timely manner, or immediately as described in sections i., ii., and iii below. The damage or removal of any Heritage Tree or CDF tree (see MM CUL-06) that are protected pursuant to the City’s Development Code, or encroachment into a PRZ/TPZ or CRZ, shall require an evaluation by the City’s Certified Arborist as to the resulting condition, prescribed treatment to repair the damage, tree replacement if removed, and monetary value of the tree if removed or damaged beyond repair.
C. Replacement of Heritage Trees and Landscaping-Healthy Heritage Trees that are approved for removal shall be replaced at a ratio of 2:1 except within HPTMP boundaries. (Tree and Landscape Restoration within the HPTMP shall be 1:1 and is described in MM CUL-06: Historic Restoration). Non-status trees may be mitigated at a 1:1 ratio with quality, locally grown nursery stock comprised of a mix of 24-in boxed and 15-gallon specimens so that the total size of replacements are equal to removed trees. In addition, the Planning Department has an approved list of tree species that must be considered, however with Heritage Trees, a like-kind species must be considered. Replacement tree maintenance shall follow recommendations for soil amendments, linear root barriers, backfill, and irrigation as shown on the approved landscape plans for the Project. Implementation of all recommended parameters are to be implemented at the discretion of the Planning Director. (Based on recommendations from CalPacific Arborist Report, 2024).
MM AES-06: Protection in Place and Construction Monitoring for CDF and Historic Structures: During construction, the City of Ontario, Utilities Department shall provide construction monitoring by the City’s Archaeologist (who meets the Secretary of Interior’s Standards for education and experience) and a geotechnical engineer licensed to work in California. Monitoring shall be provided for earthwork, pipeline construction, connections within the Euclid Avenue parkway and median, and irrigation system modifications, throughout the Project Alignment, and within 25 feet of any CDF. This work is further detailed in MM CUL-01 through MM CUL-06.
MM AES-07: Permanent Above-grade Equipment: Prior to the start of construction, the City of Ontario Utilities Department shall verify that all above grade related equipment shall be screened from public view by any combination of non-reflective paint to match surrounding area, collocation on existing light fixtures or poles, and/or through a stealth design.
AIR QUALITY
AQ-01: Fugitive Dust Control: City of Ontario Utilities Department shall verify that the following measures shall be incorporated into Project plans and specifications and implemented throughout construction:
A. High Winds- All clearing, grading, earth-moving, or excavation activities shall cease when winds exceed 25 mph per SCAQMD guidelines in order to limit fugitive dust emissions.
B. Watering- The contractor shall verify that all disturbed areas within the Project are watered with complete coverage of disturbed areas at least two times a day, preferably in the mid-morning, afternoon, and after work is done for the day. Additional watering can be applied if fugitive dust is observed leaving the Project site.
C. Speed Limit- The contractor shall ensure that construction traffic speeds on the Project site are reduced to 10 miles per hour or less.
D. Idling- Plans, specifications and contract documents shall direct that a sign must be posted on-site stating that construction workers shall not idle diesel engines in excess of five minutes.
E. Equipment- During grading activity, all construction equipment greater than 150 horsepower shall be CARB Tier 3 Certified.
F. Paints- Only Zero-Volatile Organic Compounds” paints (no more than 150 gram/liter of VOC) and/or High714
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 175
Pressure Low Volume (HPLV) applications consistent with South Coast Air Quality Management District Rule 1113 shall be used if painting occurs within the footprint of the Project.
G. Track out- Install and maintain track out control devices in effective condition at all access points where paved and unpaved access or travel routes intersect (e.g., Install wheel shakers, wheel washers, and limit site access.
H. Stable Crust- Reestablish stable surfaces on all roadways, driveways, sidewalks, etc., shall be completed after grading and earthwork, unless seeding or soil binders or covering is used in travel areas.
I. Covered Truckloads- When materials are transported off-site, all material truckloads shall be covered, effectively wetted to limit visible dust emissions, and at least six inches of freeboard space from the top of the container shall be maintained.
J. Street Sweeping- All streets shall be swept at least once daily using SCAQMD Rule 1186 certified street sweepers if visible soil materials are carried to adjacent streets.
K. Dust Control- The contractor or City’s Utilities Department shall designate a person or persons to monitor the dust control program and to order increased watering, as necessary, to prevent dust offsite.
L. Public Contact- Post a publicly visible sign with the telephone number and person to contact regarding dust complaints. This person shall respond and take corrective action within 24 hours.
M.Materials/Stockpiles- Any on-site stockpiles of debris, dirt or other dusty material shall be covered or watered as necessary to minimize fugitive dust.
N. Electric Equipment- Use electric construction equipment where technically feasible, i.e., a competent electronic version of the equipment is commercially available.
AQ-02: Exhaust Emissions Control: Equipment emissions shall be minimized by the contractor throughout construction with the following practices documented in the contractor’s compliance log and verified by the City of Ontario during construction inspections.
A. Equipment Maintenance- Utilize well-tuned off-road construction equipment.
B. Tier-3- Establish a preference for contractors using Tier 3-rated or better heavy equipment.
C. Idling- Enforce 5-minute idling limits for both on-road trucks and off- road equipment.
BIOLOGICAL RESOURCES
MM HYDRO-01: SWPPP and MM HYDRO-02: Limita.on on Construc.on During Storm Events. See Sec0on 10.
Hydrology and Water Quality for more informa0on.
MM BIO-01: Preconstruction Bird Nesting Clearance Survey: Prior to construction, the City of Ontario shall retain a biologist to conduct preconstruction nesting surveys and establish buffers for active nests if needed.
If construction occurs between February 1st and August 31st, the Contractor and City of Ontario shall schedule a pre-construction clearance survey for nesting birds within three (3) days of the start of mobilization, vegetation removal, tree work, or ground disturbance to ensure that no nesting birds will be disturbed during construction. The biologist shall provide a report of findings to the contractor and City.
A. Retain a Qualified Biologist- The City of Ontario shall retain a qualified biologist to conduct the clearance survey that should document a negative survey with a brief letter report indicating that no impacts to active avian nests will occur.
B. Buffers for Active Nests- If an active avian nest is discovered during the pre-construction clearance survey, construction activities should stay outside of a no-disturbance buffer. The size of the nodisturbance buffer will be determined by the City’s Biologist and will depend on the level of noise and/or surrounding anthropogenic disturbances, line of sight between the nest and the construction activity, type and duration of construction activity, ambient noise, species habituation, and topographical barriers.
These factors will be evaluated on a case-by-case basis when developing buffer distances.
Establishment of Buffers for Active Nests and Limits of Construction- Buffers will be established to avoid an active nest by the City’s Biologist in the field with flagging, fencing, or other appropriate barriers; and construction personnel will be instructed on the sensitivity of nest areas. The City’s Biologist should be present to delineate the boundaries of the buffer area and to monitor the active nest to ensure that nesting behavior is 715
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 176
not adversely affected by the construction activity. Once the young have fledged and left the nest, or the nest otherwise becomes inactive under natural conditions, construction activities within the buffer area can occur.
CULTURAL RESOURCES
MM CUL-01: Archeological and Historical Monitoring (Modified from previously approved Mi0ga0on Measures PREV MM VI-03: Cultural Resources).
A. Retain a Qualified Archaeological Monitor- Prior to mobiliza0on, the City’s qualified archaeological monitor mee0ng SOIS standards shall be retained by the City of Ontario for establishing protec0on buffers prior to construc0on and monitoring cultural resources throughout construc0on.
B. CDF Buffers - The City’s archaeological monitor shall establish buffers for CDF structures and features prior to mobiliza0on and the monitor shall observe all construc0on ac0vi0es involving earthwork, staging, access, construc0on, and tree work within 20 feet of CDF structures and features. This includes materials deliveries, access, trenching, any tree work, and ground disturbance ac0vi0es for pipe installa0ons, irriga0on system modifica0ons, tree removal/replacements within 25 feet of any CDF features such as trees, masonry and granite curbs, scored sidewalks, and structures iden0fied on Figures 2A and 2B.
C. CDF Structure Monitoring - CDF Structures that are to be protected in place, avoided, and monitored by the City’s archaeologist throughout construc0on. The monitor shall have the authority to halt and redirect work if damage to CDF structures is detected and to recommend alterna0ve construc0on methods to minimize impacts such as use of non-mechanized hand tools and hand digging. The following CDF structures are to be monitored during construc0on by the City:
i. Bandstand (north of E. C Street);
ii. Veterans Obelisk (north of E. B Street);
iii. Mule Car (south of E. B Street);
iv. Women’s Temperance Union Drinking Fountain (north of E. C Street); v. Armstrong rose beds;
vi. King Standard Lampposts and reconstructed lampposts (both referred to as vintage streetlights); vii. Granite and concrete curb and gu@er; and,
viii. Scored sidewalks in the parkways.
D. Buried Resources Monitoring – The City of Ontario shall provide monitors during all earthwork in na0ve soil. The City of Ontario shall verify throughout construc0on that monitoring is carried out under the direct supervision of a cultural resources professional who meets the U.S. Secretary of the Interior’s Professional Qualifica0on Standards for archaeology. The monitor would be empowered to temporarily halt or redirect construc0on work in the vicinity of any find un0l the project archaeologist and Tribal representa0ve can evaluate it. (See MM TCR-01: Pre-contact Cultural Resources and MM TCR-02:
Records and Documents). In the event of a new find, salvage excava0on and repor0ng would be required. Prehistoric or historic cultural materials that may be encountered during ground-disturbing ac0vi0es include:
i. Historic-period ar0facts such as glass bo@les and fragments, cans, nails, ceramic and po@ery fragments, and other metal objects;
ii. Historic-period structural or building founda0ons, walkways, cisterns, pipes, privies, and other structural elements;
iii. Prehistoric flaked-stone ar0facts and debitage (waste material), consis0ng of obsidian, basalt, and or cryptocrystalline silicates;
iv. Groundstone ar0facts, including mortars, pestles, and grinding slabs; 716
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 177
v. dark, greasy soil that may be associated with charcoal, ash, bone, shell, flaked stone, groundstone, and fire affected rocks; and
vi. Human remains and Funerary objects.
MMM CUL-02: Vibration Monitoring: Prior to approval of final improvement plans and specifications, the City Engineer or designated representative shall verify that the plans show both a 50-foot radius from trenches and a 100-foot radius between proposed driven shoring systems and historic era structures and resources (P-36- 15982: Euclid Avenue; P-36-15983: Mule Car and railroad tracks; P-36-16417: San Bernadino-Sonora Road).
During construction, the City’s licensed geotechnical engineer for the Project will utilize these areas for vibration monitoring and settlement monitoring where plans show excavations will be deeper than 10 feet and the need for shoring is established or for work within the Project Alignment and adjacent to the Euclid Avenue center median.
MM CUL-03: Worker Environmental Awareness Training: The Ontario Utilities Department shall schedule and hold a worker environmental awareness (WEAP) training prior to contractor mobilization. The purpose of the training is to, alert field personnel to the possibility of buried prehistoric or historic cultural deposits, fossils, and CDF avoidance and protection as well as next steps if resources are encountered or damage occurs.
MM CUL-04: Human Remains and Funerary Objects. If human remains are encountered during any project ac0vi0es, State Health and Safety Code Sec0on 7050.5 states that no further disturbance shall occur un0l the County Coroner has made a determina0on of origin and disposi0on pursuant to Public Resources Code Sec0on 5097.98. The County Coroner must be no0fied of the find immediately. If the remains are determined to be prehistoric, the Coroner will no0fy the NAHC, which will determine and no0fy a Most Likely Descendant (MLD).
With the permission of the landowner or his/her authorized representa0ve, the MLD may inspect the site of the discovery. The MLD shall complete the inspec0on within 48 hours of no0fica0on by the NAHC.
MM CUL-05: Protection and Restoration of Masonry and Structures. Prior to start of construction a contractor experienced in historical restorations shall be retained for the Project by the City for the purpose of restoring historic-age masonry (granite cobblestone curbs), curbs, gutters, and sidewalks, structures and CDFs that may be damaged during construction. Said restoration must be completed prior to issuance of certificate of completion to the contractor by the City.
A. Masonry and structures shall be avoided, protected in place, and preserved to the greatest extent feasible by the City’s contractor during construction as follows:
i. CDF Protection in Place. Granite cobblestone curbs (defined as CDFs) must be protected in place throughout the entire Euclid Avenue median and within much of the Euclid Avenue parkway and in other parts of the downtown. Archaeological monitoring is required within 25 feet of these CDF. The City’s monitors will have the authority to halt and redirect work if there are signs of damage to CDF. ii. CDF Avoidance (Off-site Storage and Reinstallation). Construction activities should avoid granite cobblestone curbs where feasible. This involves establishment of buffers and avoidance or these CDF features can be carefully removed, stored/protected, and reinstalled by the Contractor under supervision of the City’s monitoring archaeologist.
iii. CDF Preservation and Restoration. Where avoidance is not feasible, the overall design, spatial relationships, and visual character of the CDF and granite cobblestone curbs aligning the Euclid Avenue parkways [and throughout the downtown northern portion of the project alignment (See Figure 2a and MM CUL-06)] should be preserved and maintained to the greatest extent feasible or restored by the City’s historical contractor:
a) Retain existing granite cobblestone and concrete curbs and historic-age sidewalks by creating 717
ONTARIO MUNICIPAL UTILITIES COMPANY
EUCLID AVENUE RECYCLED WATER SYSTEM PROJECT DRAFT IS/MND JUNE 2025 178
barriers/buffers between active construction or staging and these CDF features. b) Carefully remove existing granite cobblestone and concrete curbs and historic-age sidewalks (CUL05, a, ii) prior to construction and replace once construction is complete. c) Repair damaged concrete by patching with new that duplicates the old in strength, composition, color, and texture.
d) Replace severely deteriorated or missing portions of granite cobblestone and concrete curbs in kind to match extant originals.
1. Replacement cobblestone curbs should be replaced consistently with a plan developed by the City.
2. When sections of modern concrete curb replace the original cobblestone curbs, these should be replaced with cobblestone curbs per the Euclid Avenue Historic Property Treatment and Maintenance Plan to re-establish historic continuity as much as possible.
3. Do not paint the existing historic cobblestone and concrete curbs; remove paint from such features as appropriate (Caltrans 2023:46).
MM CUL-06: Historic Restoration. Trees that are identified for removal with the project or that are incidentally damaged or die during the three- year monitoring period shall be replaced according to Mitigation Measures MM AES-01 through AES-05. Restorations shall adhere to the following guidance and input from the City’s arborist and landscape architect for the Project regarding planting and care:
A. CDF Trees – CDF trees are any of the double row of pepper trees in the Euclid Avenue median, any silk oak trees in the Euclid Avenue Parkway, and any oaks planted in the parkway between Holt Boulevard and G Street. (Per the Euclid Avenue Historic Preservation, Treatment, and Maintenance Plan, individual severely damaged trees should be replaced in kind or with a species compatible with the historic character of the historic property). New trees of a compatible species can be planted to complete gaps in continuous tree rows to restore the original landscape design of the parkways and median and overall visual character of the Euclid Avenue historic property.
i. Size - 60-inch boxed replacement trees will be planted at a 1:1 ratio in compliance with the HPTMP. ii. Species - Schinus molle (California pepper) shall be installed as replacement trees within the Euclid Avenue median. Grevillea robusta (silk oak) shall be installed as replacement trees in the Euclid Avenue parkway. Arbutus unedo (strawberry tree) shall be installed as replacement trees alongFlora Street.