Ontario City Council
November 4, 2025

WHEREAS, The Ontario Plan (TOP) 2050 Supplemental Environmental Impact Report (SEIR)(SCH No. 2021070364, certified by the City Council on August 16, 2022, hereinafter referred to as Certified SEIR), in which development and use of the Project site was discussed; and
WHEREAS, the Planning Director of the City of Ontario prepared and approved for attachment to the certified Environmental Impact Report, an Addendum to the Certified EIR (hereinafter referred to as EIR Addendum) 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 environmental impacts of this Project were thoroughly analyzed in the SEIR Addendum, which concluded that implementation of the Project could result in a number of significant effects on the environment that were previously analyzed in the Certified SEIR, and that the Certified SEIR identified mitigation measures that would reduce each of those significant effects to a less-than-significant level; and WHEREAS, the City's "Local Guidelines for Implementing the California Environmental Quality Act (CEQA)" provide for the use of a single environmental assessment in situations where the impacts of subsequent projects are adequately analyzed; and
WHEREAS, the Application is a project pursuant to the California Environmental Quality Act — Public Resources Code Section 21000, et seq. — (hereinafter referred to as CEQA) and an SEIR Addendum has been prepared to determine possible environmental impacts; and
WHEREAS, Ontario Development Code Table 2.02-1 (Review Matrix) grants the Planning Commission the responsibility and authority to review and act on the subject Application; and
WHEREAS, the Project has been reviewed for consistency with the Housing Element of the Policy Plan component of TOP 2050, as State Housing Element law (as prescribed in Government Code Sections 65580 through 65589.8) requires that development projects must be consistent with the Housing Element, if upon consideration of all its aspects, it is found to further the purposes, principals, goals, and policies of the Housing Element; and
WHEREAS, the Project is located within the Airport Influence Area of Ontario International Airport, which encompasses lands within parts of San Bernardino, Riverside, and Los Angeles Counties, and is subject to, and must be consistent with, the policies and criteria set forth in the Ontario International Airport Land Use Compatibility Plan (hereinafter referred to as ALUCP), which applies only to jurisdictions within San 2147
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Bernardino County, and addresses the noise, safety, airspace protection, and overflight impacts of current and future airport activity; and
WHEREAS, City of Ontario Development Code Division 2.03 (Public Hearings) prescribes the manner in which public notification shall be provided and hearing procedures to be followed, and all such notifications and procedures have been completed; and
WHEREAS, on September 15, 2025, the Development Advisory Board of the City of Ontario conducted a hearing to consider the Addendum and the Project, and concluded said hearing on that date, voting to issue Decision Nos. DAB25-031 AND DAB25-032, respectively, recommending that the Planning Commission approve the Application; and WHEREAS, as the first action on the Project, on September 23, 2025, the Planning Commission issued a Resolution adopting the SEIR Addendum, finding that the proposed Project introduces no new significant environmental impacts and applying all previously adopted mitigation measures to the Project, which were incorporated by reference; and WHEREAS, on September 23, 2025, the Planning Commission of the City of Ontario conducted a hearing to consider the Project, and concluded said hearing on that date; and
WHEREAS, all legal prerequisites to the adoption of this Resolution have occurred.

NOW, THEREFORE, IT IS HEREBY FOUND, DETERMINED, AND RESOLVED by the Planning Commission of the City of Ontario, as follows:

SECTION 1: Environmental Determination and Findings. As the decisionmaking body for the Project, the Planning Commission has reviewed and considered the information contained in the Addendum, the initial study, 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 Addendum, the initial study, and the administrative record, including all written and oral evidence presented to the Planning Commission, the Planning Commission finds as follows:
(1) The environmental impacts of the Project were reviewed in conjunction with an Addendum to TOP 2050 Supplemental Environmental Impact Report (SEIR)(State Clearinghouse No. 2021070364), certified by the Ontario City Council on August 16, 2022, in conjunction with File No. PGPA20-002; and
(2) The SEIR Addendum and administrative record have been completed in compliance with CEQA, the State CEQA Guidelines, and the City of Ontario Local CEQA Guidelines; and
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(3) The City's "Local Guidelines for Implementing the California Environmental Quality Act (CEQA)" provide for the use of a single environmental assessment in situations where the impacts of subsequent projects are adequately analyzed. This Application introduces no new significant environmental impacts; and (4) All previously adopted mitigation measures shall be a condition of Project approval, as they are applicable to the Project, and are incorporated herein by this reference; and
(5) The SEIR Addendum contains a complete and accurate reporting of the environmental impacts associated with the Project, and reflects the independent judgment of the Planning Commission; and
(6) There is no substantial evidence in the administrative record supporting a fair argument that the Project may result in significant environmental impacts.

SECTION 2: Subsequent or Supplemental Environmental Review Not Required. Based on the SEIR Addendum, all related information presented to the Planning Commission, and the specific findings set forth in Section 1, above, the Planning Commission finds that the preparation of a subsequent or supplemental Certified SEIR is not required for the Project, as the Project:
(1) Does not constitute substantial changes to the Certified SEIR that will require major revisions to the Certified SEIR due to the involvement of new significant environmental effects or a substantial increase in the severity of previously identified significant effects; and
(2) Does not constitute substantial changes with respect to the circumstances under which the Certified SEIR was prepared, that will require major revisions to the Certified SEIR due to the involvement of new significant environmental effects or a substantial increase in the severity of the previously identified significant effects; and (3) Does not contain new information of substantial importance that was not known and could not have been known with the exercise of reasonable diligence at the time the Certified SEIR was certified/adopted, that shows any of the following:
(a) The Project will have one or more significant effects not discussed in the Certified SEIR; or
(b) Significant effects previously examined will be substantially more severe than shown in the Certified SEIR; or
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(c) Mitigation measures or alternatives previously found not to be feasible would in fact be feasible and would substantially reduce one or more significant effects of the Project, but the City declined to adopt such measures; or (d) Mitigation measures or alternatives considerably different from those analyzed in the Certified SEIR would substantially reduce one or more significant effects on the environment, but which the City declined to adopt.

SECTION 3: Housing Element Compliance. Pursuant to the requirements of California Government Code Chapter 3, Article 10.6, commencing with Section 65580, as the decision-making body for the Project, the Planning Commission finds that based upon the facts and information contained in the Application and supporting documentation, at the time of Project implementation, the Project is consistent with the Housing Element of the Policy Plan (General Plan) component of TOP 2050, as the Project site is not one of the properties in the Housing Element Sites Inventory contained in Tables B-1 and B-2 of the Housing Element Technical Report.

SECTION 4: Airport Land Use Compatibility Plan (ALUCP) Compliance.

The California State Aeronautics Act (Public Utilities Code Section 21670, et seq.) requires that an Airport Land Use Compatibility Plan be prepared for all public use airports in the State; and requires that local land use plans and individual development proposals must be consistent with the policies set forth in the adopted Airport Land Use Compatibility Plan.
(1) On April 19, 2011, the City Council of the City of Ontario approved and adopted the Ontario International Airport Land use Compatibility Plan, establishing the Airport Influence Area for Ontario International Airport, which encompasses lands within parts of San Bernardino, Riverside, and Los Angeles Counties, and limits future land uses and development within the Airport Influence Area, as they relate to noise, safety, airspace protection, and overflight impacts of current and future airport activity. As the decision-making body for the Project, the Planning Commission has reviewed and considered the facts and information contained in the Application and supporting documentation against the ONT ALUCP compatibility factors, including [1] Safety Criteria (ONT ALUCP Table 2-2) and Safety Zones (ONT ALUCP Map 2-2), [2] Noise Criteria (ONT ALUCP Table 2-3) and Noise Impact Zones (ONT ALUCP Map 2-3), [3] Airspace protection Zones (ONT ALUCP Map 2-4), and [4] Overflight Notification Zones (ONT ALUCP Map 2-5). As a result, the Planning Commission therefore finds and determines that the Project, when implemented in conjunction with the conditions of approval, will be consistent with the policies and criteria set forth within the ONT ALUCP; and SECTION 5: Concluding Facts and Reasons. Based upon the substantial evidence presented to the Planning Commission during the above-referenced hearing, 2150
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and upon the specific findings set forth in the Sections above, the Planning Commission hereby concludes as follows:
(1) The proposed Tentative Tract Map is consistent with the goals, policies, plans, and exhibits of the Vision, Policy Plan (General Plan), and City Council Priorities components of The Ontario Plan 2050, and applicable area and specific plans, and planned unit developments. The proposed Tentative Tract Map is located within the Medium Density land use district of the Policy Plan Land Use Map, and Planning Area 11 (RD-7 / Row Townhomes) of the Esperanza Specific Plan zoning district. The proposed subdivision is consistent with the goals, policies, plans, and exhibits of the Vision, Policy Plan (General Plan), and City Council Priorities components of TOP, as the project will contribute to providing “a spectrum of housing types and price ranges that match the jobs in the City, and that make it possible for people to live and work in Ontario and maintain a quality of life” (Goal LU-1). Furthermore, the Project will promote the City’s policy to “incorporate a variety of land uses and building types in our land use planning efforts that result in a complete community where residents at all stages of life, employers, workers, and visitors have a wide spectrum of choices of where they can live, work, shop, and recreate within Ontario” (Policy LU-1.6 Complete Community). (2) The design or improvement of the proposed Tentative Tract Map is consistent with the goals, policies, plans and exhibits of the Vision, Policy Plan (General Plan), and City Council Priorities components of The Ontario Plan 2050, and applicable specific plans and planned unit developments. The proposed Tentative Tract Map is located within the Medium Density Residential land use district of the Policy Plan Land Use Map, and Planning Area 11 (RD-7 / Row Townhomes) of the Esperanza Specific Plan. The proposed design or improvement of the subdivision is consistent with the goals, policies, plans, and exhibits of the Vision, Policy Plan (General Plan), and City Council Priorities components of TOP, as the project will contribute to providing “[a] high level of design quality resulting in neighborhoods, commercial areas, public spaces, parks, and streetscapes that are attractive, safe, functional, human-scale, and distinct” (Goal CD-2). Furthermore, the Project will promote the City’s policy to “create distinct residential neighborhoods that promote a sense of community and identity by emphasizing access, connectivity, livability, and social interaction through such elements as:
 A pattern of smaller, walkable blocks that promote activity, safety, and access to nearby amenities and services;
 Varied parcel sizes and lot configurations to accommodate a diversity of housing types;
 Traffic calming measures to slow traffic and promote walkability while maintaining acceptable traffic flows and emergency evacuation access;  Floor plans that encourage views onto the street and de-emphasize the visual and physical dominance of garages (introducing the front porch as the "outdoor 2151
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living room"), as appropriate; and
 Landscaped parkways, with sidewalks separated from the curb and designed to maximize safety, comfort, and aesthetics for all users." (Policy CD-2.2 Neighborhood Design).
(3) The site is physically suitable for the type of development proposed.

The project site meets the minimum lot area and dimensions of Planning Area 11 (RD-7 / Row Townhomes) of the Esperanza Specific Plan and is physically suitable for the type of residential development proposed in terms of zoning, land use and development activity proposed, and existing and proposed site conditions. (4) The site is physically suitable for the density/intensity of development proposed. The project site is proposed for residential development at 16.7 DUs/acre.

The project site meets the minimum lot area and dimensions of the Planning Area 11 (RD-7 / Row Townhomes) of the Esperanza Specific Plan and is physically suitable for this proposed density of development.
(5) The design of the subdivision or the proposed improvements thereon, are not likely to cause substantial environmental damage, or substantially and avoidably injure fish or wildlife, or their habitat. The Project site is not located in an area that has been identified as containing species identified as a candidate, sensitive, or special status species in local or regional plans, policies or regulations or by the California Department of Fish and Wildlife or the U.S. Fish and Wildlife Service, nor does the site contain any riparian habitat or other sensitive natural community, and no wetland habitat is present on site; therefore, the design of the subdivision, or improvements proposed thereon, are not likely to cause substantial environmental damage, or substantially and avoidably injure fish or wildlife, or their habitat. (6) The design of the subdivision, or the type of improvements thereon, are not likely to cause serious public health problems. The design of the proposed subdivision, and the residential improvements existing or proposed on the project site, are not likely to cause serious public health problems, as the project is not anticipated to involve the transport, use, or disposal of hazardous materials during either construction or project implementation, include the use of hazardous materials or volatile fuels, nor are there any known stationary commercial or industrial land uses within close proximity to the subject site that use/store hazardous materials to the extent that they would pose a significant hazard to visitors or occupants to the project site. (7) The design of the subdivision, or the type of improvements thereon, will not conflict with easements acquired by the public at large for access through, or use of property within, the proposed subdivision. The proposed subdivision has provided for all necessary public easements and dedications for access through, or use of property within, the proposed subdivision. Furthermore, all such public easements and 2152
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dedications have been designed pursuant to: (a) the requirements of the Policy Plan component of TOP 2050 and applicable area plans; (b) applicable specific plans or planned unit developments; (c) applicable provisions of the City of Ontario Development Code; (d) applicable master plans and design guidelines of the City; and (e) applicable Standard Drawings of the City.

SECTION 6: Planning Commission Action. Based upon the findings and conclusions set forth in the Sections above, the Planning Commission hereby APPROVES the herein described Application, subject to each and every condition set forth in the Department reports attached hereto as "Attachment A," and incorporated herein by this reference.

SECTION 7: Indemnification. The Applicant shall agree to defend, indemnify and hold harmless, the City of Ontario or its agents, officers, and employees from any claim, action or proceeding against the City of Ontario or its agents, officers or employees to attack, set aside, void, or annul this approval. The City of Ontario shall promptly notify the Applicant of any such claim, action, or proceeding, and the City of Ontario shall cooperate fully in the defense.

SECTION 8: 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 East B Street, Ontario, California 91764. The custodian for these records is the City Clerk of the City of Ontario.

SECTION 9: Certification to Adoption. The Secretary shall certify to the adoption of the Resolution.
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ATTACHMENT A:

File No. PMTT24-008 (TTM 20730)
Departmental Conditions of Approval
(Departmental conditions of approval to follow this page) 2156

303 East B Street, Ontario, California 91764 Phone: 909.395.2036 / Fax: 909.395.2420

LAND DEVELOPMENT DIVISION

CONDITIONS OF APPROVAL
Date Prepared: 9/1/2025
File No: PMTT24-008 (TTM 20730)
Related Files: PDEV24-017
Project Description: A Tentative Tract Map to subdivide approximately 10.02 acres of land into 28 numbered lots for 161 multiple-family units and 15 lettered lots for private streets, landscape edges, and common open space, located south of Chatham Street, west of Clifton Avenue, east of Amherst Avenue, and north of Eucalyptus Avenue, within Planning Area 11 (RD-7 / Row Townhomes) of the Esperanza Specific Plan; (APN: 1073- 101-050).; submitted by GDC Investments 13.

Prepared By: Robert Morales, Associate Planner
Phone: 909.395.2432 (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:

2.1 Time Limits.
(a) Tentative Tract Map approval shall become null and void 2 years following the effective date of application approval, unless the final parcel/tract map has been recorded, or a time extension has been approved by the Planning Commission pursuant to Development Code Section 2.02.025 (Time Limits and Extensions). This Permit does not supersede any individual time limits specified herein for performance of specific conditions or improvements. (b) Development Plan approval shall become null and void 2 years following the effective date of application approval, unless a building permit is issued and construction is commenced, and diligently pursued toward completion, or a time extension has been approved by the Planning Director. This condition does not supersede any individual time limits specified herein, or any other departmental conditions of approval applicable to the Project, for the performance of specific conditions or improvements.
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2.2 Subdivision Map.
(a) The Final Tract Map shall be in conformance with the approved Tentative Tract/Parcel Map on file with the City. Variations from the approved Tentative Tract/Parcel Map may be reviewed and approved by the Planning Department. A substantial variation from the approved Tentative Tract/Parcel Map may require review and approval by the Planning Commission, as determined by the Planning Director.
(b) Tentative Tract Map approval shall be subject to all conditions, requirements and recommendations from all other departments/agencies provided on the attached reports/memorandums.
(c) The subject Tentative Tract Map for condominium purposes shall require the recordation of a condominium plan concurrent with the recordation of the Final Tract/Parcel Map and CC&Rs.
(d) Pursuant to California Government Section 66474.9, the subdivider agrees that it will defend, indemnify, and hold harmless the City of Ontario or its agents, officers and employees from any claim, action or proceeding against the City of Ontario or its agents, officers or employees to attack, set aside, void or annul any approval of the City of Ontario, whether by its City Council, Planning Commission or other authorized board or officer of this subdivision, which action is brought within the time period provided for in Government Code Section 66499.37. The City of Ontario shall promptly notify the subdivider of any such claim, action or proceeding and the City of Ontario shall cooperate fully in the defense.

2.3 General Requirements. The Project shall comply with the following general requirements:
(a) All construction documentation shall be coordinated for consistency, including, but not limited to, architectural, structural, mechanical, electrical, plumbing, landscape and irrigation, grading, utility and street improvement plans. All such plans shall be consistent with the approved entitlement plans on file with the Planning Department. (b) The project site shall be developed in conformance with the approved plans on file with the City. Any variation from the approved plans must be reviewed and approved by the Planning Department prior to building permit issuance. (c) The herein-listed conditions of approval from all City departments shall be included in the construction plan set for the project, which shall be maintained on site during project construction.

2.4 Landscaping.
(a) The Project shall provide and continuously maintain landscaping and irrigation systems in compliance with the provisions of Ontario Development Code Division 6.05 (Landscaping).
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(b) Comply with the conditions of approval of the Planning Department, Landscape Planning Division.
(c) Landscaping shall not be installed until the Landscape and Irrigation Construction Documentation Plans required by Ontario Development Code Division 6.05 (Landscaping) have been approved by the Landscape Planning Division. (d) Changes to approved Landscape and Irrigation Construction Documentation Plans, which affect the character or quantity of the plant material or irrigation system design, shall be resubmitted for approval of the revision by the Landscape Planning Division, prior to the commencement of the changes.

2.5 Walls and Fences. All Project walls and fences shall comply with the requirements of Ontario Development Code Division 6.02 (Walls, Fences and Obstructions).

2.6 Parking, Circulation and Access.
(a) The Project shall comply with the applicable off-street parking, loading and lighting requirements of the Esperanza Specific Plan.
(b) All drive approaches shall be provided with an enhanced pavement treatment. The enhanced paving shall extend from the back of the approach apron, into the site, to the first intersecting drive aisle or parking space. s
(c) Areas provided to meet the City’s parking requirements, including off-street parking and loading spaces, access drives, and maneuvering areas, shall not be used for the outdoor storage of materials and equipment, nor shall it be used for any other purpose than parking.
(d) The required number of off-street parking spaces and/or loading spaces shall be provided at the time of site and/or building occupancy. All parking and loading spaces shall be maintained in good condition for the duration of the building or use. (e) Parking spaces specifically designated and conveniently located for use by the physically disabled shall be provided pursuant to current accessibility regulations contained in State law (CCR Title 24, Part 2, Chapters 2B71, and CVC Section 22507.8). (f) Bicycle parking facilities, including bicycle racks, lockers, and other secure facilities, shall be provided in conjunction with development projects pursuant to current regulations contained in CALGreen (CAC Title 24, Part 11). The final design and placement of bicycle parking facilities shall be subject to Planning Department review and approval. (g) All off-street parking facilities shall be provided with nighttime security lighting pursuant to Ontario Municipal Code Section 4-11.08 (Special Residential Building Provisions) and Section 4-11.09 (Special Commercial/Industrial Building Provisions), designed to confine emitted light to the parking areas. Parking facilities shall be lit from sunset until sunrise, daily, and shall be operated by a photocell switch.
(h) Unless intended as part of a master lighting program, no operation, activity, or lighting fixture shall create illumination on any adjacent property. 2159
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2.7 Mechanical and Rooftop Equipment.
(a) All exterior roof-mounted mechanical, heating and air conditioning equipment, and all appurtenances thereto, shall be completely screened from public view by parapet walls or roof screens that are architecturally treated so as to be consistent with the building architecture.
(b) All ground-mounted utility equipment and structures, such as tanks, transformers, HVAC equipment, and backflow prevention devices, shall be located out of view from a public street, or adequately screened through the use of landscaping and/or decorative low garden walls.

2.8 Security Standards. The Project shall comply with all applicable requirements of Ontario Municipal Code Title 4 (Public Safety), Chapter 11 (Security Standards for Buildings).

2.9 Signs.
(a) All Project signage shall comply with the requirements of Ontario Development Code Division 8.1 (Sign Regulations).

2.10 Sound Attenuation. The Project shall be constructed and operated in a manner so as not to exceed the maximum interior and exterior noise levels set forth in Ontario Municipal Code Title 5 (Public Welfare, Morals, and Conduct), Chapter 29 (Noise).

2.11 Covenants, Conditions and Restrictions (CC&Rs)/Mutual Access and Maintenance Agreements.
(a) CC&Rs shall be prepared for the Project and shall be recorded prior to the issuance of a building permit.
(b) The CC&Rs shall be in a form and contain provisions satisfactory to the City.

The articles of incorporation for the property owner’s association and the CC&Rs shall be reviewed and approved by the City.
(c) CC&Rs shall ensure reciprocal parking and access between parcels. (d) CC&Rs shall ensure reciprocal parking and access between parcels, and common maintenance of:
(i) Landscaping and irrigation systems within common areas; (ii) Landscaping and irrigation systems within parkways adjacent to the project site, including that portion of any public highway right-of-way between the property line or right-of-way boundary line and the curb line and also the area enclosed within the curb lines of a median divider (Ontario Municipal Code Section 7-3.03), pursuant to Ontario Municipal Code Section 5-22-02;
(iii) Shared parking facilities and access drives; and
(iv) Utility and drainage easements.
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(e) CC&Rs shall include authorization for the City’s local law enforcement officers to enforce City and State traffic and penal codes within the project area. (f) The CC&Rs shall grant the City of Ontario the right to enforce the CC&R provisions.
(g) A specific methodology/procedure shall be established within the CC&Rs for enforcement of its provisions by the City of Ontario, if adequate maintenance of the development does not occur, such as, but not limited to, provisions that would grant the City the right of access to correct maintenance issues and assess the property owner’s association for all costs incurred.

2.12 Disclosure Statements.
(a) A copy of the Public Report from the Department of Real Estate, prepared for the subdivision pursuant to Business and Professions Code Section 11000 et seq., shall be provided to each prospective buyer of the residential units and shall include a statement to the effect that:
(i) This tract is subject to noise from the Ontario International Airport and may be more severely impacted in the future.
(ii) Some of the property adjacent to this tract is zoned for agricultural uses and there could be fly, odor, or related problems due to the proximity of animals. (iii) The area south of Riverside Drive lies within the San Bernardino County Agricultural Preserve. Dairies currently existing in that area are likely to remain for the foreseeable future.
(iv) This tract is part of a Landscape Maintenance District. The homeowner(s) will be assessed through their property taxes for the continuing maintenance of the district.

2.13 Environmental Requirements.
(a) If human remains are found during project
grading/excavation/construction activities, the area shall not be disturbed until any required investigation is completed by the County Coroner and Native American consultation has been completed (if deemed applicable).
(b) If any archeological or paleontological resources are found during project grading/excavation/construction, the area shall not be disturbed until the significance of the resource is determined. If determined to be significant, the resource shall be recovered by a qualified archeologist or paleontologist consistent with current standards and guidelines, or other appropriate measures implemented.

2.14 Indemnification. The applicant shall agree to defend, indemnify and hold harmless, the City of Ontario or its agents, officers, and employees from any claim, action or proceeding against the City of Ontario or its agents, officers or employees to attack, set aside, void or annul any approval of the City of Ontario, whether by its City Council, Planning Commission or other authorized board or officer. The City of Ontario shall promptly notify the applicant of any such claim, action or proceeding, and the City of Ontario shall cooperate fully in the defense. 2161
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2.15 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. (b) After the Project’s entitlement approval, and prior to issuance of final building permits, the Planning Department’s Plan Check and Inspection fees shall be paid at the rate established by resolution of the City Council.

2.16 Related Applications. PMTT24-008 approval shall not be final and complete until such time that related File Nos. PGPA24-003, PSPA24-004, have been approved by the City Council and PDEV24-017 has been approved by the Planning Commission.

2.17 Final Occupancy. The Project Architect of record will certify that construction of each building site and the exterior elevations of each structure shall be completed in compliance with the approved plans. Any deviation to approved plans shall require a resubmittal to the Planning Department for review and approval prior to construction. The Occupancy Release Request Form/Architect Certificate of Compliance shall be provided prior to final occupancy.

After the receipt of this Certification, the Planning Department will conduct a final site and exterior elevations inspection. The Owner’s Representative and Contractor shall be present.

2.18 Additional Requirements.
(a) All applicable conditions of approval of Development Agreement (File No.

PDA25-003) shall apply to this tract.
(b) The project is contingent on the City Council approval of File Nos. PGPA24- 003 & PSPA24-004.
(c) All parks shall be constructed prior to the final occupancy of the 80th unit. 2162
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CITY OF ONTARIO

LANDSCAPE PLANNING DIVISION
303 East “B” Street, Ontario, CA 91764

CONDITIONS OF APPROVAL
Sign Off
02/19/2025
Jamie Richardson, Sr. Landscape Architect Date
Reviewer’s Name:

Jamie Richardson, Sr. Landscape Architect
Phone:
(909) 395-2615
D.A.B. File No.:

PDEV24-017, PMTT24-008, PSPA24-004 & PGPA24-003
Case Planner:

Robert Morales
Project Name and Location:

Esperanza PA-11
South of Chatham, West of Clifton Street, East of Amherst Ave, North of Eucalyptus Applicant/Representative:

Bassenian | Lagoni
2031 Orchard Drive, Suite 100
Newport Beach, CA 92660
Preliminary Plans (dated 01/28/2025) meet the Standard Conditions for New Development and have been approved considering that the following conditions below be met upon submittal of the landscape construction documents.

Preliminary Plans (dated) have not been approved. Corrections noted below are required before Preliminary Landscape Plan approval.

A RESPONSE SHEET IS REQUIRED WITH RESUBMITTAL OR PLANS WILL BE RETURNED AS INCOMPLETE.

DIGITAL SUBMITTALS MUST BE 10MB OR LESS.

Development Plan and Tract Map
Civil/ Site Plans

1. Sheet C-1.1 Section D-D: Show an 8’ decomposed granite multipurpose trail.

2. Before permit issuance, stormwater infiltration devices located in landscape areas shall be reviewed and plans approved by the Landscape Planning Division. Any stormwater devices in parkway areas shall not displace street trees.

3. Show and dimension transformers set back 5’ from paving all sides. Coordinate with landscape plans.

4. Show and dimension backflow devices set back 4’ from paving on all sides. Locate on level grade. Relocate away from corners.

5. Locate utilities including light standards, fire hydrants, water, drain, and sewer lines to not conflict with required tree locations—coordinate civil plans with landscape plans.

6. Provide a utility clear space 8’ wide in parkways and 30’ apart for street trees. Move water meters, drain lines, and light standards to the utility minimum spacing and show utility lines at the edges of the parkway, toward the driveway apron, to allow space for street trees.

7. Finished grade shall be no more/no less than 8” from the stucco/plaster face of the wall.

8. Dimension, show and call out for step-outs at parking spaces adjacent to planters; a 12” wide monolithic concrete curb, DG paving or pavers with edging.

9. Show parking lot island tree planters 1 for every ten parking spaces and at each row end.

10. Identify that all landscape areas shall be HOA-maintained landscape.

11. Note and show on plans: all AC units shall be located in residential side yards, opposite the main back yard access path with gate, or a second gate and solid surface path on the opposite side shall be added for access.

12. Add Note to Grading and Landscape Plans: Landscape areas where compaction has occurred due to grading activities and where trees or stormwater infiltration areas are located 2186
shall be loosened by soil fracturing. For trees, a 12’x12’x18” deep area; for stormwater infiltration, the entire area shall be loosened. Add the following information on the plans: The backhoe method of soil fracturing shall be used to break up compaction. A 4” layer of Compost is spread over the soil surface before fracturing is begun. The backhoe shall dig into the soil lifting and then drop the soil immediately back into the hole. The bucket then moves to the adjacent soil and repeats. The Compost falls into the spaces between the soil chunks created. Fracturing shall leave the soil surface quite rough with large soil clods.

These must be broken by additional tilling. Tilling in more Compost to the surface after fracturing per the soil report will help create an A horizon soil. Imported or reused Topsoil can be added on top of the fractured soil as needed for grading. The Landscape Architect shall be present during this process and provide certification of the soil fracturing. For additional reference, see Urban Tree Foundation – Planting Soil Specifications.

Landscape Plans

13. Locate light standards, fire hydrants, water, and sewer lines to not conflict with required tree locations. Coordinate civil plans with landscape plans

14. Show all utilities on the landscape plans. Coordinate so utilities are clear of tree locations.

15. Locate trees for shade on in open turf areas, parking lots/end island fingers, seating areas, and paving, screen blank walls and adjacent properties where missing, accent trees to entries and driveways. Locate trees 50% of canopy width from walls, buildings, and existing trees.

16. Show 6’ diameter of mulch only at new trees. Detail irrigation dripline outside of mulched root zone.

17. Overhead spray systems shall be designed for plant material less than the height of the spray head.

18. Show minimum on-site tree sizes per the Landscape Development standards; see the Landscape Planning website. 5% 48” box, 10% 36 box, 30% 24” box, 55% 15 gallon. Palms are not considered trees.

19. Show 25% of trees as California native (Platanus racemosa, Quercus agrifolia, Quercus wislizenii, Quercus douglasii, Cercis occidentalis, etc.) in appropriate locations.

20. Landscape construction plans shall meet the requirements of the Landscape Development Guidelines. See https://www.ontarioca.gov/Planning/Landscape

21. Provide phasing map for multi-phase projects.

22. After a project’s entitlement approval, the applicant shall pay all applicable fees for landscape plan check and inspections at a rate established by resolution of the City Council.

Specific Plan Amendment

23. Change any “New Model Colony” references to “Ontario Ranch.” Page 7.6, 7.15.1 #2. Public Maintenance.

24. Pg. 8.61 & 8.64, All Exhibits: Verify with Engineering if “Pedestrian Entry Portal Gateway” and “Pedestrian Entry Monument” will be permitted within the ROW. Page 8.63, Exhibit 42, Primary Community Entry and Monumentation – Hamner Avenue. 2187

BUILDING DEPARTMENT
303 East B Street, Civic Center, Ontario, CA 91764 Phone (909)395-2023, Fax (909)395-2180

DEVELOPMENT PLAN REVIEW (DPR) COMMENTS
Planning Case File No(s): PGPA24-003_PSPA24-004_PMTT24-008_PDEV24-017 Submittal No: 1 Case Planner: Robert Morales
Applicant:

APN(s): 1073-101-050
Location:

Project Description: An Amendment to the Land Use Element of the Policy Plan (General Plan) component of The Ontario Plan, changing the land use designation on 13.2 acres of land from PS (Public School) to MDR (Medium Density Residential), An Amendment to the Esperanza Specific Plan, changing the land use designation on

13.2 acres of land from PS (Public School) to MDR (Medium Density Residential), A Tentative Tract Map for Common Interest Subdivision purposes, to subdivide

13.2 acres of land into 28 numbered lots and 15 lettered lots, A Development Plan to construct 161 multiple-family dwellings on approximately 13.2 acres of land generally located South of Chatham Street, West of Clifton Street, East of Amherst Avenue, and North of Eucalyptus Avenue, within Planning Area 11 of the Esperanza Specific Plan (APN(s): 1073-101-050)
Reviewed By: Ganda, S. Phone: (909)395-2174
E-mail: [email protected]
Date: 10/7/2024
The following are Standard Building Department Conditions of Approval.

Items with checked boxes are applicable to this Project:

Specific Conditions:
1) -
Specific Comments:
(Note: These comments are NOT Conditions)
1) -
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BUILDING DEPARTMENT DPR COMMENTS

GENERAL CONDITIONS
☐ 1 The address for the project is:
 2 Prior to, or at the time of plan check submittal, provide a site plan showing all buildings and the addresses assigned to them as stipulated in (1) above, and a list of these buildings and their assigned addresses on 8-1/2” x 11” paper.
 3 Structures must be designed for 110-mph wind exposure C (per City Ordinance).  4 Shall comply with the latest adopted edition of the following codes as applicable: 1 A. California Building Code
B. California Residential Code
C. California Existing Building Code
D. California Electrical Code
E. California Mechanical Code
F. California Plumbing Code
G. California Energy Code.

H. California Fire Code
I. California Green Building Standards Code.
 5 The property owner/business operator shall comply with all applicable City of Ontario Municipal Codes and Ordinances.
☐ 6 The requirements of the Department of Environmental Health Services and the Air Quality Management District shall be satisfied prior to the issuance of any permit if hazardous materials are stored and/or used.
 7 Pursuant to the California Business and Professions Code Section 6737, most projects are required to be designed by a California Licensed Architect or Engineer. The project owner or developer should review the section of the California Codes and comply with the regulation.  8 All perimeter/boundary walls/fences shall be designed and constructed so that the outer/exterior face of the wall/fence is as close as possible to the lot line. In any case, the outer/exterior face of the wall shall be within two (2) inches of the lot line. Distances greater than two (2) inches may be approved prior to construction by the Building Official on a case-by-case basis for extenuating circumstances.
☐ 9 All lot lines, easement lines, etc. shall be located and/or relocated in such a manner as to not cause any existing structure to become nonconforming with the requirements of the latest adopted edition of the Building Code, or any other applicable law, ordinance, or code. 10 Non-buildable easement(s) needed for this project. Show on plans and provide easement(s) prior to building permits.
 11 The Developer/Owner is responsible for the coordination of the final occupancy. The Developer/Owner shall obtain clearances from each reviewing department and division prior to requesting a final building inspection from the Building Department. Each reviewing department shall sign off in the Building Department permit software. ☐ 12 All signs shall be Underwriters Laboratories, or equal, approved. ☐ 13 Permits are required prior to the removal and/or demolition of structures. ☐ 14 In addition to approval from Building Department, approval is required from the County of San Bernardino, Department of Public Health and the California Regional Water Quality Control Board, Santa Ana Region for the Private Sewage Disposal System. ☐ 15 The existing private sewage system will have to be modified as required to accommodate the new use. Plans and/or supporting data will have to be submitted to, and approved by, the Building Department regarding the new use and necessary modifications. Additionally, approval from the Regional Water Quality Control Board, Santa Ana Region, is required for the new use. ☐ 16 The coach shall bear a State of California, Department of Housing and Community Development (HCD) insignia indicating the occupancy group and design loads that the coach conforms to, and other relevant information regarding exiting, fire safety, electrical, plumbing and mechanical. The foundation system, porch and awning shall comply with plans that bear the HCD “Standard Plan 2189
PGPA24-003_PSPA24-004_PMTT24-008_PDEV24-017 - DPR COMMENTS

BUILDING DEPARTMENT DPR COMMENTS
Approval” stamp. The coach, foundation system, porch and awning shall comply with the City of Ontario’s design loads and site-specific conditions.
☐ 17 The conversion of the existing single-family dwelling(s) into a commercial use changes the occupancy group classification, and therefore the existing buildings must be made to comply with the requirements of all applicable codes for the new occupancy classification. Complete plans, calculations and other specifications shall be submitted to the Building Department for review, approval and subsequent permit issuance. The plans, calculations and other specifications shall be prepared by an Architect or Registered Civil/Structural Engineer licensed by the State of California who is qualified to perform said wo
☐ 18 The site, or a portion of the site, is in a flood hazard area. Justification that the proposed development does not adversely affect the location or carrying capacity of the floodway, nor does it adversely affect upstream or downstream sites shall be provided to Building Department.

Additionally, all provisions must be taken to protect the site from flood damage. ☐ 19 All exterior lighting shall be orientated, directed, and/or shielded as much as possible so that direct illumination does not infringe onto adjoining properties  20 Site facilities such as parking open or covered, recreation facilities, and trash dumpster areas, and common use areas shall be accessible per the CBC, Chapter 11.  21 Trash Enclosure shall be covered, and the interior clearances shall be designed to accommodate the following:
• 4’ min. side access entrance
• 3’ min. wide clear pathway along rear of enclosure between trash bins and back wall. • Trash bins must be oriented sideways to allow access from the narrow dimension. • Use of curbs or wheel stops shall be provided within the enclosure to maintain access clearances and bin orientations.
 22 The applicant/developer shall include the conditions of approval of this resolution on the construction plans.
 23 Site development and grading shall be designed to provide access to all entrances and exterior ground floors exits and access to normal paths of travel, and where necessary to provide access. Paths of travel shall incorporate (but not limited to) exterior stairs, landings, walks and sidewalks, pedestrian ramps, curb ramps, warning curbs, detectable warning, signage, gates, lifts and walking surface materials. The accessible route(s) of travel shall be the most practical direct route between accessible building entrances, site facilities, accessible parking, public sidewalks, and the accessible entrance(s) to the site, California Building Code, (CBC) Chapter 11, Sec, 11A and 11B.
☐ 24 Commercial/Industrial gated site must have at least one pedestrian emergency gate, 3’-0’ x 6’-8” min. gate size, equipped with panel hardware on the inside, and gate must swing out. Pedestrian emergency gates can be installed integrated with vehicular gates.  25 New residential single-family dwelling (SFD’s):
• The side yard gate must swing out toward the street.
• The gas meter shall not obstruct side yard access gates. • Air Conditioning unit located at side yard shall maintain 3’ min. clearance from property line wall to AC unit.
• Provide a continuous concrete walk between garage side door to driveway or sidewalk.  26 New development projects located in the Ontario Ranch specific plan are required to submit a methane assessment report. This report shall be submitted to the Building Department for review and approval at grading plan submittal. Comply with the METHANE ASSESSMENT FOR PROJECTS IN THE ONTARIO RANCH SPECIFIC PLAN guideline. This guideline is available on the Building Department website
☐ 27 If hazardous substances are used and/or stored, a technical opinion and report, identifying and developing methods of protection from the hazards presented by the hazardous materials may be required. This report shall be prepared by a qualified person, firm, or corporation and submitted to Building Department. This report shall also explain the proposed facility's intended methods of 2190
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BUILDING DEPARTMENT DPR COMMENTS
operation and list all of the proposed materials, their quantities, classifications, and the effects of any chemical (material) intermixing in the event of an accident or spill. ☐ 28 The property owner/business operator shall provide a grease interceptor at a location where it shall be easily accessible for inspection, cleaning, and removal of accumulated grease. The sizing and installation shall conform to the current California Plumbing Code. The grease interceptor shall be constructed in accordance with plans approved by the Director of Public Works and the Building Official. The property owner/business operator shall contract with a maintenance company for maintenance and cleaning of the grease interceptor.  29 Onsite private sewer, domestic water, and storm drainage systems shall be designed in accordance with the CPC/UPC requirements, including but not limited to, the sizing of pipes. These systems must be reviewed, approved, and inspected by the Building Department. Design standards used by other departments for off-site sewer, water, and storm drainage systems shall not be used for such onsite systems.
 30 The design for public domestic water, sewer, and storm drainage on any private streets shall be reviewed and approved by the Engineering Department. Such design need not be submitted to the Building Department for approval.
☐ 31 Conditions of approvals shall be reproduced onto the plans submitted for permits.  32 Development Impact fees are due on this project at permit issuance  33 Provide accessible path of travel between buildings.  34 When submitting permit applications for new single-family dwellings master/stock plan in the New Model Colony, a table summarizing lots/tract, models, square footage, and number of plumbing fixtures, electrical, and mechanical shall be included on the plan.  35 When submitting permit applications for production homes, include two sets of site plans showing the setback from property lines and the model number/type.

SITE CONSTRUCTION REQUIREMENTS
 36 All construction sites must be protected by a security fence and screening. The fencing and screening shall always maintained to protect pedestrians  37 Temporary toilet facilities shall be provided for construction workers. The toilet facilities shall be maintained in a sanitary condition. Construction toilet facilities of the non-sewer type shall conform to ANSI ZA.3
 38 Construction projects which require temporary electrical power shall obtain an Electrical Permit from Building Department. No temporary electrical power will be granted to a project unless one of the following items is in place and approved by Building Department and the Planning Department. (A) Installation of a construction trailer, or
(B) Security fenced area where the electrical power will be located  39 Installation of construction/sales trailers must be located on private property. No trailers can be in the public street right of way.
 40 Any temporary building, trailer, commercial coach, etc. installed and/or used in connection with a construction project shall comply with City Code.
 41 Prior to issuance of a Building Permit all of the following must be in place: portable toilet with hand wash station, all BMP's, fencing and signage on each adjacent street saying "If there is any dust or debris coming from this site please contact (superintendent number here) or the AQMD if the problem is not being resolved" or something similar to this.

PRIOR TO ISSUANCE OF BUILDING/CONSTRUCTION PERMITS
 42 The following grading items shall be completed and/or submitted – as applicable – prior to the issuance of building permits for this project:

A. Precise grading plans shall be approved
B. Rough grading completed
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BUILDING DEPARTMENT DPR COMMENTS
C. Compaction certification completed
D. Pad elevation certification completed
E. Rough grade inspection signed off by a City’s Building  43 Prior to the issuance of a Building Permit, the applicant shall pay all Development Improvement Fees to the City. Copies of receipts shall be provided to the Building Department prior to permit issuance.
 44 The Tract or Parcel map shall be recorded prior to the issuance of any permits. ☐ 45 The existing parcels shall be combined into a single parcel, or a lot line adjustment shall be done so that the proposed structure(s) does not cross any lot line and complies with all requirements of the California Building Code, prior to any building permits being issued.  46 Fire sprinklers, fire alarm systems and fire hydrant plans shall be submitted for plan review concurrently with building plans and shall be approved prior to permit issuance.  47 Prior to issuance of Building Permits, school fees need to be paid to school district where project is located.

2192

CITY OF ONTARIO

MEMORANDUM
TO: Robert Morales, Associate Planner
Planning Department
FROM: Paul Ehrman, Sr. Deputy Fire Chief/Fire Marshal
Fire Department
DATE: September 19, 2024
SUBJECT: PDEV24-017 - A Development Plan to construct 161 multiple-family dwellings on approximately 13.2 acres of land generally located South of Chatham Street, West of Clifton Street, East of Amherst Avenue, and North of Eucalyptus Avenue, within Planning Area 11 of the Esperanza Specific Plan (APN(s): 1073-101-050). Related File(s): PGPA24-003, PSPA24-004, PMTT24-008.

The plan does adequately address Fire Department requirements at this time.

Standard Conditions of Approval apply, as stated below.

SITE AND BUILDING FEATURES:

A. 2022 CBC Type of Construction: Type V-B
B. Type of Roof Materials: Ordinary
C. Ground Floor Area(s): Varies
D. Number of Stories: 2 + 3
E. Total Square Footage: Varies, Approx. 1,600 Sq. Ft.

F. 2022 CBC Occupancy Classification(s): R3
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CONDITIONS OF APPROVAL:

1.0 GENERAL

1.1 The following are the Ontario Fire Department (“Fire Department”) requirements for this development project, based on the current edition of the California Fire Code (CFC), and the current versions of the Fire Prevention Standards (“Standards.”) It is recommended that the applicant or developer transmit a copy of these requirements to the on-site contractor(s) and that all questions or concerns be directed to the Bureau of Fire Prevention, at (909) 395-2029.

For copies of Ontario Fire Department Standards please access the City of Ontario web site at www.ontarioca.gov/Fire/Prevention.

1.2 These Fire Department conditions of approval are to be included on any and all construction drawings.

2.0 FIRE DEPARTMENT ACCESS

2.1 Fire Department vehicle access roadways shall be provided to within one hundred and fifty feet (150’) of all portions of the exterior walls of the first story of any building, unless specifically approved. Roadways shall be paved with an all-weather surface and shall be a minimum of twenty-four (24) ft. wide. See Standard #B-004.

2.2 In order to allow for adequate turning radius for emergency fire apparatus, all turns shall be designed to meet the minimum twenty-five feet (25’) inside and forty-five feet (45’) outside turning radius per Standard #B-005.

2.3 Fire Department access roadways that exceed one hundred and fifty feet (150’) in length shall have an approved turn-around per Standard #B-002.

2.4 Access drive aisles which cross property lines shall be provided with CC&Rs, access easements, or reciprocating agreements, and shall be recorded on the titles of affected properties, and copies of same shall be provided at the time of building plan check.

2.5 "No Parking-Fire Lane" signs and /or red painted curbs with lettering are required to be installed in interior access roadways, in locations where vehicle parking would obstruct the minimum clear width requirement. Installation shall be per Standard #B-001.

2.6 Security gates or other barriers on fire access roadways shall be provided with a Knox brand key switch or padlock to allow Fire Department access. See Standards #B-003, B-004 and H001.

2.7 Any time PRIOR to on-site combustible construction and/or storage, a minimum twenty-four feet (24’) wide circulating all weather access roads shall be provided to within one hundred and fifty feet (150’) of all portions of the exterior walls of the first story of any building, unless specifically approved by fire department and other emergency services. 2194
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3.0 WATER SUPPLY

3.1 The required fire flow per Fire Department standards, based on the 2019 California Fire Code, Appendix B, is 1500 gallons per minute (g.p.m.) for 2 hours at a minimum of 20 pounds per square inch (p.s.i.) residual operating pressure.

3.2 Off-site (public) fire hydrants are required to be installed on all frontage streets, at a maximum spacing of three hundred feet (300’) apart, on alternating sides of the street. Streets with a center median shall require public hydrants spaced five hundred feet (500’) apart, on the same side of the street.

3.4 The water supply, including water mains and fire hydrants, shall be tested and approved by the Engineering Department and Fire Department prior to combustible construction to assure availability and reliability for firefighting purposes.

4.0 FIRE PROTECTION SYSTEMS

4.1 On-site private fire hydrants are required per Standard #D-005, and identified in accordance with Standard #D-002. Installation and locations(s) are subject to the approval of the Fire Department. An application with detailed plans shall be submitted, and a construction permit shall be issued by the Fire Department, prior to any work being done.

4.2 Underground fire mains which cross property lines shall be provided with CC & R, easements, or reciprocating agreements, and shall be recorded on the titles of affected properties, and copies of same shall be provided at the time of fire department plan check. The shared use of private fire mains or fire pumps is allowable only between immediately adjacent properties and shall not cross any public street.

4.3 An automatic fire sprinkler system is required. The system design shall be in accordance with National Fire Protection Association (NFPA) Standard 13. All new fire sprinkler systems, except those in single family dwellings, which contain twenty (20) sprinkler heads or more shall be monitored by an approved listed supervising station. An application along with detailed plans shall be submitted, and a construction permit shall be issued by the Fire Department, prior to any work being done.

4.4 Wood frame buildings that are to be sprinkled shall have these systems in service (but not necessarily finaled) before the building is enclosed.

4.7 Portable fire extinguishers are required to be installed prior to occupancy per Standard #C-001.

Please contact the Fire Prevention Bureau to determine the exact number, type and placement required.

5.0 BUILDING CONSTRUCTION FEATURES

5.1 The developer/general contractor is to be responsible for reasonable periodic cleanup of the development during construction to avoid hazardous accumulations of combustible trash and debris both on and off the site.
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5.2 Approved numbers or addresses shall be placed on all new and existing buildings in such a position as to be plainly visible and legible from the street or road fronting the property. Multitenant or building projects shall have addresses and/or suite numbers provided on the rear of the building. Address numbers shall contrast with their background. See Section 9-1 6.06 of the Ontario Municipal Code and Standards #H-003 and #H-002.

5.3 Single station smoke alarms and carbon monoxide alarms are required to be installed per the California Building Code and the California Fire Code.

5.4 Multiple unit building complexes shall have building directories provided at the main entrances. The directories shall be designed to the requirements of the Fire Department, see Section 9-1 6.06 of the Ontario Municipal Code and Standard #H-003.

5.5 All residential chimneys shall be equipped with an approved spark arrester meeting the requirements of the California Building Code.

5.6 Knox ® brand key-box(es) shall be installed in location(s) acceptable to the Fire Department.

All Knox boxes shall be monitored for tamper by the building fire alarm system. See Standard #H-001 for specific requirements.
2196

CITY OF ONTARIO

MEMORANDUM
FROM: Heather Lugo, MA, Police Department
DATE: September 9, 2025
SUBJECT: PDEV24-017 - A Development Plan to construct 161 multiple-family dwellings on approximately 13.2 acres of land generally located South of Chatham Street, West of Clifton Street, East of Amherst Avenue, and North of Eucalyptus Avenue, within Planning Area 11 of the Esperanza Specific Plan (APN(s): 1073-101-050). Related File(s): PGPA24-003, PSPA24-004, PMTT24-008.

The “Standard Conditions of Approval” contained in Resolution No. 2017-027 apply. The applicant shall read and be thoroughly familiar with these conditions, including, but not limited to, the requirements below. • Required lighting for all walkways, driveways, doorways, parking lots, hallways and other areas used by the public shall be provided. Lights shall operate via photosensor. Planned landscaping shall not obstruct lighting.
• The Applicant shall comply with construction site security requirements as stated in the Standard Conditions.
• All exterior electrical outlets in common areas shall be secured and locked (if accessible to the public).
• All exterior water spigots / water supply sources in common areas shall be secured and locked (if accessible to the public).
• Trash enclosure (if applicable) shall be fully secured/enclosed by locks, mesh, and screen grate to reduce crime and encampment opportunities for homeless persons.

The Applicant is invited to contact Heather Lugo at (909) 408-1074 with any questions or concerns regarding these conditions.
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RESOLUTION NO. PC25-051

A RESOLUTION OF THE PLANNING COMMISSION OF THE CITY OF
ONTARIO, CALIFORNIA, APPROVING FILE NO. PDEV24-017, A
DEVELOPMENT PLAN TO CONSTRUCT 161 CONDOMINIUM UNITS,
ON APPROXIMATELY 10.02 ACRES OF LAND LOCATED SOUTH OF

CHATHAM STREET, WEST OF CLIFTON AVENUE, EAST OF AMHERST

AVENUE, AND NORTH OF EUCALYPTUS AVENUE, WITHIN PLANNING AREA 11 (RD-7 / ROW TOWNHOMES) OF THE ESPERANZA SPECIFIC PLAN, AND MAKING FINDINGS IN SUPPORT THEREOF—APN: 1073- 101-050
WHEREAS, GDC Investments 13, LP (Applicant) filed an Application for the approval of a Development Plan, File No. PDEV24-017, as described in the title of this Decision (hereinafter referred to as Application" or "Project); and WHEREAS, the Application applies to approximately 10.02 acres of land generally located south of Chatham Street, west of Clifton Avenue, east of Amherst Avenue, and north of Eucalyptus Avenue, within Planning Area 11 (RD-7 / Row Townhomes) of the Esperanza Specific Plan, identified as Assessor’s Parcel Number 1073-101-050, and presently vacant; and
WHEREAS, the property to the north of the Project site is within the Esperanza Specific Plan, designated Park, and developed with residential uses; the property to the east is within the Esperanza Specific Plan, designated PA-4 (RD-6 / 6-Pack Courtyard), and developed with residential uses; the property to the south is within the Esperanza Specific Plan, designated PA-7 (RD-1 / SFD 50’ wide lots), and developed with residential uses; and the property to the west is within the Esperanza Specific Plan, designated PA10 (RD-3 / SFD 2-Pack), and developed with residential uses; and WHEREAS, the Project includes private streets, a recreation area with a pool, common open space, private open space, and landscaping improvements, all consistent with the requirements of the Esperanza Specific Plan; and WHEREAS, the Project provides a total of 433 vehicle parking spaces, exceeding the 414 spaces required by the Esperanza Specific Plan, through a combination of garage, driveway, uncovered, and parallel spaces; and
WHEREAS, the Project incorporates 2 Transitional architectural styles, Farmhouse and Spanish, applied across the 2- and 3-story buildings, consistent with the architectural standards and objectives of the Esperanza Specific Plan; and WHEREAS, the Development Plan is consistent with the density, development standards, and design guidelines of the Esperanza Specific Plan; and 2198
Planning Commission Resolution
File No. PDEV24-017
September 23, 2025

WHEREAS, The Ontario Plan (TOP) 2050 Supplemental Environmental Impact Report (SEIR)(SCH No. 2021070364, certified by the City Council on August 16, 2022 (hereinafter referred to as Certified SEIR), in which development and use of the Project site was discussed; and
WHEREAS, the Planning Director of the City of Ontario prepared and approved for attachment to the certified Environmental Impact Report, an Addendum to the Certified SEIR (hereinafter referred to as SEIR Addendum) 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 environmental impacts of this Project were thoroughly analyzed in the SEIR Addendum, which concluded that implementation of the Project could result in a number of significant effects on the environment that were previously analyzed in the Certified SEIR, and that the Certified SEIR identified mitigation measures that would reduce each of those significant effects to a less-than-significant level; and WHEREAS, the City's "Local Guidelines for Implementing the California Environmental Quality Act (CEQA)" provide for the use of a single environmental assessment in situations where the impacts of subsequent projects are adequately analyzed; and
WHEREAS, the Application is a project pursuant to the California Environmental Quality Act — Public Resources Code Section 21000, et seq. — (hereinafter referred to as CEQA) and an SEIR Addendum has been prepared to determine possible environmental impacts; and
WHEREAS, Ontario Development Code Table 2.02-1 (Review Matrix) grants the Planning Commission the responsibility and authority to review and act on the subject Application; and
WHEREAS, the Project has been reviewed for consistency with the Housing Element of the Policy Plan component of TOP 2050, as State Housing Element law (as prescribed in Government Code Sections 65580 through 65589.8) requires that development projects must be consistent with the Housing Element, if upon consideration of all its aspects, it is found to further the purposes, principals, goals, and policies of the Housing Element; and
WHEREAS, the Project is located within the Airport Influence Area of Ontario International Airport, which encompasses lands within parts of San Bernardino, Riverside, and Los Angeles Counties, and is subject to, and must be consistent with, the policies and criteria set forth in the Ontario International Airport Land Use Compatibility Plan 2199
Planning Commission Resolution
File No. PDEV24-017
September 23, 2025

(hereinafter referred to as ALUCP), which applies only to jurisdictions within San Bernardino County, and addresses the noise, safety, airspace protection, and overflight impacts of current and future airport activity; and
WHEREAS, City of Ontario Development Code Division 2.03 (Public Hearings) prescribes the manner in which public notification shall be provided and hearing procedures to be followed, and all such notifications and procedures have been completed; and
WHEREAS, on September 15, 2025, the Development Advisory Board of the City of Ontario conducted a hearing to consider the Addendum and the Project, and concluded said hearing on that date, voting to issue Decision Nos. DAB25-031 and DAB25-033, respectively, recommending that the Planning Commission approve the Application; and WHEREAS, as the first action on the Project, on September 23, 2025, the Planning Commission issued a Resolution adopting the SEIR Addendum, finding that the proposed Project introduces no new significant environmental impacts and applying all previously adopted mitigation measures to the Project, which were incorporated by reference; and WHEREAS, on September 23, 2025, the Planning Commission of the City of Ontario conducted a hearing to consider the Project, and concluded said hearing on that date; and
WHEREAS, all legal prerequisites to the adoption of this Resolution have occurred.

NOW, THEREFORE, IT IS HEREBY FOUND, DETERMINED, AND RESOLVED by the Planning Commission of the City of Ontario, as follows:

SECTION 1: Environmental Determination and Findings. As the decisionmaking body for the Project, the Planning Commission has reviewed and considered the information contained in the Addendum, the initial study, 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 Addendum, the initial study, and the administrative record, including all written and oral evidence presented to the Planning Commission, the Planning Commission finds as follows:
(1) The environmental impacts of the Project were reviewed in conjunction with an Addendum to TOP 2050 Supplemental Environmental Impact Report (SEIR)(State Clearinghouse No. 2021070364), certified by the Ontario City Council on August 16, 2022, in conjunction with File No. PGPA20-002;
2200
Planning Commission Resolution
File No. PDEV24-017
September 23, 2025

(2) The SEIR Addendum and administrative record have been completed in compliance with CEQA, the State CEQA Guidelines, and the City of Ontario Local CEQA Guidelines; and
(3) The City's "Local Guidelines for Implementing the California Environmental Quality Act (CEQA)" provide for the use of a single environmental assessment in situations where the impacts of subsequent projects are adequately analyzed. This Application introduces no new significant environmental impacts; and (4) All previously adopted mitigation measures shall be a condition of Project approval, as they are applicable to the Project, and are incorporated herein by this reference; and
(5) The SEIR Addendum contains a complete and accurate reporting of the environmental impacts associated with the Project, and reflects the independent judgment of the Planning Commission; and
(6) There is no substantial evidence in the administrative record supporting a fair argument that the Project may result in significant environmental impacts.

SECTION 2: Subsequent or Supplemental Environmental Review Not Required. Based on the SEIR Addendum, all related information presented to the Planning Commission, and the specific findings set forth in Section 1, above, the Planning Commission finds that the preparation of a subsequent or supplemental Certified EIR is not required for the Project, as the Project:
(1) Does not constitute substantial changes to the Certified EIR that will require major revisions to the Certified SEIR due to the involvement of new significant environmental effects or a substantial increase in the severity of previously identified significant effects; and
(2) Does not constitute substantial changes with respect to the circumstances under which the Certified SEIR was prepared, that will require major revisions to the Certified SEIR due to the involvement of new significant environmental effects or a substantial increase in the severity of the previously identified significant effects; and (3) Does not contain new information of substantial importance that was not known and could not have been known with the exercise of reasonable diligence at the time the Certified SEIR was certified/adopted, that shows any of the following:
(a) The Project will have one or more significant effects not discussed in the Certified SEIR; or
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(b) Significant effects previously examined will be substantially more severe than shown in the Certified SEIR; or
(c) Mitigation measures or alternatives previously found not to be feasible would in fact be feasible and would substantially reduce one or more significant effects of the Project, but the City declined to adopt such measures; or (d) Mitigation measures or alternatives considerably different from those analyzed in the Certified SEIR would substantially reduce one or more significant effects on the environment, but which the City declined to adopt.

SECTION 3: Housing Element Compliance. Pursuant to the requirements of California Government Code Chapter 3, Article 10.6, commencing with Section 65580, as the decision-making body for the Project, the Planning Commission finds that based upon the facts and information contained in the Application and supporting documentation, at the time of Project implementation, the Project is consistent with the Housing Element of the Policy Plan (General Plan) component of TOP 2050, as the Project site is not one of the properties in the Housing Element Sites Inventory contained in Tables B-1 and B-2 of the Housing Element Technical Report.

SECTION 4: Airport Land Use Compatibility Plan (ALUCP) Compliance.

The California State Aeronautics Act (Public Utilities Code Section 21670, et seq.) requires that an Airport Land Use Compatibility Plan be prepared for all public use airports in the State; and requires that local land use plans and individual development proposals must be consistent with the policies set forth in the adopted Airport Land Use Compatibility Plan.
(1) On April 19, 2011, the City Council of the City of Ontario approved and adopted the Ontario International Airport Land use Compatibility Plan, establishing the Airport Influence Area for Ontario International Airport, which encompasses lands within parts of San Bernardino, Riverside, and Los Angeles Counties, and limits future land uses and development within the Airport Influence Area, as they relate to noise, safety, airspace protection, and overflight impacts of current and future airport activity. As the decision-making body for the Project, the Planning Commission has reviewed and considered the facts and information contained in the Application and supporting documentation against the ONT ALUCP compatibility factors, including [1] Safety Criteria (ONT ALUCP Table 2-2) and Safety Zones (ONT ALUCP Map 2-2), [2] Noise Criteria (ONT ALUCP Table 2-3) and Noise Impact Zones (ONT ALUCP Map 2-3), [3] Airspace protection Zones (ONT ALUCP Map 2-4), and [4] Overflight Notification Zones (ONT ALUCP Map 2-5). As a result, the Planning Commission therefore finds and determines that the Project, when implemented in conjunction with the conditions of approval, will be consistent with the policies and criteria set forth within the ONT ALUCP; and 2202
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SECTION 5: Concluding Facts and Reasons. Based upon the substantial evidence presented to the Planning Commission during the above-referenced hearing, and upon the specific findings set forth in the Sections above, the Planning Commission hereby concludes as follows:
(1) The proposed development at the proposed location is consistent with the goals, policies, plans and exhibits of the Vision, Policy Plan (General Plan), and City Council Priorities components of The Ontario Plan 2050. The proposed Project is located within the Medium Density Residential land use district of the Policy Plan Land Use Map, and Planning Area 11 (RD-7 / Row Townhomes) of the Esperanza Specific Plan The development standards and conditions under which the proposed Project will be constructed and maintained is consistent with the goals, policies, plans, and exhibits of the Vision, Policy Plan (General Plan), and City Council Priorities components of TOP. (2) The proposed development is compatible with those on adjoining sites in relation to location of buildings, with particular attention to privacy, views, any physical constraint identified on the site and the characteristics of the area in which the site is located. The Project has been designed consistent with the requirements of the City of Ontario Development Code and Planning Area 11 (RD-7 / Row Townhomes) of the Esperanza Specific Plan including standards relative to the particular land use proposed residential project, as-well-as building intensity, building and parking setbacks, building height, number of off-street parking and loading spaces, onsite and off-site landscaping, and fences, walls and obstructions. (3) The proposed development will complement and/or improve upon the quality of existing development in the vicinity of the Project and the minimum safeguards necessary to protect the public health, safety and general welfare have been required of the proposed Project. The Development Advisory Board has required certain safeguards, and imposed certain conditions of approval, which have been established to ensure that: [i] the purposes of the Esperanza Specific Plan are maintained; [ii] the project will not endanger the public health, safety or general welfare; [iii] the project will not result in any significant environmental impacts; [iv] the project will be in harmony with the area in which it is located; and [v] the project will be in full conformity with the Vision, City Council Priorities and Policy Plan components of TOP, and the Esperanza Specific Plan.
(4) The proposed development is consistent with the development standards and design guidelines set forth in the Development Code, or applicable specific plan or planned unit development. The proposed Project has been reviewed for consistency with the general development standards and guidelines of the Esperanza Specific Plan that are applicable to the proposed Project, including building intensity, building and parking setbacks, building height, amount of off-street parking and loading spaces, parking lot dimensions, design and landscaping, bicycle parking, on-site 2203
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landscaping, and fences and walls, as-well-as those development standards and guidelines specifically related to the particular land use being proposed residential project.

As a result of this review, the Planning Commission has determined that the Project, when implemented in conjunction with the conditions of approval, will be consistent with the development standards and guidelines described in the Esperanza Specific Plan.

SECTION 6: Planning Commission Action. Based upon the findings and conclusions set forth in the Sections above, the Planning Commission hereby APPROVES the herein described Application, subject to each and every condition set forth in the Department reports attached hereto as "Attachment A," and incorporated herein by this reference.

SECTION 7: Indemnification. The Applicant shall agree to defend, indemnify and hold harmless, the City of Ontario or its agents, officers, and employees from any claim, action or proceeding against the City of Ontario or its agents, officers or employees to attack, set aside, void, or annul this approval. The City of Ontario shall promptly notify the Applicant of any such claim, action, or proceeding, and the City of Ontario shall cooperate fully in the defense.

SECTION 8: 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 East B Street, Ontario, California 91764. The custodian for these records is the City Clerk of the City of Ontario.

SECTION 9: Certification to Adoption. The Secretary shall certify to the adoption of the Resolution.
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Planning Commission Resolution
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ATTACHMENT A:

File No. PDEV24-017
Departmental Conditions of Approval
(Departmental conditions of approval to follow this page) 2207

303 East B Street, Ontario, California 91764 Phone: 909.395.2036 / Fax: 909.395.2420

LAND DEVELOPMENT DIVISION

CONDITIONS OF APPROVAL
Date Prepared: 9/1/2025
File No: PDEV24-017
Related Files: PMTT24-008
Project Description: A Development Plan to construct 161 condominium units, on approximately 10.02 acres of land located south of Chatham Street, west of Clifton Avenue, east of Amherst Avenue, and north of Eucalyptus Avenue, within Planning Area 11 (RD-7 / Row Townhomes) of the Esperanza Specific Plan; (APN: 1073-101-050); submitted by GDC Investments 13.

Prepared By: Robert Morales, Associate Planner
Phone: 909.395.2432 (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:

2.1 Time Limits.
(a) Development Plan approval shall become null and void 2 years following the effective date of application approval, unless a building permit is issued and construction is commenced, and diligently pursued toward completion, or a time extension has been approved by the Planning Director. This condition does not supersede any individual time limits specified herein, or any other departmental conditions of approval applicable to the Project, for the performance of specific conditions or improvements.

2.2 General Requirements. The Project shall comply with the following general requirements:
(a) All construction documentation shall be coordinated for consistency, including, but not limited to, architectural, structural, mechanical, electrical, plumbing, landscape 2208
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Conditions of Approval
File No.: PMTT24-008

and irrigation, grading, utility and street improvement plans. All such plans shall be consistent with the approved entitlement plans on file with the Planning Department. (b) The project site shall be developed in conformance with the approved plans on file with the City. Any variation from the approved plans must be reviewed and approved by the Planning Department prior to building permit issuance. (c) The herein-listed conditions of approval from all City departments shall be included in the construction plan set for the project, which shall be maintained on site during project construction.

2.3 Landscaping.
(a) The Project shall provide and continuously maintain landscaping and irrigation systems in compliance with the provisions of Ontario Development Code Division 6.05 (Landscaping).
(b) Comply with the conditions of approval of the Planning Department, Landscape Planning Division.
(c) Landscaping shall not be installed until the Landscape and Irrigation Construction Documentation Plans required by Ontario Development Code Division 6.05 (Landscaping) have been approved by the Landscape Planning Division. (d) Changes to approved Landscape and Irrigation Construction Documentation Plans, which affect the character or quantity of the plant material or irrigation system design, shall be resubmitted for approval of the revision by the Landscape Planning Division, prior to the commencement of the changes.

2.4 Walls and Fences. All Project walls and fences shall comply with the requirements of Ontario Development Code Division 6.02 (Walls, Fences and Obstructions).

2.5 Parking, Circulation and Access.
(a) The Project shall comply with the applicable off-street parking, loading and lighting requirements of the Esperanza Specific Plan.
(b) All drive approaches shall be provided with an enhanced pavement treatment. The enhanced paving shall extend from the back of the approach apron, into the site, to the first intersecting drive aisle or parking space. (c) Areas provided to meet the City’s parking requirements, including off-street parking and loading spaces, access drives, and maneuvering areas, shall not be used for the outdoor storage of materials and equipment, nor shall it be used for any other purpose than parking.
(d) The required number of off-street parking spaces and/or loading spaces shall be provided at the time of site and/or building occupancy. All parking and loading spaces shall be maintained in good condition for the duration of the building or use. 2209
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Conditions of Approval
File No.: PMTT24-008

(e) Parking spaces specifically designated and conveniently located for use by the physically disabled shall be provided pursuant to current accessibility regulations contained in State law (CCR Title 24, Part 2, Chapters 2B71, and CVC Section 22507.8). (f) Bicycle parking facilities, including bicycle racks, lockers, and other secure facilities, shall be provided in conjunction with development projects pursuant to current regulations contained in CALGreen (CAC Title 24, Part 11). The final design and placement of bicycle parking facilities shall be subject to Planning Department review and approval. (g) All off-street parking facilities shall be provided with nighttime security lighting pursuant to Ontario Municipal Code Section 4-11.08 (Special Residential Building Provisions) and Section 4-11.09 (Special Commercial/Industrial Building Provisions), designed to confine emitted light to the parking areas. Parking facilities shall be lit from sunset until sunrise, daily, and shall be operated by a photocell switch.
(h) Unless intended as part of a master lighting program, no operation, activity, or lighting fixture shall create illumination on any adjacent property.

2.6 Mechanical and Rooftop Equipment.
(a) All exterior roof-mounted mechanical, heating and air conditioning equipment, and all appurtenances thereto, shall be completely screened from public view by parapet walls or roof screens that are architecturally treated so as to be consistent with the building architecture.
(b) All ground-mounted utility equipment and structures, such as tanks, transformers, HVAC equipment, and backflow prevention devices, shall be located out of view from a public street, or adequately screened through the use of landscaping and/or decorative low garden walls.

2.7 Security Standards. The Project shall comply with all applicable requirements of Ontario Municipal Code Title 4 (Public Safety), Chapter 11 (Security Standards for Buildings).

2.8 Signs.
(a) All Project signage shall comply with the requirements of Ontario Development Code Division 8.1 (Sign Regulations).

2.9 Sound Attenuation. The Project shall be constructed and operated in a manner so as not to exceed the maximum interior and exterior noise levels set forth in Ontario Municipal Code Title 5 (Public Welfare, Morals, and Conduct), Chapter 29 (Noise).

2.10 Covenants, Conditions and Restrictions (CC&Rs)/Mutual Access and Maintenance Agreements.
(a) CC&Rs shall be prepared for the Project and shall be recorded prior to the issuance of a building permit.
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Conditions of Approval
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(b) The CC&Rs shall be in a form and contain provisions satisfactory to the City.

The articles of incorporation for the property owner’s association and the CC&Rs shall be reviewed and approved by the City.
(c) CC&Rs shall ensure reciprocal parking and access between parcels. (d) CC&Rs shall ensure reciprocal parking and access between parcels, and common maintenance of:
(i) Landscaping and irrigation systems within common areas; (ii) Landscaping and irrigation systems within parkways adjacent to the project site, including that portion of any public highway right-of-way between the property line or right-of-way boundary line and the curb line and also the area enclosed within the curb lines of a median divider (Ontario Municipal Code Section 7-3.03), pursuant to Ontario Municipal Code Section 5-22-02;
(iii) Shared parking facilities and access drives; and
(iv) Utility and drainage easements.
(e) CC&Rs shall include authorization for the City’s local law enforcement officers to enforce City and State traffic and penal codes within the project area. (f) The CC&Rs shall grant the City of Ontario the right to enforce the CC&R provisions.
(g) A specific methodology/procedure shall be established within the CC&Rs for enforcement of its provisions by the City of Ontario, if adequate maintenance of the development does not occur, such as, but not limited to, provisions that would grant the City the right of access to correct maintenance issues and assess the property owner’s association for all costs incurred.

2.11 Disclosure Statements.
(a) A copy of the Public Report from the Department of Real Estate, prepared for the subdivision pursuant to Business and Professions Code Section 11000 et seq., shall be provided to each prospective buyer of the residential units and shall include a statement to the effect that:
(i) This tract is subject to noise from the Ontario International Airport and may be more severely impacted in the future.
(ii) Some of the property adjacent to this tract is zoned for agricultural uses and there could be fly, odor, or related problems due to the proximity of animals. (iii) The area south of Riverside Drive lies within the San Bernardino County Agricultural Preserve. Dairies currently existing in that area are likely to remain for the foreseeable future.
(iv) This tract is part of a Landscape Maintenance District. The homeowner(s) will be assessed through their property taxes for the continuing maintenance of the district.

2.12 Environmental Requirements.
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Conditions of Approval
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(a) If human remains are found during project
grading/excavation/construction activities, the area shall not be disturbed until any required investigation is completed by the County Coroner and Native American consultation has been completed (if deemed applicable).
(b) If any archeological or paleontological resources are found during project grading/excavation/construction, the area shall not be disturbed until the significance of the resource is determined. If determined to be significant, the resource shall be recovered by a qualified archeologist or paleontologist consistent with current standards and guidelines, or other appropriate measures implemented.

2.13 Indemnification. The applicant shall agree to defend, indemnify and hold harmless, the City of Ontario or its agents, officers, and employees from any claim, action or proceeding against the City of Ontario or its agents, officers or employees to attack, set aside, void or annul any approval of the City of Ontario, whether by its City Council, Planning Commission or other authorized board or officer. The City of Ontario shall promptly notify the applicant of any such claim, action or proceeding, and the City of Ontario shall cooperate fully in the defense.

2.14 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. (b) Within 5 days following final application approval, the Notice of Exemption (“NOE”) 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”).

The filing of a NOE is voluntary; however, 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.
(c) After the Project’s entitlement approval, and prior to issuance of final building permits, the Planning Department’s Plan Check and Inspection fees shall be paid at the rate established by resolution of the City Council.

2.15 Related Applications. PDEV24-017 approval shall not be final and complete until such time that related File Nos. PGPA24-003, PSPA24-004, have been approved by the City Council and PMTT24-008 has been approved by the Planning Commission.

2.16 Final Occupancy. The Project Architect of record will certify that construction of each building site and the exterior elevations of each structure shall be completed in compliance with the approved plans. Any deviation to approved plans shall require a resubmittal to the Planning Department for review and approval prior to construction. The Occupancy Release Request Form/Architect Certificate of Compliance shall be provided prior to final occupancy. 2212
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Conditions of Approval
File No.: PMTT24-008

After the receipt of this Certification, the Planning Department will conduct a final site and exterior elevations inspection. The Owner’s Representative and Contractor shall be present.

2.17 Additional Requirements.
(a) Prior to final inspection, the applicant shall demonstrate that all exterior materials and colors are consistent with the approved architectural elevations, to the satisfaction of the Planning Department.
(i) A physical material sample board showing all proposed exterior finishes (including stucco texture, stone/brick veneers, roof materials, trim, railing, and paint colors) shall be submitted and approved prior to issuance of building permits. (b) Exterior downspouts shall be located at inside corners of two walls. Roof and balcony drains shall be placed in locations minimally visible from public view and installed to prevent wall stains.
(c) Exterior vents for mechanical systems, including but not limited to water heaters, dryers, kitchen and bathroom exhaust fans, and HVAC equipment, shall not be located on street-facing elevations or primary building facades. (i) Air conditioning condensers shall not be visible from public rights-ofway or primary pedestrian paths. Condensers shall be fully screened from view using a combination of landscaping, fencing, or decorative garden walls integrated into the site design. (d) Transitions between stucco and siding materials shall include a decorative cap, sill, or trim detail that projects from the building face to provide a defined separation. (e) Final design and placement of interior perimeter walls shall be reviewed and approved by the Planning Department during plan check review. (f) At all key architectural openings, including but not limited to arched entryways and recessed portals, stucco finishes shall be hand-troweled to achieve a smooth plaster surface. All other stucco applications shall utilize a 20/30 sand finish or finer. 2213
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CITY OF ONTARIO

LANDSCAPE PLANNING DIVISION
303 East “B” Street, Ontario, CA 91764

CONDITIONS OF APPROVAL
Sign Off
02/19/2025
Jamie Richardson, Sr. Landscape Architect Date
Reviewer’s Name:

Jamie Richardson, Sr. Landscape Architect
Phone:
(909) 395-2615
D.A.B. File No.:

PDEV24-017, PMTT24-008, PSPA24-004 & PGPA24-003
Case Planner:

Robert Morales
Project Name and Location:

Esperanza PA-11
South of Chatham, West of Clifton Street, East of Amherst Ave, North of Eucalyptus Applicant/Representative:

Bassenian | Lagoni
2031 Orchard Drive, Suite 100
Newport Beach, CA 92660
Preliminary Plans (dated 01/28/2025) meet the Standard Conditions for New Development and have been approved considering that the following conditions below be met upon submittal of the landscape construction documents.

Preliminary Plans (dated) have not been approved. Corrections noted below are required before Preliminary Landscape Plan approval.

A RESPONSE SHEET IS REQUIRED WITH RESUBMITTAL OR PLANS WILL BE RETURNED AS INCOMPLETE.

DIGITAL SUBMITTALS MUST BE 10MB OR LESS.

Development Plan and Tract Map
Civil/ Site Plans

1. Sheet C-1.1 Section D-D: Show an 8’ decomposed granite multipurpose trail.

2. Before permit issuance, stormwater infiltration devices located in landscape areas shall be reviewed and plans approved by the Landscape Planning Division. Any stormwater devices in parkway areas shall not displace street trees.

3. Show and dimension transformers set back 5’ from paving all sides. Coordinate with landscape plans.

4. Show and dimension backflow devices set back 4’ from paving on all sides. Locate on level grade. Relocate away from corners.

5. Locate utilities including light standards, fire hydrants, water, drain, and sewer lines to not conflict with required tree locations—coordinate civil plans with landscape plans.

6. Provide a utility clear space 8’ wide in parkways and 30’ apart for street trees. Move water meters, drain lines, and light standards to the utility minimum spacing and show utility lines at the edges of the parkway, toward the driveway apron, to allow space for street trees.

7. Finished grade shall be no more/no less than 8” from the stucco/plaster face of the wall.

8. Dimension, show and call out for step-outs at parking spaces adjacent to planters; a 12” wide monolithic concrete curb, DG paving or pavers with edging.

9. Show parking lot island tree planters 1 for every ten parking spaces and at each row end.

10. Identify that all landscape areas shall be HOA-maintained landscape.

11. Note and show on plans: all AC units shall be located in residential side yards, opposite the main back yard access path with gate, or a second gate and solid surface path on the opposite side shall be added for access.

12. Add Note to Grading and Landscape Plans: Landscape areas where compaction has occurred due to grading activities and where trees or stormwater infiltration areas are located 2237
shall be loosened by soil fracturing. For trees, a 12’x12’x18” deep area; for stormwater infiltration, the entire area shall be loosened. Add the following information on the plans: The backhoe method of soil fracturing shall be used to break up compaction. A 4” layer of Compost is spread over the soil surface before fracturing is begun. The backhoe shall dig into the soil lifting and then drop the soil immediately back into the hole. The bucket then moves to the adjacent soil and repeats. The Compost falls into the spaces between the soil chunks created. Fracturing shall leave the soil surface quite rough with large soil clods.

These must be broken by additional tilling. Tilling in more Compost to the surface after fracturing per the soil report will help create an A horizon soil. Imported or reused Topsoil can be added on top of the fractured soil as needed for grading. The Landscape Architect shall be present during this process and provide certification of the soil fracturing. For additional reference, see Urban Tree Foundation – Planting Soil Specifications.

Landscape Plans

13. Locate light standards, fire hydrants, water, and sewer lines to not conflict with required tree locations. Coordinate civil plans with landscape plans

14. Show all utilities on the landscape plans. Coordinate so utilities are clear of tree locations.

15. Locate trees for shade on in open turf areas, parking lots/end island fingers, seating areas, and paving, screen blank walls and adjacent properties where missing, accent trees to entries and driveways. Locate trees 50% of canopy width from walls, buildings, and existing trees.

16. Show 6’ diameter of mulch only at new trees. Detail irrigation dripline outside of mulched root zone.

17. Overhead spray systems shall be designed for plant material less than the height of the spray head.

18. Show minimum on-site tree sizes per the Landscape Development standards; see the Landscape Planning website. 5% 48” box, 10% 36 box, 30% 24” box, 55% 15 gallon. Palms are not considered trees.

19. Show 25% of trees as California native (Platanus racemosa, Quercus agrifolia, Quercus wislizenii, Quercus douglasii, Cercis occidentalis, etc.) in appropriate locations.

20. Landscape construction plans shall meet the requirements of the Landscape Development Guidelines. See https://www.ontarioca.gov/Planning/Landscape

21. Provide phasing map for multi-phase projects.

22. After a project’s entitlement approval, the applicant shall pay all applicable fees for landscape plan check and inspections at a rate established by resolution of the City Council.

Specific Plan Amendment

23. Change any “New Model Colony” references to “Ontario Ranch.” Page 7.6, 7.15.1 #2. Public Maintenance.

24. Pg. 8.61 & 8.64, All Exhibits: Verify with Engineering if “Pedestrian Entry Portal Gateway” and “Pedestrian Entry Monument” will be permitted within the ROW. Page 8.63, Exhibit 42, Primary Community Entry and Monumentation – Hamner Avenue. 2238

BUILDING DEPARTMENT
303 East B Street, Civic Center, Ontario, CA 91764 Phone (909)395-2023, Fax (909)395-2180

DEVELOPMENT PLAN REVIEW (DPR) COMMENTS
Planning Case File No(s): PGPA24-003_PSPA24-004_PMTT24-008_PDEV24-017 Submittal No: 1 Case Planner: Robert Morales
Applicant:

APN(s): 1073-101-050
Location:

Project Description: An Amendment to the Land Use Element of the Policy Plan (General Plan) component of The Ontario Plan, changing the land use designation on 13.2 acres of land from PS (Public School) to MDR (Medium Density Residential), An Amendment to the Esperanza Specific Plan, changing the land use designation on

13.2 acres of land from PS (Public School) to MDR (Medium Density Residential), A Tentative Tract Map for Common Interest Subdivision purposes, to subdivide

13.2 acres of land into 28 numbered lots and 15 lettered lots, A Development Plan to construct 161 multiple-family dwellings on approximately 13.2 acres of land generally located South of Chatham Street, West of Clifton Street, East of Amherst Avenue, and North of Eucalyptus Avenue, within Planning Area 11 of the Esperanza Specific Plan (APN(s): 1073-101-050)
Reviewed By: Ganda, S. Phone: (909)395-2174
E-mail: [email protected]
Date: 10/7/2024
The following are Standard Building Department Conditions of Approval.

Items with checked boxes are applicable to this Project:

Specific Conditions:
1) -
Specific Comments:
(Note: These comments are NOT Conditions)
1) -
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PGPA24-003_PSPA24-004_PMTT24-008_PDEV24-017 - DPR COMMENTS

BUILDING DEPARTMENT DPR COMMENTS

GENERAL CONDITIONS
☐ 1 The address for the project is:
 2 Prior to, or at the time of plan check submittal, provide a site plan showing all buildings and the addresses assigned to them as stipulated in (1) above, and a list of these buildings and their assigned addresses on 8-1/2” x 11” paper.
 3 Structures must be designed for 110-mph wind exposure C (per City Ordinance).  4 Shall comply with the latest adopted edition of the following codes as applicable: 1 A. California Building Code
B. California Residential Code
C. California Existing Building Code
D. California Electrical Code
E. California Mechanical Code
F. California Plumbing Code
G. California Energy Code.

H. California Fire Code
I. California Green Building Standards Code.
 5 The property owner/business operator shall comply with all applicable City of Ontario Municipal Codes and Ordinances.
☐ 6 The requirements of the Department of Environmental Health Services and the Air Quality Management District shall be satisfied prior to the issuance of any permit if hazardous materials are stored and/or used.
 7 Pursuant to the California Business and Professions Code Section 6737, most projects are required to be designed by a California Licensed Architect or Engineer. The project owner or developer should review the section of the California Codes and comply with the regulation.  8 All perimeter/boundary walls/fences shall be designed and constructed so that the outer/exterior face of the wall/fence is as close as possible to the lot line. In any case, the outer/exterior face of the wall shall be within two (2) inches of the lot line. Distances greater than two (2) inches may be approved prior to construction by the Building Official on a case-by-case basis for extenuating circumstances.
☐ 9 All lot lines, easement lines, etc. shall be located and/or relocated in such a manner as to not cause any existing structure to become nonconforming with the requirements of the latest adopted edition of the Building Code, or any other applicable law, ordinance, or code. 10 Non-buildable easement(s) needed for this project. Show on plans and provide easement(s) prior to building permits.
 11 The Developer/Owner is responsible for the coordination of the final occupancy. The Developer/Owner shall obtain clearances from each reviewing department and division prior to requesting a final building inspection from the Building Department. Each reviewing department shall sign off in the Building Department permit software. ☐ 12 All signs shall be Underwriters Laboratories, or equal, approved. ☐ 13 Permits are required prior to the removal and/or demolition of structures. ☐ 14 In addition to approval from Building Department, approval is required from the County of San Bernardino, Department of Public Health and the California Regional Water Quality Control Board, Santa Ana Region for the Private Sewage Disposal System. ☐ 15 The existing private sewage system will have to be modified as required to accommodate the new use. Plans and/or supporting data will have to be submitted to, and approved by, the Building Department regarding the new use and necessary modifications. Additionally, approval from the Regional Water Quality Control Board, Santa Ana Region, is required for the new use. ☐ 16 The coach shall bear a State of California, Department of Housing and Community Development (HCD) insignia indicating the occupancy group and design loads that the coach conforms to, and other relevant information regarding exiting, fire safety, electrical, plumbing and mechanical. The foundation system, porch and awning shall comply with plans that bear the HCD “Standard Plan 2240
PGPA24-003_PSPA24-004_PMTT24-008_PDEV24-017 - DPR COMMENTS

BUILDING DEPARTMENT DPR COMMENTS
Approval” stamp. The coach, foundation system, porch and awning shall comply with the City of Ontario’s design loads and site-specific conditions.
☐ 17 The conversion of the existing single-family dwelling(s) into a commercial use changes the occupancy group classification, and therefore the existing buildings must be made to comply with the requirements of all applicable codes for the new occupancy classification. Complete plans, calculations and other specifications shall be submitted to the Building Department for review, approval and subsequent permit issuance. The plans, calculations and other specifications shall be prepared by an Architect or Registered Civil/Structural Engineer licensed by the State of California who is qualified to perform said wo
☐ 18 The site, or a portion of the site, is in a flood hazard area. Justification that the proposed development does not adversely affect the location or carrying capacity of the floodway, nor does it adversely affect upstream or downstream sites shall be provided to Building Department.

Additionally, all provisions must be taken to protect the site from flood damage. ☐ 19 All exterior lighting shall be orientated, directed, and/or shielded as much as possible so that direct illumination does not infringe onto adjoining properties  20 Site facilities such as parking open or covered, recreation facilities, and trash dumpster areas, and common use areas shall be accessible per the CBC, Chapter 11.  21 Trash Enclosure shall be covered, and the interior clearances shall be designed to accommodate the following:
• 4’ min. side access entrance
• 3’ min. wide clear pathway along rear of enclosure between trash bins and back wall. • Trash bins must be oriented sideways to allow access from the narrow dimension. • Use of curbs or wheel stops shall be provided within the enclosure to maintain access clearances and bin orientations.
 22 The applicant/developer shall include the conditions of approval of this resolution on the construction plans.
 23 Site development and grading shall be designed to provide access to all entrances and exterior ground floors exits and access to normal paths of travel, and where necessary to provide access. Paths of travel shall incorporate (but not limited to) exterior stairs, landings, walks and sidewalks, pedestrian ramps, curb ramps, warning curbs, detectable warning, signage, gates, lifts and walking surface materials. The accessible route(s) of travel shall be the most practical direct route between accessible building entrances, site facilities, accessible parking, public sidewalks, and the accessible entrance(s) to the site, California Building Code, (CBC) Chapter 11, Sec, 11A and 11B.
☐ 24 Commercial/Industrial gated site must have at least one pedestrian emergency gate, 3’-0’ x 6’-8” min. gate size, equipped with panel hardware on the inside, and gate must swing out. Pedestrian emergency gates can be installed integrated with vehicular gates.  25 New residential single-family dwelling (SFD’s):
• The side yard gate must swing out toward the street.
• The gas meter shall not obstruct side yard access gates. • Air Conditioning unit located at side yard shall maintain 3’ min. clearance from property line wall to AC unit.
• Provide a continuous concrete walk between garage side door to driveway or sidewalk.  26 New development projects located in the Ontario Ranch specific plan are required to submit a methane assessment report. This report shall be submitted to the Building Department for review and approval at grading plan submittal. Comply with the METHANE ASSESSMENT FOR PROJECTS IN THE ONTARIO RANCH SPECIFIC PLAN guideline. This guideline is available on the Building Department website
☐ 27 If hazardous substances are used and/or stored, a technical opinion and report, identifying and developing methods of protection from the hazards presented by the hazardous materials may be required. This report shall be prepared by a qualified person, firm, or corporation and submitted to Building Department. This report shall also explain the proposed facility's intended methods of 2241
PGPA24-003_PSPA24-004_PMTT24-008_PDEV24-017 - DPR COMMENTS

BUILDING DEPARTMENT DPR COMMENTS
operation and list all of the proposed materials, their quantities, classifications, and the effects of any chemical (material) intermixing in the event of an accident or spill. ☐ 28 The property owner/business operator shall provide a grease interceptor at a location where it shall be easily accessible for inspection, cleaning, and removal of accumulated grease. The sizing and installation shall conform to the current California Plumbing Code. The grease interceptor shall be constructed in accordance with plans approved by the Director of Public Works and the Building Official. The property owner/business operator shall contract with a maintenance company for maintenance and cleaning of the grease interceptor.  29 Onsite private sewer, domestic water, and storm drainage systems shall be designed in accordance with the CPC/UPC requirements, including but not limited to, the sizing of pipes. These systems must be reviewed, approved, and inspected by the Building Department. Design standards used by other departments for off-site sewer, water, and storm drainage systems shall not be used for such onsite systems.
 30 The design for public domestic water, sewer, and storm drainage on any private streets shall be reviewed and approved by the Engineering Department. Such design need not be submitted to the Building Department for approval.
☐ 31 Conditions of approvals shall be reproduced onto the plans submitted for permits.  32 Development Impact fees are due on this project at permit issuance  33 Provide accessible path of travel between buildings.  34 When submitting permit applications for new single-family dwellings master/stock plan in the New Model Colony, a table summarizing lots/tract, models, square footage, and number of plumbing fixtures, electrical, and mechanical shall be included on the plan.  35 When submitting permit applications for production homes, include two sets of site plans showing the setback from property lines and the model number/type.

SITE CONSTRUCTION REQUIREMENTS
 36 All construction sites must be protected by a security fence and screening. The fencing and screening shall always maintained to protect pedestrians  37 Temporary toilet facilities shall be provided for construction workers. The toilet facilities shall be maintained in a sanitary condition. Construction toilet facilities of the non-sewer type shall conform to ANSI ZA.3
 38 Construction projects which require temporary electrical power shall obtain an Electrical Permit from Building Department. No temporary electrical power will be granted to a project unless one of the following items is in place and approved by Building Department and the Planning Department. (A) Installation of a construction trailer, or
(B) Security fenced area where the electrical power will be located  39 Installation of construction/sales trailers must be located on private property. No trailers can be in the public street right of way.
 40 Any temporary building, trailer, commercial coach, etc. installed and/or used in connection with a construction project shall comply with City Code.
 41 Prior to issuance of a Building Permit all of the following must be in place: portable toilet with hand wash station, all BMP's, fencing and signage on each adjacent street saying "If there is any dust or debris coming from this site please contact (superintendent number here) or the AQMD if the problem is not being resolved" or something similar to this.

PRIOR TO ISSUANCE OF BUILDING/CONSTRUCTION PERMITS
 42 The following grading items shall be completed and/or submitted – as applicable – prior to the issuance of building permits for this project:

A. Precise grading plans shall be approved
B. Rough grading completed
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PGPA24-003_PSPA24-004_PMTT24-008_PDEV24-017 - DPR COMMENTS

BUILDING DEPARTMENT DPR COMMENTS
C. Compaction certification completed
D. Pad elevation certification completed
E. Rough grade inspection signed off by a City’s Building  43 Prior to the issuance of a Building Permit, the applicant shall pay all Development Improvement Fees to the City. Copies of receipts shall be provided to the Building Department prior to permit issuance.
 44 The Tract or Parcel map shall be recorded prior to the issuance of any permits. ☐ 45 The existing parcels shall be combined into a single parcel, or a lot line adjustment shall be done so that the proposed structure(s) does not cross any lot line and complies with all requirements of the California Building Code, prior to any building permits being issued.  46 Fire sprinklers, fire alarm systems and fire hydrant plans shall be submitted for plan review concurrently with building plans and shall be approved prior to permit issuance.  47 Prior to issuance of Building Permits, school fees need to be paid to school district where project is located.

2243

CITY OF ONTARIO

MEMORANDUM
TO: Robert Morales, Associate Planner
Planning Department
FROM: Paul Ehrman, Sr. Deputy Fire Chief/Fire Marshal
Fire Department
DATE: September 19, 2024
SUBJECT: PDEV24-017 - A Development Plan to construct 161 multiple-family dwellings on approximately 13.2 acres of land generally located South of Chatham Street, West of Clifton Street, East of Amherst Avenue, and North of Eucalyptus Avenue, within Planning Area 11 of the Esperanza Specific Plan (APN(s): 1073-101-050). Related File(s): PGPA24-003, PSPA24-004, PMTT24-008.

The plan does adequately address Fire Department requirements at this time.

Standard Conditions of Approval apply, as stated below.

SITE AND BUILDING FEATURES:

A. 2022 CBC Type of Construction: Type V-B
B. Type of Roof Materials: Ordinary
C. Ground Floor Area(s): Varies
D. Number of Stories: 2 + 3
E. Total Square Footage: Varies, Approx. 1,600 Sq. Ft.

F. 2022 CBC Occupancy Classification(s): R3
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CONDITIONS OF APPROVAL:

1.0 GENERAL

1.1 The following are the Ontario Fire Department (“Fire Department”) requirements for this development project, based on the current edition of the California Fire Code (CFC), and the current versions of the Fire Prevention Standards (“Standards.”) It is recommended that the applicant or developer transmit a copy of these requirements to the on-site contractor(s) and that all questions or concerns be directed to the Bureau of Fire Prevention, at (909) 395-2029.

For copies of Ontario Fire Department Standards please access the City of Ontario web site at www.ontarioca.gov/Fire/Prevention.

1.2 These Fire Department conditions of approval are to be included on any and all construction drawings.

2.0 FIRE DEPARTMENT ACCESS

2.1 Fire Department vehicle access roadways shall be provided to within one hundred and fifty feet (150’) of all portions of the exterior walls of the first story of any building, unless specifically approved. Roadways shall be paved with an all-weather surface and shall be a minimum of twenty-four (24) ft. wide. See Standard #B-004.

2.2 In order to allow for adequate turning radius for emergency fire apparatus, all turns shall be designed to meet the minimum twenty-five feet (25’) inside and forty-five feet (45’) outside turning radius per Standard #B-005.

2.3 Fire Department access roadways that exceed one hundred and fifty feet (150’) in length shall have an approved turn-around per Standard #B-002.

2.4 Access drive aisles which cross property lines shall be provided with CC&Rs, access easements, or reciprocating agreements, and shall be recorded on the titles of affected properties, and copies of same shall be provided at the time of building plan check.

2.5 "No Parking-Fire Lane" signs and /or red painted curbs with lettering are required to be installed in interior access roadways, in locations where vehicle parking would obstruct the minimum clear width requirement. Installation shall be per Standard #B-001.

2.6 Security gates or other barriers on fire access roadways shall be provided with a Knox brand key switch or padlock to allow Fire Department access. See Standards #B-003, B-004 and H001.

2.7 Any time PRIOR to on-site combustible construction and/or storage, a minimum twenty-four feet (24’) wide circulating all weather access roads shall be provided to within one hundred and fifty feet (150’) of all portions of the exterior walls of the first story of any building, unless specifically approved by fire department and other emergency services. 2245
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3.0 WATER SUPPLY

3.1 The required fire flow per Fire Department standards, based on the 2019 California Fire Code, Appendix B, is 1500 gallons per minute (g.p.m.) for 2 hours at a minimum of 20 pounds per square inch (p.s.i.) residual operating pressure.

3.2 Off-site (public) fire hydrants are required to be installed on all frontage streets, at a maximum spacing of three hundred feet (300’) apart, on alternating sides of the street. Streets with a center median shall require public hydrants spaced five hundred feet (500’) apart, on the same side of the street.

3.4 The water supply, including water mains and fire hydrants, shall be tested and approved by the Engineering Department and Fire Department prior to combustible construction to assure availability and reliability for firefighting purposes.

4.0 FIRE PROTECTION SYSTEMS

4.1 On-site private fire hydrants are required per Standard #D-005, and identified in accordance with Standard #D-002. Installation and locations(s) are subject to the approval of the Fire Department. An application with detailed plans shall be submitted, and a construction permit shall be issued by the Fire Department, prior to any work being done.

4.2 Underground fire mains which cross property lines shall be provided with CC & R, easements, or reciprocating agreements, and shall be recorded on the titles of affected properties, and copies of same shall be provided at the time of fire department plan check. The shared use of private fire mains or fire pumps is allowable only between immediately adjacent properties and shall not cross any public street.

4.3 An automatic fire sprinkler system is required. The system design shall be in accordance with National Fire Protection Association (NFPA) Standard 13. All new fire sprinkler systems, except those in single family dwellings, which contain twenty (20) sprinkler heads or more shall be monitored by an approved listed supervising station. An application along with detailed plans shall be submitted, and a construction permit shall be issued by the Fire Department, prior to any work being done.

4.4 Wood frame buildings that are to be sprinkled shall have these systems in service (but not necessarily finaled) before the building is enclosed.

4.7 Portable fire extinguishers are required to be installed prior to occupancy per Standard #C-001.

Please contact the Fire Prevention Bureau to determine the exact number, type and placement required.

5.0 BUILDING CONSTRUCTION FEATURES

5.1 The developer/general contractor is to be responsible for reasonable periodic cleanup of the development during construction to avoid hazardous accumulations of combustible trash and debris both on and off the site.
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5.2 Approved numbers or addresses shall be placed on all new and existing buildings in such a position as to be plainly visible and legible from the street or road fronting the property. Multitenant or building projects shall have addresses and/or suite numbers provided on the rear of the building. Address numbers shall contrast with their background. See Section 9-1 6.06 of the Ontario Municipal Code and Standards #H-003 and #H-002.

5.3 Single station smoke alarms and carbon monoxide alarms are required to be installed per the California Building Code and the California Fire Code.

5.4 Multiple unit building complexes shall have building directories provided at the main entrances. The directories shall be designed to the requirements of the Fire Department, see Section 9-1 6.06 of the Ontario Municipal Code and Standard #H-003.

5.5 All residential chimneys shall be equipped with an approved spark arrester meeting the requirements of the California Building Code.

5.6 Knox ® brand key-box(es) shall be installed in location(s) acceptable to the Fire Department.

All Knox boxes shall be monitored for tamper by the building fire alarm system. See Standard #H-001 for specific requirements.
2247

CITY OF ONTARIO

MEMORANDUM
FROM: Heather Lugo, MA, Police Department
DATE: September 9, 2025
SUBJECT: PDEV24-017 - A Development Plan to construct 161 multiple-family dwellings on approximately 13.2 acres of land generally located South of Chatham Street, West of Clifton Street, East of Amherst Avenue, and North of Eucalyptus Avenue, within Planning Area 11 of the Esperanza Specific Plan (APN(s): 1073-101-050). Related File(s): PGPA24-003, PSPA24-004, PMTT24-008.

The “Standard Conditions of Approval” contained in Resolution No. 2017-027 apply. The applicant shall read and be thoroughly familiar with these conditions, including, but not limited to, the requirements below. • Required lighting for all walkways, driveways, doorways, parking lots, hallways and other areas used by the public shall be provided. Lights shall operate via photosensor. Planned landscaping shall not obstruct lighting.
• The Applicant shall comply with construction site security requirements as stated in the Standard Conditions.
• All exterior electrical outlets in common areas shall be secured and locked (if accessible to the public).
• All exterior water spigots / water supply sources in common areas shall be secured and locked (if accessible to the public).
• Trash enclosure (if applicable) shall be fully secured/enclosed by locks, mesh, and screen grate to reduce crime and encampment opportunities for homeless persons.

The Applicant is invited to contact Heather Lugo at (909) 408-1074 with any questions or concerns regarding these conditions.
2248
RESOLUTION NO. _______

A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF ONTARIO,

CALIFORNIA, APPROVING THE USE OF AN ADDENDUM TO THE
ONTARIO PLAN 2050 SUPPLEMENTAL ENVIRONMENTAL IMPACT

REPORT, IN ACCORDANCE WITH THE CALIFORNIA ENVIRONMENTAL QUALITY ACT, AS AMENDED, FOR FILE NOS. PGPA24-003 AND
PSPA24-004.

WHEREAS, GDC Investments 13, LP (Applicant) filed an Applications for the following: [1] An General Plan Amendment (File No. PGPA24-003) to The Ontario Plan (TOP) 2050 Policy Plan (General Plan) Land Use Map to change the land use designation on approximately 10.02 acres of land, located south of Chatham Street, west of Clifton Avenue, east of Amherst Avenue, and north of Eucalyptus Avenue, from Public School to Medium Density Residential; [2] A Specific Plan Amendment (File No. PSPA24-004) to the Esperanza Specific Plan to revise the specific plan for consistency with TOP Policy Plan (General Plan) Land Use Map. The amendment includes [i] revising the allowed uses within Planning Area 11 from School to RD-7/Row Townhomes; and [ii] modifying the Specific Plan land use map, development standards, exhibits, and text to reflect the proposed land use changes; and
WHEREAS, the City of Ontario certified the Environmental Impact Report prepared for TOP and associated Statement of Overriding Considerations, and issued Resolution No. 2010-003; and
WHEREAS, the City of Ontario adopted the Policy Plan (General Plan) as part of the component framework for TOP on January 27, 2010, and issued Resolution No. 2010-004; and
WHEREAS, the City of Ontario certified the Supplemental Environmental Impact Report (SEIR), for the General Plan Amendment for TOP 2050 Technical Update on August 16, 2022; and
WHEREAS, TOP 2050 Supplemental Environmental Impact Report (SEIR)(State Clearinghouse No. 2021070364) was certified on August 16, 2022 (hereinafter referred to as Certified SEIR), in which development and use of the Project site was discussed; and WHEREAS, the Planning Director of the City of Ontario has prepared and approved for attachment to the certified Environmental Impact Report, an Addendum to the Certified SEIR (hereinafter referred to as "SEIR Addendum") 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 SEIR Addendum concluded that implementation of the Project could result in a number of significant effects on the environment that were previously analyzed in the Certified SEIR, and that the Certified SEIR identified mitigation measures that would reduce each of those significant effects to a less-than-significant level; and 2249
WHEREAS, pursuant to State CEQA Guidelines Section 15164(a), a lead agency shall prepare an addendum to a previously certified SEIR if some changes or additions are necessary to a project, but the preparation of a subsequent or supplemental SEIR is not required; and
WHEREAS, the City determined that none of the conditions requiring preparation of a subsequent or supplemental SEIR would occur from the Project, and that preparation of an Addendum to the Certified SEIR was appropriate; and WHEREAS, on September 23, 2025, the Planning Commission of the City of Ontario conducted a hearing to consider the Addendum and concluded said hearing on that date, voting to issue Resolution No. PC25-047 recommending that the City Council concluded that none of the conditions requiring preparation of a subsequent or supplemental SEIR have occurred, and further recommending that the City Council take actions on the Project in compliance with CEQA and state and local guidelines implementing CEQA; and
WHEREAS, the City of Ontario is the lead agency on the Project, and the City Council is the decision-making authority for the requested approval to construct and otherwise undertake the Project; and
WHEREAS, the City Council has reviewed and considered the SEIR Addendum for the Project, has concluded that none of the conditions requiring preparation of a subsequent or supplemental SEIR have occurred, and intends to take actions on the Project in compliance with CEQA and state and local guidelines implementing CEQA; and WHEREAS, the SEIR Addendum for the Project are on file in the Planning Department, located at 303 East 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; and
WHEREAS, all legal prerequisites to the adoption of this Resolution have occurred.

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 decisionmaking authority for the Project, The City Council has reviewed and considered the information contained in the administrative record for the Project. Based upon the facts and information contained in the administrative record, including all written and oral evidence presented to the City Council, the City Council finds as follows:
(1) The environmental impacts of this Project were reviewed in conjunction with an Addendum to TOP 2050 Supplemental Environmental Impact Report (SEIR)(State Clearinghouse No. 2021070364), certified by the Ontario City Council on August16, 2022, in conjunction with File No. PGPA20-002; and 2250
(2) The SEIR Addendum and administrative record have been completed in compliance with CEQA, the State CEQA Guidelines, and the City of Ontario Local CEQA Guidelines; and
(3) The City's "Guidelines for the Implementation of the California Environmental Quality Act (CEQA)" provide for the use of a single environmental assessment in situations where the impacts of subsequent projects are adequately analyzed. This Application introduces no new significant environmental impacts; and (4) All previously adopted mitigation measures shall be a condition of project approval, as they are applicable to the Project, and are incorporated herein by this reference; and
(5) The SEIR Addendum contains complete and accurate reporting of the environmental impacts associated with the Project, and reflects the independent judgment of the City Council; and
(6) There is no substantial evidence in the administrative record supporting a fair argument that the project may result in significant environmental impacts.

SECTION 2: Additional Environmental Review Not Required. Based on the Addendum, all related information presented to the City Council, and the specific findings set forth in Section 1, above, the City Council finds that the preparation of a subsequent or supplemental Environmental Impact Report is not required for the Project, as the Project:
(1) Does not constitute substantial changes to the Certified SEIR that will require major revisions to the Certified SEIR due to the involvement of new significant environmental effects or a substantial increase in the severity of previously identified significant effects; and
(2) Does not constitute substantial changes with respect to the circumstances under which the Certified SEIR was prepared, that will require major revisions to the Certified SEIR due to the involvement of new significant environmental effects or a substantial increase in the severity of the previously identified significant effects; and
(3) Does not contain new information of substantial importance that was not known and could not have been known with the exercise of reasonable diligence at the time the Certified SEIR was certified/adopted, that shows any of the following:
(a) The project will have one or more significant effects not discussed in the Certified SEIR; or
(b) Significant effects previously examined will be substantially more severe than shown in the Certified SEIR; or
(c) Mitigation measures or alternatives previously found not to be feasible would in fact be feasible and would substantially reduce one or more significant effects of the Project, but the City declined to adopt such measures; or 2251
(d) Mitigation measures or alternatives considerably different from those analyzed in the Certified SEIR would substantially reduce one or more significant effects on the environment, but which the City declined to adopt.

SECTION 3: City Council Action. Based upon the findings and conclusions set forth in Sections 1 and 2, above, the City Council hereby finds that based upon the entire record of proceedings before it, and all information received, that there is no substantial evidence that the Project will constitute substantial changes to the Certified SEIR, and does hereby approve the SEIR Addendum, attached hereto as "Attachment A," and incorporated herein by this reference.

SECTION 4: Indemnification. The Applicant shall agree to defend, indemnify and hold harmless, the City of Ontario or its agents, officers, and employees from any claim, action or proceeding against the City of Ontario or its agents, officers or employees to attack, set aside, void, or annul this approval. The City of Ontario shall promptly notify the applicant of any such claim, action, or proceeding, and the City of Ontario shall cooperate fully in the defense.

SECTION 5: 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 East "B" Street, Ontario, California 91764. The custodian for these records is the City Clerk of the City of Ontario.

PASSED, APPROVED, AND ADOPTED this 4
th day of November 2025.
_____________________________________
PAUL S. LEON, MAYOR
ATTEST:
_________________________________

SHEILA MAUTZ, CITY CLERK
APPROVED AS TO FORM:
_______________________________

BEST BEST & KRIEGER LLP

CITY ATTORNEY
2252

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. 2025- was duly passed and adopted by the City Council of the City of Ontario at their regular meeting held November 4, 2025, 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. 2025- duly passed and adopted by the Ontario City Council at the regular meeting held November 4, 2025. _________________________________

SHEILA MAUTZ, CITY CLERK
(SEAL)
2253
ATTACHMENT A:

Addendum to The Ontario Plan 2050 Supplemental
Environmental Impact Report
(State Clearinghouse No. 2021070364)
(Addendum to follow this page)
2254
2255

1. Project Title/File Nos.: Esperanza PA-11 SPA/File Nos.: PPA24-0139, PGPA24-004, PSPA24-004, PDEV24-017, PMTT24-008, PDA25-003

2. Lead Agency: City of Ontario-Planning Department, 303 East B Street, Ontario, CA 91764

3. Contact Person: Robert Morales, Phone: (909) 395-2432, Email:
[email protected]

4. Project Sponsor: GDC Investments 14, LP; 12770 El Camino Real, Suite 220, San Diego, CA 92130

5. Project Location: The Project site is located in southwestern San Bernardino County, within the City of Ontario. Ontario is located approximately 40 miles from downtown Los Angeles, 20 miles from downtown San Bernardino, and 30 miles from Orange County. Please refer to Figure 1, Regional Location Map. As shown in Figure 2, Aerial Site Photograph, the Project site is bound by Eucalyptus Avenue to the south, South Amherst Avenue to the west, Chatham Street to the north, and Clifton Avenue to the east. Regional access is provided via Interstate 15 (I-15) and State Route 60 (SR-60).

6. Policy Plan (General Plan) Designation: Existing - Public School (PS); Proposed – Medium Density Residential (MRD).

7. Zoning Designation: Existing – School under the Ontario Esperanza Specific Plan; Proposed – Planning Area 11 (RD-7 / Row Townhomes of the Esperanza Specific Plan
2256
Project Site

EUCALYPTUS AVE

S HAVEN AVE

ONTARIO RANCH RD

E RIVERSIDE DR

BELLEGRAVE AVE

ARCHIBALD AVE

SCHLEISMAN RD

LIMONITE AVE

CHINO AVE

MISSION BLVD

S HAVEN AVE

S CLEVELAND AVE

HAMMER AVE RIVERSIDE COUNTY

SAN BERNARDINO COUNTY

ARCHIBALD AVE

WINEVILLE AVE

ETIWANDA AVE

LIMONITE AVE

HAMMER AVE

EASTVALE
JURUPA
VALLEY
NORCO
Swan Lake
·|þ}60
·|þ}60
%&'(15
UP
Regional Location Map
FORM J
0 1,750 3,500 875
Feet
Source(s): ESRI, NearMap Imagery (May 2024), SB County (2024), RCIT (2024)

Figure 1
Addendum to The Ontario Plan 2050 Supplemental Environmental Impact Report File No(s).: PPA24-0139, PGPA24-004, PSPA24-004, PDEV24-017, PMTT24-008, PDA25-003 2257
Project Site

CHATHAM ST

CLIFTON AVE

E EUCALYPTUS AVE

S AMHERST AVE

E SUNSET ST

E MALAGON PRIVADO

E CATAALINA ST

S AFTON PRIVADO

E AMIGOS PRIVADO

S ANNISTON AVE

E EUCALYPTUS AVE

S AMHERST AVE

CLIFTON AVE
Aerial Site Photograph
FORM J
0 150 300 75
Feet
Source(s): ESRI, NearMap Imagery (May 2024) Figure 2
Addendum to The Ontario Plan 2050 Supplemental Environmental Impact Report File No(s).: PPA24-0139, PGPA24-004, PSPA24-004, PDEV24-017, PMTT24-008, PDA25-003

2258
Addendum to The Ontario Plan 2050 Supplemental Environmental Impact Report File No(s).: PPA24-0139, PGPA24-004, PSPA24-004, PDEV24-017, PMTT24-008, PDA25-003

8. Description of Project: The Project proposed the following entitlements:

1. A General Plan Amendment (File No. PGPA24-004) to change the land use designation of the Project site from Public School (PS) to Medium Density Residential (MDR).

2. A Specific Plan Amendment (File No. PSPA24-004) to the Ontario Ezperanza Specific Plan (adopted on February 6, 2007) to change the land use designation of approximately 10.02 net acres of land from School to MDR 25. The amended Specific Plan is presented as Appendix A to this Addendum.

3. A Development Plan (File No. PDEV24-017) to construct 161 multi-family residential units on approximately 10.02 net acres (APN:
1073-101-05). The Project would also include amenities including a pool/spa, playground, shaded barbecue/picnic area, fitness stations, and open turf areas. Refer to Figure 3, Site Plan.

4. Tentative Parcel Map (File No. PMTT24-008).

5. Development Agreement (PDA25-003) between the City of Ontario and the Project Applicant pursuant to California Government Code Sections 65864 et seq.

Building Characteristics and Operations
The Project proposes a mix of 2-story (69) and 3-story (92) units. Units would range in size from 1,350 to 1,717 square feet. Representative elevations of each building type are presented in Figures 4 and 5. Although color schemes would vary on each of the buildings, the color palette of the Project features neutral building tones, accented with siding, stucco, and wall tile accents. Buildings would range from approximately 28’ to 39’ high.

Circulation and Parking
Vehicular access will be provided via a driveway off of Chatham Street and another off Amherst Avenue. The Project also includes a total of 433 parking spaces, comprised of 322 garage spaces, 45 uncovered spaces, 17 driveway spaces, and 49 off-site parallel spaces.
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Landscaping, Walls, and Lighting
The landscape concept proposes California-friendly plant materials consistent with the Esperanza Specific Plan. As depicted in Figure 6, Landscape Plan, a variety of trees, shrubs, accent plants, and ground cover are proposed along the perimeter of the Project site, and throughout the community. A total of 494 trees are proposed on-site. Accent specimen 36" box and 48" box trees would be provided at corners and entries. Consistent with City standards, 25 percent of tree species planted on-site would be California natives.

The Project would construct a 6-foot community theme wall along Eucalyptus Avenue. Corner entry monuments would be implemented at the corners of Eucalyptus Avenue/Amherst Avenue and Eucalyptus Avenue/Clifton Avenue.

The Project’s primary entry off Chatham Street would be flanked by entry monuments on either side.

Exterior lighting would be installed on-site, as necessary, for safety, security, and wayfinding. Decorative architectural lighting as well as landscape lighting would also be installed to accent building entries as focal points throughout the site. Ornamental landscaping, lighting, walls, and utility infrastructure improvements/connections would be installed per compliance with the City's Municipal Code.

Infrastructure Improvements
Currently, the Project site is fully graded. Adjacent streets have been previously constructed, and no off-site roadways are anticipated as part of the Project.

Peripheral improvements such as sidewalk and curb upgrades will be completed as part of the Project. Utility stubs currently exist adjacent to the site.

Water service to the Project site would be provided by the Ontario Municipal Utilities Company (OMUC). The Project on-site water system would connect to existing 8-inch water lines in Amherst Avenue and Chatham Street adjacent to the site. See Figure 7, Water Plan.
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Sanitary sewer service to the Project site would be provided by Inland Empire Utilities Agency (IEUA). Proposed on-site sewer lines would connect to an existing 8-inch line in South Amherst Avenue, adjacent to the site. See Figure 8, Sewer Plan.

The Project site currently drains in a southwesterly direction towards the intersection of Eucalyptus Avenue and Amherst Avenue where an on-site detention basin is located. The basin has a 36-inch inlet that joins a public storm drain in Amherst Avenue. The Project would implement an on-site storm drain system that generally maintains the existing drainage pattern and connects to the existing storm drain in Amherst Avenue. The Projects on-site storm drainage system would function as a flow restriction by oversizing the on-site capacity and providing on-site storage to ensure outflow would be consistent with the capacity of the surrounding storm drainage system.

Dry utilities serving the Project area include Southern California Edison, Southern California Gas Company, and various telecommunication providers.

The Project would include installation of on-site dry utility infrastructure that is anticipated to connect with the existing infrastructure available in the vicinity.

It is noted that the Project would not require natural gas infrastructure or service.

GHG-Reduction Features
The Project includes the following design features aimed at reducing the Project’s GHG emissions.
• Building Electrification
o Electric Space Heater
o Electric Water Heater
o Electric Stove
o Electric Dryer
o Electric Pool Heater
o Electric Spa Heater
o Lack of Natural Gas Infrastructure
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• Vehicle Electrification
o Installation of Level 2 EV or higher charging stations at a rate of 30% or more of required vehicle spaces.
• Waste Diversion
o Storage and collection of green waste, organic waste, and recyclables.
• Water Conservation
o Water efficient showerheads and faucets
o Outdoor landscaping consists of drought tolerant, low maintenance plants with a drip irrigation or weather-based controller sprinkler system.

Please also refer to Checklist item 8, Greenhouse Gas Emissions.

Project Construction Characteristics:

Phased construction is expected to commence in early 2025 and would last through the remainder of the year. Construction activities are as follows:
• Demolition
• Site Preparation & Grading
• Building Construction
• Paving
• Architectural Coating & Landscaping
The site would not require any import/export of soils to accommodate the Project.
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9. Project Setting: As shown in previous Figure 2, the Project site is currently vacant, undeveloped property. The site is surrounded by existing and/or approved residential uses, as well as an approved park use. Although sidewalks, curbs, gutters, and streetlights are in place along the site’s perimeter, upgrades will occur to better accommodate the Project.

10.Background: On January 27, 2010, the Ontario City Council adopted The Ontario Plan (“TOP”). An Environmental Impact Report (“EIR”) was prepared for TOP (State Clearinghouse No. 2008101140) and certified by the City Council on January 27, 2010 (hereinafter referred to as “Certified EIR”), which included Mitigation, Findings and a Statement of Overriding Considerations pursuant to the requirements of the California Environmental Quality Act, commencing with Public Resources Code Section 21000 (“CEQA”). Subsequently, on August 16, 2022, the Ontario City Council adopted The Ontario Plan 2050 (“TOP 2050”), an update to TOP. TOP 2050 serves as the framework for the City’s business plan and provides a foundation for the City to operate as a municipal corporation that consists of six (6) distinct components: 1) Vision; 2) Governance Manual; 3) Policy Plan; 4) Council Priorities; 5) Implementation; and 6) Tracking and Feedback. The Policy Plan component of TOP 2050 meets the functional and legal mandate of a General Plan and contains nine elements: Land Use, Housing, Parks and Recreation, Environmental Resources, Community Economics, Safety, Mobility, Community Design and Social Resources.

A Supplemental Environmental Impact Report (“SEIR”) was prepared for TOP 2050 (State Clearinghouse No. 2021070364) and was certified by the City Council on August 16, 2022 (hereinafter referred to as “Certified SEIR”). The Certified SEIR analyzed the direct and physical changes in the environment that would be caused by TOP 2050; focusing on changes to land use associated with the buildout of the proposed land use plan compared to the TOP, and in the Policy Plan and impacts resultant of population and employment growth in the City.

The Project site was analyzed in the Certified SEIR as a school use. 2269
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It is also noted that the Project site is located within the Ezperanza Specific Plan area. As originally envisioned, the 223-acre Specific Plan area included 916 single-family residential dwelling units, 494 cluster/town home dwelling units, a 10-acre elementary school site, and a total of nine acres of park land. The Specific Plan included a caveat that if the Mountain View School District chose not to utilize the school site, up to 46 residential units could be developed in place of the school. An EIR was prepared for the Specific Plan in 2006.

Since the time of the Specific Plan EIR, the School District has decided not to acquire the 10-acre site. As such, the Specific Plan Amendment (SPA) analyzed within this Addendum reflects the use of the previous school site for the development of the residential uses proposed by the Project.

Because of the age of the Specific Plan EIR (2006), this document tiers off the SEIR prepared for TOP 2050 (2022) in an effort to reflect more current environmental conditions and study methodologies. Notwithstanding, the Esperanza Specific Plan EIR included various mitigation measures for the entire Specific Plan area. Some of these mitigation measures remain applicable to the Project considered herein. Appendix B to this Addendum contains a complete listing of all mitigation required within the Esperanza Specific Plan EIR and provides an applicability determination for the Esperanza PA-11 SPA Project. The City would require the implementation of the applicable measures as Conditions of Approval for the Project.

11.CEQA Requirements for an Addendum: If changes to a project or its circumstances occur or new information becomes available after adoption of a previous EIR or negative declaration, the lead agency may: (1) prepare a subsequent EIR if the criteria of State CEQA Guidelines Section 15162(a) are met, (2) prepare a subsequent negative declaration, (3) prepare an addendum, or (4) prepare no further documentation. (State CEQA Guidelines Section 15162(b)). When only minor technical changes or additions to the previous EIR or negative declaration are necessary and none of the conditions described in section 15162 calling for the preparation of a subsequent EIR or negative declaration have occurred, CEQA allows the lead agency to prepare and adopt an addendum. (State CEQA Guidelines Section 15164(b).) 2270
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Under Section 15162, a subsequent EIR or negative declaration is required only when:
1) Substantial changes are proposed in the project which will require major revisions of the previous EIR or negative declaration due to the involvement of new significant environmental effects or a substantial increase in the severity of previously identified significant effects; 2) Substantial changes occur with respect to the circumstances under which the project is undertaken which will require major revisions of the previous EIR or negative declaration due to the involvement of any new significant environmental effects or a substantial increase in the severity of previously identified significant effects; or 3) New information of substantial importance, which was not known and could not have been known with the exercise of reasonable diligence at the time the previous EIR or negative declaration was adopted, shows any of the following:
a) The project will have one or more significant effects not discussed in the previous EIR;
b) Significant effects previously examined will be substantially more severe than shown in the previous EIR;
c) Mitigation measures or alternatives previously found not to be feasible would in fact be feasible and would substantially reduce one or more significant effects of the project, but the project proponents decline to adopt the mitigation measure or alternative; or
d) Mitigation measures or alternatives which are considerably different from those analyzed in the previous EIR would substantially reduce one or more significant effects on the environment, but the project proponents decline to adopt the mitigation measure or alternative.
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Thus, if the Project does not result in any of the circumstances listed in Section 15162 (i.e., no new or substantially greater significant impacts), the City may properly adopt an addendum to the Certified SEIR.

12.Analysis: According to CEQA Guidelines Section 15164, an Addendum to a previously certified EIR may be used if some changes or additions are necessary, but none of the conditions described in Section 15162 requiring the preparation of a subsequent Negative Declaration or EIR have occurred. The CEQA Guidelines require that a brief explanation be provided to support the findings that no subsequent EIR or Negative Declaration are needed for further discretionary approval. These findings are described below:
1) Required Finding: Substantial changes are not proposed for the project that will require major revisions of the previous EIR due to the involvement of new, significant environmental effects or a substantial increase in the severity of previously identified significant effects.

Substantial changes are not proposed by the Project and Project implementation will not require revisions to the Certified SEIR due to the involvement of new significant environmental effects or a substantial increase in the severity of previously identified significant effects. The Certified SEIR analyzed the direct and physical changes in the environment that would be caused by TOP 2050, focusing on changes to land use associated with the buildout of the proposed land use plan. In addition, all applicable adopted mitigation measures are a condition of Project approval and are incorporated herein by reference. This Addendum provides an analysis of the Project and verification that the Project will not cause environmental impacts such that any of the circumstances identified in State CEQA Guidelines Section 15162 are present.
2) Required Finding: Substantial changes have not occurred with respect to the circumstances under which the project is undertaken, that would require major revisions of the previous Environmental Impact Report due to the involvement of new significant 2272
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environmental effects or a substantial increase in the severity of previously identified significant effects.

Substantial changes have not occurred with respect to the circumstances under which the project was undertaken, that would require major revisions to the Certified SEIR due to the involvement of new significant environmental effects or a substantial increase in the severity of previously identified significant effects. In addition, all applicable adopted mitigation measures are a condition of Project approval and are incorporated herein by reference. This Addendum provides an analysis of the Project and verification that the Project will not cause environmental impacts such that any of the circumstances identified in State CEQA Guidelines Section 15162 are present.
3) Required Finding. No new information has been provided that would indicate that the proposed project would result in one or more significant effects not discussed in the previous EIR.

No new information that was not known and could not have been known with the exercise of reasonable diligence at the time SEIR was certified shows that the proposed Project would result in any new significant effects not previously discussed in the Certified SEIR, that significant effects previously examined will be substantially more severe than shown in the previous EIR, that mitigation measures or alternatives previously found not to be feasible would in fact be feasible and would substantially reduce one or more significant effects on the environment, or that mitigation measures or alternatives that are considerably different from those analyzed in the previous EIR would substantially reduce one or more significant effects on the environment. The Certified SEIR assumed buildout of the site. No proposed changes or revisions to the Certified SEIR are required. In addition, all applicable previously adopted mitigation measures are a condition of Project approval and are incorporated herein by reference. This Addendum provides an analysis of the 2273
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Project and verification that the Project will not cause environmental impacts such that any of the circumstances identified in State CEQA Guidelines Section 15162 are present.

13.Conclusion: The Certified SEIR, as certified by City Council on August 16, 2022, was prepared as a Program EIR in accordance with CEQA, the State CEQA Guidelines, and the City’s Rules for the Implementation of CEQA and in accordance with Section 15121(a) of the State CEQA Guidelines (California Code of Regulations, Title 14, Division 6, Chapter 3). The Certified SEIR considered the direct physical changes and reasonably foreseeable indirect physical changes in the environment that would be caused by TOP 2050. Consequently, the Certified SEIR focused on impacts from changes to land use associated with buildout of the City’s land use plan, and impacts from the resulting population and employment growth in the City. The proposed Project coordinates with the existing uses of the properties and uses within the surrounding areas.

Accordingly, and based on the findings and information contained in the Certified SEIR, the analysis in this document, and CEQA statute and State CEQA Guidelines, including Sections 15164 and 15162, the Project will not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR. 2274
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14.Surrounding Land Uses:

Existing Land Use
General Plan
Designation Zoning Designation Specific Plan Land Use
Site: Vacant, graded land Public School (PS) SP, Specific Plan School North: Vacant, graded land Low Density
Residential (LDR) SP, Specific Plan Single Family Detached/Park South: Single Family
Residential
Low Density
Residential (LDR) SP, Specific Plan Single Family Detached East:

Vacant, graded
land/ Attached
Residential
Medium Density/Low
Density Residential
(MDR/LDR)
SP, Specific Plan Single Family
Detached
West:

Vacant, graded
land/Single Family
Residential
Low Density
Residential (LDR) SP, Specific Plan Single Family Detached

15.Other public agencies whose approval is anticipated include (e.g., permits, financing approval or participation agreement):
• Santa Ana Regional Water Quality Control Board (Issuance of a National Pollutant Discharge Elimination System Permit; Issuance of a Construction General Permit);
• State Water Resources Control Board (Stormwater Pollution Prevention Plan);
• South Coast Air Quality Management District (Issuance of Air Quality permits to construct and operation, if necessary)

16.Have California Native American tribes traditionally and culturally affiliated with the project area requested consultation pursuant to Public Resources Code section 21080.3.1?
☒Yes ☐ No
If “yes”, has consultation begun? ☐ Yes ☐ No ☒ Completed 2275
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ENVIRONMENTAL FACTORS POTENTIALLY AFFECTED
The environmental factors checked below would be potentially affected by this project, involving at least one impact that is a "Potentially Significant Impact" as indicated by the checklist on the following pages.
☐ Aesthetics ☐ Agriculture/Forestry
Resources
☐ Air Quality
☐ Biological Resources ☐ Cultural Resources ☐ Geology / Soils ☐ Greenhouse Gas
Emissions
☐ Hazards & Hazardous
Materials
☐ Hydrology/Water
Quality
☐ Land Use / Planning ☐ Mineral Resources ☐ Noise
☐ Population / Housing ☐ Public Services ☐ Recreation
☐ Transportation ☐ Utilities / Service
Systems
☐ Mandatory Findings
of Significance
☐ Tribal Cultural
Resources
☐ Wildfire ☐ Energy
DETERMINATION (To be completed by the Lead Agency)
On the basis of this initial evaluation, I find that the proposed project will not require any major revisions of the previously certified SEIR due to the involvement of any new significant environmental effects or a substantial increase in the severity of previously identified significant effects, that the proposed Project does not trigger any of the conditions set forth in State CEQA Guidelines section 15162, and that an addendum to the previously certified SEIR is appropriate pursuant to State CEQA Guidelines section 15164.

Signature: Date: Click to enter date
Printed Name: Robert Morales For: City of Ontario
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EVALUATION OF ENVIRONMENTAL IMPACTS
Issues
New
Significant
Impact or
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Changed
Circumstances or New
Info
requiring a
subsequent
EIR
No New
Significant
Impact or
Substantial
Increase in
Severity of
Impacts
Previously
Analyzed
in TOP 2050
SEIR

1. AESTHETICS. Except as provided in Public
Resources Code section 21099, would the
project:
a) Have a substantial adverse effect on a
scenic vista?
☐ ☐ ☐ ☒
b) Substantially damage scenic resources,
including, but not limited to, trees, rock
outcroppings, and historic buildings within
a state scenic highway?
☐ ☐ ☐ ☒
c) In non-urbanized areas, substantially
degrade the existing 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
regulations governing scenic quality?)
☐ ☐ ☐ ☒
d) Create a new source of substantial light or
glare which would adversely affect day or
nighttime views in the area?
☐ ☐ ☐ ☒

2. AGRICULTURE AND FOREST RESOURCES. In
determining whether impacts to agricultural
resources are significant environmental
effects, lead agencies may refer to the
California Agricultural Land Evaluation and Site
Assessment Model (1997) prepared by the
California Dept. of Conservation as an
optional model to use in assessing impacts on
agriculture and farmland. In determining
whether impacts to forest resources, including
timberland, are significant environmental
effects, lead agencies may refer to
information compiled by the California
Department of Forestry and Fire Protection
regarding the state’s inventory of forest land,
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Issues
New
Significant
Impact or
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Changed
Circumstances or New
Info
requiring a
subsequent
EIR
No New
Significant
Impact or
Substantial
Increase in
Severity of
Impacts
Previously
Analyzed
in TOP 2050
SEIR
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 existing zoning for agricultural
use, or a Williamson Act contract?
☐ ☐ ☐ ☒
c) Conflict with existing zoning for, or cause
rezoning of, forest land (as defined in
Public Resources Code section 12220(g)),
timberland (as defined by Public
Resources Code section 4526), or
timberland zoned Timberland Production
(as defined by Government Code section
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 existing
environment which, due to their location
or nature, could result in conversion of
Farmland, to non-agricultural use or
conversion of forest land to non-forest use?
☐ ☐ ☐ ☒

3. AIR QUALITY. Where available, the significance
criteria established by the applicable air
quality management district or air pollution
control district may be relied upon to make the
following determinations. Would the project:
a) Conflict with or obstruct implementation of
the applicable air quality plan?
☐ ☐ ☐ ☒
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Issues
New
Significant
Impact or
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Changed
Circumstances or New
Info
requiring a
subsequent
EIR
No New
Significant
Impact or
Substantial
Increase in
Severity of
Impacts
Previously
Analyzed
in TOP 2050
SEIR
b) Result in a cumulatively considerable net
increase of any criteria pollutant for which
the project region is non-attainment under
an applicable federal or state ambient air
quality standard?
☐ ☐ ☐ ☒
c) Expose sensitive receptors to substantial
pollutant concentrations?
☐ ☐ ☐ ☒
d) Result in other emissions (such as those
leading to odors) adversely affecting a
substantial number of people?
☐ ☐ ☐ ☒

4. BIOLOGICAL RESOURCES. Would the project:
a) Have a substantial adverse effect, either
directly or through habitat modifications,
on any species identified as a candidate,
sensitive, or special status species in local
or regional plans, policies, or regulations, or
by the California Department of Fish and
Game or U.S. Fish and Wildlife Service?
☐ ☐ ☐ ☒
b) Have a substantial adverse effect on any
riparian habitat or other sensitive natural
community identified in local or regional
plans, policies, regulations or by the
California Department of Fish and Game
or U.S. Fish and Wildlife Service?
☐ ☐ ☐ ☒
c) Have a substantial adverse effect on state
or federally protected wetlands (including,
but not limited to, marsh, vernal pool,
coastal, etc.) through direct removal,
filling, hydrological interruption, or other
means?
☐ ☐ ☐ ☒
d) Interfere substantially with the movement
of any native resident or migratory fish or
wildlife species or with established native
resident or migratory wildlife corridors, or
impede the use of native wildlife nursery
sites?
☐ ☐ ☐ ☒
e) Conflict with any local policies or
ordinances protecting biological
☐ ☐ ☐ ☒
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Issues
New
Significant
Impact or
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Changed
Circumstances or New
Info
requiring a
subsequent
EIR
No New
Significant
Impact or
Substantial
Increase in
Severity of
Impacts
Previously
Analyzed
in TOP 2050
SEIR
resources, such as a tree preservation
policy or ordinance?
f) Conflict with the provisions of an adopted
Habitat Conservation Plan, Natural
Community Conservation Plan, or other
approved local, regional, or state habitat
conservation plan?
☐ ☐ ☐ ☒

5. CULTURAL RESOURCES. Would the project:
a) Cause a substantial adverse change in the
significance of a historical resource
pursuant to § 15064.5?
☐ ☐ ☐ ☒
b) Cause a substantial 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?
☐ ☐ ☐ ☒

6. ENERGY. Would the project:
a) Result in potentially significant
environmental impact due to wasteful,
inefficient, or unnecessary consumption of
energy resources, during project
construction or operation?
☐ ☐ ☐ ☒
b) Conflict with or obstruct a state or local
plan for renewable energy or energy
efficiency?
☐ ☐ ☐ ☒

7. GEOLOGY AND SOILS. Would the project:
a) Directly or indirectly cause potential
substantial 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 substantial
evidence of a known fault? Refer to
☐ ☐ ☐ ☒
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Issues
New
Significant
Impact or
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Changed
Circumstances or New
Info
requiring a
subsequent
EIR
No New
Significant
Impact or
Substantial
Increase in
Severity of
Impacts
Previously
Analyzed
in TOP 2050
SEIR
Division of Mines and Geology Special
Publication 42.
ii) Strong seismic ground shaking? ☐ ☐ ☐ ☒
iii) Seismic-related ground failure,
including liquefaction?
☐ ☐ ☐ ☒
iv) Landslides? ☐ ☐ ☐ ☒
b) Result in substantial 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 potentially
result in on- or off-site landslide, lateral
spreading, subsidence, liquefaction or
collapse?
☐ ☐ ☐ ☒
d) Be located on expansive soil, as defined in
Table 18-1-B of the Uniform Building Code,
creating substantial direct or indirect risks
to life or property?
☐ ☐ ☐ ☒
e) Have soils incapable of adequately
supporting the use of septic tanks or
alternative 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?
☐ ☐ ☐ ☒

8. 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
regulation adopted for the purpose of
reducing the emission of greenhouse
gases?
☐ ☐ ☐ ☒
2281
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Issues
New
Significant
Impact or
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Changed
Circumstances or New
Info
requiring a
subsequent
EIR
No New
Significant
Impact or
Substantial
Increase in
Severity of
Impacts
Previously
Analyzed
in TOP 2050
SEIR

9. HAZARDS AND HAZARDOUS MATERIALS. Would
the project:
a) Create a significant hazard to the public or
the environment through the routine
transport, use, or disposal of hazardous
materials?
☐ ☐ ☐ ☒
b) Create a significant hazard to the public or
the environment through reasonably
foreseeable upset and accident
conditions 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 existing or proposed school?
☐ ☐ ☐ ☒
d) Be located on a site which is included on a
list of hazardous materials sites compiled
pursuant to Government Code section
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 implementation of or physically
interfere with an adopted emergency
response plan or emergency evacuation
plan?
☐ ☐ ☐ ☒
g) Expose people or structures, either directly
or indirectly, to a significant risk of loss,
injury or death involving wildland fires?
☐ ☐ ☐ ☒

10. HYDROLOGY AND WATER QUALITY. Would the
project:
2282
Addendum to The Ontario Plan 2050 Supplemental Environmental Impact Report File No(s).: PPA24-0139, PGPA24-004, PSPA24-004, PDEV24-017, PMTT24-008, PDA25-003

Issues
New
Significant
Impact or
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Changed
Circumstances or New
Info
requiring a
subsequent
EIR
No New
Significant
Impact or
Substantial
Increase in
Severity of
Impacts
Previously
Analyzed
in TOP 2050
SEIR
a) Violate any water quality standards or
waste discharge requirements or otherwise
substantially degrade surface or ground
water quality?
☐ ☐ ☐ ☒
b) Substantially decrease groundwater
supplies or interfere substantially with
groundwater recharge such that the
project may impede sustainable
groundwater management of the basin?
☐ ☐ ☐ ☒
c) Substantially alter the existing drainage
pattern of the site or area, including
through the alteration of the course of a
stream or river or through the addition of
impervious surfaces, in a manner which
would:
i) Result in substantial erosion or siltation
on- or off-site;
☐ ☐ ☐ ☒
ii) Substantially increase the rate or
amount of surface runoff in a manner
which would result in flooding on- or offsite;
☐ ☐ ☐ ☒
iii) Create or contribute runoff water
which would exceed the capacity of
existing or planned stormwater
drainage systems or provide substantial
additional sources of polluted runoff; or
☐ ☐ ☐ ☒
d) Impede or redirect flood flows? ☐ ☐ ☐ ☒
e) In flood hazard, tsunami, or seiche zones,
risk release of pollutants due to project
inundation?
☐ ☐ ☐ ☒
f) Conflict with or obstruct implementation of
a water quality control plan or sustainable
groundwater management plan?
☐ ☐ ☐ ☒

11. LAND USE AND PLANNING. Would the project:
a) Physically divide an established
community?
☐ ☐ ☐ ☒
2283
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Issues
New
Significant
Impact or
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Changed
Circumstances or New
Info
requiring a
subsequent
EIR
No New
Significant
Impact or
Substantial
Increase in
Severity of
Impacts
Previously
Analyzed
in TOP 2050
SEIR
b) Cause a significant environmental impact
due to a conflict with any land use plan,
policy, or regulation adopted for the
purpose of avoiding or mitigating an
environmental effect?
☐ ☐ ☐ ☒

12. MINERAL RESOURCES. Would the project:
a) Result in the loss of availability of a known
mineral resource that would be of 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?
☐ ☐ ☐ ☒

13. NOISE. Would the project result in:
a) Generation of a substantial 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) Generation of excessive groundborne
vibration 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?
☐ ☐ ☐ ☒

14. POPULATION AND HOUSING. Would the
project:
a) Induce substantial unplanned population
growth in an area, either directly (for
example, by proposing new homes and
businesses) or indirectly (for example,
through extension of road or other
☐ ☐ ☐ ☒
2284
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Issues
New
Significant
Impact or
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Changed
Circumstances or New
Info
requiring a
subsequent
EIR
No New
Significant
Impact or
Substantial
Increase in
Severity of
Impacts
Previously
Analyzed
in TOP 2050
SEIR
infrastructure)?
b) Displace substantial numbers of existing
people or housing, necessitating the
construction of replacement housing
elsewhere?
☐ ☐ ☐ ☒

15. PUBLIC SERVICES. Would the project:
a) Result in substantial adverse physical
impacts associated with the provision of
new or physically altered governmental
facilities, need for new or physically altered
governmental facilities, the construction of
which could cause significant
environmental impacts, in order to
maintain acceptable service ratios,
response times or other performance
objectives for any of the public services:
i) Fire protection? ☐ ☐ ☐ ☒
ii) Police protection? ☐ ☐ ☐ ☒
iii) Schools? ☐ ☐ ☐ ☒
iv) Parks? ☐ ☐ ☐ ☒
v) Other public facilities? ☐ ☐ ☐ ☒

16. RECREATION.
a) Would the project increase the use of
existing neighborhood and regional parks
or other recreational facilities such that
substantial physical deterioration of the
facility would occur or be accelerated?
☐ ☐ ☐ ☒
b) Does the project include recreational
facilities or require the construction or
expansion of recreational facilities which
have an adverse physical effect on the
environment?
☐ ☐ ☐ ☒

17. TRANSPORTATION. Would the project:
a) Conflict with a program plan, ordinance or ☐ ☐ ☐ ☒
2285
Addendum to The Ontario Plan 2050 Supplemental Environmental Impact Report File No(s).: PPA24-0139, PGPA24-004, PSPA24-004, PDEV24-017, PMTT24-008, PDA25-003

Issues
New
Significant
Impact or
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Changed
Circumstances or New
Info
requiring a
subsequent
EIR
No New
Significant
Impact or
Substantial
Increase in
Severity of
Impacts
Previously
Analyzed
in TOP 2050
SEIR
policy addressing the circulation system,
including transit, roadway, bicycle and
pedestrian facilities?
b) Conflict or be inconsistent with CEQA
Guidelines section 15064.3, subdivision (b)?
☐ ☐ ☐ ☒
c) Substantially increase hazards due to a
geometric design feature (e.g., sharp
curves or dangerous intersections) or
incompatible uses (e.g., farm equipment)?
☐ ☐ ☐ ☒
d) Result in inadequate emergency access? ☐ ☐ ☐ ☒

18. TRIBAL CULTURAL RESOURCES. Would the
project cause a substantial adverse change in
the significance of a tribal cultural resource,
defined in Public Resources Code section
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 Native American tribe, and that is:
a) Listed or eligible for listing in the California
Register of Historical Resources, or in a
local register of historical resources as
defined in Public Resources Code section
5020.1(k), or
☐ ☐ ☐ ☒
b) A resource determined by the lead
agency, in its discretion and supported by
substantial evidence, to be significant
pursuant to criteria set forth in subdivision
(c) of Public Resources Code section
5024.1. In applying the criteria set forth in
subdivision (c) of Public Resources Code
section 5024.1, the lead agency shall
consider the significance of the resource
to a California Native American tribe.
☐ ☐ ☐ ☒

19. UTILITIES AND SERVICE SYSTEMS. Would the
project:
a) Require or result in the relocation or ☐ ☐ ☐ ☒
2286
Addendum to The Ontario Plan 2050 Supplemental Environmental Impact Report File No(s).: PPA24-0139, PGPA24-004, PSPA24-004, PDEV24-017, PMTT24-008, PDA25-003

Issues
New
Significant
Impact or
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Changed
Circumstances or New
Info
requiring a
subsequent
EIR
No New
Significant
Impact or
Substantial
Increase in
Severity of
Impacts
Previously
Analyzed
in TOP 2050
SEIR
construction of new or expanded water,
wastewater treatment or storm water
drainage, electric power, natural gas, or
telecommunications facilities, the
construction or relocation 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 multiple dry years?
☐ ☐ ☐ ☒
c) Result in a determination 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 addition to the
provider's existing 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 attainment of solid
waste reduction goals?
☐ ☐ ☐ ☒
e) Comply with federal, state, and local
management and reduction statutes and
regulations related to solid waste?
☐ ☐ ☐ ☒

20. WILDFIRE. If located in or near state
responsibility areas or lands classified as very
high fire hazard severity zones, would the
project:
a) Substantially impair an adopted
emergency response plan or emergency
evacuation plan?
☐ ☐ ☐ ☒
b) Due to slope, prevailing winds, and other
factors, exacerbate wildfire risks, and
thereby expose project occupants to,
pollutant concentrations from a wildfire or
the uncontrolled spread of a wildfire?
☐ ☐ ☐ ☒
c) Require the installation or maintenance of ☐ ☐ ☐ ☒
2287
Addendum to The Ontario Plan 2050 Supplemental Environmental Impact Report File No(s).: PPA24-0139, PGPA24-004, PSPA24-004, PDEV24-017, PMTT24-008, PDA25-003

Issues
New
Significant
Impact or
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Changed
Circumstances or New
Info
requiring a
subsequent
EIR
No New
Significant
Impact or
Substantial
Increase in
Severity of
Impacts
Previously
Analyzed
in TOP 2050
SEIR
associated infrastructure (such as roads,
fuel breaks, emergency water sources,
power lines or other utilities) 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?
☐ ☐ ☐ ☒

21. MANDATORY FINDINGS OF SIGNIFICANCE.
(State CEQA Guidelines section 15065(a).)
a) Does the project have the potential to
substantially degrade the quality of the
environment, substantially reduce the
habitat of a fish or wildlife species, cause a
fish or wildlife population to drop below
self-sustaining levels, threaten to eliminate
a plant or animal community, substantially
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 cumulatively
considerable? (“Cumulatively
considerable” means that the incremental
effects of a project are considerable when
viewed in connection with the effects of
past projects, the effects of other current
project, and the effects of probable future
projects.)
☐ ☐ ☐ ☒
c) Does the project have environmental
effects which will cause substantial
adverse effects on human beings, either
directly or indirectly?
☐ ☐ ☐ ☒
Note: Authority cited: Public Resources Code sections 21083, 21083.05, 21083.09.

Reference: Gov. Code section 65088.4; Public Resources Code sections 21073, 21074, 21080(c), 21080.1, 21080.3, 2288
Addendum to The Ontario Plan 2050 Supplemental Environmental Impact Report File No(s).: PPA24-0139, PGPA24-004, PSPA24-004, PDEV24-017, PMTT24-008, PDA25-003

Issues
New
Significant
Impact or
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Substantial
Increase in
Severity of
Previously
Identified
Significant
impact
Changed
Circumstances or New
Info
requiring a
subsequent
EIR
No New
Significant
Impact or
Substantial
Increase in
Severity of
Impacts
Previously
Analyzed
in TOP 2050
SEIR
21080.3.1, 21080.3.2, 21082.3, 21083, 21083.3, 21083.5, 21084.2, 21084.3, 21093, 21094, 21095 and 21151; Sundstrom v.

County of Mendocino (1988) 202 Cal.App.3d 296; Leonoff v. Monterey County Board of Supervisors (1990) 222 Cal.App.3d 1337; Eureka Citizens for Responsible Govt. v. City of Eureka (2007) 147 Cal.App.4th 357; Protect the Historic Amador Waterways v. Amador Water Agency (2004) 116 Cal.App.4th 1099, 1109; San Franciscans Upholding the Downtown Plan v. City and County of San Francisco (2002) 102 Cal.App.4th 656. 2289
Addendum to The Ontario Plan 2050 Supplemental Environmental Impact Report File No(s).: PPA24-0139, PGPA24-004, PSPA24-004, PDEV24-017, PMTT24-008, PDA25-003

EXPLANATION OF ISSUES

1. AESTHETICS. Would the project:
a. Have a substantial adverse effect on a scenic vista? Summary of Certified SEIR Finding: The Certified SEIR concluded that increased development under TOP 2050 would occur within the City limits and already urbanized areas of the City. The scale and design of the City under TOP 2050 would not deter views of the San Gabriel Mountains. Therefore, impacts to scenic vistas would be less than significant and would not result in new or a substantial increase in magnitude of impacts compared to the Certified SEIR (Certified SEIR, pp. 5.1-4 – 5.1-10).

Project Impacts: TOP 2050 does not identify scenic vistas within the City. However, the Policy Plan (Policy CD-1.5) requires all major north-south streets be designed and developed to feature views of the San Gabriel Mountains. The Project site is not located along any major north-south streets, as identified in Figure M-01, Roadway Classifications, of the City’s Mobility Element. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
b. Substantially damage scenic resources, including, but not limited to, trees, rock outcroppings and historic buildings within a state scenic highway? Summary of Certified SEIR Finding: The Certified SEIR concluded that there are no State Scenic highways through or in the vicinity of the City. The closest designated State scenic highway is a portion of State Route 142 in Chino Hills, approximately five miles west of the Ontario city limit. Therefore, no impacts to scenic highways would occur and TOP 2050 would not result in new or a substantial increase in 2290
Addendum to The Ontario Plan 2050 Supplemental Environmental Impact Report File No(s).: PPA24-0139, PGPA24-004, PSPA24-004, PDEV24-017, PMTT24-008, PDA25-003

magnitude of impacts compared to the Certified SEIR (Certified SEIR, pp. 5.1-4 –

5.1-10).

Project Impacts: The Project is not located near a scenic highway, nor does the site contain any scenic resources. The Project would not substantially damage scenic resources, including, but not limited to, trees, rock outcroppings and historic buildings within a state scenic highway. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
c. In non-urbanized areas, substantially degrade the existing 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 regulations governing scenic quality?
Summary of Certified SEIR Finding: The Certified SEIR recognizes that buildout of the City would alter the visual character of the City. The Certified SEIR concludes that compliance with the City Municipal Code and applicable TOP 2050 Policies would ensure that potential aesthetics impacts of development anticipated under TOP 2050 would be less than significant (Certified SEIR, pp. 5.1-4 – 5.1-10).

Project Impacts: Final designs of the Project facilities including, but not limited to, the proposed buildings, landscape/hardscape features, and lighting configurations would be required to conform to the Esperanza Specific Plan Development Regulations and Design Guidelines, and applicable provisions of the City Municipal Code. Final designs of all uses would be subject to City review and approval. As such, the Project would not conflict with applicable zoning or other regulations governing scenic quality. Impacts of the Project in these regards would be less than significant. On this basis, when compared to the Certified SEIR 2291
Addendum to The Ontario Plan 2050 Supplemental Environmental Impact Report File No(s).: PPA24-0139, PGPA24-004, PSPA24-004, PDEV24-017, PMTT24-008, PDA25-003

findings, no new or substantially increased aesthetic impacts would result from the Project.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
d. Create a new source of substantial light or glare that would adversely affect day or nighttime views in the area?
Summary of Certified SEIR Finding: The Certified SEIR concluded that TOP 2050 would result in additional sources of light and glare; however, adherence to the design standards of the City of Ontario Development Code would ensure that light and glare from new developments would be minimized and that significant impacts would not occur. Therefore, impacts to light and glare would be less than significant, and TOP 2050 would not result in new or a substantial increase in magnitude of impacts compared to the Certified SEIR (Certified SEIR, pp. 5.1-4 –

5.1-10).

Project Impacts: The Project site is surrounded by existing and/or proposed urban uses. Street lighting is currently located along the entire periphery of the site. New lighting will be introduced to the site as part of the Project. Pursuant to the requirements of the City’s Municipal Code, Project on-site lighting would be shielded, diffused or indirect, to avoid glare to pedestrians or motorists. In addition, lighting fixtures will be selected and located to confine the area of illumination to within the Project site and minimize light spillage.

Furthermore, consistent with the findings of the Certified SEIR, site lighting plans will be subject to review by the Planning Department and Police Department prior to issuance of building permits (pursuant to the City’s Building Security Ordinance).

Therefore, implementation of the Project would not result in a significant source of light or glare that would adversely affect daytime or nighttime views. The Project would not result in any new, increased or substantially different impacts, beyond those previously considered and addressed in the Certified SEIR. 2292
Addendum to The Ontario Plan 2050 Supplemental Environmental Impact Report File No(s).: PPA24-0139, PGPA24-004, PSPA24-004, PDEV24-017, PMTT24-008, PDA25-003

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -

2. AGRICULTURE AND FOREST RESOURCES. In determining whether impacts to agricultural resources are significant environmental effects, lead agencies may refer to the California Agricultural Land Evaluation and Site Assessment Model prepared by the California Department of Conservation as an optional model to use in assessing impacts on agriculture and farmland. In determining whether impacts to forest resources, including timberland, are significant environmental effects, lead agencies may refer to information compiled by the California Department of Forestry and Fire Protection 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 non-agricultural use?
Summary of Certified SEIR Finding: Under TOP 2050, the City of Ontario no longer has land designated for agricultural uses. Because TOP 2050 is the baseline for the Certified SEIR, TOP 2050 would not result in the conversion of Prime Farmland, Unique Farmland, and Farmland of Statewide Importance to nonagricultural uses.

TOP 2050 would therefore have no impact on land zoned for agricultural purposes (Certified SEIR, p. 5.2-12).

Project Impacts: The Project site is not designated as Prime Farmland, Unique Farmland, or Farmland of Statewide Importance (Farmland). According to the California Department of Conservation, the Project site is designated as “Other Land.” This designation is used for properties that are not included in any other mapping category. Vacant and non-agricultural land surrounded on all sides by 2293
Addendum to The Ontario Plan 2050 Supplemental Environmental Impact Report File No(s).: PPA24-0139, PGPA24-004, PSPA24-004, PDEV24-017, PMTT24-008, PDA25-003

urban development is commonly mapped as Other Land (DOC, 2022). As such, the Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
b. Conflict with existing zoning for agricultural use, or a Williamson Act contract?
Summary of Certified SEIR Finding: The Certified SEIR concluded that implementation of the Land Use Plan would not adversely affect agriculturally zoned properties (Certified SEIR, p. 5.2-12).

Implementation of TOP 2050 would affect all active Williamson Act contracts within the City. The Certified SEIR concluded, however, that impacts to Williamson Act contract properties under TOP 2050 would not be greater than, or different than, would result from TOP 2009. On this basis, the Certified SEIR concluded that TOP 2050 impacts to Williamson Act Contract properties would be less than significant (Certified SEIR, p. 5.2-13).

Project Impacts: The Project site is not zoned for agricultural use. The Project site is zoned Specific Plan and would involve a Specific Plan Amendment to change the land use designation from School to MDR 25. The Project’s proposed Specific Plan Amendment would not result in a loss of land zoned for agricultural use.

Furthermore, there is no Williamson Act contract in effect on the Project site.

Therefore, no impacts to agricultural uses are anticipated, nor will there be any conflict with existing Williamson Act contracts. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.
2294
Addendum to The Ontario Plan 2050 Supplemental Environmental Impact Report File No(s).: PPA24-0139, PGPA24-004, PSPA24-004, PDEV24-017, PMTT24-008, PDA25-003

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
c. Conflict with existing zoning for, or cause rezoning of, forest land (as defined in Public Resources Code section 12220(g)), timberland (as defined by Public Resources Code section 4526), or timberland zoned Timberland Production (as defined by Government Code section 51104(g)? Summary of Certified SEIR Finding: There are no City land uses zoned for forest land, timberland, or timberland zoned Timberland Production. There are no properties in the City considered to be forestland. As such, implementation of TOP 2050 would have no impact on land uses zoned for forest land, timberland, or timberland zoned Timberland Production; nor would TOP 2050 result in the loss or conversion of timberland or forest land to non-forest uses (Certified SEIR, p. 5.2- 13).

Project Impacts: The Project site is not zoned for forest land or timberland. As concluded in the Certified SEIR, the City’s Zoning Map does not designate any parcels of land in the Project area for forest land, timberland, or timberland zoned Timberland Production. Therefore, implementation of the Project would not conflict with, or cause the rezoning of, forest land or timberland. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
d. Result in the loss of forest land or conversion of forest land to non-forest use? Summary of Certified SEIR Finding: There are no City land uses zoned for forest land. There are no properties in the City considered to be forest land. As such, 2295
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implementation of TOP 2050 would have no impact on land uses zoned for forest land; nor would TOP 2050 result in the loss or conversion of forest land to non-forest uses (Certified SEIR, p. 5.2-13).

Project Impacts: There is currently no land in the City of Ontario that qualifies as forest land as defined in Public Resources Code section 12220(g). Neither the Policy Plan nor the City’s Zoning Code provide designations for forest land.

Consequently, the Project would not result in the loss or conversion of forest land.

The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
e. Involve other changes in the existing environment, which, due to their location or nature, could individually or cumulatively result in loss of Farmland to non-agricultural use or conversion of forest land to non-forest use?
Summary of Certified SEIR Finding: Under TOP 2050, the City Ontario no longer has land designated for agricultural uses. Because TOP 2050 is the baseline for the Certified SEIR, TOP 2050 would not result in the conversion of Prime Farmland, Unique Farmland, and Farmland of Statewide Importance to nonagricultural uses.

TOP 2050 would therefore have no impact on land zoned for agricultural purposes (Certified SEIR, p. 5.2-12).

Project Impacts: As previously mentioned, the Project site does not include Farmland (defined as Prime Farmland, Unique Farmland, or Farmland of Statewide Importance) or forest land and, therefore, the Project would not result in the conversion of Farmland to non-agricultural use or forest land to non-forest use. The Project would not result in any impacts to agricultural and/or forestry resources. The Project would not result in any new, increased or substantially 2296
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different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation Required:

Certified SEIR Measure(s) Project Applicability
None. -

3. AIR QUALITY. The analysis in this section is based on the following technical analysis:
• Esperanza Specific Plan Amendment Air Quality Assessment (Urban Crossroads, Inc.) March 28, 2025.

This report (Urban Crossroads, 2025a) is provided in its entirety as Appendix C of this Addendum.
a. Conflict with or obstruct implementation of the applicable air quality plan? Summary of Certified SEIR Finding: The Certified EIR evaluated conformance with the South Coast Air Quality Management District (SCAQMD) Air Quality Management Plan (AQMP) based on the following criteria: 1. Whether the project would exceed the assumptions in the AQMP, and 2. Whether the project would result in an increase in the frequency or severity of existing air quality violations, cause, or contribute to new violations, or delay timeline attainment of air quality standards. The Certified SEIR concluded that buildout of TOP 2050 would be consistent with the AQMP under the first criteria. However, air pollutant emissions associated with buildout of TOP 2050 would cumulatively contribute to the nonattainment designations in the South Coast Air Basin (SCAB). Incorporation of Mitigation Measures 3-2 and AQ-1 (see discussion under checklist item b, below) into future development projects for the operation phase would reduce criteria air pollutant emissions associated with buildout of TOP 2050. Additionally, goals and policies in TOP 2050 would promote increased capacity for alternative transportation modes. However, no additional mitigation measures that would reduce impacts below SCAQMD thresholds were identified. Therefore, impacts would remain significant and unavoidable (Certified SEIR, p. 5.3-40). 2297
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Project Impacts: The Project site is located within the SCAB. Currently, State, and federal air quality standards are exceeded in most parts of the SCAB. In response, the SCAQMD has adopted a series of Air Quality Management Plans (AQMPs) to meet the State and federal ambient air quality standards. AQMPs are regularly updated to more effectively reduce emissions, accommodate growth, and to minimize any negative fiscal impacts of air pollution control on the economy. In December 2022, the SCAQMD released the Final 2022 AQMP. The 2022 AQMP continues to evaluate current integrated strategies and control measures to meet the California Ambient Air Quality Standards, as well as explore new and innovative methods to reach its goals. Current AQMP consistency criteria include:

Consistency Criterion No. 1: The Project will not result in an increase in the frequency or severity of existing air quality violations or cause or contribute to new violations or delay the timely attainment of air quality standards or the interim emissions reductions specified in the AQMP.

Consistency Criterion No. 2: The Project will not exceed the assumptions in the AQMP based on the years of Project build-out phase.

The 2022 AQMP assumed buildout of the Project site consistent with existing General Plan designations. Although a General Plan Amendment would be required to accommodate the Project, operational-source emissions would not exceed the applicable SCAQMD regional thresholds for emissions of any criteria pollutant (see Table 3-2, presented subsequently). Additionally, the Project would be subject to all applicable mitigation and would be developed consistent with TOP 2050 goals and policies.

The City adopted a Statement of Overriding Considerations in regard to pollutant emissions associated with buildout of TOP 2050. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.
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Mitigation:

Certified SEIR Measure(s) Project Applicability
None. The Certified SEIR did not
propose specific measures under this
item, but stated that mitigation
measures applied to a development
project’s construction and operational
phases (presented subsequently)
would reduce impacts associated with
consistency with the SCAQMD.

See measures 3-1, 3-2, and AQ-1,
presented subsequently.
b. Result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable federal or state ambient air quality standard?
Summary of Certified SEIR Finding: The Certified SEIR concluded that buildout of TOP 2050 would generate short-term and long-term air pollutant emissions exceeding SCAQMD regional significance thresholds for VOC, CO, NOx, PM10, and PM2.5. These exceedances would cumulatively contribute to the SCAB nonattainment designations for O3, PM10 and PM2.5. Even with the implementation of mitigation measures, nonattainment air quality impacts resulting from buildout of TOP 2050 would be significant and unavoidable (Certified SEIR, pp. 5.3-54 – 5.3- 57).

Project Impacts:

Construction
To analyze the emissions associated with construction, regional Projectgenerated emissions were developed and compared to applicable SCAQMD thresholds. Table 3-1 presents the regional emissions that can be expected from Project construction.
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Table 3-1
Regional Construction Impacts
Source Emissions (lbs/day)
VOC NOX CO SOX PM10 PM2.5
Summer
2026 3.91 34.72 32.28 0.06 23.78 12.01
2027 1.60 11.05 22.06 0.03 2.01 0.73
2028 1.54 10.51 21.48 0.03 1.98 0.69
Winter
2026 3.47 30.11 29.79 0.06 11.93 5.11
2027 1.57 11.12 20.15 0.03 2.01 0.73
2028 1.51 10.54 19.70 0.03 1.98 0.69
2029 29.05 17.78 32.37 0.05 2.70 1.02
Maximum Daily Emissions 29.05 34.72 32.37 0.06 23.78 12.01 SCAQMD Regional Threshold 75 100 550 150 150 55
Threshold Exceeded? NO NO NO NO NO NO
Source: Urban Crossroads, 2025a
As shown above, regional emissions associated with Project construction would not exceed applicable SCAQMD thresholds, and therefore, would not result in a cumulatively considerable net increase of any criteria pollutant beyond that anticipated and evaluated in the Certified SEIR during construction.

Operations
Operational activities associated with the Project would result in emissions of CO, VOCs, NOX, SOX, PM10, and PM2.5. Operational-related emissions are expected from the following primary sources: area source emissions, energy source emissions, and mobile source emissions. The Project-related operational air quality impacts derive primarily from vehicle trips generated by buildout associated with the net increase in residential units.

The SCAQMD has developed regional operational significance thresholds for criteria pollutants, as summarized in Table 3-2. The SCAQMD’s CEQA Air Quality Significance Thresholds (March 2023) indicate that any projects in the SCAB with 2300
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daily emissions that exceed any of the indicated thresholds should be considered as having an individually and cumulatively significant air quality impact.

Table 3-2
SCAQMD Regional Threshold of Significance
Pollutant Operational Regional Thresholds
NOX 55 lbs/day
VOC 55 lbs/day
PM10 150 lbs/day
PM2.5 55 lbs/day
SOX 150 lbs/day
CO 550 lbs/day
Source: Urban Crossroads, 2025a
Table 3-3 compares the emissions associated with the proposed Project and the approved school use against the SCAQMD thresholds presented above.

Table 3-3
Operational Emissions Comparison
Emissions (lbs/day)
VOC NOX CO SOX PM10 PM2.5
Summer
Proposed Project 8.44 7.52 53.35 0.14 11.69 3.22
Approved School Use 6.21 5.76 55.04 0.13 11.43 2.99
Net Emissions 2.24 1.76 -1.68 0.01 0.26 0.23
Threshold 55 55 550 150 150 55
Threshold Exceeded? No No No No No No
Winter
Proposed Project 7.45 7.74 36.28 0.14 11.68 3.22
Approved School Use 5.48 6.15 42.64 0.13 11.42 2.98
Net Emissions 1.97 1.59 -6.37 0.01 0.26 0.23
Threshold 55 55 550 150 150 55
Threshold Exceeded? No No No No No No
Source: Urban Crossroads, 2025a
As shown above, operational-source emissions would not exceed the applicable SCAQMD regional thresholds for emissions of any criteria pollutant. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR. 2301
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Mitigation:

Certified SEIR Measure(s) Project Applicability
MM 3-1 Prior to discretionary
approval by the City of Ontario for
development projects subject to
CEQA (California Environmental
Quality Act) review (i.e., nonexempt
projects), project applicants shall
prepare and submit a technical
assessment evaluating potential
project construction-related air quality
impacts to the City of Ontario Planning
Department for review and approval.

The evaluation shall be prepared in
conformance with South Coast Air
Quality Management District (South
Coast AQMD) methodology for
assessing air quality impacts. If
construction-related criteria air
pollutants are determined to have the
potential to exceed the South Coast
AQMD–adopted thresholds of
significance, City of Ontario Building
Department shall require feasible
mitigation measures to reduce air
quality emissions. Potential measures
shall be incorporated as conditions of
approval for a project and may
include:
• Require fugitive dust control
measures that exceed South Coast
Air Quality Management District’s
Rule 403, such as:
o Requiring use of nontoxic soil
stabilizers to reduce wind
erosion.
o Applying water every four
hours to active soil disturbing
activities.
o Tarping and/or maintaining a
minimum of 24 inches of
Implemented. The Project-specific Air
Quality Impact Analysis is summarized
within this Addendum and provided in
its entirety as Appendix C. Project
construction would not exceed
SCAQMD thresholds; further mitigation
is not required.
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freeboard on trucks hauling
dirt, sand, soil, or other loose
materials.
• Using construction equipment
rated by the United States
Environmental Protection Agency
as having Tier 4 interim or higher
exhaust emission limits.
• Ensuring construction equipment is
properly serviced and maintained
to the manufacturer’s standards.
• Limiting nonessential idling of
construction equipment to no more
than five consecutive minutes.
• Using Super-Compliant VOC paints
for coating of architectural surfaces
whenever possible. A list of SuperCompliant architectural coating manufactures can be found on the
South Coast Air Quality
Management District’s website at:
http://www.aqmd.gov/prdas/broc
hures/Super-Compliant_AIM.pdf.

These identified measures shall be
incorporated into all appropriate
construction documents (e.g.,
construction management plans)
submitted to the City and shall be
verified by the City’s Planning
Department.

MM 3-2 The City of Ontario shall
evaluate new development proposals
within the City and require all
developments to include access or
linkages to alternative modes of
transportation, such as transit stops,
bike paths, and/or pedestrian paths
Applicable. Omnitrans Route 87
currently provides transit service to the
Project area, with a stop located at
the corner of Eucalyptus Avenue and
Hamner Avenue, less than 1,000 feet
from the Project site. The Project would
provide internal driveways and
pedestrian paths that connect to the
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(e.g. sidewalks). existing street and sidewalk network
surrounding the Project site.

AQ-1 Prior to discretionary approval
by the City of Ontario for development
projects subject to CEQA (California
Environmental Quality Act) review (i.e.,
nonexempt projects), project
applicants shall prepare and submit a
technical assessment evaluating
potential project operation-phaserelated air quality impacts to the City of Ontario Planning Department for
review and approval. The evaluation
shall be prepared in conformance
with South Coast Air Quality
Management District (South Coast
AQMD) methodology in assessing air
quality impacts. If operation-related air
pollutants are determined to have the
potential to exceed the South Coast
AQMD–adopted thresholds of
significance, the City of Ontario
Planning Department shall require that
applicants for new development
projects incorporate mitigation
measures to reduce air pollutant
emissions during operational activities.

The identified measures shall be
included as part of the conditions of
approval. Possible mitigation measures
to reduce long-term emissions could
include, but are not limited to the
following:
• For site-specific development
that requires refrigerated vehicles, the
construction documents shall
demonstrate an adequate number of
electrical service connections at
loading docks for plug-in of the
anticipated number of refrigerated
trailers to reduce idling time and
Implemented. The Project-specific Air
Quality Impact Analysis is summarized
within this Addendum and provided in
its entirety as Appendix C. Project
operations would not exceed
SCAQMD thresholds; further mitigation
is not required.
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emissions.
• Applicants for manufacturing
and light industrial uses shall consider
energy storage and combined heat
and power in appropriate applications
to optimize renewable energy
generation systems and avoid peak
energy use.
• Site-specific developments with
truck delivery and loading areas and
truck parking spaces shall include
signage as a reminder to limit idling of
vehicles while parked for
loading/unloading in accordance
with California Air Resources Board
Rule 2845 (13 CCR Chapter 10 sec.
2485).
• Provide changing/shower
facilities as specified in Section
A5.106.4.3 of CALGreen
(Nonresidential Voluntary Measures).
• Provide bicycle parking facilities
per Section A4.106.9 of CALGreen
(Residential Voluntary Measures).
• Provide preferential parking
spaces for low-emitting, fuel-efficient,
and carpool/van vehicles per Section
A5.106.5.1 of CALGreen
(Nonresidential Voluntary Measures).
• Provide facilities to support
electric charging stations per Section
A5.106.5.3 and Section A5.106.8.2 of
CALGreen (Nonresidential Voluntary
Measures; Residential Voluntary
Measures).
• Applicant-provided appliances
shall be Energy Star–certified
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appliances or appliances of
equivalent energy efficiency (e.g.,
dishwashers, refrigerators, clothes
washers, and dryers). Installation of
Energy Star–certified or equivalent
appliances shall be verified by the City
during plan check.
c. Expose sensitive receptors to substantial pollutant concentrations? Summary of Certified SEIR Finding: The Certified SEIR notes that individual development projects within the City would be required to achieve the incremental risk thresholds established by SCAQMD, and on this basis, potential Toxic Air Contaminant (TAC) impacts from individual developments would be less than significant. TOP 2050 Policy ER4-9, New Localized Air Pollution Sources Near Existing Sensitive Receptors, ensures that mobile sources of TACs not covered under South Coast AQMD permits are considered during subsequent project-level environmental review by the City of Ontario. Other air quality mitigation measures implemented under TOP 2050 would further reduce air pollutant emissions, thereby minimizing effects of pollutants at sensitive receptors.

The Certified SEIR nonetheless concludes that buildout of TOP 2050 would generate TACs that could contribute to elevated levels of TAC pollutants in the air basin. On this basis, the Certified SEIR concluded that TOP 2050 TAC emission impacts at sensitive receptors would be cumulatively significant (Certified SEIR, p.

5.3-57).

Project Impacts:

Construction
To analyze Project impacts to vicinity sensitive receptors, the localized emissions associated with Project construction were developed and compared to applicable SCAQMD thresholds. Peak site preparation and grading activities were used for analysis, since this phase represents the maximum localized emissions that would occur. Table 3-4 presents the localized construction emissions of the Project, along with the applicable thresholds. 2306
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Table 3-4
Localized Construction Impacts
Emissions (lbs/day)
NOX CO PM10 PM2.5
Site Preparation
Maximum Daily Emissions 34.61 31.01 7.43 4.31
SCAQMD Threshold 220 1,713 11 7
Threshold Exceeded? No No No No
Grading
Maximum Daily Emissions 29.95 28.67 4.05 2.25
SCAQMD Threshold 237 1,873 13 8
Threshold Exceeded? No No No No
Source: Urban Crossroads, 2025a
As shown above, localized emissions associated with Project construction would not exceed applicable SCAQMD thresholds.

Toxic Air Contaminants
Residential uses proposed by the Project would not result in toxic air contaminants (TACs) during operation. The Certified SEIR, which evaluated regional emissions from mobile sources resulting from implementation of TOP 2050, concluded that the implementation of 2050 would not produce the volume of traffic required to generate a CO hotspot, and CO hotspots impacts would be less than significant.

As identified in Checklist item 17, Traffic, the proposed Project would generate fewer vehicular trips than anticipated and evaluated in the Certified SEIR.

Therefore, the proposed Project would not expose sensitive receptors to substantial localized CO concentrations, consistent with the conclusion of the TOP Final SEIR. Therefore, sensitive receptors would not be exposed to substantial pollutant concentrations as the result of Project operations.

Based on the foregoing, the Project would not expose sensitive receptors near the Project site to significant pollutant concentrations during construction and operation. Therefore, the Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.
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Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
d. Result in other emissions (such as those leading to odors adversely affecting a substantial number of people)?
Summary of Certified SEIR Finding: The Certified SEIR notes that development pursuant to TOP 2050 would be required to comply with SCAQMD Rule 402.

SCAQMD Rule 402 acts to generally control and regulate odors and odor sources, thereby minimizing potential effects of construction-source and operationalsource odors from other than industrial land uses (Certified SEIR, p. 5.3-46).

The Certified SEIR also acknowledges that certain types of industrial land uses (e.g., compost facilities, landfills, solid-waste transfer stations, fiberglass manufacturing facilities, paint/coating operations, asphalt batch manufacturing plants, chemical manufacturing, and food manufacturing facilities) warrant focused odor impact analyses. The City would require site- and developmentspecific analyses to ensure that any odors generated by these types of land uses would not adversely affect a substantial number of people (Certified SEIR, p. 5.3- 46).

Based on the preceding, the Certified SEIR concluded that the potential for TOP 2050 to create or result in odors that would adversely affect a substantial number of people would be less than significant.

Project Impacts: Land uses generally associated with odor complaints include uses such as agricultural uses, wastewater treatment plants, chemical plants, composting operations, refineries, landfills, and dairies. The Project does not propose land uses typically associated with emitting objectionable odors.

Potential odor sources associated with the Project may result from construction equipment exhaust and the application of concrete and architectural coatings during construction activities and the temporary storage of typical solid waste (refuse) associated with the Project’s (long-term operational) uses. Standard 2308
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construction requirements would minimize odor impacts from construction. The construction odor emissions would be temporary, short-term, and intermittent in nature and would cease upon completion of the respective phase of construction and is thus considered less than significant.

Project-generated refuse would be stored in covered containers and removed at regular intervals in compliance with the City’s solid waste regulations. The Project would also be required to comply with SCAQMD Rule 402 to prevent occurrences of public nuisances. Therefore, odors associated with the Project construction and operations would be less than significant. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -

4. BIOLOGICAL RESOURCES. Would the project:
a. Have a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Game or U.S. Fish and Wildlife Service?
Summary of Certified SEIR Finding: The Certified SEIR recognizes that development in accordance with TOP 2050 could impact sensitive species. Projects considered for approval under TOP 2050 would be subject to independent CEQA review to determine whether there is potential habitat on-site for sensitive species. The Certified SEIR did not identify any significant impacts in this regard (Certified SEIR, pp. 5.4-28 – 5.4-34).
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Project Impacts: A General Biological Resources Assessment was conducted for the entire Esperanza Specific Plan area, inclusive of the Project site, as part of the Esperanza DEIR. The Assessment concluded that no natural or native plant communities were present within the Specific Plan area, and only a few scattered remnants of native vegetation remained due to long-standing agricultural uses.

No special-status plant species were identified within the Specific Plan area, nor were any expected to occur due to the overall absence of suitable habitat.

Several special-status wildlife species were either recorded during the Assessment or had the potential to occur within the Specific Plan area. These species included the loggerhead shrike (Lanius ludovicianus), burrowing owl (Athene cunicularia), white-tailed kite (Elanus leucurus), Northern harrier (Circus cyaneus), Ferruginous hawk (Buteo regalis), Golden eagle (Aquila chrysaetos), California horned lark (Eremophila alpestfis actia), and the San Diego black-tailed jackrabbit (Lepus californicus benettii). Impacts to these species, and potential foraging/nesting habitat within the Specific Plan area, were reduced to less than significant through the application of mitigation.

All mitigation measures protecting biological resources required of the Esperanza Specific Plan (see Appendix B) would be implemented by the Project, precluding the Project’s potential to have a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
b. Have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, regulations, or by the California Department of Fish and Game or U.S. Fish and Wildlife Service?
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c. Have a substantial adverse effect on federally protected wetlands as defined by Section 404 of the Clean Water Act (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means?
Summary of Certified SEIR Finding: The Certified SEIR concluded that individual projects subject to CEQA environmental review would be required to determine whether there is potential habitat on-site for sensitive species. The Certified SEIR did not identify any significant impacts in this regard (Certified SEIR, p. 5.4-28).

Project Impacts: The Esperanza Specific Plan DEIR concluded that no riparian or wetlands were located within the Specific Plan area, inclusive of the Project site.

The site is surrounded by roadways, including gutters. No drainage courses or streams exist within the Project site. Therefore, the Project would not result in significant impacts to riparian habitat, wetlands, or other sensitive natural communities. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
d. Interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites?
Summary of Certified SEIR Finding: The Certified SEIR states that no regional wildlife movement corridors have been identified in the City, and most of the City is illsuited for the purposes of wildlife movement. Additionally, compliance with existing policies and regulations ensures impacts in this regard would be maintained at levels that would be less than significant (Certified SEIR, p. 5.4-30). 2311
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Project Impacts: No wildlife corridors or linkages are located on-site. Further, the site is bounded on all sides by roads and/or urban development, diminishing its potential to function as a wildlife movement corridor. Consistent with the conclusion of the Certified SEIR, the Project would not interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors or impede the use of native wildlife nursery sites. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
e. Conflict with any local policies or ordinances protecting biological resources, such as a tree preservation policy or ordinance? f. Conflict with the provisions of an adopted Habitat Conservation Plan (HCP), Natural Community Conservation Plan (NCCP), or other approved local, regional, or state habitat conservation plan?
Summary of Certified SEIR Finding: The Certified SEIR did not identify any conflicts with any local policies or ordinances protecting biological resources, adopted Habitat Conservation Plan, Natural Community Plan, or other approved local, regional, or state habitat conservation plan (Certified SEIR, pp. 5.4-30 – 5.4-31).

Project Impacts: Section 10-2 of the Ontario Municipal Code addresses tree protection, maintenance, and replacement policies for trees within the City’s parkways and rights-of-way. Additionally, the City has published landscape guidelines that must be followed when developing new or existing sites. The Project would be implemented consistent with all applicable guidelines in this regard.
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The Project site is not part of an adopted HCP, NCCP or other approved habitat conservation plan (CDFW, 2019). As a result, no adverse environmental impacts are anticipated. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -

5. CULTURAL RESOURCES. The analysis in this section is based on the following technical analysis:
• Cultural Resources Study for the Eucalyptus and Amherst Avenues Project, City of Ontario, San Bernardino County, California (BFSA Environmental Services) April 1, 2025.

The report (BFSA, 2025a) is provided in its entirety as Appendix D of this Addendum.
a. Cause a substantial adverse change in the significance of a historical resource as defined in Section 15064.5?
Summary of Certified SEIR Finding: Historic resources in the City include historic districts, historic landmarks or points of historical interest, and other buildings, structures, objects, and sites that appear eligible for listing on the National, California, or Local Registers of Historic Places. The Certified SEIR concluded that adoption of TOP 2050 would not itself directly affect any historical structures; however, identified and potential historic structures and sites may be vulnerable as development occurs. Mitigation Measure 5-1 would require historic or potentially historic resources to be evaluated for historic significance through the City’s Development Code tier system. Impacts to historical resources would remain significant and unavoidable (Certified SEIR, pp. 5.5-18 – 5.5-23). 2313
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Project Impacts: No on-site historical resources were identified as part of the Project-specific Cultural Resources Study. The Cultural Resources Study concluded that no further study or mitigation would be required (BFSAa, 2025).

Therefore, the Project would not cause a substantial adverse change in the significance of a historical resource as defined in Section 15064.5, and no impacts would occur. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
5-1 Historic or potentially historic
resources in the City shall be
evaluated for historic significance
through the City’s tier system prior to
the issuance of plan or development
approvals. Pursuant to City’s
Development Code (Chapter 4,
Permits, Actions, and Decisions, and
Chapter 7, Historic Preservation)
mitigation measures for all Tier III
Historic Resources shall include the
following:
a) Each historic resource shall be
fully documented and
cataloged pursuant to Historic
American Building
Survey/Historic American
Engineering Record
(HABS/HAER) standards, to
provide a record of the
resource, including, but not
limited to: [i] the preparation of
site plans, floor plans, exterior
and interior elevations, and
detail drawings of character
defining features (such as
moldings, stairs, etc.); and [ii]
Not Applicable. No historical resources
are located on-site, nor would any
historic resources be affected by the
Project.
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photographs of the resource,
including the exterior, interior,
and interior and exterior
character defining features
(such as moldings, light fixtures,
trim patterns, etc.).
b) A mitigation fee established
pursuant to Section 7.01.030
(Historic Preservation Mitigation
Fee) shall be paid to the City
prior to the issuance of a
demolition permit for Tier III
historic resources. Fees for Tier I
and II historic resources shall be
determined during the
Environmental Impact Report
process. The fees established for
Tier III will be used as a reference
point for establishing fees for Tier
I and II historic resources.
c) A Certificate of Appropriateness
shall not be issued for the
demolition of an historic
resource, either in whole or in
part, until such time that a
demolition permit application
and a replacement structure
has been approved by the City,
and appropriate permits have
been issued for its construction,
unless: [i] a waiver is granted
pursuant to Subsection H
(Replacement Structure Waiver
for Historic Resources Located
within Industrial Zoning Districts)
of Section 4.02.050; [ii] a deferral
of the replacement structure
requirement is granted pursuant
to Subsection G (Replacement
Structure Deferral) of Section

4.02.050; or [iii] demolition is
required pursuant to Section
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7.01.050 (Unsafe or Dangerous
Conditions) of this Development
Code.

In an effort to preserve features and
artifacts from historic resources, a
determination whether items within or
on the resource should be salvaged
must be made by the Planning
Department and may include the
local historical society prior to the
issuance of the demolition permit. The
applicant shall be responsible for the
removal, relocation, storage, and
donation of such items selected for
salvaging. The applicant shall provide
an inventory of salvaged items to the
Planning Department, and shall
include a list of each item name,
description, and dimension (as
necessary), and the location of each
item on a floor plan.
b. Cause a substantial adverse change in the significance of an archaeological resource pursuant to Section 15064.5?
Summary of Certified SEIR Finding: Adoption of TOP 2050 would not of itself directly affect archaeological resources. However, buildout of TOP 2050 land use plan would allow development activities and ground disturbance affecting known and potential areas of archaeological sensitivity. These activities could potentially cause the disturbance of archeological resources. Therefore, future development that would be accommodated by TOP 2050 could potentially unearth previously unrecorded resources; see Mitigation Measure 5-2, below. (Certified SEIR, p. 5.5- 19).

Project Impacts: No cultural resources were identified within the Project site during the Cultural Resources Study. Further, no natural resources associated with archaeological sites, such as natural water sources or bedrock outcroppings are present within the Project site. Due to the prior ground disturbance and the 2316
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absence of identified cultural resources within the Project site vicinity, the potential for any significant resources to be present or impacted by the Project was determined to be minimal. Given that no archaeological sites, features, or artifacts have been identified within or directly adjacent to the Project site, the Cultural Resources Study determined that no potential impacts to cultural resources are anticipated. The Cultural Resources Study concluded that no further archaeological study or mitigation would be required (BFSA, 2025a).

The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
MM 5-2 In areas of documented or
inferred from evident archaeological
and/or paleontological resource
presence, City staff shall require
applicants for development permits to
provide studies to document the
presence/absence of such resources.

On properties where resources are
identified, such studies shall provide a
detailed mitigation plan, including a
monitoring program and recovery
and/or in situ preservation plan, based
on the recommendations of a
qualified cultural preservation expert.

The mitigation plan shall include the
following requirements:
a) Archaeologists and/or
paleontologist shall be retained for the
project and will be on call during
grading and other significant grounddisturbing activities. b) Should any cultural resources be
discovered, no further grading shall
Not Applicable. No archaeological
resources would be affected by the
Project. Please refer to Checklist item
7, Geology and Soils, for a discussion of
Project paleontological resource
impacts and mitigation.
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occur in the area of the discovery until
the Planning Director or designee is
satisfied that adequate provisions are
in place to protect these resources.
c) Unanticipated discoveries shall be
evaluated for significance by a San
Bernardino County Certified
Professional Archaeologist/
Paleontologist. If significance criteria
are met, then the project shall be
required to perform data recovery,
professional identification,
radiocarbon dates, and other special
studies; submit materials to a museum
for permanent curation; and provide a
comprehensive final report including a
catalog with museum numbers.
c. Disturb any human remains, including those interred outside of dedicated cemeteries?
Summary of Certified SEIR Finding: The Certified SEIR concluded that compliance with existing regulations would ensure that the potential for TOP 2050 to disturb any human remains, including those interred outside of formal cemeteries was less than significant (Certified SEIR, p. 5.5-21).

Project Impacts: The Project would be required to comply with all existing regulations, including the California Public Resources Code Section 5097.98, which would provide protection for any human remains discovered during development activities. On this basis, the potential for the Project to result in disturbance of any human remains, including those interred outside of formal cemeteries would be less than significant. When compared to the Certified SEIR findings, no new or substantially increased impacts related to potential disturbance of human remains would result from the Project. 2318
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Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -

6. ENERGY. Would the project:
a. Result in potentially significant environmental impact due to wasteful, inefficient, or unnecessary consumption of energy resources, during project construction or operation?
Summary of Certified SEIR Finding: The Certified SEIR concluded that regulatory compliance under TOP 2050 buildout conditions would promote building energy efficiency and vehicle fuel efficiency and reduce building energy demand and transportation-related fuel usage. Additionally, TOP 2050 includes policies related to land use and transportation planning and design, energy efficiency, public and active transit, and renewable energy generation that would contribute to enhanced building and transportation-related energy efficiencies and thereby reduce demands on nonrenewable sources of energy. Implementation of TOP 2050 Policies, energy efficiency and conservation measures articulated in the Community Climate Action Plan (CCAP), and compliance with regulatory requirements would ensure that energy consumption resulting from TOP 2050 buildout would not be inefficient, wasteful, or unnecessary. On this basis, the potential for TOP 2050 to result in a potentially significant environmental impact due to wasteful, inefficient, or unnecessary consumption of energy resources would be less than significant (Certified SEIR, pp. 5.6-9 – 5.6-12).

Project Impacts: The Project would be implemented consistent with all applicable regulations in this regard, including applicable efficiency/conservation provisions of the CCAP and applicable CCAP updates. Additionally, the Project would adhere to all applicable TOP 2050 policies related to land use and transportation planning and design, energy efficiency, public and active transit, and renewable energy generation that would contribute to enhanced building and transportation-related energy efficiencies and thereby reduce demands on nonrenewable sources of energy. Based on the preceding, the Project would not 2319
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result in or cause wasteful, inefficient, and unnecessary consumption of energy.

When compared to impacts addressed in the Certified SEIR, no new or substantially increased energy impacts would occur under the Project.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
b. Conflict with or obstruct a state or local plan for renewable energy or energy efficiency?
Summary of Certified SEIR Finding: The Certified SEIR notes that TOP 2050 would comply with applicable provisions of the California Renewables Portfolio Standard Program (RPS); and current and future iterations of CALGreen.

Additionally TOP 2050 includes policies supporting statewide goals to transition the electricity grid to renewable sources. Mandated compliance with the CCAP and its updates would also be required for all new development under TOP 2050. On this basis, the Certified SEIR concluded that the potential for TOP 2050 to conflict with or obstruct a state or local plan for renewable energy or energy efficiency would be less than significant (Certified SEIR, pp. 5.6-13, 5.6-14).

Project Impacts: The Project would be required to comply with incumbent Building Energy Efficiency Standards contained in the California Code of Regulations (CCR), Title 24, Part 6, Energy Efficiency Standards, including applicable CALGreen provisions. CALGreen supports the goals of the State’s greenhouse gas reduction and building energy efficiency programs. The Project would also be required to implement applicable energy efficiency/conservation measures of the CCAP and its updates. Based on the preceding, the Project would not conflict with or obstruct a state or local plan for renewable energy or energy efficiency.
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Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -

7. GEOLOGY & SOILS. The following discussions are based primarily on information presented in the following analyses:
• Geotechnical Evaluation of Mass Graded Site and Grading Plan Review of Proposed 10-Acre “Esperanza Townhomes” Residential Development, Buildings 1 through 28, Tentative Tract No. 20730, located North of Eucalyptus & Amherst Avenues, City of Ontario, County of San Bernardino, California (LGC Geotechnical, Inc.) April 18, 2025.
• Paleontological Assessment for the Eucalyptus and Amherst Avenues Project, City Of Ontario, San Bernardino County, California (BFSA Environmental Services) April 1, 2025.

These reports are presented as Appendix E and F, respectively. a. Expose people or structures to potential substantial adverse effects, including the risk of loss, injury or death involving:
i. Rupture of a known earthquake fault, as delineated on the most recent AlquistPriolo Earthquake Fault Zoning Map issued by the State Geologist for the area or based on other substantial evidence of a known fault? Refer to Division of Mines and Geology Special Publication 42.

Summary of Certified SEIR Finding: The Certified SEIR concluded that the City of Ontario is not within any Alquist-Priolo Earthquake Fault Zone. Therefore, impacts would be less than significant, and TOP 2050 would not result in new or a substantial increase in magnitude of impacts compared to the Certified SEIR (Certified SEIR, pp. 5.7-18 – 5.7-19).
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Project Impacts: Ground rupture is the visible offset of the ground surface when an earthquake rupture along a fault affects the Earth’s surface. Southern California, including the City of Ontario, is subject to the effects of seismic activity due to the active faults that traverse the area. Active faults are defined as those that have experienced surface displacement within Holocene time (approximately the last 11,000 years) and/or are in a State-designated AlquistPriolo Earthquake Fault Zone. The Project site is not located with an Alquist-Priolo Earthquake Fault Zone; no known active faults traverse the Project site. The Geotechnical Evaluation concluded that the possibility of damage due to ground rupture is considered low since no active faults are known to cross the site (LGC Geotechnical, 2025). The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
ii. Strong seismic ground shaking?
Summary of Certified SEIR Finding: The Certified SEIR concluded that projects considered for approval under TOP 2050 would be required to comply with seismic safety provisions of the CBC (Title 24, Part 2 of the California Code of Regulations). Such compliance would reduce hazards arising from ground shaking to less than significant. Therefore, impacts would be less than significant, and TOP 2050 would not result in new or a substantial increase in magnitude of impacts compared to the Certified SEIR (Certified SEIR, pp. 5.7-18 – 5.7-19).

Project Impacts: Southern California is a seismically active area and properties in the City of Ontario, including the Project site, are subject to periodic ground shaking and other effects from earthquake activity along nearby regional faults.

The Project site is not at an increased risk relative to the surrounding areas. 2322
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Ontario Municipal Code Section 1803.2 requires a geotechnical investigation to evaluate soil classification, slope stability, soil strength, position and adequacy of load-bearing soils, the effect of moisture variation on soil-bearing capacity, compressibility, liquefaction, and expansiveness, as necessary, determined by the City building official. To this end, the Geotechnical Evaluation includes sitespecific recommendations that would be implemented during grading and earthwork operations at the Project site. The geotechnical recommendations would provide adequate protection for the proposed development to the extent required to reduce seismic risk to an “acceptable level,” as defined by the California Code of Regulations.

Additionally, the City requires compliance with the CBC through Title 8, Chapter 1, Section 8-1.01 of the Ontario Municipal Code. The CBC contains provisions for earthquake safety based on factors including occupancy type, the types of soil and rock on-site, and the probable strength of ground motion.

As structures would be designed to meet or exceed CBC standards for earthquake resistance, development of the Project would not create significant impacts related to seismic ground shaking. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
iii. Seismic-related ground failure, including liquefaction? Summary of Certified SEIR Finding: The Certified SEIR concluded that there is currently no potential for liquefaction based on groundwater levels throughout the City being greater than 50 feet below ground surface. Therefore, no impact would occur (Certified SEIR, pp. 5.7-18 – 5.7-19).

Project Impacts: Liquefaction occurs when three general conditions coexist: 1) shallow groundwater, 2) low-density non-cohesive (granular) soils and 3) high2323 Addendum to The Ontario Plan 2050 Supplemental Environmental Impact Report File No(s).: PPA24-0139, PGPA24-004, PSPA24-004, PDEV24-017, PMTT24-008, PDA25-003

intensity ground motion. Groundwater at the Project site is estimated to be at a depth of approximately 120 to 130 feet below ground surface based on available water well data. As such, the Geotechnical Evaluation concluded that the onsite soils are generally not susceptible to liquefaction due to a lack of groundwater and the relatively dense native soils in the upper 50 feet, and liquefaction potential is considered very low (LGC Geotechnical, 2025).Therefore, consistent with the findings in the Certified SEIR, the Project does not have the potential to expose people or structures to significant seismic-related liquefaction.

The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
iv. Landslides?
Summary of Certified SEIR Finding: The Certified SEIR did not identify any specific constraints regarding landslides (Certified SEIR, pp. 5.7-20 – 5.7-21).

Project Impacts: The Project site and surrounding area are generally flat with no significant slopes. Additionally, the Esperanza Specific Plan DEIR concluded that no significant landslide risk exists within the Specific Plan area. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
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b. Result in substantial soil erosion or the loss of topsoil? Summary of Certified SEIR Finding: The Certified SEIR concluded that the young alluvial sediment and wind-blown sand underlying the City are generally granular, poorly consolidated, and very susceptible to erosion. However, compliance with the CBC and review of grading plans for individual projects by the City Engineer would ensure no significant impacts would occur. In addition, construction activities on project sites larger than one acre are required to prepare a Stormwater Pollution Prevention Plan (SWPPP) that details best management practices (BMPs) to reduce the potential for erosion during construction activities.

Furthermore, TOP 2050 includes policies addressing erosion and loss of topsoil.

Therefore, impacts would be less than significant, and TOP 2050 would not result in new or a substantial increase in magnitude of impacts compared to the Certified SEIR (Certified SEIR, pp. 5.7-19 – 5.7-20).

Project Impacts: The State Water Resources Control Board (SWRCB) Order No. 2009-0009-DWQ (General Construction Permit) contains water quality standards and stormwater discharge requirements that apply to construction projects of one acre or more. The General Construction Permit was issued pursuant to the National Pollutant Discharge Elimination System (NPDES) regulations for implementing part of the federal Clean Water Act. The General Construction Permit requires preparation of a SWPPP that identifies the sources of pollution that may affect the quality of stormwater discharges and describes and ensures the implementation of BMPs to reduce the pollutants, including silt and soil, in construction stormwater discharges.

The Project would be required to comply with the NPDES permit by preparing and implementing a SWPPP specifying BMPs for minimizing pollution of stormwater with soil and sediment during Project construction.

Implementation of site-specific BMPs, as well as mandatory compliance with the recommendations set forth in the Geotechnical Evaluation, would reduce, prevent, or minimize soil erosion from Project-related demolition, site preparation and grading, and construction activities. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.
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Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
c. Be located on a geologic unit or soil that is unstable, or that would become unstable as a result of the project, and potentially result in on- or off-site landslide, lateral spreading, subsidence, liquefaction or collapse? Summary of Certified SEIR Finding: The Certified SEIR concluded that the thick alluvial deposits comprising the Chino Subbasin may be susceptible to compaction, with resulting subsidence at the surface, in the event of rapid groundwater withdrawal. Projects considered for approval under TOP 2050 could expose structures or persons to potentially significant hazards from ground subsidence. However, compliance with the CBC and review of grading plans for individual projects by the City Engineer would ensure no significant impacts would occur.

Additionally, the young sediments underlying the City are generally dry and loose in the upper few feet, and therefore are susceptible to compression. Much of the Ontario Ranch has been intensively farmed and is especially susceptible to compression. Developments approved pursuant to TOP 2050 could expose persons or structures to potentially significant hazards from compressible soils.

However, compliance with the CBC and review of grading plans for individual projects by the City Engineer would ensure no significant impacts would occur.

Therefore, impacts would be less than significant, and TOP 2050 would not result in new or a substantial increase in magnitude of impacts compared to the Certified SEIR. (Certified SEIR, pp. 5.7-20 – 5.7-21).

Project Impacts: The Project Geotechnical Evaluation provides recommendations that would ensure the Project would not be adversely affected by any unstable soils that may be encountered during the course of Project development. The Evaluation concludes that the Project is feasible from a geotechnical standpoint, provided the recommendations are undertaken (LGC Geotechnical, 2025).

Additionally, the City requires compliance with the CBC through Title 8, Chapter 2326
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1, Section 8-1.01 of the Ontario Municipal Code. Mandatory compliance with the recommendations of the Geotechnical Evaluation and CBC requirements, as well as review of grading plans by the City Engineer would reduce, prevent, or minimize unstable soil conditions that may be present at the site. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
d. Be located on expansive soil, as defined in Table 18-1-B of the Uniform Building Code (1994), creating substantial risks to life or property? Summary of Certified SEIR Finding: The Certified SEIR concluded that expansive soils are likely in the southern parts of the City, where there are silts, sandy silts, and silty clays. Projects in the southern part of the City under TOP 2050 could expose persons or structures to potentially significant hazards from expansive soils.

However, compliance with the CBC and review of grading plans for individual projects by the City Engineer would ensure no significant impacts would occur.

Therefore, impacts related to expansive soils would be less than significant and TOP 2050 would not result in new or a substantial increase in magnitude of impacts compared to the Certified SEIR (Certified SEIR, p. 5.7-21).

Project Impacts: Expansive soils are defined as soils possessing clay particles that react to moisture changes by shrinking or swelling. Based on the results of the expansion index testing presented in the Project Geotechnical Evaluation, on-site soils are anticipated to have a “very low” expansion potential (LGC Geotechnical, 2025). As such, the Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.
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Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
e. Have soils incapable of adequately supporting the use of septic tanks or alternative wastewater disposal systems where sewers are not available for the disposal of wastewater?
Summary of Certified SEIR Finding: Wastewater generated by new development pursuant to buildout of TOP 2050 would be conveyed to and treated at wastewater treatment facilities owned and operated by the Inland Empire Utilities Agency (Regional Plant No. 1 in the City of Ontario and Regional Plant No. 5 in the City of Chino).

The use of septic tanks for new development would be restricted to areas not “in practical proximity existing sewer mains . . .” (Certified SEIR, p. 5.7-22).

Based on the preceding, the Certified SEIR concluded that TOP 2050 would not result in adverse impacts related to use of septic tanks or alternative wastewater disposal systems and ability of soils to accept these systems.

Project Impacts: No septic tanks will be used as part of the proposed Project. The Project would connect to the existing wastewater disposal system. Accordingly, no impact would occur. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
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f. Directly or indirectly destroy a unique paleontological resource or site or unique geologic feature?
Summary of Certified SEIR Finding: The Certified SEIR concluded that the City is underlain by deposits of Quaternary and upper-Pleistocene sediments deposited during Pliocene and early Pleistocene time. Quaternary Older Alluvial sediments may contain significant, nonrenewable, paleontological resources and are therefore considered to have high sensitivity. Older Pleistocene alluvial sediments can yield fossil remains, often found at depths of 10 feet or more below existing ground surface. As a result, the possibility of finding additional paleontological resources within City boundaries is moderate to high at depths of 10 feet or more below ground surface. Therefore, future development that would be accommodated by TOP 2050 could potentially unearth previously unrecorded resources. Mitigation Measure 5-2 requires that in the event of an unanticipated discovery of paleontological resources during grading and excavation of the site, a qualified paleontologist would assess the find and develop a course of action to preserve the find. With application of mitigation, the Certified SEIR concluded that TOP 2050 impacts to paleontological resources would be less than significant (Certified SEIR, pp. 5.7-22 – 5.7-25).

Project Impacts: The Paleontological Assessment identified potentially fossiliferous late Pleistocene alluvial wash or fan deposits at a depth below the Project site.

The occurrence of terrestrial vertebrate fossils at shallow depths from Pleistocene alluvial fan sediments across the Inland Empire is well documented. Due to the high paleontological sensitivity rating typically assigned to Pleistocene alluvial fan sediments, the Paleontological Assessment concluded that paleontological monitoring should be implemented during mass grading and excavation activities in undisturbed Pleistocene alluvial fan sediments, as required by Mitigation Measure 7-1, below.

With the incorporation of Mitigation Measure 7-1, the Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.
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Mitigation:

Certified SEIR Measure(s) Project Applicability
MM 5-2 In areas of documented or
inferred from evident archaeological
and/or paleontological resource
presence, City staff shall require
applicants for development permits to
provide studies to document the
presence/absence of such resources.

On properties where resources are
identified, such studies shall provide a
detailed mitigation plan, including a
monitoring program and recovery
and/or in situ preservation plan, based
on the recommendations of a
qualified cultural preservation expert.

The mitigation plan shall include the
following requirements:
a) Archaeologists and/or
paleontologist shall be retained for the
project and will be on call during
grading and other significant grounddisturbing activities. b) Should any cultural resources be
discovered, no further grading shall
occur in the area of the discovery until
the Planning Director or designee is
satisfied that adequate provisions are
in place to protect these resources.
c) Unanticipated discoveries shall be
evaluated for significance by a San
Bernardino County Certified
Professional Archaeologist/
Paleontologist. If significance criteria
are met, then the project shall be
required to perform data recovery,
professional identification,
radiocarbon dates, and other special
studies; submit materials to a museum
Pursuant to Certified SEIR MM 5-2, and
consistent with the recommendations
of the Project-specific Paleontological
Resources Assessment, the following
Project-specific mitigation is required
(and negates the applicability of MM
5-2):
7-1 A Paleontological Resources
Impact Mitigation Program (PRIMP)
shall be prepared, in accordance with
TOP Certified SEIR MM 5-2. The PRIMP
shall be approved by the City Planning
Department prior to the issuance of a
grading permit. Additionally, full-time
paleontological monitoring starting at
a depth of four feet below the surface
during earth disturbance activities shall
be conducted. A proposed
paleontological monitoring plan is
presented within the report titled
Paleontological Assessment for the
Eucalyptus and Amherst Avenues
Project, City Of Ontario, San
Bernardino County, California (BFSA
Environmental Services) April 1, 2025.
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for permanent curation; and provide a
comprehensive final report including a
catalog with museum numbers.

8. GREENHOUSE GAS EMISSIONS. Would the project:

Information presented within the section is summarized from:
• Esperanza Specific Plan Amendment Greenhouse Gas Assessment (Urban Crossroads, Inc.) March 28, 2025.

The Project-specific Greenhouse Gas Assessment (Urban Crossroads, 2025b) is presented in its entirety as Appendix G to this Addendum. 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 regulation adopted for the purpose of reducing the emissions of greenhouse gases?
Summary of Certified SEIR Finding: The Certified SEIR substantiates that TOP 2050 would yield a net decrease in GHG emissions when compared to the previous General Plan (TOP 2009) GHG emissions forecasts. Further, under TOP 2050 and the Community Climate Action Plan (CCAP), the City would achieve State emissions reductions targets and would progress toward attainment of the State’s carbon neutrality goals. On this basis, the Certified SEIR concluded that the potential for TOP 2050 to generate greenhouse gas emissions, either directly or indirectly, that may have an adverse impact on the environment would be less than significant (Certified SEIR, pp. 5.8-25, 5.8-26).

Project Impacts: The Project’s annual GHG emissions are summarized in Table 8- 1, Project GHG Emissions.
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Table 8-1
Project GHG Emissions
Source
Emissions (lbs/day)
CO2 CH4 N2O
Refrigera
nts
Total CO2e
Annual construction-related
emissions amortized over 30
years

50.28 1.79E-03 1.40E-03 2.30E-02 50.77
Mobile Source 1,800.46 0.07 0.08 2.09 1,828.80
Area Source 41.21 0.00 0.00 0.00 41.26
Energy Source 260.76 0.02 0.00 0.00 261.84
Water Source 10.91 0.22 0.01 0.00 17.97
Waste Source 10.62 1.06 0.00 0.00 37.17
Refrigerants Source 0.00 0.00 0.00 0.18 0.18
Total CO2e (All Sources) 2,238.00
Source: Urban Crossroads, 2025b
As shown in Table 8-1, the Project will result in total GHG emissions of approximately 2,238.00 MTCO2e/yr.

There are currently no published Statewide thresholds of significance for measuring the impact of GHG emissions generated by a proposed project. CEQA Guidelines § 15064.7(b) indicates “each public agency is encouraged to develop and publish thresholds of significance that the agency uses in the determination of the significance of environmental effects.” To this end, the City’s 2022 CCAP contains guidance on the City of Ontario’s GHG Inventory reduction goals, policies, guidelines, and implementation programs.

The CCAP contains Screening Tables which assign points for each option incorporated into a project as mitigation or a project design feature. The point values correspond to the minimum emissions reduction expected from each feature. The menu of features allows flexibility and options for how development projects can implement the GHG reduction measures. Projects that achieve at least 100 points per applicable Screening Table will be consistent with the reduction quantities consistent with the CCAP. Consistent with CEQA Guidelines, such projects would be determined to have a less than significant individual and cumulative impact for GHG emissions.
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As presented previously in the Project Description (and required by the Projectspecific Greenhouse Gas Assessment), the Project includes certain design features aimed at reducing GHG emissions. Table 8-2 lists the Project features along with the assigned points from the Ontario CCAP.

Table 8-2
Project Design GHG-Reduction Features
Feature CCAP Points
Building Electrification
Electric Space Heater 6
Electric Water Heater 8
Electric Stove 5
Electric Dryer 1
Electric Pool Heater 1
Electric Spa Heater 1
Lack of Natural Gas Infrastructure 10
Vehicle Electrification
Installation of Level 2 EV or higher charging
stations at a rate of 30% or more of required
vehicle spaces.
30 Waste Diversion
Storage and collection of green waste,
organic waste, and recyclables.
33 Water Conservation
Water efficient showerheads and faucets 1
Outdoor landscaping consists of drought
tolerant, low maintenance plants with a drip
irrigation or weather-based controller sprinkler
system.
4 Total Points 100
Source: City of Ontario; Project plans.

As demonstrated above, the Project would achieve the required points for consistency with the reduction quantities presented in the CCAP. As such, the Project would have a less than significant individual and cumulative impact for GHG emissions. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.
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Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -

9. HAZARDS & HAZARDOUS MATERIALS.

Project site information presented in the following discussions is summarized from:
• Phase I Environmental Site Assessment Report, 10.02 Acre Site at Northeast Corner of Amherst and Eucalyptus Avenues, Ontario, California 91761 (SCS Engineers) March 14, 2025.

The Phase I Environmental Site Assessment (ESA) is provided as Addendum Appendix H.
a. Create a significant hazard to the public or the environment through the routine transport, use or disposal of hazardous materials? b. Create a significant hazard to the public or the environment through reasonably foreseeable upset and accident conditions involving the release of hazardous materials into the environment?
Summary of Certified SEIR Finding: The Certified SEIR determined that buildout in accordance with TOP 2050 would involve the transport, use, and/or disposal of hazardous materials. However, federal and State regulations, City ordinances, and TOP 2050 Policies would appropriately control handling of hazardous substances to reduce potential releases; exposure; and risks of transporting, storing, treating, and disposing of hazardous materials and wastes. On this basis, the Certified SEIR concluded that the potential for TOP 2050 to result in adverse impacts related to transport, use, and/or disposal of hazardous materials; creation of significant hazards, or result in hazardous emissions affecting schools, would be less than significant (Certified SEIR, pp. 5.1-4 – 5.1-10). 2334
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Project Impacts:

Historical Uses of the Project Site
According to the Phase I ESA prepared for the Project site, the site was historically used for agricultural purposes from approximately 1902 through 2012. Around 2016, grading activities were first visible on the eastern portion of the site, associated with activities on the adjoining site to the east. Following 2016, much more extensive grading occurred and in 2020, hundreds of soil stockpiles were placed on the central and northern portions of the site. The appearance of the stockpiles coincided with the grading and paving of the adjoining streets, it is likely that the soil was from sites with similar history (undeveloped and/or agricultural land). Further grading occurred in 2021, which likely resulted in the export or blending of that that stockpiled soil.

Current Conditions
The site is currently a vacant, undeveloped lot. A chain-link fence surrounds the site with gate access in the northeastern corner. The site is covered in low, grassy vegetation and bare soil, with small amounts of wind-blown trash observed on the outer edges of the Property (against the fence).

Regulatory database information did not identify known or suspected contamination sites in the area surrounding the Project site. No evidence of hazardous materials was noted on-site; and the Phase I determined that it was unlikely the site had been affected by activities or releases of hazardous substances from surrounding properties.
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The Phase I concluded that no recognized environmental conditions, controlled recognized environmental conditions, or significant data gaps in connection with the site exist, and no further investigation is warranted (SCS, 2025).

Project Construction
During the normal course of construction and operation activities, there would be limited transport of potentially hazardous materials (e.g., gasoline, diesel fuel, paints, solvents, fertilizer, etc.) to and from the Project site. However, as presented within the Certified SEIR, the Project would be required to comply with all City and County Hazardous Materials Management Plans and regulations addressing transport, use, storage and disposal of these materials. The Project does not propose or require uses or activities that would result in atypical transportation, use, storage, or disposal of hazardous or potentially hazardous materials not addressed under current regulations and policies.

Project Operation
The Project would not result in or cause exposure(s) to hazards or potentially hazardous conditions. That is, uses proposed by the Project are not considered hazardous. Nor does the Project propose or require facilities or operations involving inherent substantial hazards.

Consistent with the findings of the Certified SEIR, with mandatory compliance City and County Hazardous Materials regulations, potential hazardous materials impacts associated with the Project is not expected to pose a significant hazard to the public or environment through the routine transport, use, or disposal of hazardous materials, nor would the Project increase the potential for accident operations which could result in the release of hazardous materials into the environment. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.
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Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
c. Emit hazardous emissions or handle hazardous or acutely hazardous materials, substances or waste within one-quarter mile of an existing or proposed school?
Summary of Certified SEIR Finding: The Certified SEIR determined that buildout in accordance with TOP 2050 would involve the transport, use, and/or disposal of hazardous materials. However, federal and state regulations, City ordinances, and TOP 2050 Policies would appropriately control handling of hazardous substances to reduce potential releases; exposure; and risks of transporting, storing, treating, and disposing of hazardous materials and wastes. On this basis, the Certified SEIR concluded that the potential for TOP 2050 to result in adverse impacts related to transport, use, and/or disposal of hazardous materials; creation of significant hazards, or result in hazardous emissions affecting schools, would be less-than-significant (Certified SEIR, pp. 5.1-4 – 5.1-10).

Project Impacts: The Project site is not located within one quarter mile of an existing or proposed school. The closest school to the Project site is Colony High School, located approximately 1.5 miles to the north. The Project does not propose or require uses that would handle hazardous or acutely hazardous materials, substances, or waste. Implementation of the Project would not have the potential to emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within one quarter mile of an existing or proposed school. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
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d. Be located on a site which is included on a list of hazardous materials sites compiled pursuant to Government Code Section 65962.5 and, as a result, would it create a significant hazard to the public or the environment? Summary of Certified SEIR Finding: Development in accordance with TOP 2050 would involve redevelopment and reuse of some sites listed as hazardous materials sites on environmental databases. The environmental databases document the presence of hazardous materials on those sites, but do not document hazardous releases. Redevelopment of the affected sites could potentially expose future residents and workers to hazards from known hazardous materials releases on and near the sites. Should environmental database listed sites be proposed for development, site assessments for hazardous materials and remediation of hazardous materials releases would be required in accordance with TOP 2050 Policies, federal, state, and local regulations. On this basis, the Certified SEIR concluded that the potential for development pursuant to TOP 2050 to be located on hazardous materials sites, and thereby create adverse hazard impacts affecting the public or environment would be less than significant (Certified SEIR, pp. 5.9-38, 5.9-39).

Project Impacts: A records review conducted as part of the Phase I Environmental Site Assessment did not identify the site as a hazardous material site pursuant to Government Code Section 65962.5. Additionally, no adjacent sites were identified as potentially affecting the Project site (SCS, 2025). Therefore, the Project would not create a hazard to the public or the environment and no impact is anticipated. When compared to the Certified SEIR findings, no new or substantially increased impacts related to development affecting Government Code Section 65962.5-listed sites would result from the Project.

Mitigation:

Certified SEIR Measure(s) Project Applicability
None. -
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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?
Summary of Certified SEIR Finding: Ontario International Airport (ONT), as well as a small portion of the Chino Airport property, is located within the City of Ontario.

The Certified SEIR determined that TOP 2050 Policies and established processes for consistency reviews of new development with the appropriate Airport Land Use Compatibility Plan (ALUCP) would be sufficient to prevent significant impacts (Certified SEIR, p. 5.8-27).

Project Impacts: The Project site is located approximately four miles south of the Ontario International Airport (ONT). The ONT Airport Land Use Compatibility Plan (ALUCP) was adopted by Ontario City Council on April 19, 2011 (amended 2018) to promote compatibility between the airport and the land uses that surround it.

The Project site is located within the area subject to provisions of The ONT ALUCP, which defines the ONT Airport Influence Area (AIA) as an area in which current and future airport-related noise, overflight, safety, and airspace protection factors may significantly affect land uses or necessitate restriction on those uses.

The Project site is located outside the ONT safety zones (see: TOP 2050 Policy Plan Figure LU-06, Airport Safety Zones & Influence Areas). As with the development anticipated under TOP 2050, and evaluated in the Certified SEIR, the Project would comply with all requirements set forth within the ALUCP. Based on the preceding, the potential for the Project to result in airport-related safety hazard impacts would be less than significant.

The Project site is located approximately 2.5 miles east of the Chino Airport (CNO).

The Project site is located outside the CNO airport influence area and airport safety zones. At this distance, airport hazards from CNO would be less than significant.

The Project would not result in a safety hazard for people residing or working in the Project area. The Project would not result in any new, increased or substantially different impacts, other than those previously considered and addressed in the Certified SEIR.
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