Corona City Council
August 5, 2026

June 2026 | EIR Addendum
State Clearinghouse No. 2018081039

CITY PARK REVITALIZATION PROJECT EIR

ADDENDUM
City of Corona
Prepared for:

City of Corona
Contact: Rachel McLure, CIP Supervisor
400 South Vicentia Avenue
Corona, California 92882
951.736.2400
Prepared by:

PlaceWorks
Contact: Malia Durand, Principal
Emma Haines, Associate
3 MacArthur Place, Suite 1100
Santa Ana, California 92707
714.966.9220
[email protected]
www.placeworks.com

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA
Table of Contents
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Section Page

1. INTRODUCTION.............................................................................................................................. 1

1.1 PURPOSE OF AN ADDENDUM.................................................................................................................1

1.2 PREVIOUS ENVIRONMENTAL DOCUMENTATION........................................................................4

2. ENVIRONMENTAL SETTING ......................................................................................................... 7

2.1 PROJECT LOCATION ....................................................................................................................................7

2.2 ENVIRONMENTAL SETTING....................................................................................................................7

3. PROJECT DESCRIPTION ............................................................................................................ 19

3.1 APPROVED PROJECT..................................................................................................................................19

3.2 PROJECT DESCRIPTION............................................................................................................................19

3.3 DISCRETIONARY APPROVALS ................................................................................................................27

4. ENVIRONMENTAL CHECKLIST .................................................................................................. 29

4.1 BACKGROUND ..............................................................................................................................................29

4.2 ENVIRONMENTAL FACTORS POTENTIALLY AFFECTED..........................................................31

4.3 DETERMINATION (TO BE COMPLETED BY THE LEAD AGENCY)........................................31

4.4 EVALUATION OF ENVIRONMENTAL IMPACTS ..............................................................................32

5. ENVIRONMENTAL ANALYSIS ..................................................................................................... 35

5.1 AESTHETICS...................................................................................................................................................35

5.2 AGRICULTURE AND FORESTRY RESOURCES..................................................................................43

5.3 AIR QUALITY..................................................................................................................................................47

5.4 BIOLOGICAL RESOURCES........................................................................................................................59

5.5 CULTURAL RESOURCES ............................................................................................................................70

5.6 ENERGY...........................................................................................................................................................77

5.7 GEOLOGY AND SOILS...............................................................................................................................83

5.8 GREENHOUSE GAS EMISSIONS ............................................................................................................91

5.9 HAZARDS AND HAZARDOUS MATERIALS .......................................................................................96

5.10 HYDROLOGY AND WATER QUALITY .............................................................................................. 103

5.11 LAND USE AND PLANNING................................................................................................................. 113

5.12 MINERAL RESOURCES............................................................................................................................ 116

5.13 NOISE............................................................................................................................................................. 119

5.14 POPULATION AND HOUSING............................................................................................................. 134

5.15 PUBLIC SERVICES...................................................................................................................................... 137

5.16 RECREATION.............................................................................................................................................. 143

5.17 TRANSPORTATION/TRAFFIC.............................................................................................................. 146

5.18 TRIBAL CULTURAL RESOURCES......................................................................................................... 151

5.19 UTILITIES AND SYSTEM SERVICES................................................................................................... 157

5.20 WILDFIRE..................................................................................................................................................... 165

5.21 MANDATORY FINDINGS OF SIGNIFICANCE................................................................................ 169

6. FINDINGS.................................................................................................................................... 171

7. LIST OF PREPARERS ................................................................................................................ 173 CITY OF CORONA (LEAD AGENCY).................................................................................................................. 173 PLACEWORKS (CEQA CONSULTANT)............................................................................................................... 173

8. REFERENCES............................................................................................................................. 175

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Table of Contents
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APPENDICES
Appendix A Air Quality, and Greenhouse Gas Analysis
Appendix B Biological Technical Report and MSHCP Consistency Analysis Appendix C Arborist Report
Appendix D Archaeological and Architectural History Resources Inventory and Evaluation Report Appendix E Noise Analysis
Appendix F Vehicle Miles Traveled Screening Assessment
Appendix G Transportation Assessment

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Table of Contents
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List of Figures
Figure Page
Figure 1 Regional Location................................................................................................................................. 9 Figure 2 Local Vicinity.......................................................................................................................................11 Figure 3 Aerial Photograph with Photo Locations.......................................................................................13 Figure 4 Project Site Photographs...................................................................................................................15 Figure 5 Surrounding Uses Photographs........................................................................................................17 Figure 6 Overall Site Plan..................................................................................................................................21 Figure 7 Community Center and Aquatics Center Site Plan .......................................................................23 Figure 8 Horizontal Light Levels at Property Line .......................................................................................41 Figure 9 Approximate Noise Monitoring Locations ..................................................................................121 List of Tables
Table Page
Table 1 Corona City Park Regular Occurring Events Calendar................................................................25 Table 2 Corona City Park Annual Event Calendar......................................................................................25 Table 3 Maximum Daily Regional Construction Emissions......................................................................49 Table 4 Maximum Daily Regional Operation Emissions...........................................................................51 Table 5 Localized Construction Emissions...................................................................................................52 Table 6 Operation-Related Electricity Consumption..................................................................................79 Table 7 Operation-Related Natural Gas Consumption ..............................................................................80 Table 8 Project-Related Operation GHG Emissions..................................................................................92 Table 9 Short-Term Noise Measurements Summary in A-weighted Sound Levels.............................120 Table 10 Project-Related Construction Noise Levels..................................................................................124 Table 11 Weekday Project-Related Increases in Traffic Noise, dBA CNEL at 50 Feet........................126 Table 12 Saturday Project-Related Increases in Traffic Noise, dBA CNEL at 50 Feet.........................126 Table 13 Project-Related Amphitheater Noise, dBA ..................................................................................128 Table 14 Vibration Impact Levels for Typical Construction Equipment................................................130 Table 15 Proposed Increase in Potable Water Demand.............................................................................161 Table 16 Landfill Capacity ...............................................................................................................................163 Table 17 Proposed Increase in Solid Waste Generation.............................................................................163

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Abbreviations and Acronym
Page iv PlaceWorks
AAQS ambient air quality standards
AARIE Archaeological and Architectural Resources Inventory and Evaluation AB Assembly Bill
ADA Americans with Disabilities Act
ADT average daily traffic
amsl above mean sea level
AQMP air quality management plan
BMPs best management practices
CAFE Corporate Average Fuel Economy
CAL FIRE California Department of Forestry and Fire Protection CALGreen California Green Building Standards Code
CalRecycle California Department of Resources, Recycling, and Recovery Caltrans California Department of Transportation
CARB California Air Resources Board
CBC California Building Code
CDE California Department of Education
CDFW California Department of Fish and Wildlife
CEQA California Environmental Quality Act
CFD Corona Fire Department
CNDDB California Natural Diversity Database
CGP Construction General Permit
CMC City Municipal Code
CMP Congestion Management Plan
CNEL community noise equivalent level
CNUSD Corona-Norco Unified School District
CRHR California Register of Historical Resources
CO carbon monoxide
CO2e carbon dioxide equivalent
Corps US Army Corps of Engineers
CPD Corona Police Department
dB decibel
dBA A-weighted decibel
DPM diesel particulate matter

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Abbreviations and Acronyms
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DSA Division of the State Architect
DTSC Department of Toxic Substances Control
EAP emergency action plan
Fc foot candles
EIR environmental impact report
EPA United States Environmental Protection Agency
EPO emergency operations plan
FEMA Federal Emergency Management Agency
FHWA Federal Highway Administration
FHSZ Fire Hazard Severity Zone
FTA Federal Transit Administration
GHG greenhouse gases
HVAC heating, ventilating, and air conditioning system
IPCC Intergovernmental Panel on Climate Change
Ldn day-night noise level
Leq equivalent continuous noise level
LCFS low-carbon fuel standard
LRA local responsibility area
LST localized significance thresholds
MBTA Migratory Bird Treaty Act
mgd million gallons per day
MMT million metric tons
MRZ Mineral Resource Zones
MSHCP Multiple Species Habitat Conservation Plan
MT metric ton
MTCO2w metric tons of carbon dioxide equivalent
NAHC Native American Heritage Commission
NRHP National Register of Historic Places
NPDES National Pollutant Discharge Elimination System
NOX nitrogen oxides
O3 ozone
PM particulate matter
ppm parts per million

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Abbreviations and Acronym
Page vi PlaceWorks
PPV peak particle velocity
PRD permit registration documents
PRMMP Paleontological Resources Monitoring and Mitigation Plan RCNM roadway construction noise model
RTA Riverside Transit Agency
RTP/SCS Regional Transportation Plan/ Sustainable Communities Strategy RWQCB Regional Water Quality Control Board
SB Senate Bill
SCAG Southern California Association of Governments
SCAQMD South Coast Air Quality Management District
SLM sound level meter
SoCAB South Coast Air Basin
SOX sulfur oxides
SR State Route
SRA source receptor area [or state responsibility area] SWPPP Storm Water Pollution Prevention Plan
SWRCB State Water Resources Control Board
TCR Tribal Cultural Resources
USFWS United States Fish and Wildlife Service
UWMP urban water management plan
VdB velocity decibels
VHFHSZ very high fire hazard severity zone
VMT vehicle miles traveled
VOC volatile organic compound
WQCP Water Quality Control Plan
June 2026 Page 1

1. Introduction

1.1 PURPOSE OF AN ADDENDUM
This document is an Addendum to the previously certified Environmental Impact Report (EIR) (State Clearinghouse [SCH] No. 2018081039) for the City of Corona General Plan Technical Update (GP), which was certified on June 3, 2020 (referred to as the Approved Project). The purpose of this Addendum is to evaluate whether the proposed Corona City Park Revitalization Project (proposed project) would modify the Approved Project in such a way as to result in new environmental impacts or a substantial increase in the severity of previously identified significant effects or would otherwise trigger a need for subsequent environmental review.

The Draft EIR for the GP was circulated for public review from December 19, 2019, through February 3, 2020. A Final EIR was prepared and was approved on June 3, 2020, by the City of Corona. The 2020 Draft EIR and Final EIR are collectively referred to as the 2020 Certified EIR.

The 2020 Certified EIR, in conjunction with this Addendum, serve as the environmental review for the proposed modifications to the Approved Project, as required by the California Environmental Quality Act (CEQA), Public Resources Code Sections 21000 et seq., and the State CEQA Guidelines (14 California Code of Regulations Sections 15000–15387). This Addendum evaluates the potential environmental impacts associated with the proposed Corona City Park Revitalization Project.

1.1.1 Environmental Procedures
Pursuant to the State CEQA Guidelines, this Addendum focuses on whether implementation of the proposed project would require major revisions to the 2020 Certified EIR due to the potential for new significant environmental effects or a substantial increase in the severity of previously identified significant effects, pursuant to State CEQA Guidelines Section 15162.

Pursuant to Section 21166 of CEQA and Section 15162 of the State CEQA Guidelines, when an EIR has been certified or a negative declaration adopted for a project, no subsequent or supplemental EIR or negative declaration shall be prepared for the project unless the lead agency determines that one or more of the following conditions are met:
(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

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due to the involvement of 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 was certified as complete or the 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 or negative declaration;
(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. (CEQA Guidelines Section 15162[a]) A supplement to an EIR (supplemental EIR), which is narrower in scope than a subsequent EIR, may be prepared if any of the above criteria apply, but “only minor changes or additions would be necessary to make the previous EIR adequately apply to the project in the changed situation” (CEQA Guidelines Section 15163(a)). In the absence of the need to prepare either a subsequent or supplemental EIR, an addendum to a previously Certified EIR may be prepared. Section 15164 states:
(a) The lead agency or a responsible agency shall prepare an addendum to a previously Certified EIR if some changes or additions are necessary but none of the conditions described in Section 15162 calling for preparation of a subsequent EIR have occurred. (b) An addendum to an adopted negative declaration may be prepared if only minor technical changes or additions are necessary or none of the conditions described in Section 15162 calling for the preparation of a subsequent EIR or negative declaration have occurred. (c) An addendum need not be circulated for public review but can be included in or attached to the final EIR or adopted negative declaration.
(d) The decision making body shall consider the addendum with the final EIR or adopted negative declaration prior to making a decision on the project. (e) A brief explanation of the decision not to prepare a subsequent EIR pursuant to Section 15162 should be included in an addendum to an EIR, the lead agency’s findings

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on the project, or elsewhere in the record. The explanation must be supported by substantial evidence. (CEQA Guidelines Section 15164)
This Addendum to the 2020 Certified EIR has been prepared because the evaluation of the Corona City Park Revitalization Project, also known as the proposed project, has not indicated any of the circumstances requiring a subsequent or supplemental EIR. As demonstrated in Section 5, Environmental Analysis, of this Addendum, the proposed project would not result in impacts that differ from the Approved Project, and it would not trigger the need for preparation of a subsequent or supplemental EIR under the criteria in Sections 15162(a) and 15163(a). The proposed project is consistent with the General Plan Update and would not require changes to the Approved Project. This Addendum demonstrates that no substantial changes are proposed to the Approved Project or have occurred in the City that would require major revisions to the 2020 Certified EIR or substantially increase the severity of previously identified significant effects. Therefore, the impacts of the proposed project are within the levels and types of environmental impacts disclosed in the 2020 Certified EIR.

1.1.2 Scope and Analysis for This Addendum
This Addendum analyzes the changes and potential impacts of the proposed project and any changes to the existing conditions that have occurred since the City certified the EIR. It also reviews any new information of substantial importance that was not known and could not have been known with exercise of reasonable diligence at the time that the City approved the 2020 Certified EIR. It further examines whether, as a result of any changes or any new information, a subsequent or supplemental EIR may be required. This examination includes an analysis of the provisions of Section 21166 of CEQA and Section 15162 of the CEQA Guidelines and their applicability to the proposed project. This Addendum relies on the environmental analysis (see Section 5, Environmental Analysis), which addresses environmental checklist issues section by section.

The proposed project would not change the General Plan land use and zoning designations for the project site as evaluated under the 2020 Certified EIR, nor would the proposed project change the overall buildout of the City as evaluated under the Approved Project. Additionally, no substantial changes in circumstances under Section 15162(a)(2) have occurred since the certification of the 2020 Certified EIR that would indicate new significant impacts or substantially increase the severity of significant impacts previously identified. The background environmental conditions have not significantly changed since the certification of the 2020 Certified EIR. The City of Corona has received no information indicating a substantial change in any circumstances that would result in a new or substantially greater significant impact.

In addition, no information that was not known and could not have been known at the time of the 2020 Certified EIR preparation has been revealed that shows new or substantially greater significant impacts would result (see CEQA Guidelines Section 15162[a][3]). There are no new or different mitigation measures that would substantially reduce one or more significant impacts of the Approved Project but that are not adopted.

The proposed project does not identify or require adoption of any further mitigation measures beyond those provided in the 2020 Certified EIR.

Since this Addendum does not identify new or substantially greater significant impacts, circulation for public review and comment is not necessary (CEQA Guidelines Section 15164[c]). The City of Corona Historic

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Preservation Board will review this Addendum to ensure that the project complies with the City of Coronas Historic Preservation Guidelines If the Corona City Historic Preservation Board approves this Addendum, it shall be required to make findings by way of a resolution, including a finding that this Addendum provides the basis and substantial evidence for the decision not to prepare a subsequent or supplemental EIR (CEQA Guidelines Section 15164[e]).

1.2 PREVIOUS ENVIRONMENTAL DOCUMENTATION
This Addendum relies on the environmental analysis in the Program Environmental Impact Report (EIR) for the Corona General Plan Technical Update (GP) (State Clearinghouse No. 2018081039). A Final EIR was prepared and was approved on June 3, 2020, by the City of Corona. This environmental document is available on the City of Corona website. In accordance with CEQA Guidelines Sections 15148 and 15150, this Addendum incorporates the GP EIR (and its constituent parts) by reference.

The GP EIR analyzed the comprehensive update of the Corona General Plan (Approved Project). The GP EIR addressed the entire territory within the plan area’s boundary and the full spectrum of issues associated with management of the plan area. The General Plan update also included forecasts of long-term conditions and outlined development goals and policies; exhibits and diagrams; and the objectives, principles, standards, and plan proposals throughout its various elements. Specifically, the General Plan update identified policies related to promoting compatible land uses, preserving neighborhood character, promoting healthy neighborhoods, and promoting the enforcement of standards.

1.2.1 2019 Draft EIR for Corona General Plan Technical Update The City of Corona circulated the 2019 Draft EIR for public review from December 19, 2019, through February 3, 2020, and 20 topics were evaluated in detail.

Ten environmental categories were considered less than significant without incorporating mitigation:
 Aesthetics
 Energy
 Hazards and Hazardous Materials
 Hydrology and Water Quality
 Land Use and Planning
 Population and Housing
 Public Services
 Recreation
 Utilities and Service Systems
 Wildfire
Three environmental categories were identified as having potentially significant impacts that could be mitigated, avoided, or substantially lessened.

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 Biological Resources
 Geology and Soils
 Tribal Cultural Resources
Seven environmental categories were considered to have significant and unavoidable impacts that could not be alleviated by feasible mitigation.
 Air Quality
 Agriculture and Forestry Resources
 Cultural Resources
 Greenhouse Gas Emissions
 Mineral Resources
 Noise
 Transportation

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2. Environmental Setting

2.1 PROJECT LOCATION
Corona City Park (project site) is located at 930 East 6th Street in the City of Corona, which is in the northwestern corner of Riverside County. The project site is 19.6 acres and consists of two Assessor’s Parcel Numbers (APNs): 117-310-001-2 and 117-301-010-2.

Regional access to the project site is provided by State Route (SR) 91 located 0.20 miles to the north and Interstate 15 (I-15) located approximately 0.40 miles to the east (see Figure 1, Regional Location). The project site is bounded by Quarry Street, residential homes, and the Corona Community Veterinary Hospital to the north; Rimpau Avenue and the Municipal Plunge to the east; East 6th Street to the south; and Grand Boulevard, residential uses, vehicle-mechanic shops, and commercial uses to the west (Figure 2, Local Vicinity).

2.2 ENVIRONMENTAL SETTING

2.2.1 Existing Development and Land Use
The project site currently operates as the existing Corona City Park and has a land use designation of Parks and Open Space Recreational (OS-R) and a zoning designation of Parks (P)(Corona 2024a).

The project site has a gradual downward slope from the southwest to the northeast. The western portion of the project site contains an amphitheater, various shade structures, and a playground area with play structures.

The western strip of the project site contains the YMCA with three buildings, a hard top and playground area, and the city public pool with a pool building/locker room. The central portion of the project site contains an open field area, basketball courts, a playground with play structures, and internal roadways with parking lots.

The eastern portion of the project site contains the skate park, open parkway space, and undeveloped park space. The Municipal Plunge is located on the northeast corner of the project site and is not included as part of the project. The project site has a total of five parking lots, providing 169 parking stalls. An internal roadway connects three of the parking lots, and the two other parking lots are accessible via two separate ingress-egress driveways. The project site also contains paved walkways and landscaping throughout (see Figure 3, Aerial Photograph with Photo Locations, and Figure 4, Project Site Photographs).

2.2.2 Surrounding Land Use
The project site is bounded by Quarry Street, residential homes, and the Corona Community Veterinary Hospital to the north; Rimpau Avenue and the Municipal Plunge to the east; East 6th Street and Kress Court to the south; and Grand Boulevard, residential uses, an auto shop, and commercial uses to the west. Across Quarry Street are single-family homes and Circle City Towing to the north. To the east across Rimpau Avenue is a mobile home park, Advance Iron Concepts, and a vacant lot. Across East 6th Street are multi-family homes,

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a pawn shop, a car dealership, and a NAPA Auto Parts Store. Across East Grand Boulevard are restaurants and residential uses (see Figure 5, Surrounding Uses Photographs).

The properties surrounding the project site have these zoning designations:
 North. Single family residential (SF), low density multiple family residential (R2), commercial (GC), and commercial/office (BP)
 East. BP, BP (Affordable Housing Overlay zone [AHO]), multiple-family residential (MF1)  South. GC, commercial (TC), high density residential (R3)  West. Commercial/Office (RO), SF and TC (Corona 2024a) The general plan land use designations of the surrounding uses are:
 North. Single-family residential (SFR), commercial (C), and Commercial office (CP)  East. SFR, Light Indusial (LI), multiple-family residential (MFR), and C  South. C, Vacant (VC), CP, MFR, and Quasi-Public (QP), and MFR.  West. MFR and C
San Bernardino Count
Lake Mat hew s
0 3
Scale (Miles) Source: ESRI, 2022
Figure XX - Figure Title Here

1. Introduction

PROJECT NAME HERE

CITY OF PROJECT HERE
PlaceWorks
Figure 1 - Regional Location

CITY PARK REVITALIZATION PROJECT ADDENDU M
So

CITY OF CORONA
urce: Generated using ArcMap 2024.
0 Scale (Miles)
3 Note: Unincorporated county areas are shown in white.

Project Site
Chino Hills
Corona
Yorba
Linda
Anaheim
Irvine Lake
Forest
County of Orange
County of Riverside
Fontana
Jurupa Valley
Chino
Eastvale
Riverside
Norco
Ontario
91 CALIFORNIA
15 91

CALIFORNIA
15 241

CALIFORNIA
71 CALIFORNIA
60 CALIFORNIA
County of
Los Angeles
County Boundary
City Boundary
60 CALIFORNIA
241

CALIFORNIA

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0 2,000
Feet
Figure XX - Figure Title Here

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PROJECT NAME HERE

CITY OF PROJECT HERE
Source: ESRI, 2022
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Figure 2 - Local Vicinity
Source: Generated using ArcMap 2024.

CITY PARK REVITALIZATION PROJECT ADDENDUM
0 Scale (Feet)
2,000
Project Boundary
Note: Unincorporated county areas are shown in white.
91 CALIFORNIA
91 CALIFORNIA
15 15
City Boundary
Corona
Norco Norco Norco
Sampson Ave
E 10th St
E 6th St
Quarry St
Railroad St
E 8th St
N Joy St
S Main St
S Sheridan St
W Ontario Ave
Fullerton Ave
W Olive St
Magnolia Ave
Kellogg Ave
S Main St
Garreston Ave
Rimpau Ave
California Ave
Old Temescal Rd
River Rd
E Parkridge Ave
Temescal Wash
E Parkridge Ave
Cresta Rd
W Grand Blvd

CITY OF CORONA

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Figure 3 - Aerial Photograph with Photo Locations
Source: Nearmap 2024.

CITY PARK REVITALIZATION PROJECT ADDENDUM
0 Scale (Feet)
360 Project Boundary
Residential
Commercial
Residential
Commercial
E 6th St
Quarry St
La Costa Dr
E 3rd St
Rimpau
Ave
Arroya Ave
E Grand Ave
E 5th St
E 4th
St
Margarita Dr
Circle City Dr
E 7th St
Filbert St
Spruce St
Pine St
Cedar St
Fullerton Ave
Park Ln
Portolla St
Gianni Dr
San Juan St
91 CALIFORNIA
Temescal Wash
Commercial
Commercial
Residential
Photograph Location and Direction (18) 1

CITY OF CORONA
Construction Staging Area
1 9
3 4 5
2 8
6 7
10 13
14 15
16 11
12 17
18 CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

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Source: PlaceWorks 2024.

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Figure 4 - Project Site Photographs
View 1: From the western end of the Park looking east to the YMCA on the project site.

View 2: From northwest of the City pool looking southeast to the City pool on the project site.

View 3: From the western portion of the Park looking northeast the park amphitheater, park restroom building, shade structures and park benches, on the project site.

View 5: Adjacent from the southern centrally located driveway looking north to the parking lot, shade canopy and the open park on the project site.

View 6: From the southern portion of the park looking west to a play structure on the project site.

View 7: From the south-eastern portion of the project site looking northeast to the skate park on the project site.

View 9: From the northeast of the project site looking south to the athletic basketball courts and open park space in the distance, on the project site.

View 10: From the northern driveway looking south to the parking lot and shade structures on the project site.

View 8: From Rimpau Avenue looking southwest to a graded parking lot and trees on the project site.

View 4: From the southern portion of the park looking northwest to the play structures and open park space on the project site.

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Source: PlaceWorks 2024.

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Figure 5 - Surrounding Uses Photographs
View 11: From the southwestern parking lot on site, looking southwest to the commercial businesses, a residential home and
automobile mechanic shop.

View 12: From the southwestern driveway of the project site looking west to East 6th Street to the commercial uses.

View 13: From the southern centrally located driveway of the project site looking south to the commercial uses across East 6th Street.

View 15: From the southeast of the project site looking northeast to the municipal plunge, and residential uses and industrial uses across Rimpau Avenue.

View 16: From the northeast corner of the project site looking northwest to the residential uses across Quarry Street.

View 17: From the northwest corner of the project site looking north to the residential uses across Quarry Street.

View 18: From the western end of the project site looking northwest to the residential uses across East Grand Boulevard and the State Route 91 in the distance.

View 14: From the southeast corner of the project site looking southeast to the commercial uses across East 6th Street and Rimpau Avenue.

CITY OF CORONA

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3. Project Description

3.1 APPROVED PROJECT
The Approved Project is described in the City of Corona’s General Plan Technical Update EIR, which was certified on June 3, 2020. The General Plan is the City’s policy and implementation framework that guides the long-term growth and improvement of Corona for the next 20 or more years. Under the Approved Project in the General Plan, the project site is zoned Parks with a land use designation as Open Space Recreational, which allows for park and recreational uses. Therefore, the Approved Project assumed that the project site would serve as a park and recreational use.

3.2 PROJECT DESCRIPTION
The project site encompasses approximately 19.6 acres and is located at the northwest corner of East 6th Street and Rimpau Avenue in the City of Corona. The project site currently operates as Corona City Park and includes open fields, basketball courts, paved play areas, playground structures, parking lots, internal circulation routes, a skate park, pool buildings, and a YMCA facility. The proposed project would redevelop Corona City Park with a new aquatics center in the northeastern portion of the site; a new parking lot in the southeastern portion of the site; a centrally located community lawn (“Community Canvas”) with a community center building to the east; a new playground structure replacing the existing playground and a new splash pad to the west of the community lawn; replacement restrooms and parking areas on the western portion of the site; and relocated basketball courts with a new pump track surrounding them. An additional parking lot would be located in the northwestern portion of the site. The proposed project would also include new walkways and ornamental landscaping throughout the project site (see Figure 6, Overall Site Plan).

3.2.1 Community Center and Aquatics Center
The new 64,323-square-foot community center would be located on the eastern portion of the park and would include lobby space with a 2,200-square-foot check-in area, permitting access to four individual spaces; an approximately 12,000 square-foot Banquet Space; an approximately 28,000-square-foot fitness center; a 6,700-square-foot office and learning space, and a 43,000-square foot aquatic center (see Figure 7, Community Center and Aquatics Center Site Plan).

The Banquet space would include a 7,591-square-foot banquet hall with a 1,121-square-foot kitchen, 1,162-square-foot event storage, and a 2,700-square-foot outdoor banquet court. The fitness center would include a 20,162-square-foot gymnasium with bleachers, 935-square-foot gym storage rooms, a 3,243-squarefoot fitness room, a 1,882-square-foot group fitness room, an outdoor fitness area, locker rooms, and restrooms. The office and learning spaces would include a 1,546-square-foot classroom, a 2,194-square-foot conference room, a 1,049-square-foot game room, 1,400 square feet of administrative space with open offices, private office, meeting room, breakroom, public restrooms, and additional storage. The community center

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

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3. Project Description

would be open to the public Monday through Sunday, from 7:00 a.m./8:00 a.m. to 8:00 p.m./9:00 p.m., depending on the time of year.

To the east of the community center, the proposed aquatics center service building is approximately 3,785 square feet and consists of pool maintenance rooms, electrical rooms, restrooms, a training room and office located on the northwest portion of the aquatic center. South of the aquatic center building, the project would include a 8,405-square-foot recreational pool and spa that include “lazy river” recreation equipment and water slides, a 6,215-square-foot competition sports pool, four diving boards, large shade structures, outdoor showers, and various pool furniture. The aquatics center would be open to the public Monday through Sunday, from 7:00 a.m./8:00 a.m. to 8:00 p.m./9:00 p.m., depending on the time of year.

3.2.2 Community Canvas
Centrally located within the project site and directly west of the community center, the Community Canvas would serve as a versatile grass field surrounded by a broad walkway and a limited-access vehicle route. The space would accommodate a range of events, with the open field providing flexibility for temporary setups such as a portable stage or movie screen for community concerts and movie nights. Vehicle access along the designated route would be restricted to specific times and limited to vendors and maintenance vehicles.

Together, the Community Canvas and the community center—with its banquet hall—would support a variety of public and private events at Corona City Park while the park remains open to the public and for authorized community-organized activities.

3.2.3 Playground, Fitness, and Sports Courts
The northwest portion of the project site contains a swing set and two playgrounds with play structures—one designed for children aged 2 to 5 years and the other for children aged 5 to 12 years. Adjacent to the playgrounds are covered picnic structures, a volleyball court, and a parking lot. South of the playgrounds, a new splash pad would be developed along with new restroom facilities with outdoor showers. The westernmost area of the project site includes two basketball courts, a skate park and pump track, and two parking lots to the north and south. Walkways are provided throughout the project site.

3.2.4 Event Scheduling
The proposed project would provide a venue for new community-based events and accommodate the relocation of existing events currently held at other locations throughout the City. @@
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CITY PARK REVITALIZATION PROJECT ADDENDUM
Sports/Fitness Skate Park
Splash Pad
Playground
Community Canvas
Community Center
Aquatics Center
Restroom Building

CITY OF CORONA

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Source: RIOS 2025.

CITY PARK REVITALIZATION PROJECT ADDENDUM
PlaceWorks
0 Scale (Feet)
80 Figure 7 - Community Center and Aquatics Center Site Plan

CITY OF CORONA

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3.2.4.1 REGULARLY OCCURING EVENTS
The proposed project would include the weekly hosting of a Farmers Market, which is currently held at the Corona Mall parking lot and would be relocated to the project site. The Farmers Market would feature vendors and food trucks and attract approximately 1,000 visitors. In addition, the proposed project would host a bi-monthly lunchtime food truck event on weekdays, which would include multiple food trucks located within the project site and accommodate approximately 2,000 visitors. See Table 1, Corona City Park Regularly Occurring Events Calendar.

Table 1 Corona City Park Regular Occurring Events Calendar Event Frequency Event
Existing or New
Event Current Event Location Proposed Number of Attendees Weekly Farmers Market Existing Corona City Mall 1,000
Bi-monthly Lunchtime Food Truck New - 2,000

3.2.4.2 ANNUAL EVENT CALENDAR
The proposed project would accommodate various community events at the project site. Approximately 20 existing events currently held at other locations throughout the City would be relocated to the project site, and 7 new events would be introduced. Future events at the project site would not exceed the capacity currently accommodated at the site. A summary of proposed and relocated events is provided in Table 2, Corona City Park Annual Event Calendar.

Table 2 Corona City Park Annual Event Calendar
Event Schedule Event
Existing or New
Event Current Event Location Proposed Number of Attendees January Health Fair Existing Corona Community
Center
1,000
February Lunar New Year New - 1,000
Spring 5K Event or Street
Closure (Ex. Ciclavia)
New - 5,000
March Spring Festival New - 5,000
April Fentanyl Kills
Remembrance Walk
Existing Santana Park 1,000
Day of the Child Festival Existing Corona City Park 5,000 May Cinco de Mayo Festival &
Parade
Existing Corona City Park 2,000-5,000
Relay for Life, 2-Day
Event
Existing Santana Park 2,000
Corona Rotary
Lobsterfest
Existing City Hall Lawn 1,000
June Juneteenth New - 1,000
July Movies in the Park W1 Existing Various City Parks (4) 500 Movies in the Park W2 Existing Various City Parks (4) 500 Movies in the Park W3 Existing Various City Parks (4) 500

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Table 2 Corona City Park Annual Event Calendar
Event Schedule Event
Existing or New
Event Current Event Location Proposed Number of Attendees Summer Concerts W1 Existing Historic Civic Center
Lawn & 6th Street
2,500
Summer Concerts W2 Existing Historic Civic Center
Lawn & 6th Street
2,500
Summer Concerts W3 Existing Historic Civic Center
Lawn & 6th Street
2,500
August National Night Out Existing Historic Civic Center Hall Lawn
2,500
Movies in the Park W4 Existing Various City Parks (4) 500 Movies in the Park W5 Existing Various City Parks (4) 500 Summer Concerts W4 Existing Historic Civic Center
Lawn & 6th Street
2,500
Summer Concerts W5 Existing Historic Civic Center
Lawn & 6th Street
2,500
September Mexican Independence
Day Mariachi Concert
New - 1,000
October Red Ribbon Week
Festival
Existing Historic Civic Center
Lawn
1,000
Step Up for Safety 5k Existing Santana Park 1,000
Halloweekend Existing Historic Civic Center
Lawn
5,000
Día de los Muertos New Historic Civic Center
Lawn (2024)
2,000
November Turkey Trot New - 5,000
December Kids, Cops, and Holiday
Magic
City Hall Lawn 2,000

3.2.5 Pedestrian Access, and Vehicular Parking
The proposed project would include a network of walkways connecting all proposed park features and amenities. The project would continue to utilize the existing surrounding roadways, including East 6th Street, Rimpau Avenue, Quarry Street, and East Grand Boulevard. These streets contain sidewalks and crosswalks that provide pedestrian access to the park. Public transit access to the project site is provided by the Riverside Transit Agency (RTA) Bus Route 1 and the westbound Red Line. Bicycle access is available via bike lanes along the north and south sides of East 6th Street in both directions. The proposed project includes a total of 325 parking stalls, consisting of 153 new stalls in the Main Parking Lot located at the corner of East 6th Street and Rimpau Avenue; 67 stalls in the North Lot & Quarry Street; 41 stalls in the West Quarry Parking Lot; and 64 stalls in the Kress Court Parking Lot. Additional on-street parking is available along Quarry Street. Vehicular access to the project site would be provided via six access points: one ingress/egress point on Rimpau Avenue, two on Quarry Street, one on East Grand Boulevard, and two on East 6th Street.

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3.2.6 Emergency Access
The proposed fire lane would be approximately 28 feet wide and accessible via the newly constructed promenade and market plaza. This paved access route would extend through the central portion of the project site, connecting East 6th Street to Quarry Street.

3.2.7 Project Construction and Phasing
Project development is estimated to take approximately 36 months to complete, extending from December 2026 to December 2029. Construction of the proposed project would occur in one phase. Construction would be permitted to occur Monday through Friday from 7:00 am to 8:00 pm and on Saturdays from 9:00 am to 8:00 pm, with no work on Sundays or legal holidays. Grading activities would be limited to 8 hours/day, 5 days/week (or a total of 40 hours per week). Construction activities would include grading, site clearing, demolition, site preparation, and building construction. During construction, the project site would be enclosed with privacy fencing to ensure the safety of workers and the public. The fencing would also help minimize visual disturbances and limit dust and debris from spreading to adjacent streets and properties, preserving the character and aesthetics of the surrounding area throughout the construction period.

3.2.7.1 CONSTRUCTION STAGING
A City-owned parcel located at 411 Rimpau Avenue (APN 117-331-004) adjacent to the project site is currently vacant and undeveloped. The parcel has been identified as a potential staging area to support construction activities of the proposed project. The staging area would accommodate approximately three construction trailers for use by the City/construction manager, general contractor, and electrical subcontractor, as well as several storage containers for construction materials and equipment.

3.3 DISCRETIONARY APPROVALS
The City is the Lead Agency under CEQA and has the approval authority over the proposed project.

Discretionary actions for the proposed project would include: (1) certification of the environmental document and (2) approval of the proposed project.

3.3.1 Other Agency Action Requested
The City is the Lead Agency under CEQA and has the approval authority over the proposed project. The City would require approval and/or coordination from the following agencies to implement the proposed project.  Kizh Nation: Tribal agreement for tribal monitoring prior to grading.  SoCal Edison: Confirmation of existing electrical facilities, capacity, and any required upgrades.  The Gas Co: Confirmation of gas service availability and capacity.  Public Utilities: Confirmation of potable water and sanitary sewer capacity.

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 Santa Ana Regional Water Quality Control Board: Enrollment under the Statewide Construction Stormwater Permit.
 Riverside County Department of Environmental Health: Approval of warming kitchen and aquatics center.

June 2026 Page 29

4. Environmental Checklist

4.1 BACKGROUND

1. Project Title: Corona City Park Revitalization Project (Addendum to the City of Corona’s General Plan Update - State Clearinghouse [SCH] No. 2018081039)

2. Lead Agency Name and Address:

City of Corona
400 South Vicentia Avenue
Corona, California 92882

3. Contact Person and Phone Number:

Rachel McLure, CIP Supervisor
951.736.2400

4. Project Location:

The project site is located at 930 East 6th Street in the City of Corona, which is in the northwestern corner of Riverside County. The project site is 19.6 acres and consists of two Assessor’s Parcel Numbers (APNs): 117-310-001-2 and 117-301-010-2. The project site is bounded by Quarry Street to the north, Rimpau Avenue to the east, East 6th Street to the south, and Grand Boulevard to the west.

5. Project Sponsor’s Name and Address:

City of Corona
400 South Vicentia Avenue
Corona, California 92882

6. General Plan Designation: Parks and Open Space Recreational (OS-R)

7. Zoning: Parks (P)

8. Description of Project:

The approximately 19.6-acre project site, at the northwest corner of East 6th Street and Rimpau Avenue, currently operates as Corona City Park and includes fields, courts, playgrounds, parking areas, circulation routes, a skate park, pool buildings, and a YMCA facility. The proposed project would redevelop the project site with a new aquatics center (northeast), a new southeastern parking lot, a centrally located “Community Canvas” lawn with an adjacent community center, a new playground and splash pad, replacement restrooms and western parking areas, and relocated basketball courts with a surrounding pump track. An additional parking lot would be added in the northwest. The proposed project also includes new walkways and ornamental landscaping throughout the project site.

9. Surrounding Land Uses and Setting
The project site is bounded by Quarry Street, residential uses, and the Corona Community Veterinary Hospital to the north; Rimpau Avenue and the Municipal Plunge to the east; East 6th Street and Kress Court

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4. Environmental Checklist

to the south; and Grand Boulevard, residential uses, an auto shop, and other commercial uses to the west.

Across Quarry Street are single-family homes and Circle City Towing. East of Rimpau Avenue are a mobile home park, Advance Iron Concepts, and a vacant lot. Across East 6th Street are multi-family homes, a pawn shop, a car dealership, and a NAPA Auto Parts store. Across East Grand Boulevard are restaurants and residential uses. Surrounding zoning includes Single-Family Residential (SF), Low-Density Multi-Family Residential (R2), General Commercial (GC), and Commercial/Office (BP) to the north; BP, BP (Affordable Housing Overlay zone [AHO]), and Multi-Family Residential (MF1) to the east; GC, Town Center (TC), and High-Density Residential (R3) to the south; and Residential Office (RO), SF, and TC to the west (Corona 2024a). The surrounding General Plan designations include Single-Family Residential (SFR), Commercial (C), and Commercial Office (CP) to the north; SFR, Light Industrial (LI), Multiple-Family Residential (MFR), and C to the east; C, Vacant (VC), CP, MFR, and Quasi-Public (QP) to the south; and MFR and C to the west.

10. Other Public Agencies Whose Approval Is Required (e.g., permits, financing approval, or participating agreement):
 Local Agencies
• Riverside County Fire Department: Approval of the newly constructed fire lane and confirmation of emergency access compliance.
• Santa Ana Regional Water Quality Control Board: Coverage under the NPDES Construction General Permit and review of stormwater compliance measures.

11. Have California Native American tribes traditionally and culturally affiliated with the project area requested consultation pursuant to Public Resources Code section 21080.3.1? If so, is there a plan for consultation that includes, for example, the determination of significance of impacts to tribal cultural resources, procedures regarding confidentiality, etc.?:

NOTE: Conducting consultation early in the CEQA process allows tribal governments, lead agencies, and project proponents to discuss the level of environmental review, identify and address potential adverse impacts to tribal cultural resources, and reduce the potential for delay and conflict in the environmental review process. (See Public Resources Code section 21080.3.2.) Information may also be available from the California Native American Heritage Commission’s Sacred Lands File per Public Resources Code section 5097.96 and the California Historical Resources Information System administered by the California Office of Historic Preservation. Please also note that Public Resources Code section 21082.3(c) contains provisions specific to confidentiality.

Tribal consultation was conducted as part of the Approved Project’s environmental analysis pursuant to Assembly Bill 52 and Senate Bill 18. Additionally, the notification and consultation requirements pursuant to PRC Section 21080.3.1 do not apply to the proposed project because this is an Addendum to the 2020 Certified EIR. Therefore, further tribal consultation is not required.

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4.4 EVALUATION OF ENVIRONMENTAL IMPACTS

1. A brief explanation is required for all answers except “No Impact” answers that are adequately supported by the information sources a lead agency cites in the parentheses following each question. A “No Impact” answer is adequately supported if the referenced information sources show that the impact simply does not apply to projects like the one involved (e.g., the project falls outside a fault rupture zone). A “No Impact” answer should be explained where it is based on project-specific factors, as well as general standards (e.g., the project would not expose sensitive receptors to pollutants, based on a project-specific screening analysis).

2. All answers must take account of the whole action involved, including off-site as well as on-site, cumulative as well as project-level, indirect as well as direct, and construction as well as operational impacts.

3. Once the lead agency has determined that a particular physical impact may occur, then the checklist answers must indicate whether the impact is potentially significant, less than significant with mitigation, or less than significant. “Potentially Significant Impact” is appropriate if there is substantial evidence that an effect may be significant. If there are one or more “Potentially Significant Impact” entries when the determination is made, an EIR is required.

4. “Negative Declaration: Less Than Significant With Mitigation Incorporated” applies where the incorporation of mitigation measures has reduced an effect from “Potentially Significant Impact” to a “Less Than Significant Impact.” The lead agency must describe the mitigation measures, and briefly explain how they reduce the effect to a less than significant level.

5. Earlier analyses may be used where, pursuant to the tiering, program EIR, or other CEQA process, an effect has been adequately analyzed in an earlier EIR or negative declaration. Section 15063(c)(3)(D). In this case, a brief discussion should identify the following:
a) Earlier Analyses Used. Identify and state where they are available for review. b) Impacts Adequately Addressed. Identify which effects from the above checklist were within the scope of and adequately analyzed in an earlier document pursuant to applicable legal standards, and state whether such effects were addressed by mitigation measures based on the earlier analysis. c) Mitigation Measures. For effects that are “Less than Significant with Mitigation Measures Incorporated,” describe the mitigation measures which were incorporated or refined from the earlier document and the extent to which they address site-specific conditions for the project.

6. Lead agencies are encouraged to incorporate into the checklist references to information sources for potential impacts (e.g., general plans, zoning ordinances). Reference to a previously prepared or outside document should, where appropriate, include a reference to the page or pages where the statement is substantiated.

7. Supporting Information Sources: A source list should be attached, and other sources used or individuals contacted should be cited in the discussion.

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8. This is only a suggested form, and lead agencies are free to use different formats; however, lead agencies should normally address the questions from this checklist that are relevant to a project’s environmental effects in whatever format is selected.

9. The explanation of each issue should identify:
a) the significance criteria or threshold, if any, used to evaluate each question; and b) the mitigation measure identified, if any, to reduce the impact to less than significance

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5. Environmental Analysis
This chapter provides evidence to substantiate the conclusions in the environmental checklist. Each section briefly summarizes the conclusions of the 2020 Certified EIR and discusses the following three conditions pursuant to CEQA Guidelines Section 15162:

Condition 1. Whether or not the proposed project represents a substantial change that will require major revisions to the Certified EIR due to new significant environmental effects or a substantial increase in the severity of previously identified significant effects; Condition 2. Whether or not substantial changes in the circumstances under which the proposed project is being undertaken will require major revisions to the Certified EIR due to new significant environmental effects or a substantial increase in the severity of previously identified significant effects; or
Condition 3. If new information shows that the proposed project would have one or more new significant effects; that significant effects would be substantially more severe than previously described; that mitigation measures or alternatives previously found not to be feasible would be feasible and substantially reduce impacts, but project proponents decline to adopt them; or that new or previously rejected mitigation measures or alternatives would be feasible and would substantially reduce one or more project impacts, but project proponents decline to adopt them.

If none of the above conditions are met, the analysis identifies where impacts of the proposed project would not require major revisions to the 2023 Certified EIR or substantially increase the severity of previously identified significant effects that would trigger the need to prepare a subsequent or supplemental EIR under Sections 15162(a) and 15163(a).

5.1 AESTHETICS

5.1.1 Summary of Impacts Identified in the Program EIR
The 2020 Certified EIR concluded that the Approved Project would result in less than significant impacts regarding aesthetics.

Scenic Vistas or Resources Along a State Scenic Highway Visual resources in the City and sphere of influence (SOI) include mountain views, prominent scenic views, scenic vistas, and scenic resources. The approved land use plan under the General Plan would allow for development in currently undeveloped parcels and intensification of existing uses along local scenic corridors.

However, land use designations would remain the same, and existing conditions in residential areas adjacent to

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5. Environmental Analysis

scenic vistas and resources would remain unchanged. Future projects in the Hillside District would be required to develop and implement land use controls that preserve significant visual resources. Additionally, future development would be required to comply with the City’s municipal code, Residential and Industrial Development Design Guidelines (including specific plan guidelines), and the General Plan goals and policies.

The General Plan would continue to preserve open space areas, parks, and agricultural lands that provide views of scenic vistas. Therefore, vistas and scenic resources in and surrounding the City would not be adversely impacted. Impacts were determined to be less than significant.

Visual Character and Quality
Buildout of the approved land use plan under the General Plan would alter the existing visual appearance of the City with the development of undeveloped parcels and intensification of existing uses. The City of Corona is characterized by its diversity of residential neighborhoods: which includes historic neighborhoods, older neighborhoods, new neighborhoods, and industrial and commercial areas within the City. Future development would be required to comply with existing regulations that assist in maintaining the City’s character, including the City’s residential and industrial development design guidelines, industrial landscape design guidelines, the policies of the Community Design Element, and Title 17 (Zoning Code) of the Corona Municipal Code.

Although new developments would alter the visual appearance of the City, the Approved Project would not degrade Corona’s visual character or quality with compliance to the City’s existing regulations and General Plan policies. Impacts were determined to be less than significant.

Light and Glare
Sources of light and glare in the City include building lighting (interior and exterior), security lighting, sign illumination, ballfield lighting, and parking-area lighting. These sources are mostly associated with residential, commercial, and industrial uses and the larger community parks in the more developed areas of the City. Future development under the General Plan would occur in undeveloped parcels and areas designated for intensification of existing uses, which would introduce new sources of light and glare. However, future development would be required to comply with residential, commercial, and industrial landscape design guidelines, which consider accent lighting and lighting in the City’s landscape assessment districts, Chapter 17.76 and Chapter 17.861 of the City’s Zoning Code, and General Plan policies to minimize any potential spillover associated with light and glare. Impacts were determined to be less than significant.

5.1.2 Impacts Associated with the Proposed Project
Except as provided in Public Resources Code Section 21099, would the project:
1 Chapter 17.76 and Chapter 17.86 of the City’s Zoning Code, as referenced in the 2020 Certified EIR, have since been updated to Chapter 17.84 in the current Zoning Code as noted in the analysis provided below.

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June 2026 Page 37
Environmental Issues
Condition 1:

Substantial
Change in
Project
Requiring Major
Revisions
Condition 2:

Substantial
Change in
Circumstances
Requiring
Major
Revisions
Condition 3:

New
Information
Showing New
or Increased
Significant
Effects
Less Than
Significant
Impact/No
Changes or
New
Information
Requiring
Preparation of
an EIR/MND No Impact
a) Have a substantial adverse effect on a
scenic vista? X
b) Substantially damage scenic resources,
including, but not limited to, trees, rock
outcroppings, and historic buildings within a
state scenic highway?
X
c) In nonurbanized 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?
X
d) Create a new source of substantial light or
glare which would adversely affect day or
nighttime views in the area?
X
a) Have a substantial adverse effect on a scenic vista? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. The City of Corona General Plan describes scenic vistas as points where wide-open views of natural features dominate the visual image of the City. The City contains both prominent scenic vistas and scenic corridors defined as locally important scenic vistas. Significant vistas in the City include: the Prado Basin views from Sierra del Oro, which encompass the basin on the south and canyon areas on the west; the view south to the Santa Ana Mountains from the I-15/SR-91 freeway interchange; the southern view of the San Bernardino foothills from major north-south streets south of Ontario Avenue; the views of the San Gabriel Mountains from the higher elevations south of Ontario Avenue; and Eagle Glen. Scenic corridors (local, State, and county eligible scenic highways) include: Grand Boulevard; Main Street, from 3rd Street to the southern terminus; Ontario Avenue, from Mangular to State Street; Chase Drive from Foothill Parkway to Spring Meadows Drive; Foothill Parkway, from Paseo Grande to Bedford Canyon Road; Magnolia, from Ontario Ave to Rimpau Avenue; Green River Road, from SR-91 to Palisades Drive; Palisades Drive, from Green River to Serfas Club Drive; Eagle Glen Parkway, from I-15 to southern terminus; and SR-71, SR-91, I-15 and Cajalco Road, respectively.

The project site is an existing park and will continue to operate as a park within an urbanized area, and views surrounding the project site are largely constrained by residential and commercial development, landscaping, and vegetation. There are several scenic vistas within the City that are located near the project site, including SR-91, I-15, I-15/SR-91 freeway interchange, and Main Street, which are approximately 0.20 miles, 0.40 miles,

0.40 miles, and 0.50 miles away, respectively. SR-91 offers views of the Santa Ana Canyon to the west and

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5. Environmental Analysis

Norco/Corona Hills to the northeast. The project site is south of SR-91 and would not hinder any views of scenic vistas from SR-91. I-15 offers views of Temescal Valley to the south. The project site is west of the I15 and would not affect views of this scenic vista. Main Street provides views of the City’s historic core, the Santa Ana Mountains to the west and south, and the low foothills of the San Bernardino Mountains to the east.

The project site is approximately 0.50 miles west of Main Street; however, due to the existing commercial and residential development, the proposed project would not be visible from Main Street and would not affect the scenic vista. Grand Boulevard is a City-designated scenic vista that bounds the project site to the west and provides views of the City’s historic core, estates, and mature trees. The mature trees on the project site are not prominently visible from Grand Boulevard due to surrounding development blocking views of the project site and mature trees. The proposed project would remove 275 and relocate 59 ornamental trees; however, 46 mature trees will remain in place with tree protection fencing, to maintain the historic character of the site.

Further, the project site along Grand Boulevard includes the existing YMCA buildings and trees. The proposed project would remove the existing YMCA, replant trees, and introduce new park facilities. The proposed project would allow for better views into the project site from Grand Boulevard and would not negatively impact views from Grand Boulevard. The proposed project would be consistent with Goal CD-6 of the General Plan, to develop and implement land use controls that preserve significant visual resources from potential loss or disruption (Policies CD-6.1 through CD-6.4), and Goal CD-7, maintain, establish, develop, and protect the City’s highways and corridors for scenic purposes (Policies CD-7.1 through CD-7.3). The project site will continue to operate as a park and the proposed project would not have a substantial adverse effect on a scenic vista. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.
b) Substantially damage scenic resources, including, but not limited to, trees, rock outcroppings, and historic buildings within a state scenic highway?
No Impact. The nearest officially State-designated scenic highway to the project site is a portion of SR-91 near the City of Anaheim, approximately 12.20 miles west of the project site (Caltrans 2024). Due to the distance, topography, and intervening development, the project site is not visible from SR-91. Therefore, as with the Approved Project, no scenic resources would be damaged, and no impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.
c) In nonurbanized 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? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. For an incorporated city, “urbanized area” means the city, either by itself or in combination with two contiguous incorporated cities, has a population of at least 100,000 persons. The City of Corona has an

CITY PARK REVIT A LIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis
June 2026 Page 39
estimated population of 160,238 people (US Census 2023). Therefore, the project site is in an urbanized area as defined by Public Resources Code 21071.

The proposed project would revitalize the existing Corona City Park and would be consistent with the existing land use designation (OS-R) and a zoning designation (P) of the project site (Corona 2024a). Because the proposed project would serve similar uses and its development would be comparable to or lower in height than surrounding structures, it would not degrade the visual character or quality of public views in the area. The proposed project would be consistent with Corona General Plan community design policies, including but not limited to: Goal CD-2, entries that are well defined by signage, landscaping, lighting, and other visual landmarks that provide a clear sense of arrival into and identity for the City of Corona and Goal CD-6, develop and implement land use controls that preserve significant visual resources from potential loss or disruption.

Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project.

Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.
d) Create a new source of substantial light or glare, which would adversely affect day or nighttime views in the area?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. Lighting effects are associated with the evening and nighttime use of artificial light. Excessive light and/or glare can impair vision, cause annoyance, affect sleep patterns, and generate safety hazards when experienced by drivers. Residences and natural outdoor spaces are considered light sensitive since occupants have expectations of privacy during evening hours and may be subject to disturbance by bright light sources, and wildlife’s natural movements and activities can be disrupted. Light spill is typically defined as the presence of unwanted light on properties adjacent to the property being illuminated. With respect to lighting, the degree of illumination may vary widely depending on the amount of light generated, height of the light source, presence of barriers or obstructions, type of light source, and weather conditions.

Glare is primarily a daytime occurrence caused by the reflection of sunlight or artificial light on surfaces that reflect the light, such as highly polished surfaces (e.g., glass, automobiles, and reflective materials) and lightcolored surfaces (e.g., surfaces of buildings and structures). Perceived glare is the unwanted and potentially objectionable sensation experienced by a person as they look directly into the light source of a luminaire.

Daytime glare generation is common in urban areas and is typically associated with buildings with exterior façades largely or entirely composed of highly reflective glass. Glare can also be produced during evening and nighttime hours by the reflection of artificial light sources such as automobile headlights. Daytime glare can also be generated by light reflecting off passing or parked cars. Glare generation is typically related to either moving vehicles or sun angles, although glare resulting from reflected sunlight can occur regularly at certain times of the day and year. Excessive glare not only impedes visibility but also increases the ambient heat reflectivity in a given area. The adjacent residences are glare-sensitive uses.

For the purposes of this analysis, a standard of 0.9 foot-candle (fc) was used for a significance determination because it sets the standard below the level of typical street lights (1.0 to 5.0 fc) and below twilight levels (1.0 fc),

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis

which ensures that bedrooms are not subjected to sleep-depriving light intrusion. Additionally, industry best practices recommend that exterior lighting levels be further reduced to 0.2 fc or less after curfew hours to further reduce impacts on human circadian rhythms, nighttime wildlife activity, and general skyglow (IDA 2020).

Existing on-site sources of light are minimal and include security lighting, lampposts, other park facilities outdoor lighting, and vehicle headlights. Surrounding sources of light include residential lighting (such as light emanating from windows, outdoor lighting on private property, and security lighting), streetlights, car lights, and lights associated with the surrounding commercial uses. The project site is generally unlit except for nighttime lighting associated with the uses on site, such as security lighting. Existing sources of glare include light reflecting off of vehicles traveling on the public rights-of-way, parked in parking lots and along public rights-of-way, and light-colored building materials.

The buildout of the proposed project would not significantly increase the sources of light and glare in the area; however, the proposed project would result in more reflective surfaces compared to existing conditions on the project site. The existing Corona City Park includes sidewalk and parking lot lighting, as well as lighting around the skate park, basketball and tennis courts, open field, and exterior building areas. The proposed project would provide similar lighting features, including illumination around the community canvas, skate park, and sports fitness area, as well as exterior building and parking lot lighting. Since the proposed project is more built out than the existing park and includes more recreational features, nighttime lighting is expected to increase within the project site.

The Musco lighting plans measure fc lighting measurements at the project site boundary. As shown in Figure 8, Horizontal Light Levels at Property Line, the highest light level at the boundary is 0.04 fc, which is below the 0.9 fc threshold of significance and below the 0.2 fc target for after curfew. Since the proposed lights allow the lamps to be directed down to the ground and not at a right angle across the park, and the nearest residential properties are located beyond the project site boundary to the north, west, south, and east, so no residential properties will experience measurable increase in lighting as a result of the proposed project. Therefore, the proposed project would not create a new source of substantial light or glare that would adversely affect day or nighttime views in the area.

Additionally, the proposed community center and various park lighting would be shielded and directed away from residential and sensitive uses surrounding the project site. The proposed project would also be consistent with Corona General Plan goals and policies, including but not limited to policy HC-2.4: Ensure that individuals, neighborhoods, and businesses clearly understand the potential for adverse pollution, noise, odor, vibration, lighting and glare, and the effects of toxic materials or emissions when generating uses are proposed near them.

The proposed project would be required to comply with California Building Energy Efficiency Standards for Residential Buildings (Title 24, Part 6), Chapter 17.84 of the City’s Zoning Code, Lighting Performance Standards (formerly Chapters 17.76 and 17.86 under the 2020 Certified EIR), and applicable General Plan policies would minimize potential spillover effects associated with light and glare. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur.

No changes or new information would require preparation of a supplemental or subsequent EIR.

INEERED DESIGN BDLhFil#182609A 18M25
P1
P2 P3
P4
P5
P6
P7
P8
L4
L1
L2
L3
L5
BB1 BB2
SK4
SK3
SK1
SK2

0.00.00.00.00.00.0 0.00.00.00.00.0 0.00.00.00.00.0 0.00.00.00.00.0 0.00.00.00.00.0 0.00.00.00.00.0 0.00.00.00.00.0 0.00.00.00.00.0 0.00.00.00.00.0 0.00.00.00.00.0 0.00.00.00.00.0 0.00.00.0 0.0 0.0 0.0 0.0 0.0 0.0

0.0 0.0

0.0 0.0

0.0 0.0

0.0 0.0

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0.0 0.0

0.0 0.0

0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

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0.0 0.0

0.0 0.0
SCALE IN FEET 1 : 200
0' 200' 400'
structure utilizes a back-to-back mounting configuration ve Grade level relative to the field
Pole location(s) dimensions are relative
to 0,0 reference point(s)
Source: MUSCO 2025.

CITY PARK REVITALIZATION PROJECT ADDENDUM

CITY OF CORONA
PlaceWorks
0 Scale (Feet)
160
Figure 8 - Horizontal Light Levels at Property Line

0.0 0.0

0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

0.0 0.0

0.0 0.0

0.0 Equipment List For Areas Shown
Pole Luminaires

QTY LOCATION SIZE GRADE

ELEVATION

ABOVE GRADE

LEVEL LUMINAIRE TYPE QTY/POLE THISGRID
OTHER
GRIDS
2 BB1-BB2 50' - 50' TLC-LED-550 4/2* 6 0
3 L1-L2
L5 60' - 60' TLC-LED-1200 1 1 0
60' TLC-LED-900 3 3 0
1 L3 60' - 60' TLC-LED-1200 1 1 0
60' TLC-LED-900 4 4 0
1 L4 60' - 60' TLC-LED-900 5 5 0
4 P1-P4 50' - 50' TLC-LED-550 3 3 0
4 P5-P8 50' - 50' TLC-LED-550 2 2 0
4 SK1-SK4 40' - 40' TLC-LED-550 2 2 0
19 Totals 62 62 0
*This structure utilizes a back-to-back mounting configuration *Above Grade level relative to the field
City Park Ath
Corona, CA
Grid Summary Na
Spac
Heig
Illumination Summ
Scan Avera
Maxim
Minimu
No. of Poi

LUMINAIRE INFORMATI
Applied Circu
No. of Luminai
Total Lo
Guaranteed Performance
above is guaranteed per y
document.

Field Measurements: In
from computer-calculated
in accordance with IESNA
Electrical System Require
Draw Chart and/or the "
for electrical sizing.

Installation Requirement
nominal voltage at line sid
located within 3 feet (1m
P1
P2 P3
P4
P5
P6
P7
P8
L4
L1
L2
L3
BB1 BB2
SK4
SK3
SK1
SK2
.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

0.0 0.0

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Luminaires

LUMINAIRE TYPE QTY/POLE THIS
GRID
OTHER
GRIDS
TLC-LED-550 4/2* 6 0
TLC-LED-1200 1 1 0
TLC-LED-900 3 3 0
TLC-LED-1200 1 1 0
TLC-LED-900 4 4 0
TLC-LED-900 5 5 0
TLC-LED-550 3 3 0
TLC-LED-550 2 2 0
TLC-LED-550 2 2 0
62 62 0
onfiguration
City Park Athletic Fields
Corona, CA
Grid Summary Name: Spill @ 3ft.

Spacing: 30.0'
Height: 3.0' above grade
Illumination Summary INITIAL HORIZONTAL FOOTCANDLES
Entire Grid
Scan Average: 0.0012
Maximum: 0.04
Minimum: 0.00
CU: 0.00
No. of Points: 176

LUMINAIRE INFORMATION
Applied Circuits: A,B,C,D,E,F
No. of Luminaires: 62
Total Load: 42.12 kW
Guaranteed Performance: The ILLUMINATION described
above is guaranteed per your Musco Warranty
document.

Field Measurements: Individual field measurements may vary from computer-calculated predictions and should be taken in accordance with IESNA RP-6-15.

Electrical System Requirements: Refer to Amperage
Draw Chart and/or the "Musco Control System Summary"
for electrical sizing.

Installation Requirements: Results assume ± 3%
nominal voltage at line side of the driver and structures located within 3 feet (1m) of design locations.

P4
P5
P6
0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

0.0 0.0

0.0 0.0

0.0 0.0

0.0 00
City Park Athletic Fields
Corona, CA
Grid Summary Name: Spill @ 3ft.

Spacing: 30.0'
Height: 3.0' above grade
Illumination Summary INITIAL HORIZONTAL FOOTCANDLES
Entire Grid
Scan Average: 0.0012
Maximum: 0.04
Minimum: 0.00
CU: 0.00
No. of Points: 176

LUMINAIRE INFORMATION
Applied Circuits: A,B,C,D,E,F
No. of Luminaires: 62
Total Load: 42.12 kW
Guaranteed Performance: The ILLUMINATION described
above is guaranteed per your Musco Warranty
document.

Field Measurements: Individual field measurements may vary from computer-calculated predictions and should be taken in accordance with IESNA RP-6-15.

Electrical System Requirements: Refer to Amperage
Draw Chart and/or the "Musco Control System Summary"
for electrical sizing.

Installation Requirements: Results assume ± 3%
nominal voltage at line side of the driver and structures located within 3 feet (1m) of design locations.

0.0 0.0

0.0 Pole location(s) dimensions are relative to 0,0 reference point(s) E 6th St
Quarry St
E Grand Ave
Rimpau Ave
Arroya
Ave
E 5th St
Project Boundary

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis

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CITY PARK REVIT A LIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis
June 2026 Page 43

5.1.3 Adopted Mitigation Measures Applicable to the Proposed Project No mitigation measures related to aesthetics were outlined in the 2020 Certified EIR.

5.2 AGRICULTURE AND FORESTRY RESOURCES

5.2.1 Summary of Impacts Identified in the Program EIR
The 2020 Certified EIR concluded that no mitigation measures were feasible, and the Approved Project resulted in significant impacts to agriculture and forestry resources.

Farmland
Implementation of the General Plan would result in approximately 7,591 acres, or 88 percent, of farmland in the City and SOI would be converted to non-agricultural uses. However, agricultural uses would continue to be permitted if the zoning permits agricultural uses. The Approved Project would not change the land use designations, density, or intensity levels beyond what is currently designated within the 2004 General Plan, and all existing farmlands would remain for agricultural uses and would not result in the conversion or zoning of Farmland to nonagricultural development. Development of the General Plan would convert farmland with nonagricultural land use designations to nonagricultural use. The associated loss of agricultural production was determined to result in a significant impact.

Williamson Act
On February 22, 2006, the Williamson Act contract for a preserve in the City was terminated, and there are currently no Williamson Act contracts in the City. Implementation of the General Plan would result in a loss of 8 acres within the SOI, and 323 acres of agricultural preserves in the SOI would remain. Despite there being no Williamson Acts contract land within the City, there is Williamson Act contract land in the SOI; therefore the loss of 8 acres in the SOI was determined to result in a significant impact on agriculture in the region.

Forestland and Timberland
According to CAL FIRE, there are no current or planned fixed commercial timber operations, and there are no timber production zones in the City of Corona or its SOI. Consequently, implementation of the General Plan would not result in loss or conversion of timberland to non-forest uses. Portions of the City and SOI contain woodland and forest vegetation, predominantly in the eastern and western peripheries of the project area. The General Plan would not impact potential forestland in these areas of the City or SOI, and implantation of General Plan policies would reduce impacts to forest resources. Development in the City and SOI would not result in the loss or conversion of forestland to non-forest uses; and the Approved Project would not change land use designations, densities, or intensities; therefore, the Approved Project would not rezone forestland to non-forest use. With adherence to the General Plan, the Approved Project’s impacts were determined to be less than significant.

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis

5.2.2 Impacts Associated with the Proposed Project
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, 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 proposed project:

Condition 1:

Substantial
Change in
Project
Requiring
Major
Revisions
Condition 2:

Substantial
Change in
Circumstances
Requiring
Major
Revisions
Condition 3:

New
Information
Showing New
or Increased
Significant
Effects
Less Than
Significant
Impact/No
Changes or
New
Information
Requiring
Preparation of
an EIR/MND No Impact
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?
X
b) Conflict with existing zoning for agricultural
use, or a Williamson Act contract? X
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))?
X
d) Result in the loss of forest land or
conversion of forest land to non-forest use? X
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?
X
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? No Impact. The Farmland Mapping and Monitoring Program produces maps and statistical data for analyzing impacts on California’s agricultural resources. Agricultural land is rated according to soil quality and irrigation

CITY PARK REVIT A LIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis
June 2026 Page 45
status and is divided into five categories: Prime Farmland, Farmland of Statewide Importance, Farmland of Local Importance, Unique Farmland, and Grazing Land. The best quality land is Prime Farmland (CDC 2024).

Farmland of Statewide Importance is similar to Prime Farmland but with minor shortcomings, such as greater slopes or less ability to store soil moisture. Unique Farmland is farmland of lesser quality soils used for the production of the state's leading agricultural crops.

According to the Farmland Mapping and Monitoring Program, the project site and surrounding area are mapped as ‘Urban and Built-up Land’ and do not contain any farmlands nearby, consistent with Figure ER-7, Agricultural Resources, of the Corona General Plan (CDC 2024; Corona 2020). The proposed project would be developed within the confines of the project site, which is currently developed as a park and is surrounded by residential and commercial development. Thus, the proposed project would not convert Prime Farmland, Unique Farmland, or Farmland of Statewide Importance to non-agricultural use. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur.

No changes or new information would require preparation of a supplemental or subsequent EIR. b) Conflict with existing zoning for agricultural use, or a Williamson Act contract? No Impact. The project site is developed with an existing park, which has a zoning designation of Parks (P) and a land use designation of Parks and Open Space Recreational (OS-R) (Corona 2024a). The project site is developed with various parking lots, playgrounds and play equipment, basketball courts, a tennis court, a pool, an amphitheater, shade structures with tables and benches, a skate park, ornamental landscaping, and open park spaces. Since the proposed project is consistent with the existing uses at the project site and zoning, the proposed project would not conflict with existing zoning for agricultural use.

Williamson Act contracts restrict the use of privately owned land for agriculture and compatible open-space uses under contract with local governments; in exchange, the land is taxed based on actual use rather than potential market value. There is no Williamson Act contract in effect on the project site or in the area (CDC 2022). Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.
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))? No Impact. The project site has a zoning designation of Parks (P) and a land use designation of Parks and Open Space Recreational (OS-R) (Corona 2024a). The project site is developed with an existing public park.

No forested land or timberland exists on-site of the vicinity of the project site. Further, the project site is not zoned for forest land or timberland. Therefore, development of the proposed project would not conflict with existing zoning for forestland or timberland. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis

d) Result in the loss of forest land or conversion of forest land to non-forest use? No Impact. The project site is developed with an existing park and in an urbanized area of the city, and no significant forest land uses are present onsite or in the immediate vicinity. Development of the proposed project would not require any changes to the existing environment that could result in the conversion of forest land to non-forest use. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.
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?
No Impact. The project site is developed with an existing park and in an urbanized area of the city, and no significant agricultural or forest land uses are present onsite nor in the immediate vicinity. Development of the proposed project would not result in any changes to the existing environment that could result in the conversion of farmland to nonagricultural uses or forest land to non-forest use. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.

5.2.3 Adopted Mitigation Measures Applicable to the Proposed Project No mitigation measures related to agriculture and forestry were outlined in the 2020 Certified EIR.

CITY PARK REVIT A LIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis
June 2026 Page 47

5.3 AIR QUALITY

5.3.1 Summary of Impacts Identified in the Program EIR
The 2020 Certified EIR concluded that, even after the implementation of mitigation measures, the Approved Project resulted in significant impacts to air quality.

Air Quality Management Plan Consistency
The 2020 Certified EIR identified that the Approved Project would conflict with the South Coast Air Quality Management District (South Coast AQMD) 2016 Air Quality Management Plan (AQMP). Incorporation of Mitigation Measure AQ-2, would reduce long-term criteria air pollutant emissions associated with buildout of the Approved Project. However, due to the magnitude and scale of the land uses that would be developed, no mitigation measures were available that would reduce operation and construction impacts to below a significant level.

Cumulative Air Quality Impacts
The 2020 Certified EIR identified that buildout of the Approved Project would cumulatively contribute to the nonattainment designations of the South Coast Air Basin (SoCAB) and would contribute to known health effects in the basin until the attainment standards are met in the SoCAB. Construction activities and long-term operation associated with the buildout of the Approved Project resulted in air pollutant levels that exceeded South Coast AQMD’s significance thresholds. Implementation of Mitigation Measure AQ-1 and AQ-2 would reduce criteria air pollutant emissions from construction- and operation-related activities to the extent feasible.

However, emissions from the magnitude of the overall land use development associated with the Approved Project would likely exceed the South Coast AQMD regional significance thresholds for construction and operation.

Impacts on Sensitive Receptors: TACs
Operation of industrial and warehousing land uses accommodated under the Approved Project could expose sensitive receptors to substantial concentrations of toxic air contaminants (TACs). South Coast AQMD’s permitting process and Mitigation Measure AQ-3 would ensure TACs from individual development projects would be less than significant. However, implementation of the Approved Project would generate TACs that could contribute to elevated levels in the SoCAB and result in a significant cumulative contribution in terms of health risk.

Impacts on Sensitive Receptors: Criteria Air Pollutants Buildout of the Approved Project would not produce the volume of traffic required to generate carbon monoxide (CO) hotspots and CO hotspots impacts would be less than significant. Mitigation Measures AQ-1 and AQ-2 would reduce localized construction and operation emissions to the extent feasible. However, due to the scale of future development and inclusion of industrial uses potentially close to existing sensitive receptors, the 2020 Certified EIR identified that buildout under the Approved Project would likely generate emissions that exceed South Coast AQMD localized significance thresholds (LSTs) and expose sensitive receptors to substantial criteria air pollutant concentrations.

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Odor Impacts
The 2020 Certified EIR required an odor management plan in compliance with South Coast AQMD Rule 402 for applicable projects, per Mitigation Measure AQ-4, which would ensure odor impacts were minimized to a less than significant level.

5.3.2 Impacts Associated with the Proposed Project
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:

Environmental Issues
Condition 1:

Substantial
Change in
Project
Requiring
Major
Revisions
Condition 2:

Substantial
Change in
Circumstances
Requiring
Major
Revisions
Condition 3:

New
Information
Showing New
or Increased
Significant
Effects
Less Than
Significant
Impact/No
Changes or
New
Information
Requiring
Preparation of
an EIR/MND No Impact
a) Conflict with or obstruct implementation of
the applicable air quality plan? X
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?
X
c) Expose sensitive receptors to substantial
pollutant concentrations? X
d) Result in other emissions (such as those
leading to odors) adversely affecting a
substantial number of people?
X
a) Conflict with or obstruct implementation of the applicable air quality plan? No Impact. The 2020 Certified EIR identified that the Approved Project would conflict with South Coast AQMD's 2016 AQMP. Since the EIR was certified, South Coast AQMD adopted the 2022 AQMP in December 2022 (South Coast AQMD 2022).

As discussed in Section 5.14, Population and Housing, the renovation of the existing park would continue to serve the existing recreational needs of the City and would not induce substantial population growth in the area. Due to the nature of the proposed project, it would not result in a significant increase in employment in the City.

Construction activities associated with the proposed project would result in short-term employment only and would end upon project completion.

Finally, as described in Section 5.3.2(b), the proposed project would not result in a substantial increase in construction, or operation-phase emissions compared to what was analyzed in the 2020 Certified EIR.

Therefore, the proposed project would be consistent with the 2022 AQMP; and its implementation is not anticipated to result in new, or increase the severity of, impacts as it pertains to consistency with the 2022

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AQMP when compared to the 2020 Certified EIR. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR. 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? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. The 2020 Certified EIR identified that construction and operation of the Approved Project would cumulatively contribute to the nonattainment designations of the SoCAB. Various goals and policies in the General Plan along with Mitigation Measure AQ-2 reduced impacts to the extent feasible; however, air quality was identified as a significant and unavoidable impact in the 2020 Certified EIR.

Short-Term Regional Construction Impacts
Construction activities produce combustion emissions from various sources, such as on-site heavy-duty construction vehicles, vehicles hauling materials to and from the site, and motor vehicles transporting the construction crew. Construction of the proposed project would generate criteria air pollutants associated with construction equipment exhaust and fugitive dust from site preparation, grading, building construction, paving, and architectural coating. Air pollutant emissions from construction activities on-site would vary daily as construction activity levels change. Maximum daily construction emissions associated with the proposed project are provided in Table 3, Maximum Daily Regional Construction Emissions. Mitigation measures identified for the Approved Project and applicable to the proposed project were included in the modeling.

Table 3 Maximum Daily Regional Construction Emissions
Construction Phase
Pollutants
(lb/day)1, 2
VOC NOX CO SO2 PM10 PM2.5
Year 2025
Site Preparation 1 15 30 <1 6 3
Grading 1 20 37 <1 3 1
Building Construction 1 10 18 <1 1 <1
Year 2026
Building Construction 1 10 17 <1 1 <1
Year 2027
Building Construction 1 10 17 <1 1 <1
Year 2028
Building Construction 1 10 17 <1 1 <1
Building Construction, Paving, and Architectural Coating 8 17 30 <1 1 <1 Maximum Daily Construction Emissions
Maximum Daily Emissions 8 20 37 <1 6 3

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Table 3 Maximum Daily Regional Construction Emissions
Construction Phase
Pollutants
(lb/day)1, 2
VOC NOX CO SO2 PM10 PM2.5
South Coast AQMD Regional Construction Threshold 75 100 550 150 150 55 Significant? No No No No No No
Source: CalEEMod Version 2022.1. South Coast AQMD 2023. 1 Based on the preliminary information provided by the City. Where specific information regarding project-related construction activities was not available, construction assumptions were based on CalEEMod defaults, which are based on construction surveys conducted by South Coast AQMD of construction equipment. 2 Includes implementation of fugitive dust control measures required by South Coast AQMD under Rule 403, including watering disturbed areas a minimum of three times per day, reducing speed limit to 25 miles per hour on unpaved surfaces, replacing ground cover quickly, and street sweeping with Rule 1186–compliant sweepers. Also includes implementation of Mitigation Measure AQ-1, which requires use of Tier 4 interim construction equipment.

The SoCAB is designated nonattainment for O3, PM10, PM2.5 under the State standards and nonattainment for O3 and PM2.5 for Federal standards (CARB 2024). According to South Coast AQMD methodology, any project that does not exceed or can be mitigated to less than the daily threshold values would not add significantly to a cumulative impact (South Coast AQMD 1993). As shown in Table 3, the maximum daily construction emissions for all criteria air pollutants would be less than their respective South Coast AQMD regional construction thresholds.

The proposed project would not result in a substantial increase in magnitude of maximum daily air pollutant emissions compared to what was evaluated under the approved land uses in the 2020 Certified EIR. Overall, there would be no new significant impacts and no substantial increase in the severity of any previously identified significant impact in the 2020 Certified EIR. Preparation of a supplemental or subsequent EIR is not required by CEQA.

Long-Term Regional Operational Impacts
Typical long-term air pollutant emissions are generated by area sources (e.g., landscape fuel use, aerosols, architectural coatings, and asphalt pavement), energy use (natural gas), and mobile sources (i.e., on-road vehicles). The proposed project involves redevelopment of Corona City Park. Typically, the primary source of long-term criteria air pollutant emissions generated by a project are mobile emissions from project-generated vehicle trips. Although programming for new events would increase vehicle trips to the project site, the proposed project would redistribute existing vehicle trips for existing events that are already occurring in the City and the future events would not have greater capacity than the current events. Therefore, the proposed project would not generate an increase in VMT in the City. Moreover, the 19.6-acre project site was evaluated as recreation under the approved land uses in the 2020 Certified EIR.

As shown in Table 4, Maximum Daily Regional Operation Emissions, it is anticipated that operation of the proposed project would result in emissions that would not exceed the South Coast AQMD regional operation-phase significance thresholds.

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Table 4 Maximum Daily Regional Operation Emissions
Source
Maximum Daily Emissions (lbs/Day)
VOC NOX CO SO2 PM10 PM2.5
Emissions
Area 2 <1 3 <1 <1 <1
Energy <1 1 1 <1 <1 <1
Total 2 1 3 <1 <1 <1
South Coast AQMD Regional
Threshold 55 55 550 150 150 55
Exceeds Threshold? No No No No No No
Source: CalEEMod Version 2022.1.

Notes: lbs: Pounds. Highest winter or summer emissions report. Mobile trips not modeled since proposed project would redistribute existing vehicle trips in the City and not increase VMT.

As shown in Table 4, the proposed project would generate nominal operational criteria air pollutant emissions compared to the South Coast AQMD regional significance thresholds and emissions generated by the Approved Project. Additionally, emissions from building energy use would be minimized because the new community building and restrooms would meet the current California Building and Energy Efficiency Standards—future iterations of the California Building Standards Code are assumed to achieve greater energy efficiency performance. Therefore, buildout of the proposed project would not result in a substantial increase in operation-phase emissions compared to what was analyzed in the 2020 Certified EIR.

The proposed project does not identify or require adoption of any further mitigation measures beyond those provided in the 2020 Certified EIR. The proposed project compared to the Approved Project would not result in any new impacts or increase the severity of impacts with respect to cumulatively contributing to the nonattainment designations of the SoCAB. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR. c) Expose sensitive receptors to substantial pollutant concentrations? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND.

Localized Impacts: LSTs
The 2020 Certified EIR identified that buildout under the Approved Project would likely generate emissions that exceed South Coast AQMD LSTs and expose sensitive receptors to substantial criteria air pollutant concentrations. Impacts to sensitive receptors were found to be significant and unavoidable.

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Operational LSTs
Types of land uses that typically generate substantial quantities of criteria air pollutants include industrial (stationary sources) and warehousing (truck idling) land uses. The proposed project would involve redevelopment of Corona City Park. Thus, the type of land use proposed under the proposed project would not be expected to generate substantial quantities of criteria air pollutants. Overall, it is not anticipated that development of the land uses accommodated under the proposed project would result in new or increased severity of operation-related localized air quality impacts compared to the land uses considered in the 2020 Certified EIR.

Construction
LSTs are based on the California AAQS, which are the most stringent AAQS to provide a margin of safety in the protection of public health and welfare (South Coast AQMD 2008). They are designated to protect sensitive receptors most susceptible to further respiratory distress, such as asthmatics, the elderly, very young children, people already weakened by other disease or illness, and people engaged in strenuous work or exercise. The screening-level construction LSTs are based on the size of the project site, distance to the nearest sensitive receptor, and Source Receptor Area (SRA). The nearest off-site sensitive receptors are the single-family residences along Quarry Street to the north, mobile homes along Rimpau Avenue to the east, apartments along East 6th Street to the south, and single-family residences along East Grand Boulevard to the west.

Air pollutant emissions generated by construction activities would cause temporary increases in air pollutant concentrations. Table 5, Localized Construction Emissions, shows the maximum daily construction emissions (pounds per day) generated during onsite construction activities compared with the South Coast AQMD’s screening-level LSTs, for sensitive receptors within 82 feet for NOX, CO, PM10, and PM2.5. As shown in Table 3, the construction of the proposed project would not generate construction-related on-site emissions that would exceed the screening-level LSTs. Thus, project-related construction activities would not have the potential to expose sensitive receptors to substantial pollutant concentrations, and localized air quality impacts from construction activities would be less than significant.

Table 5 Localized Construction Emissions
Construction Activity
Pollutants(lbs/day)1
NOX CO PM102 PM2.52
South Coast AQMD 1.31 Acre LST 134 778 4.62 3.62
Building Construction 2025 9 15 0.11 0.11
Building Construction 2026 9 15 0.11 0.10
Building Construction 2027 9 15 0.10 0.09
Building Construction 2028 9 15 0.09 0.09
Building Construction 2028, Paving, and Architectural Coating 17 27 0.20 0.18 South Coast AQMD 3.50 Acre LST 220 1,353 9.00 6.50
Site Preparation 15 28 5.40 2.75

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Table 5 Localized Construction Emissions
Construction Activity
Pollutants(lbs/day)1
NOX CO PM102 PM2.52
South Coast AQMD 4.00 Acre LST 237 1,469 9.99 7.00
Grading 19 35 2.78 1.14
Exceeds LST? No No No No
Sources: CalEEMod Version 2022.1; South Coast AQMD 2008, 2011.

Notes: In accordance with South Coast AQMD methodology, only onsite stationary sources and mobile equipment are included in the analysis. Screening level LSTs are based on an 82 ft receptor for NOX, CO, PM10 and PM2.5 in SRA 22. 1 Where specific information for project-related construction activities or processes was not available modeling was based on CalEEMod defaults. These defaults are based on construction surveys conducted by the South Coast AQMD. 2 Includes fugitive dust control measures required by South Coast AQMD under Rule 403, such as watering disturbed areas a minimum of three times per day, reducing speed limit to 25 miles per hour on unpaved surfaces, replacing ground cover quickly, and street sweeping with Rule 1186–compliant sweepers. Also includes implementation of Mitigation Measure AQ-1, which requires use of Tier 4 interim construction equipment.

Development under the proposed project would not introduce new types of construction processes or activities compared to what was previously considered in the 2020 Certified EIR. Additionally, the proposed project would not result in developing a new area because the project site was considered as open space recreational usage under the 2020 Certified EIR. Thus, it is not anticipated that development of the land uses accommodated under the proposed project would result in new or increase the severity of construction-related LST impacts compared to the land uses considered for the project site in the 2020 Certified EIR.

Localized Health Risk
The 2020 Certified EIR identified that operation of industrial and warehousing land uses accommodated under the Approved Project could expose sensitive receptors to substantial concentrations TACs that could contribute to elevated levels in the SoCAB and result in a significant cumulative contribution in terms of health risk.

Operational Health Risk
The proposed project is not an industrial or warehousing type land use that would generate substantial TAC emissions. No impact would occur, and the proposed project would result in new or increase the severity of health risk impacts compared to that identified in the 2020 Certified EIR. Therefore, no changes or new information would require preparation of a subsequent EIR.

Construction Health Risk
Emissions from construction equipment primarily consist of diesel particulate matter (DPM). In 2015, the Office of Environmental Health Hazards Assessment (OEHHA) adopted guidance for preparation of health risk assessments, which included the development of a cancer risk factor and non-cancer chronic reference exposure level for DPM over a 30-year time frame (OEHHA 2015). Currently, South Coast AQMD does not require the evaluation of long-term excess cancer risk or chronic health impacts for a short-term project. The proposed project is anticipated to be completed in approximately 48 months, which would limit the exposure to offsite receptors. Furthermore, construction activities would not generate on-site exhaust emissions that would exceed the screening-level construction LSTs.

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As mentioned previously, improvements under the proposed project would not introduce new types of construction processes or activities compared to what was previously considered in the 2020 Certified EIR.

Thus, it is not anticipated that construction of the land uses accommodated under the proposed project would result in new or increase the severity of construction-related health risk impacts compared to the land uses considered for the project site in the 2020 Certified EIR. Therefore, no changes or new information would require preparation of a subsequent EIR.

CO Hotspot
Buildout of the Approved Project would not produce the volume of traffic required to generate CO hotspots, and CO hotspots impacts would be less than significant.

As described above, the proposed project would not result in an increase in vehicle trips or VMT in the City.

The proposed project would not result in any new impacts or increase the severity of impacts with respect to exposing sensitive receptors to substantial pollutant concentrations compared to the 2020 Certified EIR.

Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.
d) Result in other emissions (such as those leading to odors) adversely affecting a substantial number of people?
No Impact. Nuisance odors from land uses in the SoCAB are regulated under South Coast AQMD Rule 402, Nuisance, which states:

A person shall not discharge from any source whatsoever such quantities of air contaminants or other material which cause injury, detriment, nuisance, or annoyance to any considerable number of persons or to the public, or which endanger the comfort, repose, health or safety of any such persons or the public, or which cause, or have a natural tendency to cause, injury or damage to business or property. The provisions of this rule shall not apply to odors emanating from agricultural operations necessary for the growing of crops or the raising of fowl or animals.

The type of facilities that are considered to have objectionable odors include wastewater treatments plants, chemical manufacturing, sanitary landfill, fiberglass manufacturing, transfer station, painting/coating operations (e.g., autobody shops), composting facility, food processing facility, petroleum refinery, feed lot/dairy, asphalt batch plant, and rendering plant.

The 2020 Certified EIR identified that odors generated within the City would not affect a substantial number of people with implementation of Mitigation Measure AQ-4, and impacts would be less than significant. The proposed project involves the redevelopment of Corona City Park and would not fall within the objectionable odors land uses or generate odors different than the land uses accommodated under the 2020 Certified EIR.

Emissions from construction equipment, such as diesel exhaust and from volatile organic compounds associated with architectural coatings and paving activities, may generate odors. However, these odors would

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be temporary and intermittent, and are not expected to affect a substantial number of people. In addition, land uses accommodated under the proposed project would be subject to South Coast AQMD Rule 402, which would contribute to minimizing odor-related nuisances.

Compared to the land uses considered for the project site in the 2020 Certified EIR, the types of land uses accommodated under the proposed project would result in similar construction odors. It is not anticipated that the proposed project would introduce or require any new construction processes that would generate substantial odors compared with what was previously considered in the 2020 Certified EIR. Therefore, buildout of the proposed project is not anticipated to result in new significant impacts or impacts of greater severity pertaining to objectionable odors compared to the 2020 Certified EIR. No changes or new information would require preparation of a supplemental or subsequent EIR.

5.3.3 Adopted Mitigation Measures Applicable to the Proposed Project The following mitigation measures were taken directly from the 2020 Certified EIR and would be incorporated as part of the proposed project. Any modifications to these mitigation measures are shown in strikethrough for deleted text and underline for new, inserted text.

The following mitigation measure has been modified to reduce the proposed project's potentially significant construction-related LST impacts.

AQ-1 Prior to discretionary approval by the City of Corona for development projects subject to CEQA (California Environmental Quality Act) review (i.e., non-exempt projects), project applicants shall prepare and submit a technical assessment evaluating potential project construction-related air quality impacts to the City of Corona Planning Division for review and approval. The evaluation shall be prepared in conformance with South Coast Air Quality Management District (SCAQMD) methodology for assessing air quality impacts. If construction-related criteria air pollutants are determined to have the potential to exceed the SCAQMD-adopted thresholds of significance, the City of Corona shall require that applicants for new development projects incorporate mitigation measures to reduce air pollutant emissions during construction activities. The City of Corona shall require the following These identified measures to 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 Division. Mitigation measures to reduce construction-related emissions shall include could include, but are not limited to:
 Requiring Require the following fugitive-dust control measures that exceed SCAQMD’s Rule 403, such as:
 Use of nontoxic soil stabilizers to reduce wind erosion.  Applying water every four two and half hours to active soil-disturbing activities, or a minimum of three times per day.

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 Tarping and/or maintaining a minimum of 24 inches of freeboard on trucks hauling dirt, sand, soil, or other loose materials.
 Using Use construction equipment rated by the United States Environmental Protection Agency as having Tier 3 (model year 2006 or newer) or Tier 4 (model year 2008 or newer) Interim or stricter emission limits for all off-road construction equipment, applicable for engines between 50 and 750 horsepower.
 Ensureing that 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.
 Limiting on-site vehicle travel speeds on unpaved roads to 1525 miles per hour.  Installing wheel washers for all exiting trucks or wash off all trucks and equipment leaving the project area.
 Using Super-Compliant VOC paints for coating of architectural surfaces whenever possible. A list of Super-Compliant architectural coating manufactures can be found on the SCAQMD’s website at http://www.aqmd.gov/docs/default-source/planning/ architectural-coatings/super-compliant-manf-list.pdf?sfvrsn=71.

The following mitigation measure is not applicable to the proposed project because operational emissions from the renovated park would not exceed South Coast AQMD’s significance thresholds.

AQ-2 Prior to discretionary approval by the City of Corona for development projects subject to CEQA (California Environmental Quality Act) review (i.e., non-exempt projects), project applicants shall prepare and submit a technical assessment evaluating potential project operation phase-related air quality impacts to the City of Corona Planning Division for review and approval. The evaluation shall be prepared in conformance with South Coast Air Quality Management District (SCAQMD) methodology in assessing air quality impacts. If operationrelated air pollutants are determined to have the potential to exceed the SCAQMD-adopted thresholds of significance, the City of Corona Planning Division 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 emissions.

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 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 § 2485).
 Provide changing/shower facilities as specified in Section A5.106.4.3 of the CALGreen Code (Nonresidential Voluntary Measures).
 Provide bicycle parking facilities per Section A4.106.9 (Residential Voluntary Measures) of the CALGreen Code.
 Provide preferential parking spaces for low-emitting, fuel-efficient, and carpool/van vehicles per Section A5.106.5.1 of the CALGreen Code (Nonresidential Voluntary Measures).
 Provide facilities to support electric charging stations per Section A5.106.5.3 (Nonresidential Voluntary Measures) and Section A5.106.8.2 (Residential Voluntary Measures) of the CALGreen Code.
 Applicant-provided appliances shall be Energy Star-certified 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 Building & Safety during plan check.
 Applicants for future development projects along existing and planned transit routes shall coordinate with the City of Corona and Riverside Transit to ensure that bus pad and shelter improvements are incorporated, as appropriate.

The following mitigation measure is not applicable to the proposed project because the proposed project is not an industrial or warehouse project.

AQ-3 Prior to discretionary approval by the City of Corona, project applicants for new industrial or warehousing development projects that 1) have the potential to generate 100 or more diesel truck trips per day or have 40 or more trucks with operating diesel-powered transport refrigeration units, and 2) are within 1,000 feet of a sensitive land use (e.g., residential, schools, hospitals, or nursing homes), as measured from the property line of the project to the property line of the nearest sensitive use, shall submit a health risk assessment (HRA) to the City of Corona Planning Division for review and approval. The HRA shall be prepared in accordance with policies and procedures of the state Office of Environmental Health Hazard Assessment and the South Coast Air Quality Management District. If the HRA shows that the incremental cancer risk and/or noncancer hazard index exceed the respective thresholds, as established by

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the SCAQMD at the time a project is considered, the project applicant will be required to identify and demonstrate that best available control technologies for toxics (T-BACTs), including appropriate enforcement mechanisms, are capable of reducing potential cancer and noncancer risks to an acceptable level. T-BACTs may include, but are not limited to, restricting idling onsite or electrifying warehousing docks to reduce diesel particulate matter, or requiring use of newer equipment and/or vehicles. T-BACTs identified in the HRA shall be identified as mitigation measures in the environmental document and/or incorporated into the site plan.

The following mitigation measure is not applicable to the proposed project because the proposed project does not have the potential to generate nuisance odors.

AQ-4 Prior to discretionary approval by the City of Corona, if it is determined that a development project has the potential to emit nuisance odors beyond the property line, an odor management plan shall be prepared by the project applicant and submitted to the City of Corona Planning Division for review and approval. Facilities that have the potential to generate nuisance odors include, but are not limited to:
 Wastewater treatment plants
 Composting, green waste, or recycling facilities
 Fiberglass manufacturing facilities
 Painting/coating operations
 Large-capacity coffee roasters
 Food-processing facilities
The odor management plan shall demonstrate compliance with the South Coast Air Quality Management District’s Rule 402 for nuisance odors. The Odor Management Plan shall identify the best available control technologies for toxics (T-BACTs) that will be utilized to reduce potential odors to acceptable levels, including appropriate enforcement mechanisms. T-BACTs may include but are not limited to scrubbers (i.e., air pollution control devices) at the industrial facility. T-BACTs identified in the odor management plan shall be identified as mitigation measures in the environmental document prepared for the development project and/or incorporated into the project’s site plan.

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5.4 BIOLOGICAL RESOURCES

5.4.1 Summary of Impacts Identified in the Program EIR
The 2020 Certified EIR concluded that, even after the implementation of mitigation measures, the Approved Project resulted in less than significant impacts to biological resources.

Sensitive Species
A substantial portion of the City is highly urbanized and provides minimal habitat value for sensitive and special status species. However, much of the SOI is undeveloped and includes areas with agriculture and natural vegetation. The City and SOI include or are adjacent to critical habitat for five species (least Bell’s vireo, western yellow-billed cuckoo, southwestern willow flycatcher, Santa Ana sucker, and the coastal California gnatcatcher) near the Prado Basin, Chino Hills State Park, and along the foothills of the Cleveland National Forest.

Additionally, six sensitive natural communities (Southern California Arroyo Chub/Santa Ana Sucker Stream, Southern Coast Live Oak Riparian Forest, Southern Cottonwood Willow Riparian Forest, Southern Riparian Forest, and Southern Sycamore Alder Riparian Woodland, and Southern Willow Scrub) have California Natural Diversity Database (CNDDB) records within the City and SOI. Further, the City is a participant in the Western Riverside Multiple Species Habitat Conservation Plan and a long-term (30-year) HCP for Stephens’ kangaroo rat (Dipodomys stephensi). Adherence to the MSHCP, Stephen’s Kangaroo Rat HCP, and the City’s policies protecting biological resources would assist in reducing impacts.

Buildout of the General Plan would impact sensitive plant and animal species in the City and SOI. Mitigation Measure BIO-1 would require that future development projects conduct a biological resources assessment in compliance with the CESA and FESA to determine if sensitive biological resources could be present within and/or adjacent to the proposed development project. Sensitive biological resources include special status species, sensitive natural communities, wetlands and jurisdictional waters, wildlife movement corridors and nursery sites, and other items identified in Appendix G of the CEQA Guidelines. Each project proponent would be responsible for determining the potential for occurrence of and impacts to sensitive vegetation communities, special status species, wildlife movement corridors, and nursery sites. Implementation of Mitigation Measures BIO-1 through BIO-4 would ensure that impacts to special status species are avoided and/or minimized and impacts were determined to be less than significant.

Wetlands and Riparian Habitat
There are several ephemeral washes that traverse the City and SOI, and artificial (created) lakes and ponds.

Specifically, these water resources may support biological resources, including riparian vegetation and associated wildlife species. A CNDDB query identified 12 special status natural communities that occur within the study area including six sensitive habitats. All of the sensitive communities documented in the study area are associated with ephemeral or perennial water features, such as streams and washes. Goals and policies under the Environmental Resources Element would help conserve, protect, and manage Corona’s biological resources, including natural and open space areas, habitats, hillsides, and wildlife. Mitigation Measure BIO-5 would require preparation of jurisdictional delineations mapping waters, wetlands, and riparian habitats jurisdictional to the Corps, CDFW, and RWQCB and specifying impacts to such resources. Mitigation Measure BIO-5 would also

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require project applicants to obtain permits and authorizations from the Corps, CDFW, and RWQCB specifying measures to avoid, minimize, and mitigate impacts. Impacts to jurisdictional riparian habitats were determined to be less than significant.

Wetlands and Jurisdictional waters
Development in accordance with the General Plan could impact waters and wetlands jurisdictional to the CDFW, Corps, and Santa Ana RWQCB. The City of Corona has a number of potential wetlands and riparian habitats that may be regulated by the Corps, CDFW, and/or Santa Ana RWQCB pursuant to several federal and state regulations. The proposed Environmental Resources Element includes goals and policies that minimize potential impacts to jurisdictional waters and wetlands for future development within Corona.

However, future development projects built in accordance with the General Plan could potentially impact these impact jurisdictional waters and/or wetlands directly or indirectly. Mitigation Measure BIO-5 would also require project applicants to obtain permits and authorizations from the Corps, CDFW, and RWQCB specifying measures to avoid, minimize, and mitigate impacts. Impacts to jurisdictional riparian habitats were determined to be less than significant.

Wildlife Movement
The primary wildlife movement and migratory corridors around the City and SOI include the Chino Hills State Park, Cleveland National Forest, Prado Basin, and the Lake Matthews Area. Generally, the City is developed and includes minimal opportunities for wildlife movement through the City. However, the SOI has significantly more open space area suitable for wildlife habitat and open spaces areas within the built environment of the City and SOI provides refuge for some wildlife species, particularly birds and small animals such as lizards and butterflies. Future development in accordance with the proposed General Plan could disrupt wildlife linkages.

The Environmental Resources Element identifies several policies to reduce impacts to wildlife movement.

Despite adherence to the General Plan policies, development within the City could still interfere with the regional and local wildlife movement connections. Mitigation Measure BIO-6 specifies measures to be taken, to the extent practicable, to minimize impacts on wildlife movement. Impacts on wildlife movement were determined to be less than significant.

Migratory Birds
A number of migratory bird species are known to occur within the City, and buildout of the Approved Project could impact these migratory birds through future development and removal of vegetation that could be used for nesting. Adherence to the Migratory Bird Treaty Act (MBTA) and California Fish and Game Code would reduce impacts. Mitigation Measure BIO-7 would require preconstruction general nesting bird surveys and avoidance of impacts to active nests of bird species protected by federal and state laws. Impacts to migratory birds were determined to be less than significant.

Natural Community Conservation Plans/Habitat Conservation Plan The City is a participant in the Western Riverside County MSHCP, which also administers the long-term (30- year) HCP for Stephens’ kangaroo rat. Buildout of the Approved Project would not conflict with Chapter

12.22, Community Forestry Program, of the Corona Municipal Code. Implementation of the General Plan

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would not conflict with an adopted habitat conservation plan, natural community conservation plan, or local ordinance. Therefore, impacts were determined to be less than significant.

5.4.2 Impacts Associated with the Proposed Project
Would the project:

Environmental Issues
Condition 1:

Substantial
Change in
Project
Requiring
Major
Revisions
Condition 2:

Substantial
Change in
Circumstances
Requiring
Major
Revisions
Condition 3:

New
Information
Showing New
or Increased
Significant
Effects
Less Than
Significant
Impact/No
Changes or
New
Information
Requiring
Preparation of
an EIR/MND No Impact
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
Wildlife or U.S. Fish and Wildlife Service?
X
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 Wildlife or
U.S. Fish and Wildlife Service?
X
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?
X
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?
X
e) Conflict with any local policies or ordinances
protecting biological resources, such as a
tree preservation policy or ordinance?
X
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?
X

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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 Wildlife or U.S. Fish and Wildlife Service? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. The Biological Technical Report prepared for the proposed project did not identify any sensitive natural communities on the project site; therefore, no impacts to such communities would occur (see Appendix B). The report’s literature review documented 66 special-status plant species and 55 special-status wildlife species in the vicinity of the project site. However, due to the lack of suitable habitat on-site, none of the special-status plant species are expected to occur within the project site. Of the 55 wildlife species, 54 lack suitable habitat on the project site, while two special-status bat species have only a low potential to occur.

The western yellow bat and pallid bat, both CDFW Species of Special Concern, have a low potential to occur on the project site. Suitable roosting habitat is present in buildings and trees, including palms and eucalyptus.

Given the site’s abundance of trees and central location in an urban environment, it likely serves as foraging habitat for bats. If bats are found roosting on-site, direct impacts could include mortality or roost abandonment.

Roost abandonment during the maternity season could result in the death of flightless young, potentially violating California Fish and Game Code Section 4150 and constituting a significant impact to a native wildlife nursery site under CEQA. Even outside the maternity season, disturbance causing bats to leave roosts during daytime hours may result in mortality. Indirect impacts may also occur due to reduced prey availability from loss or modification of foraging habitat, which could force bats to travel longer distances, increasing mortality risk or causing failure of a maternity colony, as insufficient foraging can prevent bats from successfully migrating, nursing, or hibernating (ECORP 2024). With the implementation of 2020 Certified EIR Mitigation Measures, BIO-1 through BIO-3, impacts associated with the proposed project would be reduced to less than significant. Mitigation Measure BIO-1 would require a focused survey, including a bat habitat assessment and management plan to address the impacts to the identified special status species. The bat habitat assessment and management plan and tree avoidance and removal would be prepared by a qualified bat biologist prior to the commencement of project-related activities that will include specific avoidance and minimization measures to reduce impacts to roosting bats. Due to the potential presence of sensitive species, Mitigation Measure BIO-2 is required, which would ensure that construction limits be clearly flagged, with a qualified biologist verifying the flagging, and sensitive resources are avoided, and Mitigation Measure BIO-4 would require a contractor training program to minimize impacts to the two sensitive species. Further, with implementation of Mitigation Measures BIO-1 through BIO-4, the proposed project would not include new or substantially more significant impacts than those analyzed in the 2020 Certified EIR. No new information would require preparation of a supplemental or subsequent EIR.
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 Wildlife or U.S. Fish and Wildlife Service?
No Impact. Sensitive natural communities are natural communities that are considered rare in the region by regulatory agencies, are known to provide habitat for sensitive animal or plant species, or are known to be important wildlife corridors. The project site is within the Western Riverside County Multiple Species Habitat Conservation Plan (MSHCP). However, the Biological Technical Report prepared for the proposed project

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(Appendix B) identified that the project site is not within any conservation area or any species survey areas.

Although Quarry Street and East 6th Street to the north and south of the project site are identified as MSHCPcovered roads, the proposed project would not impact these roads.

No sensitive natural communities or jurisdictional aquatic resources are within the project site; therefore, no impacts to jurisdictional aquatic resources would occur. Additionally, in accordance with the MSHCP, the Biological Technical Report includes a habitat assessment for riparian and riverine communities, vernal pools, and fairy shrimp. However, no MSHCP riparian/riverine resources were observed within the project site during the biological reconnaissance survey conducted for the project site, and the reconnaissance survey determined that the project site does not contain suitable habitat for riparian bird species, including southwestern willow flycatcher, least Bell’s vireo, and western, yellow-billed cuckoo (Appendix B). Therefore, as with the Approved Project, no impacts would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR. 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?
No Impact. As discussed above in Section 5.4.2(a), the Biological Technical Report identified that the project site does not contain any jurisdictional aquatic resources, MSHCP riparian/riverine resources, or suitable habitat for riparian bird species. Additionally, due to the urban/developed nature of the project site there is no evidence of vernal pools or habitat to support listed fairy shrimp species within the project site, and vernal pool fairy shrimp has no potential to occur (Appendix B). Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR. 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?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. The project site is in an urbanized area of the City of Corona. The project site is developed with the existing Corna City Park and associated park facilities. No sensitive natural communities within the project site. Although the project site may provide space for local movements and foraging by common urban wildlife, it does not function as a wildlife corridor. However, the Biological Technical Report identified a suitable batroosting habitat on the project site (Appendix B). If bats are found roosting in these features during the bat maternity season (April 1 through August 31), these roosts would be considered native wildlife nursery sites and would be protected under CEQA. Direct impacts to occupied bat roosts could include removal or destruction that could result in direct mortality, and indirect impacts from noise, dust, and vibration during project construction that could result in roost abandonment and mortality of flightless young (ECORP 2024).

Impacts to maternity bat roosts would be reduced to less than significant with the implementation of Mitigation Measure BIO-1.

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Additionally, the proposed project would remove a variety of trees on-site, which could have a potential impact on nesting birds. Nesting birds are protected by the Migratory Bird Treaty Act (MBTA) which governs the taking, killing, possession, transportation, and importation of migratory birds, their eggs, parts, and nests (US Code, Title 16, Sections 703–712). The MBTA prohibits the take, possession, import, export, transport, sale, purchase, barter, or offering of these activities, except under a valid permit or as permitted in the implementing regulations. The United States Fish and Wildlife Service administers permits to take migratory birds in accordance with the MBTA. Compliance with the existing California Department of Fish and Wildlife regulations and implementation of Mitigation Measure BIO-7 would ensure that impacts remain less than significant to nesting and migratory birds. With implementation of Mitigation Measures BIO-1 and BIO-7, the proposed project would not include new or substantially greater significant impacts than those analyzed in the 2020 Certified EIR. No new information would require preparation of a supplemental or subsequent EIR. e) Conflict with any local policies or ordinances protecting biological resources, such as a tree preservation policy or ordinance?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. An arborist report was prepared for the proposed project (see Appendix C) and concluded that the project site contains a total of 384 trees, which are primarily ornamental trees with a few native trees. To construct the proposed project, 275 trees would be removed, and 59 trees would be relocated. Of the trees assessed to be relocated, 2 have been removed, 2 are dead, and 13 are not considered suitable candidates due to several factors. The proposed project would preserve 46 mature trees, which would remain in place with tree protection fencing during construction. Due to the removal of trees within the project site and parkway areas, which are adjacent to a public street, the proposed project would be required to adhere to City Municipal Code Chapter 12.22, Community Urban Forest and Landscape, which outlines standards for planning, planting, maintenance, alteration, and removal of all City trees (Corona 2024). Per Section 2.22.060, “Parkways: alteration or removal of trees and landscape materials,” the City may alter, remove, and plant any landscape materials or trees on or in parkways maintained as part of a landscape maintenance district or a community facilities district. Any trees planted in parkways must be on the City Maintenance Service Department’s Approved Street Tree List (Corona 2014). Additionally, if any trees on-site are identified as “heritage trees,” as outlined in the City’s Urban Forest Management Plan, their removal would require approval of the Community Services Department and Parks and Recreation Commission (Corona 2024).

Additionally, the proposed project would adhere to other biological policies within the General Plan, including but not limited to ER-6.3, ER-6.4, ER-6.5, and ER-7.1, which require adherence to the MSHCP conservation areas and biological resources (Corona 2023). Therefore, as with the Approved Project, with adherence to local policies and ordinances, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR. 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? No Impact. Although the project site is within the Western Riverside MSHCP planning area, the site is not located within any conservation areas or within a species survey area (ECORP 2024). Therefore, the proposed

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project would not conflict with the provisions of the Western Riverside MSHCP or other approved local, regional, or state conservation plan. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.

5.4.3 Adopted Mitigation Measures Applicable to the Proposed Project The following mitigation measures were taken directly from the 2020 Certified EIR and would be incorporated as part of the proposed project. Any modifications to these mitigation measures are shown in strikethrough for deleted text and underline for new, inserted text.

The following mitigation measure has been modified to reduce the proposed project's potentially significant impacts on biological resources.

BIO-1 Applicants for future development projects shall include a biological resources survey. The biological resources survey shall be conducted by a qualified biologist. The biological resources survey shall include, but not be limited to:
 An analysis of available literature and biological databases, such as the California Natural Diversity Database, to determine sensitive biological resources that have been reported historically from the proposed development project vicinity.  A review of current land use and land ownership within the proposed development project vicinity.
 An assessment and mapping of vegetation communities present within the proposed development project vicinity.
 An evaluation of potential local and regional wildlife movement corridors.  A general assessment of potential jurisdictional areas, including wetlands and riparian habitats.

Habitat Assessment. If the proposed development project site supports vegetation communities that may provide habitat for plant or wildlife species, a focused habitat assessment shall be conducted by a qualified biologist to determine the potential for special status plant and/or animal species to occur within or adjacent to the proposed development project area. Adjoining properties should also be surveyed where direct or indirect project effects, such as those from fuel modification or herbicide application, could potentially extend off-site. If feasible, the habitat assessment should be conducted during non-drought years.

Vegetation communities should be classified and mapped to the alliance or association level using classification methods and membership rules according to A Manual of California Vegetation, 2nd edition (2009).

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Focused Surveys. If one or more special status species has the potential to occur within the proposed development project area, focused species surveys shall be conducted to determine the presence/absence of these species to adequately evaluate potential direct and/or indirect impacts to these species. The focused survey shall record the location and boundary of special status species by use of global positioning system (GPS). The number of individuals in each special status plant population shall be provided as counted (if population is small) or estimated (if population is large). If applicable, information about the percentage of individuals in each life stage, such as seedlings vs. reproductive individuals, should be provided.

If feasible, images of the target species and representative habitats should be included to support information and descriptions.

Preconstruction Surveys. If construction activities are not initiated immediately after focused surveys have been completed, additional preconstruction special status species surveys may be required to ensure impacts are avoided or minimized to the extent feasible. If preconstruction activities are required, a qualified biologist would perform these surveys as required for each special status species that is known to occur or has a potential to occur within or adjacent to the proposed development project area.

Biological Resources Report. The results of the biological survey for proposed development projects with no significant impacts may be presented in a biological survey letter report. For proposed development projects with significant impacts that require mitigation to reduce the impacts to below a level of significance, the results of the biological survey shall be presented in a biological technical report.

Bat Habitat Assessment and Management Plan. If tree removal and/or building demolition will occur as part of the Project, a focused bat habitat assessment will be conducted by a bat biologist prior to commencement of tree removal and/or building demolition activities. If the bat biologist determines that only tree roosting habitat is present, then a Bat Management Plan will not be required. If the bat biologist determines that structure habitat is present, then a Bat Management Plan shall be prepared by a qualified bat biologist prior to the commencement of Project-related activities (including, but not limited to, structure removal or demolition, tree removal, grading, and vegetation removal) that will include specific avoidance and minimization measures to reduce impacts to roosting bats. The project-specific Bat Management Plan may include any of the following as necessary and appropriate:
additional habitat assessments of inaccessible areas that would be directly or indirectly impacted during Project activities, emergence and/or acoustic surveys for bats during the maternity season (April 1 through August 31) to assess the potential for bat maternity roosts in the project site, and pre-construction surveys for roosting bats including acoustic monitoring. The Bat Management Plan shall also include recommendations to minimize impacts to roosting bats including the implementation of no-disturbance buffers, tree- and cliff-swallow nest removal protocols, passive exclusion of bats outside of the maternity and hibernation seasons (if impacts are unavoidable), and/or species-specific replacement alternative roosting habitat.

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Tree Avoidance and Removal Process. If trees are scheduled to be removed (e.g., relocating) or modified (e.g., trimming) that were determined to be suitable for bat roosting as part of the Bat Habitat Assessment (BIO-1), these activities shall be scheduled during one of the seasonal periods of bat activity, listed below, and when evening temperatures are not below 45 ˚F and rain is not over 0.5 inch in 24 hours:
 September 1 to October 31 (preferred): This is after the maternity season but prior to winter torpor.
 February 15 to March 31: After winter torpor but prior to the start of the maternity season.

If trees with suitable bat roosting habitat are scheduled for removal or relocation outside of the maternity season, tree removal during the time periods and weather parameters described above using the two-step method shall be conducted:
 Prior to the two-step method, as much as feasible, vegetation and trees within the area that are not suitable for roosting bats will be removed first to provide a disturbance that might reduce the likelihood of bats using the habitat.
 Two-step tree removal will occur over two consecutive days under the supervision of a qualified bat biologist. On Day 1, small branches and small limbs containing no cavity, crevice or exfoliating bark habitat on habitat trees (or outer fronds in the case of palm trees), as identified by a qualified bat biologist are removed first, using chainsaws only (i.e., no dozers, backhoes). The following day (Day 2), the remainder of the tree is to be felled/removed. (The intention of this method is to disturb the tree with noise and vibration and branch removal on Day 1. This should cause any potentially present dayroosting bats to abandon the roost tree after they emerge for nighttime foraging.

Removing the tree quickly the next consecutive day should avoid reoccupation of the tree by bats).

If tree removal/modification must occur during the maternity season (April 1 to August 31), a qualified bat biologist shall conduct a focused emergence survey(s) of the tree(s) within 48 hours of scheduled work. If a maternity roost is located, whether solitary or colonial, that roost will remain undisturbed until after the maternity season or until a qualified biological monitor has determined the roost is no longer active.

BIO-2 If sensitive biological resources are identified within or adjacent to the proposed development project area, the construction limits shall be clearly flagged to ensure impacts to sensitive biological resources are avoided or minimized to the extent feasible. Prior to implementing construction activities, a qualified biologist shall verify that the flagging clearly delineates the construction limits and sensitive resources to be avoided.

BIO-3 If sensitive biological resources are known to occur within or adjacent to the proposed development project area, a project-specific contractor training program shall be developed

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5. Environmental Analysis

and implemented to educate project contractors on the sensitive biological resources within and adjacent to the proposed development project area and measures being implemented to avoid and/or minimize impacts to these species. A qualified biologist shall develop and implement the contractor training program.

BIO-4 If sensitive biological resources are present within or adjacent to the proposed development project area and impacts may occur from implementation of construction activities, a qualified biological monitor may be required during a portion or all of the construction activities to ensure impacts to the sensitive biological resources are avoided or minimized to the extent feasible. The specific biological monitoring requirements shall be evaluated on a project-byproject basis. The qualified biological monitor shall be approved by the City on a project-byproject basis based on applicable experience with the sensitive biological resources that may be impacted.

BIO-5 The City of Corona shall require applicants of development project that have the potential to affect jurisdictional resources to contract with a qualified biologist to conduct a jurisdictional delineation following the methods outlined in the 1987 USACE Wetland Delineation Manual and the Regional Supplement to the USACE Wetland Delineation Manual: Arid West Region (USACE 2008) to map the extent of wetlands and nonwetland waters, determine jurisdiction, and assess potential impacts. The results of the delineation shall be presented in a wetland delineation report and shall be incorporated into the CEQA document(s) required for approval and permitting of the proposed development project.

Applicants of development projects that have the potential to impact jurisdictional features, as identified in the wetland delineation letter report, shall obtain permits and authorizations from the Army Corps of Engineers, California Department of Fish and Wildlife, and/or Santa Ana Regional Water Quality Control Board. The regulatory agency authorization(s) would include impact avoidance and minimization measures as well as mitigation measures for unavoidable impacts. Specific avoidance, minimization, and mitigation measures for impacts to jurisdictional resources shall be determined through discussions with the regulatory agencies during the proposed development project permitting process and may include monetary contributions to a mitigation bank or habitat creation, restoration, or enhancement.

BIO-6 The City of Corona shall require a habitat connectivity/wildlife corridor evaluation for future development projects that may impact existing connectivity areas and wildlife linkages identified in Figure 5.4-7, Potential Wildlife Movement Corridors, of the Draft EIR, which includes the Bedford Wash to Lake Mathews Estelle Mountain Reserve Corridor. The results of the evaluation shall be incorporated into the project’s biological report required under Mitigation Measure BIO-1. The evaluation shall also identify project design features that would reduce potential impacts and maintain habitat and wildlife movement. To this end, the City shall incorporate the following measures, to the extent practicable, for projects impacting wildlife movement corridors:

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 Adhere to low density zoning standards.
 Encourage clustering of development.
 Avoid known sensitive biological resources.
 Provide shielded lighting adjacent to sensitive habitat areas.  Encourage development plans that maximize wildlife movement.  Provide buffers between development and wetland/riparian areas.  Protect wetland/riparian areas through regulatory agency permitting process.  Encourage wildlife-passable fence designs (e.g., 3-strand barbless wire fence) on property boundaries.
 Encourage preservation of native habitat on the undeveloped remainder of developed parcels.
 Minimize road/driveway development to help prevent loss of habitat due to roadkill and habitat loss.
 Use native, drought-resistant plant species in landscape design.  Encourage participation in local/regional recreational trail design efforts.

BIO-7 The City of Corona shall require applicants for future development projects to contract with a qualified biologist to conduct a preconstruction general nesting bird survey within all suitable nesting habitats that may be impacted by active construction during general avian breeding season (February 1 through August 31). The preconstruction surveys shall be conducted no more than 7 days prior to initiation of construction. If no active avian nests are identified within the proposed development project area or within a 300-foot buffer of the proposed development project area, no further mitigation is necessary. If active nests of avian species covered by the Fish and Game Code are detected within the proposed development project area or within a 300-foot buffer of the proposed development project area, construction shall be halted until the young have fledged, until a qualified biologist has determined the nest is inactive, or until appropriate mitigation measures that respond to the specific situation have been developed and implemented in consultation with the regulatory agencies. Based on the discretion of the qualified biologist, the 300-foot buffer may be expanded as appropriate to the species.

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5.5 CULTURAL RESOURCES

5.5.1 Summary of Impacts Identified in the Program EIR
The 2020 Certified EIR concluded that with implementation of mitigation measures, impacts to archeological resources would be reduced to less than significant, and impacts to historic resources would remain significant and unavoidable.

Historic Resources
There are 31 previously recorded built environment resources identified within the City of Corona, as well as 7 historic properties defined as listed or eligible for listing on the NHRP. There are no State Historic Landmarks, but there are two State Historical Points of Interest within the City. The five properties listed on the National Register of Historic Places (NRHP) are automatically eligible for listing on the California Register of Historical Resources (CRHR); additionally, eight other properties are eligible for the CRHR. The Corona Register of Historic Resources contains 367 individual built-environment resources. Additionally, there are 57 identified properties that are listed on the Corona Historic Landmarks and 10 identified Historic Markers. Moreover, only one previously recorded built environment resource was identified within the SOI. There are no resources within the SOI listed on the NRHP. The City’s SOI contains 8 State Historic Landmarks.

Development in accordance with the Approved Project could adversely impact any of these historic resources.

Compliance with the proposed General Plan policies and state and federal regulations would ensure that development would not result in adverse impacts on an identified historic and cultural resources. However, identified historic structures and sites that are potentially eligible for future historic resources listing may be vulnerable to development activities accompanying infill, redevelopment, or revitalization that would be accommodated by the General Plan.

Archeological Resources
There are multiple known fossil localities within the City as well as the vicinity. Policies under the Historic Resources Element of the General Plan would reduce impacts of potential development on cultural resources.

Long-term implementation of the General Plan could allow development (e.g. infill development, redevelopment, and revitalization/restoration), including grading, of unknown sensitive areas that could potentially cause the disturbance and unearth previously unknown/unrecorded archaeological resources.

Therefore, future development that would be accommodated by the General Plan could potentially unearth previously unrecorded resources.

Human Remains
California Health and Safety Code, Section 7050.5; CEQA Section 15064.5; and Public Resources Code, Section 5097.98, mandate the process to be followed in the event of an accidental discovery of any human remains in a location other than a dedicated cemetery. Buildout of the Approved Project could result in the discovery of human remains, but compliance with existing law would ensure that significant impacts to human remains would not occur.

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5.5.2 Impacts Associated with the Proposed Project
Would the project:

Environmental Issues
Condition 1:

Substantial
Change in
Project
Requiring
Major
Revisions
Condition 2:

Substantial
Change in
Circumstances
Requiring
Major
Revisions
Condition 3:

New
Information
Showing New
or Increased
Significant
Effects
Less Than
Significant
Impact/No
Changes or
New
Information
Requiring
Preparation of
an EIR/MND No Impact
a) Cause a substantial adverse change in the
significance of a historical resource
pursuant to § 15064.5?
X
b) Cause a substantial adverse change in the
significance of an archaeological resource
pursuant to § 15064.5?
X
c) Disturb any human remains, including those
interred outside of dedicated cemeteries? X
a) Cause a substantial adverse change in the significance of a historical resource pursuant to § 15064.5?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. The Archaeological and Architectural Resources Inventory and Evaluation (AARIE) Report prepared for the proposed project conducted a records search and identified four previously recorded resources: P-33-6444, the Corona Historic District; P-33-17926, City Park; P-33-17929, the Corona Armory; and P-33-6443, the Founder’s Monument, a State Point of Historical Interest (see Appendix D).

The project site is currently developed with Corona City Park, which began development in 1912 and became Corona’s first public park, opening in 1913. Corona City Park is connected to the American municipal park movement, which lasted from about 1904 to 1931. The AARIE Report determined that the park has a period of significance of 1913 to 1930, which includes the park’s opening and the completion of the 1920s-era improvements.

Archival research did not indicate that Corona City Park is associated with events or persons that made a significant contribution to broad patterns of history. Instead, the park represents a typical example of an early 20th-century municipal park and no longer retains the character-defining features from its period of significance. The park was previously listed as a City of Corona local district (City Park Historic District No. 5) and was found locally eligible as a Corona City Landmark in a 2009 report prepared by Michael Brandman Associates. However, the AARIE Report concluded that the park has been substantially altered over time, with the removal of many historic features, including original plantings, the Municipal Plunge, fountains, and wading pools. Remaining historic-era elements are scattered and lack cohesion.

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As concluded in the AARIE Report, the park no longer retains sufficient integrity to convey its historical significance and was recommended ineligible for listing in the NRHP, CRHR, and for local designation as a Corona Landmark or Historic District. Based on the preceding, impacts to historical resources would be less than significant, and the proposed project would not include new or substantially greater significant impacts than those analyzed in the 2020 Certified EIR for the Approved Project. No changes or new information would require preparation of a supplemental or subsequent EIR. b) Cause a substantial adverse change in the significance of an archaeological resource pursuant to § 15064.5?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. Implementation of the proposed project would involve ground-disturbing activities. Earthwork would include grading to establish the proper base and slope for the community center building, aquatic center and pool, and pump track; drilling holes for light pole installation; and utility trenching. These earthwork activities would generally be shallow, with the exception of site preparation for the two pools. The proposed project assumes a maximum disturbance depth of approximately 30 feet below the existing ground surface.

As concluded in the AARIE Report (Appendix D), the project site has a low potential for buried pre-contact archaeological sites and buried prehistoric-era resources associated with buildings and structures. Although the project site is likely to discover buried historic-era landscaping (flowers, shrubs, irrigation, trees, shovels, pots), any buried project site landscaping remnants that may be present would not meet the criteria for historic eligibility. Therefore, the proposed project would not result in impacts to buried landscaping resources.

Nevertheless, the potential still exists that ground-disturbing activities from the proposed project may uncover unknown archaeological resources. In the unlikely event that archaeological resources are discovered during excavation or grading, work would cease in the area of the find and a qualified archaeologist would be contacted.

A qualified archaeologist and tribal monitor will evaluate the find in accordance with federal, State, and local guidelines, including those set forth in the California Public Resources Code Section 21083.2. Construction activity may continue unimpeded on other portions of the project site. The uncovered archaeological resources would be treated in accordance with federal, State, and local guidelines, including California Public Resources Code Section 21083.2, and follow Mitigation Measure CUL-5, provided in Section 5.5.3. With implementation of Mitigation Measure CUL-5, the proposed project would ensure that impacts to archaeological resources are less than significant, and the proposed project would not include new or substantially greater significant impacts than those analyzed in the 2020 Certified EIR. No changes or new information would require preparation of a supplemental or subsequent EIR.
c) Disturb any human remains, including those interred outside of dedicated cemeteries? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. A significant impact would occur if previously interred human remains would be disturbed during the excavation of the project site. Given the project site was previously disturbed, it is unlikely to support conditions conducive to the discovery of human remains. However, there is a remote possibility that human remains could be encountered during excavation and grading activities associated with the proposed project.

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If human remains are encountered during ground-disturbing activities, California Health and Safety Code Section 7050.5 states that there shall be no further excavation or disturbance of the site until the coroner has made a determination pursuant to that section. Additionally, CUL-5 and TCR-2 in Section 5.18.3 outlines applicable standards if human remains or Native American remains are found and that California Public Resources Code Sections 5097.98 shall apply. With implementation of CUL-5 and TCR-2, the proposed project would ensure that impacts to human remains are less than significant and the proposed project would not cause new or substantially greater significant impacts than those analyzed in the 2020 Certified EIR. No changes or new information would require preparation of a supplemental or subsequent EIR.

5.5.3 Adopted Mitigation Measures Applicable to the Proposed Project The following mitigation measures were taken directly from the 2020 Certified EIR and would be incorporated as part of the proposed project. Any modifications to these mitigation measures are shown in strikethrough for deleted text and underline for new, inserted text.

The following mitigation measures were satisfied through preparation of the AARIE Report prepared for the proposed project, which included evaluation of historic resources and was recommended ineligible for listing in the NRHP, CRHR, and for local designation as a Corona Landmark or Historic District (See Appendix D).

CUL-1 Prior to any construction activities that may affect historical resources (i.e., structures 45 years or older), a historical resources assessment shall be performed by an architectural historian or historian who meets the Secretary of the Interior’s Professionally Qualified Standards (PQS) in architectural history or history. This shall include a records search to determine if any resources that may be potentially affected by the project have been previously recorded, evaluated, and/or designated in the National Register of Historic Places (NRHP), California Register of Historic Resources (CRHR), or Corona Register of Historic Resources. Following the records search, the qualified architectural historian or historian shall conduct a reconnaissance-level and/or intensive-level survey in accordance with the California Office of Historic Preservation (OHP) guidelines to identify any previously unrecorded potential historical resources that may be potentially affected by the proposed project. Pursuant to the definition of a historical resource under CEQA, potential historical resources shall be evaluated under a developed historic context.

CUL-2 To ensure that projects requiring the relocation, rehabilitation, or alteration of a historical resource not impair its significance, the Secretary of the Interior’s Standards for the Treatments of Historic Properties shall be used to the maximum extent possible. The application of the standards shall be overseen by a qualified architectural historian or historic architect meeting the PQS. Prior to any construction activities that may affect the historical resource, a report identifying and specifying the treatment of character-defining features and construction activities shall be provided to the City of Corona.

CUL-3 If a proposed project would result in the demolition or significant alteration of a historical resource, it cannot be mitigated to a less than significant level. However, recordation of the

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resource prior to construction activities will assist in reducing adverse impacts to the resource to the greatest extent possible. Recordation shall take the form of Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER), or Historic American Landscape Survey (HALS) documentation, and shall be performed by an architectural historian or historian who meets the PQS. Documentation shall include an architectural and historical narrative; medium- or large-format black and white photographs, negatives, and prints; and supplementary information such as building plans and elevations, and/or historic photographs. Documentation shall be reproduced on archival paper and placed in appropriate local, state, or federal institutions. The specific scope and details of documentation would be developed at the project level.

CUL-4 If cultural resources that are eligible for listing to the NRHP, CRHR, or Corona Register of Historic Resources are identified within or adjacent to the proposed development, the construction limits shall be clearly flagged to assure impacts to eligible cultural resources are avoided or minimized to the extent feasible. Prior to implementing construction activities, a qualified archaeologist shall verify that the flagging clearly delineates the construction limits and eligible resources to be avoided. Since the location of some eligible cultural resources is confidential, these resources will be flagged as environmentally sensitive areas (ESA).

The following mitigation measures were modified through preparation of the AARIE Report prepared for the proposed project, as concluded in the AARIE Report (Appendix D), the project site has a low potential for buried pre-contact archaeological sites and buried prehistoric-era resources associated with buildings and structures.

CUL-5 To determine the archaeological sensitivity for discretionary projects within the City, an archaeological resources assessment shall be performed under the supervision of an archaeologist that meets the Secretary of the Interior’s Professionally Qualified Standards (PQS) in either prehistoric or historic archaeology. The assessments shall include a California Historical Resources Information System (CHRIS) records search and a search of the Sacred Lands File (SLF) maintained by the Native American Heritage Commission (NAHC). The records searches shall determine if the proposed project has been previously surveyed for archaeological resources, identify and characterize the results of previous cultural resource surveys, and disclose any cultural resources that have been recorded and/or evaluated. A Phase I pedestrian survey shall be undertaken in areas that are undeveloped to locate any surface cultural materials. If potentially significant archaeological resources are identified through an archaeological resources assessment, and impacts to these resources cannot be avoided, a Phase II Testing and Evaluation investigation shall be performed by an archaeologist who meets the PQS prior to any construction-related ground-disturbing activities to determine significance. If resources determined significant or unique through Phase II testing, and site avoidance is not possible, appropriate site-specific mitigation measures shall be established and undertaken. These might include a Phase III data recovery program that would be implemented by a qualified archaeologist and shall be performed in accordance with the Office

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of Historic Preservation’s Archaeological Resource Management Reports (ARMR): Recommended Contents and Format (1990) and Guidelines for Archaeological Research Designs (1991). a. If the archaeological assessment did not identify potentially significant archaeological resources within the proposed General Plan area but indicated the area to be highly sensitive for archaeological resources, a qualified archaeologist shall monitor all grounddisturbing construction and pre-construction activities in areas with previously undisturbed soil. The archaeologist shall inform all construction personnel prior to construction activities of the proper procedures in the event of an archaeological discovery. The training shall be held in conjunction with the project’s initial on-site safety meeting, and shall explain the importance and legal basis for the protection of significant archaeological resources. In the event that archaeological resources (artifacts or features) are exposed during ground-disturbing activities, construction activities in the immediate vicinity of the discovery shall be halted while the resources are evaluated for significance by an archaeologist who meets the PQS. If the discovery proves to be significant, it shall be curated with a recognized scientific or educational repository. b. If the archaeological assessment did not identify potentially significant archaeological resources, but indicates the area to be of medium sensitivity for archaeological resources, an archaeologist who meets the PQS shall be retained on an on-call basis. The archaeologist shall inform all construction personnel prior to construction activities about the proper procedures in the event of an archaeological discovery. The training shall be held in conjunction with the project’s initial on-site safety meeting, and shall explain the importance and legal basis for the protection of significant archaeological resources. In the event that archaeological resources (artifacts or features) are exposed during grounddisturbing activities, construction activities in the immediate vicinity of the discovery shall be halted while the on-call archaeologist is contacted. If the discovery proves to be significant, it shall be curated with a recognized scientific or educational repository.

If subsurface deposits believed to be cultural or human in origin are discovered during construction, all work must halt within a 100-foot radius of the discovery. A qualified professional archaeologist, meeting the Secretary of the Interior’s Professional Qualification Standards for prehistoric and historic archaeology, shall be retained to evaluate the significance of the find, and shall have the authority to modify the no-work radius as appropriate, using professional judgment. The following notifications shall apply, depending on the nature of the find:
a. If the professional archaeologist determines that the find does not represent a cultural resource, work may resume immediately, and no City and NEPA lead agency (if applicable) notifications are required.
b. If the professional archaeologist determines that the find does represent a cultural resource from any time period or cultural affiliation, the archaeologist shall immediately

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notify the City and NEPA lead agency (if applicable). The City, in consultation with the qualified archaeologist and other consulting parties as the City deems appropriate, shall consult on a finding of eligibility and implement appropriate treatment measures, if the find is determined to be a Historical Resource under CEQA, as defined by CEQA or a historic property under Section 106 NHPA, if applicable. Work may not resume within the no-work radius until the lead agencies, through consultation as appropriate, determine that the site either: 1) is not a Historical Resource under CEQA or a Historic Property under Section 106; or 2) that the treatment measures have been completed to their satisfaction.
c. If the find includes human remains, or remains that are potentially human, the archaeologist shall notify the Riverside County Coroner (per § 7050.5 of the Health and Safety Code). The provisions of § 7050.5 of the California Health and Safety Code, § 5097.98 of the California PRC will be implemented. If the coroner determines the remains are Native American, the City shall follow the process outlined under Mitigation Measure TCR-2.

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5.6 ENERGY

5.6.1 Summary of Impacts Identified in the Program EIR
The 2020 Certified EIR concluded that the Approved Project resulted in less than significant impacts to energy.

Short-Term and Long-Term Energy Impacts
The 2020 Certified EIR determined that implementation of the Approved Project would not result in potentially significant environmental impact due to wasteful, inefficient, or unnecessary consumption of energy resources. During construction, energy demand from electricity, operation of construction equipment, and transportation would temporarily increase and would cease upon completion of the development projects within the region. While operation of new development projects accommodated under the Approved Project would generate additional electricity and natural gas demand compared to existing conditions, development would be required to comply with the current and future updates to the Building Energy Efficiency Standards and CALGreen. Although population and VMT are projected to grow, fuel efficiency for vehicles would improve due to compliance with Corporate Average Fuel Economy (CAFE) standards by car manufacturers.

Furthermore, the Land Use Element includes policies that focus on situating residential and nonresidential uses near each other, which would minimize overall VMT and promote non-transportation options with potential future development.

Renewable Energy or Energy Efficiency
The land uses accommodated under the General Plan would comply with the current and future iterations of the Building Energy Efficiency Standards and CALGreen. Therefore, the Approved Project would not conflict with or obstruct a state or local plan for renewable energy or energy efficiency.

5.6.2 Impacts Associated with the Proposed Project
Would the project:

Environmental Issues
Condition 1:

Substantial
Change in
Project
Requiring
Major
Revisions
Condition 2:

Substantial
Change in
Circumstances
Requiring
Major
Revisions
Condition 3:

New
Information
Showing New
or Increased
Significant
Effects
Less Than
Significant
Impact/No
Changes or
New
Information
Requiring
Preparation of
an EIR/MND No Impact
a) Result in potentially significant
environmental impact due to wasteful,
inefficient, or unnecessary consumption of
energy resources, during project
construction or operation?
X
b) Conflict with or obstruct a state or local plan
for renewable energy or energy efficiency? X

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a) Result in potentially significant environmental impact due to wasteful, inefficient, or unnecessary consumption of energy resources, during project construction or operation? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. The following discusses the potential energy demands from short-term construction and longterm operational energy consumption associated with the redevelopment of Corona City Park.

Short-Term Construction Impacts
The 2020 Certified EIR determined that implementation of the Approved Project would not result in potentially significant environmental impact due to wasteful, inefficient, or unnecessary consumption of energy resources. As with the development pursuant to the 2020 Certified EIR, construction of the proposed project would temporarily increase energy demand from construction equipment, construction vehicles, and equipment fuel consumption.

Electrical Energy
The majority of construction equipment would be gas or diesel powered. Electricity use during construction would vary during different phases. Later construction phases could use electricity-powered equipment for interior construction and architectural coatings. It is anticipated that the majority of electrical construction equipment would be hand tools (e.g., power drills, table saws) and lighting, which would result in minimal electricity usage during construction activities. Therefore, project-related construction activities would not result in wasteful or unnecessary electricity demands, and impacts would be less than significant. Furthermore, development under the proposed project would not introduce new types of construction processes or activities compared to what was previously considered in the 2020 Certified EIR. Therefore, the proposed project would not result in a significant impact related to electricity use during the construction phase.

Natural Gas Energy
It is not anticipated that construction equipment used for the proposed project would be powered by natural gas, and no natural gas demand is anticipated during construction. Furthermore, development under the proposed project would not introduce new types of construction processes or activities compared to what was previously considered in the 2020 Certified EIR. Therefore, the proposed project would not result in a significant impact related to natural gas usage during the construction phase.

Transportation Energy
Transportation energy use depends on the type and number of trips, vehicle miles traveled, fuel efficiency of vehicles, and travel mode. Transportation energy use during construction would come from the transport and use of construction equipment, delivery vehicles and haul trucks, and construction employee vehicles that would use diesel fuel and/or gasoline. It is anticipated that the majority of off-road construction equipment, such as those used during demolition and grading, would be gas or diesel powered.

The use of energy resources by vehicles and equipment would fluctuate according to the phase of construction.

In addition, all construction equipment would cease operating upon completion of proposed project

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construction. Thus, impacts related to transportation energy use during construction would be temporary and would not require expanded energy supplies or the construction of new infrastructure.

Furthermore, to limit wasteful and unnecessary energy consumption, the construction contractors are anticipated to minimize nonessential idling of construction equipment during construction, in accordance with Section 2449 of the California Code of Regulations, Title 13, Article 4.8, Chapter 9. Construction trips would also not result in unnecessary use of energy since the project site is centrally located and is served by numerous regional freeway systems (e.g., SR-91 and I-15) that provide the most direct routes from various areas of the region.

Development under the proposed project would not introduce new types of construction processes or activities compared to what was previously considered in the 2020 Certified EIR. No unusual project characteristics would necessitate the use of construction equipment that would be less energy efficient than for development pursuant to the 2020 Certified EIR. Therefore, it is expected that construction fuel consumption associated with the proposed project would not be any more inefficient, wasteful, or unnecessary than the energy required for development contemplated in the 2020 Certified EIR.

Long-Term Impacts During Operation
The 2020 Certified EIR identified that the land uses accommodated under the General Plan would comply with the current and future iterations of the Building Energy Efficiency Standards and CALGreen. Therefore, the Approved Project would not conflict with or obstruct a state or local plan for renewable energy or energy efficiency.

Operation of the proposed project would generate new demand for building electricity and natural gas on the project site. Operational use of energy could include on-site equipment and appliances; and indoor, outdoor, and parking lot lighting. Natural gas consumption could result from space and water heating for the park facility buildings; however, the final design for the community building, pool equipment building, and public restrooms have not yet been developed. Therefore, natural gas consumption is conservatively assumed for the proposed project.

Electrical Energy
The proposed increase in electricity consumption from the proposed building is shown in Table 6, OperationRelated Electricity Consumption.

Table 6 Operation-Related Electricity Consumption
Land Use1 Electricity (kWh/year)1
Building Energy Use1 558,834
Parking Lot 89,422
Source: CalEEMod Version 2022.1; Appendix A.

Note: kWh=kilowatt-hour 1 Represents the community building, pool equipment building and public restroom. The electricity use per year is based on the proposed square footage of the proposed park facility buildings.

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While the proposed project would generate additional energy demand at the site, similar to development allowed under the Approved Project, the proposed project would be consistent with the requirements of the Building Energy Efficiency Standards and CALGreen. The 2022 Title 24 standards became effective in January 2023 and would be more stringent than the standards that applied to the Approved Project. These energy efficient features would comply with the goals outlined in Appendix F of the CEQA Guidelines, as the proposed project would promote the use of renewable energy and decrease reliance on fossil fuels to meet the electricity demands of the renovated park.

In addition to the proposed building energy efficiency, Southern California Edison (SCE) is required to comply with the state’s renewable portfolios standard (RPS), which mandates utilities to procure a certain proportion of electricity from eligible renewable and carbon-free sources and increasing the proportion through the coming years with an ultimate procurement requirement of 100 percent by 2045. The RPS requirements would support use of electricity by the proposed project that is generated from renewable or carbon-free sources.

Overall, the proposed project would generally be consistent with the goals outlined in Appendix F of the CEQA Guidelines regarding increasing energy efficiency, decreasing reliance on fossil fuels, and increasing renewable energy sources.

As further discussed in Section 5.19, Utilities and Service Systems, the proposed project’s electricity consumption would represent an insignificant percentage compared to the overall demand in the SCE’s service area. The proposed project would be consistent with the requirements of State energy-related regulations, which would decrease electricity use and increase renewable electricity, and would not result in wasteful or unnecessary electricity demands. Therefore, the proposed project, similar to development pursuant to the 2020 Certified EIR, would not result in a significant impact related to energy for building use.

Natural Gas Energy
The new natural gas consumption associated with the proposed project is shown in Table 7, Operation-Related Natural Gas Consumption. As seen in Table 7, the natural gas demand by the new facilities would total 2,508,299 kilo-British thermal units per year following buildout of the proposed project.

While the proposed project would result in an increase in natural gas demand, the new park facility buildings would be consistent with the requirements of the Building Energy Efficiency Standards and would generally result in a decrease in per capita natural gas consumption. Compliance with these codes would decrease overall reliance on fossil fuels and increase reliance on renewable energy sources for electricity generation. Therefore, operation of the proposed project, similar to development pursuant to the 2020 Certified EIR, would result in no impact with respect to natural gas usage.

Table 7 Operation-Related Natural Gas Consumption
Land Use Natural Gas (kBTU/year)1
Building Energy Use1 2,508,299
Source: CalEEMod Version 2022.1, Appendix A.

Note: kBTU=kilo-British thermal units. 1 Represents the community building, pool equipment building and public restroom. The natural gas use per year is based on the proposed square footage of the proposed park facility buildings.

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Transportation Energy
Buildout of the proposed project would consume transportation energy during operations from the use of motor vehicles associated with delivery vehicles, maintenance vehicles, and visitors to the redeveloped park.

Although programming for new events would increase vehicle trips to the project site, the proposed project would redistribute existing vehicle trips for events that are already occurring in the City, and future events would not have greater capacity than current events. Therefore, the proposed project would not generate an increase in VMT in the City. Moreover, the 19.6-acre project site was evaluated as recreation under the approved land uses in the 2020 Certified EIR.

Furthermore, fuel efficiency of vehicles during the buildout year of 2029 would on average improve compared to vehicle fuel efficiencies experienced under existing conditions, thereby resulting in a lower per capita fuel consumption in 2029 assuming travel distances, travel modes, and trip rates remain the same. The improvement in fuel efficiency would be attributable to the statewide fuel reduction strategies and regulatory compliances (e.g., CAFE standards), resulting in new cars that are more fuel efficient and the attrition of older, less fuelefficient vehicles. The CAFE standards are not directly applicable to land use development projects, but to car manufacturers. Thus, park visitors do not have direct control in determining the fuel efficiency of the vehicles that are manufactured and made available. However, compliance with the CAFE standards by car manufacturers would ensure that vehicles produced in future years have greater fuel efficiency and would generally result in an overall benefit of reducing fuel usage by providing the population of the project site’s region more fuelefficient vehicle options. Since vehicle fuel efficiencies would improve year over year through the buildout year of 2029 and result in a decrease in overall per capita transportation energy consumption, there would be no impact with respect to operation-related fuel usage.

Electricity consumed in California is required to meet the increasing renewable energy mix requirements under the State’s RPS and accelerated by SB 100, so greater and greater proportions of electricity consumed for transportation energy demand envisioned under the proposed project would continue to be sourced from renewable energy sources rather than fossil fuels.

The proposed project, similar to development pursuant to the 2020 Certified EIR, would be consistent with the requirements of these energy-related regulations and would not result in wasteful or unnecessary fuel demands. Therefore, the proposed project would not result in a significant impact related to transportation energy during the operational phase.

Conclusion
The proposed project, as with development pursuant to the 2020 Certified EIR, would not result in potentially significant environmental impacts due to wasteful, inefficient, or unnecessary consumption of energy resources during project construction or operation. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.
b) Conflict with or obstruct a state or local plan for renewable energy or energy efficiency?

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No Impact. The following evaluates consistency of the proposed project with California’s Renewables Portfolio Standard program and the Southern California Association of Governments’ (SCAG) Regional Transportation Plan/Sustainable Communities Strategy (RTP/SCS).

California Renewables Portfolio Standard Program
The State’s electricity grid is transitioning to renewable energy under California’s Renewable Portfolio Standard (RPS) Program. Eligible renewable sources under the RPS include wind, small hydropower, solar, geothermal, biomass, and biogas. The RPS goals have been updated since adoption of SB 1078 in 2002. In general, California has RPS requirements of 33 percent renewable energy by 2020 (SB X1-2), 40 percent by 2024 (SB 350), 50 percent by 2026 (SB 100), 60 percent by 2030 (SB 100), 90 percent by 2035 (SB 1020), and 100 percent carbon free by 2045 (SB 100 and SB 1020).

The statewide RPS goal is not directly applicable to individual development projects, but to utilities and energy providers such as SCE, which is the utility that would provide all of electricity needs for the proposed project.

SCE’s compliance with RPS goals would ensure the State meets its objective of transitioning to renewable energy. Similar to the Approved Project, the proposed project would be subject to Building Energy Efficiency Standards and CALGreen requirements. Because the proposed project would comply with the latest 2022 energy standards, it would offer an improvement over the energy standards of the Approved Project. Therefore, implementation of the proposed project would not result in new or increase in the severity impacts as it pertains to consistency with renewable energy or energy efficiency plans compared to the Approved Project. Thus, preparation of a supplemental or subsequent EIR is not required by CEQA.

SCAG’s Regional Transportation Plan / Sustainable Communities Strategy SCAG adopted the 2024-2050 RTP/SCS, Connect SoCal, in April 2024. Connect SoCal is a long-term plan for Southern California region that details the development, integrated management and operation of transportation systems and facilities that will function as an intermodal transportation network for the SCAG metropolitan planning area (SCAG 2024). This plan outlines a forecast development pattern that demonstrates how the region can sustainably accommodate needed housing and job centers with multimodal mobility options. The overarching vision is to expand alternatives to driving, advance the transition to cleantransportation technologies, promote integrated and safe transit networks, and foster transit-oriented development in compact and mixed-use developments (SCAG 2024).

As described in Section 5.14, Population and Housing, the renovation of the park would be confined within the existing Corona City Park and would continue to serve the existing recreational needs of the City. The proposed project would not induce substantial unplanned growth in the City's population and would not obstruct the implementation of SCAG's 2024-2050 RTP/SCS. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.

5.6.3 Adopted Mitigation Measures Applicable to the Proposed Project No mitigation measures related to energy were outlined in the 2020 Certified EIR.

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5.7 GEOLOGY AND SOILS

5.7.1 Summary of Impacts Identified in the Program EIR
The 2020 Certified EIR concluded that impacts to geology and soils would be less than significant with the implementation of mitigation measures.

Seismic Hazards
Corona’s location and underlying geology make it susceptible to seismic and geologic hazards, including surface (fault) rupture and seismic ground shaking. Mandatory compliance with existing regulations, including the preparation and submittal of seismicity reports with all grading plans, would ensure surface rupture impacts to any new developments within the City would be reduced to a less than significant level. Much of the northern portion of the City is susceptible to liquefaction. Although liquefaction is expected within the City, based on the mandatory compliance with existing regulations, including the preparation and submittal of soil engineering reports, liquefaction impacts to any new developments within the area would be reduced to a less than significant level. The terrain of the City is varied, ranging from relatively flat to hilly. Any grading permit for a hillside development must have an engineering geology report, and existing regulations, including the preparation and submittal of soil engineering, engineering geology, and seismicity reports would be prepared and submitted to the City. Additionally, the California Building Code (CBC) has been accepted as the basic design standard in the City of Corona and Riverside County. The design of structures in accordance with the CBC is expected to minimize the effects of ground shaking, landslides, and ground lurching to the greatest degree feasible, and would reduce impacts to a less than significant level.

Unconsolidated soils and undocumented fill material are present within the City, and seismically induced settlement and/or collapse are potential impacts. Subsidence of basins attributed to overdraft of groundwater aquifers has not occurred in the City. Although a portion of the Prado-Corona oil field is located within the City, the oil field is relatively small in size, and its cessation of production, and the presence and use of groundwater spreading basins within the area, subsidence due to over pumping of groundwater or petroleum reserves is not considered a potentially significant impact for the City, and no mitigation is required.

Soil Erosion
Soils in the City are particularly prone to erosion during the grading phase of development, especially during heavy rains. However, adherence to the Storm Water Pollution Prevention Plan (SWPPP), an erosion control plan (required under Section 15.36.060, Erosion Control Plan, of the City’s Municipal Code), and submittal grading plans and a geotechnical evaluation (Chapter 15.36, Grading Regulations, of the City’s Municipal Code) for new development, would reduce impacts to less than significant.

Expansive Soils
Highly expansive soils swell when they absorb water and shrink as they dry and can cause structural damage to building foundations and roads. The City and SOI are known to have a low to moderate potential for expansive soils. Application of the existing regulations identified in the municipal code, CBC, and grading regulations

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would minimize the risk associated with any development proposed within areas containing expansive soils to less than significant levels.

Septic Tanks or Alternative Wastewater System
Future development within the City would utilize the local sewer system in accordance with General Plan Policy IU-3.8. Therefore, impacts that would result from soil conditions in relation to septic tanks or other on-site wastewater disposal systems would be less than significant.

Paleontological Resources
Paleontological resources are recognized as nonrenewable and therefore receive protection under the California Public Resources Code and CEQA. Long-term implementation of the General Plan could allow development (e.g., new development, infill development, redevelopment, and revitalization/restoration), including grading, of known and unknown sensitive areas. Therefore, future development that would be accommodated by the General Plan could potentially unearth previously unrecorded resources.

Although policies in the General Plan would minimize impacts to paleontological resources, new development/redevelopment and soil excavations would have potentially significant impact to paleontological resources in the City and SOI.

5.7.2 Impacts Associated with the Proposed Project
Would the project:

Environmental Issues
Condition 1:

Substantial
Change in
Project
Requiring
Major
Revisions
Condition 2:

Substantial
Change in
Circumstances
Requiring
Major
Revisions
Condition 3:

New
Information
Showing New
or Increased
Significant
Effects
Less Than
Significant
Impact/No
Changes or
New
Information
Requiring
Preparation of
an EIR/MND No Impact
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
Division of Mines and Geology Special
Publication 42.

X
ii) Strong seismic ground shaking? X
iii) Seismic-related ground failure,
including liquefaction? X
iv) Landslides? X
b) Result in substantial soil erosion or the loss
of topsoil? X

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Environmental Issues
Condition 1:

Substantial
Change in
Project
Requiring
Major
Revisions
Condition 2:

Substantial
Change in
Circumstances
Requiring
Major
Revisions
Condition 3:

New
Information
Showing New
or Increased
Significant
Effects
Less Than
Significant
Impact/No
Changes or
New
Information
Requiring
Preparation of
an EIR/MND No Impact
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?
X
d) Be located on expansive soil, as defined in
Table 18-1-B of the Uniform Building Code
(1994), creating substantial direct or indirect
risks to life or property?
X
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?
X
f) Directly or indirectly destroy a unique
paleontological resource or site or unique
geologic feature?
X
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 Division of Mines and Geology Special Publication 42.

Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. Alquist-Priolo earthquake fault zones are regulatory zones surrounding the surface traces of active faults in California. Wherever an active fault exists, if it has the potential for surface rupture, a structure for human occupancy cannot be placed over the fault and must be a minimum distance from the fault (generally 50 feet). An active fault, for the purposes of the Alquist-Priolo Act, is one that has ruptured in the last 11,000 years (DOC 2024b).

According to the California Geological Survey (CGS) Fault Activity Map of California, the project site is not within an Alquist-Priolo Earthquake Fault Zone. The closest Alquist-Priolo Earthquake zone is approximately the Elsinore Fault zone 3.80 miles west of Corona City Park (DOC 2024c). The proposed project would comply with the 2025 CBC (effective Jan 1, 2026).. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant

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impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR. ii) Strong seismic ground shaking?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. Southern California is a seismically active region. Impacts from ground shaking could occur many miles from an earthquake epicenter. The potential severity of ground shaking depends on many factors, including the distance from the originating fault, the earthquake magnitude, and the nature of the earth materials beneath a given site.

According to the City of Corona General Plan’s Public Safety Element, there are no known active faults that traverse the City; however, the potential for seismic activity exists due to the Whittier-Elsinore Fault and San Jacinto Fault Zone approximately 3.80 miles west, and 20 miles northeast of the project site, respectively (Corona 2020; DOC 2024c). The proposed project would be developed in accordance with the applicable 2025 CBC requirements for seismic safety and City development requirements, as described in General Plan Policies PS-1.3 and PS-1.4. Compliance with established standards would reduce the risk of structural collapse or other shaking-related hazards to a less than significant level. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the Approved Project would occur. No changes or new information would require preparation of a supplemental or subsequent EIR. iii) Seismic-related ground failure, including liquefaction? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. Liquefaction refers to loose, saturated sand, or gravel deposits that lose their load-supporting capability when subjected to intense shaking. Liquefaction potential varies based upon three main contributing factors: 1) cohesionless, granular soils having relatively low densities (usually of Holocene age); 2) shallow groundwater, generally less than 50 feet; and 3) moderate to high seismic ground shaking.

According to the City of Corona General Plan Figure PS-2, Liquefaction Hazards, the project site has a low liquefaction potential (Corona 2020). Additionally, the proposed project would be designed in compliance with the 2025 CBC requirements for liquefaction impacts and City development requirements, as described in General Plan Policies PS-1.3 and PS-1.4. Compliance with established standards would reduce the risk of liquefaction hazards to a less than significant level. Therefore, as with the Approved Project, a less than significant impact would occur. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR. iv) Landslides?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. Landslides are a type of erosion in which masses of earth and rock move downslope as a single unit. Susceptibility of slopes to landslides and lurching (earth movement at right angles to a cliff or

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steep slope during ground shaking) depends on several factors that are usually present in combination— steep slopes, condition of rock and soil materials, presence of water, formational contacts, geologic shear zones, and seismic activity. Corona City Park is generally flat and contains no unusual geographic features or slopes. According to the City of Corona General Plan Figure PS-3, Landslide Hazards, the project area has a low landslide susceptibility (Corona 2020). In the absence of significant ground slopes, the potential for landslides is considered negligible. Additionally, the proposed project would be designed to meet the 2025 CBC requirements. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.
b) Result in substantial soil erosion or the loss of topsoil? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. Erosion is a normal and inevitable geologic process whereby earthen materials are loosened, worn away, decomposed, or dissolved and removed from one place and transported to another. The project site contains flat terrain, which decreases the project’s potential to accelerate erosion. The project site is developed with existing park facilities and associated structures. Earthwork would include grading to establish the proper base and slope for the community center building, aquatic center and pool, and pump track; drilling holes for light pole installation; and utility trenching. These earthwork activities would generally be shallow, with the exception of site preparation for the two pools. The proposed project assumes a maximum disturbance depth of approximately 30 feet below the existing ground surface, which could expose more soils to erosion. In addition, because the project site encompasses an area of more than one acre, the proposed project would be subject to the National Pollutant Discharge Elimination System (NPDES) permit requirements. These include the preparation of a Storm Water Pollution Prevention Plan (SWPPP) and Monitoring Program. The SWPPP for the proposed project would describe minimum and advanced construction best practices for erosion control at the site. Additionally, adherence to state and local laws regulating construction activities would minimize soil erosion. The proposed project would not result in substantial soil erosion or loss of topsoil. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR. 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?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. The project site is essentially flat and, as discussed in Sections 5.7(a)(iii) and (a)(iv), is not located within an area subject to liquefaction or landslides, and the proposed project would be constructed in compliance with the applicable 2025 CBC requirements.

Lateral spreading is a phenomenon where large blocks of intact, non-liquefied soil move downslope on a large, liquefied substratum. The mass moves toward an unconfined area, such as a descending slope or stream-cut

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bluff and has been known to move on slope gradients as little as one degree. The topography of the project site is generally flat. Therefore, impacts from lateral spreading would be less than significant.

Subsidence and collapse are generally due to substantial overdraft of groundwater or underground petroleum reserves. Collapsible soils may appear strong and stable in their natural (dry) state, but they rapidly consolidate under wetting, generating large and often unexpected settlements. Seismically induced settlement consists of dynamic settlement of unsaturated soil (above groundwater) and liquefaction-induced settlement (below groundwater). These settlements occur primarily in low-density sandy soil due to the reduction in volume during and shortly after an earthquake. According to the Area of Land Subsidence in California Mapper, Corona City Park is not within an area of recorded subsidence due to groundwater pumping (USGS 2024). Additionally, the proposed project would be constructed in compliance with the applicable 2025 CBC requirements. Impacts would be less than significant.

Therefore, as with the Approved Project, a less than significant impact would occur under the Proposed Project.

Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.
d) Be located on expansive soil, as defined in Table 18-1-B of the Uniform Building Code (1994), creating substantial direct or indirect risks to life or property? No Impact. Highly expansive soils, which swell when they absorb water and shrink as they dry, can cause structural damage to building foundations. Therefore, they are less suitable for development than nonexpansive soils. According to the Corona General Plan, the City contains the potential for expansive soils (Corona 2020). The proposed project would comply with the Corona Municipal Code, Chapter 15.36, Grading Regulations, which requires that project applicants/proponents submit a soil engineering report to reduce any potential impacts (Corona 2024c). Additionally, the proposed project would be constructed in compliance with the applicable 2025 CBC requirements. Therefore, no impact would occur. Overall, there would be no new significant impacts and no substantial increase in the severity of any previously identified significant impact in the 2020 Certified EIR. No impact would occur, and preparation of a supplemental or subsequent EIR is not required by CEQA.
e) Have soils incapable of adequately supporting the use of septic tanks or alternative waste water disposal systems where sewers are not available for the disposal of waste water? No Impact. The proposed project does not propose the use of septic tanks or alternative wastewater disposal systems. The proposed project is in an urbanized area of the City of Corona, and the proposed project would connect to the City’s wastewater system. No impacts related to septic systems would occur. No new significant impacts and no substantial increase in the severity of any previously identified significant impact in the 2020 Certified EIR. No impact would occur, and preparation of a supplemental or subsequent EIR is not required by CEQA.

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f) Directly or indirectly destroy a unique paleontological resource or site or unique geologic feature? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. No unique geologic features exist on the project site. The proposed project would not directly nor indirectly destroy unique geologic features.

Paleontological resources or fossils are remains of ancient plants and animals that can provide scientifically significant information about the history of life on Earth. This sensitivity is determined by rock type, the history of the geologic unit in producing significant fossils, and fossil localities that are recorded from that unit.

According to the Corona General Plan Figure HR-1, Sensitive Paleontological Resources, the project site has low to high sensitivity, increasing with depth; the City as a whole is within an area of low-to-high sensitivity or high sensitivity.

The project site developed with the existing Corona City Park and associated park facilities and therefore, has undergone substantial disturbance. Development activities under the proposed project would primarily impact the top layer of soil or fill material, with the exception of the two pools, which would require a bit more extensive soil disturbance. Nevertheless, while paleontological resources are not expected to be discovered during project construction, it is possible that unknown paleontological resources could be discovered during grading activities. Implementation of Mitigation Measure GEO-1, GEO-3, and GEO-6 would ensure that impacts to unknown paleontological resources are less than significant. No changes or new information would require preparation of a supplemental or subsequent EIR.

5.7.3 Adopted Mitigation Measures Applicable to the Proposed Project The following mitigation measures were taken directly from the 2020 Certified EIR and would be incorporated as part of the proposed project. Any modifications to these mitigation measures are shown in strikethrough for deleted text and underline for new, inserted text.

GEO-1 High and Low-to-High Sensitivity. In areas designated as having “high” or “low-to-high” sensitivity for paleontological resources, the City shall be required to submit a Paleontological Resources Monitoring and Mitigation Plan (PRMMP). The PRMMP shall be prepared by a Qualified Paleontologist meeting the standards of Society of Vertebrate Paleontology (2010).

The plan shall address specifics of monitoring and mitigation based on the project area and project’s construction plan, and shall take into account updated geologic mapping, geotechnical data, updated paleontological records searches, and changes to the regulatory framework at the time of analysis. The PRMMP shall be submitted to the City of Corona’s Community Development Department prior to approval of a grading permit.

GEO-2 High Sensitivity. Projects involving ground disturbances in previously undisturbed areas mapped as having “high” paleontological sensitivity shall be monitored by a qualified paleontological monitor on a full-time basis, under the supervision of the Qualified Paleontologist. Monitoring shall include inspection of exposed sedimentary units during active excavations within sensitive geologic sediments. The monitor shall have authority to

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temporarily divert activity away from exposed fossils to evaluate the significance of the find and, if the fossils are determined to be significant, professionally and efficiently recover the fossil specimens and collect associated data. The paleontological monitor shall use field data forms to record pertinent location and geologic data, measure stratigraphic sections (if applicable), and collect appropriate sediment samples from any fossil localities.

GEO-3 Low-to-High Sensitivity. Projects involving ground disturbance in previously undisturbed areas mapped with “low-to-high” paleontological sensitivity shall require monitoring if construction activity exceeds the depth of the low-sensitivity surficial sediments. The underlying sediments may have high sensitivity; therefore, work in those units shall require paleontological monitoring, as designated by the Qualified Paleontologist in the Paleontological Resources Monitoring and Mitigation Plan (PRMMP).

GEO-4 Low Sensitivity. Projects involving ground disturbance in previously undisturbed areas mapped as having “low” paleontological sensitivity shall incorporate worker training to make construction workers aware that, although paleontological sensitivity is low, fossils might still be encountered. The Qualified Paleontologist shall oversee this training as well as remain on call in the event fossils are found.

GEO-5 Unknown Sensitivity. Projects involving ground disturbance in previously undisturbed areas mapped as having “unknown” paleontological sensitivity shall retain a Qualified Paleontologist to conduct a field survey of the project area to determine the sensitivity of the geologic units, after which the relevant mitigation measures (GEO-1 through GEO-4) shall be applied.

GEO-6 All Projects. In the event of any fossil discovery, regardless of depth or geologic formation, construction work shall halt within a 50-foot radius of the find until its significance can be determined by a Qualified Paleontologist. Significant fossils shall be recovered, prepared to the point of curation, identified by qualified experts, listed in a database to facilitate analysis, and deposited in a designated paleontological curation facility in accordance with the standards of the Society of Vertebrate Paleontology (2010). The most likely repository is the Natural History Museum of Los Angeles County (NHMLA). The repository shall be identified, and a curatorial arrangement shall be signed, prior to collection of the fossils.

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5.8 GREENHOUSE GAS EMISSIONS

5.8.1 Summary of Impacts Identified in the Program EIR
The 2020 Certified EIR concluded that, even after the implementation of mitigation measures, the Approved Project resulted in significant impacts to greenhouse gas emissions.

GHG Emissions Impact
Implementation of the Approved Project would result in a decrease in greenhouse gas (GHG) emissions in horizon year 2040 from existing baseline and is projected to meet the 2030 GHG reduction target established under SB 32, but may not meet the long-term 2050 GHG reduction goal under Executive Order (EO) S-03-

05. Mitigation Measure GHG-1 would ensure that the City is tracking and monitoring the City’s GHG emissions in order to chart a trajectory to achieve the long-term year 2050 GHG reduction goal set by EO S-03-05.

However, at the time of the analysis, the proposed CAP did not include a 2050 GHG reduction goal nor any reduction strategies to meet this long-term GHG reduction goal. Therefore, until such time, GHG emissions impacts for the 2020 Certified EIR were determined to be significant and unavoidable in regard to meeting the long-term year 2050 reduction goal.

Consistency with Plan, Policy, or Regulation Reducing GHG Emissions Development projects accommodated under the General Plan are required to adhere to the programs and regulations identified by the Scoping Plan and implemented by state, regional, and local agencies to achieve the statewide GHG reduction goals of AB 32. The General Plan would be consistent with 2016-2040 RTP/SCS goals and improve the jobs-housing balance in the City, which would contribute in minimizing VMT. Thus, the 2020 Certified EIR determined that the Approved Project would not conflict with CARB's 2017 Scoping Plan and SCAG's 2016-2040 RTP/SCS.

5.8.2 Impacts Associated with the Proposed Project
Would the project:

Environmental Issues
Condition 1:

Substantial
Change in
Project
Requiring
Major
Revisions
Condition 2:

Substantial
Change in
Circumstances
Requiring
Major
Revisions
Condition 3:

New
Information
Showing New
or Increased
Significant
Effects
Less Than
Significant
Impact/No
Changes or
New
Information
Requiring
Preparation of
an EIR/MND No Impact
a) Generate greenhouse gas emissions, either
directly or indirectly, that may have a
significant impact on the environment?
x
b) Conflict with an applicable plan, policy or
regulation adopted for the purpose of
reducing the emissions of greenhouse
gases?
x

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a) Generate greenhouse gas emissions, either directly or indirectly, that may have a significant impact on the environment?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. Implementation of the Approved Project would result in a decrease in greenhouse gas (GHG) emissions in horizon year 2040 from existing baseline and is projected to meet the 2030 GHG reduction target established under SB 32. However, at the time of the analysis, the Approved Project would not meet the longterm 2050 GHG reduction goal under Executive Order (EO) S-03-05 and would result in a significant and unavoidable GHG emissions impact on the environment.

Global climate change is not confined to a particular project area and is generally accepted as the consequence of global industrialization over the last 200 years. A typical project, even a very large one, does not generate enough greenhouse gas emissions on its own to influence global climate change significantly; hence, the issue of global climate change is by definition a cumulative environmental impact.

Proposed project-related construction and operation-phase GHG emissions are shown in Table 8, Project-Related Operation GHG Emissions. As with the development allowed under the Approved Project, operation of the proposed project would result in an increase in water demand, wastewater and solid waste generation, area sources (e.g., consumer cleaning products), and energy and refrigerant usage. Annual average construction emissions from construction activities were amortized over 30 years and included in the emissions inventory to account for one-time GHG emissions from the construction phase of the proposed project. Overall, development and operation of the proposed project would not generate net annual emissions that exceed the South Coast AQMD Working Group bright-line threshold of 3,000 metric tons of carbon dioxide equivalence (MTCO2e) per year for development projects (South Coast AQMD 2010).

Table 8 Project-Related Operation GHG Emissions
Source GHG (MTCO2e/Year)1 Percentage
Area 1 <1%
Energy 236 52%
Water 20 5%
Solid Waste 134 30%
Refrigerants 0 <1%
Amortized Construction Emissions2 61 13%
Total 453 100%
South Coast AQMD Bright-Line Threshold 3,000 MTCO2e/Yr NA Exceeds Bright-Line Threshold? No
Source: CalEEMod, Version 2022.1.

Notes: MTCO2e: metric ton of carbon dioxide equivalent 1 Mobile trips not modeled since proposed project would redistribute existing vehicle trips in the City and not increase VMT. 2 Total construction emission are amortized over 30 years per South Coast AQMD Working Group methodology.

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Although programming for new events would increase vehicle trips to the project site, the proposed project would redistribute existing vehicle trips for events that already take place in the City, and future events would not have greater capacity than current events. Therefore, the proposed project would not generate an increase in VMT in the City. Moreover, the 19.6-acre project site was previously evaluated for recreational use under the approved land use assumptions in the 2020 Certified EIR, and the proposed project would remain consistent with that previously analyzed use.

Operational GHG emissions from building energy use would be minimized because the existing park facility buildings would be replaced with newer, more energy-efficient buildings that meet the current California Building and Energy Efficiency Standards and Green Building Standards Code (CALGreen). Therefore, implementation of the proposed project would not result in a substantial increase in GHG emissions compared to what was previously considered in the 2020 Certified EIR.

Due to these reasons, the proposed project compared to the Approved Project would not result in any new impacts or increase the severity of impacts with respect to generating GHG emissions, either directly or indirectly, that may have a significant impact on the environment. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR. b) Conflict with an applicable plan, policy or regulation adopted for the purpose of reducing the emissions of greenhouse gases?
No Impact. The 2020 Certified EIR determined that the Approved Project would not conflict with CARB's 2017 Scoping Plan or SCAG's 2016-2040 RTP/SCS. The following evaluates consistency of the proposed project to CARB's 2022 Scoping Plan and SCAG's 2024-2050 RTP/SCS.

CARB Scoping Plan
The 2020 Certified EIR did not identify any conflicts with the Approved Project to CARB's 2017 Scoping Plan.

Since preparation of the 2020 Certified EIR, the 2022 Scoping Plan Update was adopted by CARB to achieve the state’s carbon neutrality goals under AB 1279 (CARB 2022). The CARB Scoping Plan is applicable to state agencies and is not directly applicable to cities/counties or individual projects (i.e., the Scoping Plan does not require a City to adopt policies, programs, or regulations to reduce GHG emissions). However, new regulations adopted by the state agencies outlined in the Scoping Plan result in GHG emissions reductions at the local level. As a result, local jurisdictions benefit from reductions in transportation emissions rates, increases in water efficiency in the building and landscape codes, and other statewide actions that affect a local jurisdiction’s emissions inventory from the top down. Statewide strategies to reduce GHG emissions include the Low Carbon Fuel Standard (LCFS) and changes in the corporate average fuel economy standards (e.g., Pavley I and Pavley California Advanced Clean Cars program).

The proposed project’s GHG emissions would be reduced through compliance with the programs and regulations identified by the Scoping Plan and implemented by state, regional, and local agencies to achieve the statewide GHG reduction goals of Assembly Bill (AB) 32, Senate Bill (SB) 32, and AB 1279. Thus, the proposed

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project would not conflict with the above statewide strategies identified to implement the CARB 2022 Scoping Plan. Therefore, there are no changes or new significant information which would require preparation of an EIR.

SCAG’s Regional Transportation Plan/Sustainable Communities Strategy The 2020 Certified EIR did not identify any conflicts with the 2016-2040 SCAG RTP/SCS. Since preparation of the 2020 Certified EIR, SCAG adopted the 2024-2050 RTP/SCS, Connect SoCal, in April 2024. Connect SoCal is a long-term plan for Southern California region that details the development, integrated management and operation of transportation systems and facilities that will function as an intermodal transportation network for the SCAG metropolitan planning area (SCAG 2024). This plan outlines a forecast development pattern that demonstrates how the region can sustainably accommodate needed housing and job centers with multimodal mobility options. The overarching vision is to expand alternatives to driving, advance the transition to cleantransportation technologies, promote integrated and safe transit networks, and foster transit-oriented development in compact and mixed-use developments (SCAG 2024).

In addition, Connect SoCal is supported by a combination of transportation and land use strategies that outline how the region can achieve California’s GHG-emission-reduction goals and federal Clean Air Act requirements.

The projected regional development, when integrated with the proposed regional transportation network in Connect SoCal, would reduce per-capita GHG emissions related to vehicular travel and achieve the GHG reduction per capita targets for the SCAG region.

The RTP/SCS does not require that local general plans, specific plans, or zoning be consistent with the SCS, but provides incentives for consistency for governments and developers. The proposed project would not generate an increase in VMT. Additionally, Corona City Park would continue to be a local-serving land use and would include circulation improvements for pedestrians and vehicles. Therefore, the proposed project would not interfere with SCAG’s ability to implement the 2024-2050 RTP/SCS strategies.

The proposed project would not include new or substantially greater significant impacts than those analyzed in the 2020 Certified EIR, and the proposed project does not identify or require adoption of any further mitigation measures beyond those provided in the 2020 Certified EIR. With regard to CEQA Section 21166 and CEQA Guidelines Section 15162(a), the proposed project compared to the Approved Project would not result in any new impacts or increase the severity of impacts with respect to generating GHG emissions, either directly or indirectly, that may have a significant impact on the environment. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.

5.8.3 Adopted Mitigation Measures Applicable to the Proposed Project The following mitigation measures were taken directly from the 2020 Certified EIR and would be incorporated as part of the proposed project. Any modifications to these mitigation measures are shown in strikethrough for deleted text and underline for new, inserted text.

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The following mitigation measure is applicable for the City to achieve the GHG reduction targets of Senate Bill 32 and chart a trajectory to achieve the long-term GHG reduction goal set by AB 1279 and not applicable to the proposed project.

GHG-1 The City of Corona shall update the Climate Action Plan (CAP) every five years to ensure the City is monitoring the plan’s progress toward achieving the City’s greenhouse gas (GHG) reduction target and to require amendment if the plan is not achieving specified level. The update shall consider a trajectory consistent with the GHG emissions reduction goal established under Executive Order S-03-05 for year 2050 and the latest applicable statewide legislative GHG emission reduction that may be in effect at the time of the CAP update (e.g., Senate Bill 32 for year 2030). The CAP update shall include the following:
 GHG inventories of existing and forecast year GHG levels.  Tools and strategies for reducing GHG emissions to ensure a trajectory with the longterm GHG reduction goal of Executive Order S-03-05.  Plan implementation guidance that includes, at minimum, the following components consistent with the proposed CAP:
 Administration and Staffing
 Finance and Budgeting
 Timelines for Measure Implementation
 Community Outreach and Education
 Monitoring, Reporting, and Adaptive Management
 Tracking Tools

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5.9 HAZARDS AND HAZARDOUS MATERIALS

5.9.1 Summary of Impacts Identified in the Program EIR
The 2020 Certified EIR concluded that the Approved Project resulted in less than significant impacts to hazards and hazardous materials.

Transportation, Use, and/or Disposal of Hazardous Materials Construction in accordance with the General Plan would involve demolition, grading, and construction of new buildings. Potentially hazardous materials used during construction include substances such as paints, sealants, solvents, adhesives, cleaners, and diesel fuel. There is potential for these materials to spill or to create hazardous conditions. However, the materials used would not be in such quantities or stored in such a manner as to pose a significant safety hazard. These activities would also be short term or one time in nature. Project construction workers would be trained in safe handling and hazardous materials use. To prevent hazardous conditions compliance with existing local, state, and federal laws would minimize the risk of use transportation, use, and disposal of hazardous waste.

Operation of Approved Project would involve the use of small quantities of hazardous materials for cleaning and maintenance purposes, such as paints, household cleaners, fertilizers, pesticides, and commercial uses would use commercial-grade chemicals, cleaners, and solvents. The use, storage, transport, and disposal of hazardous materials by future residents and commercial and industrial tenants/owners would be required to comply with existing regulations of several agencies, including the California Department of Toxic Substances Control, US Environmental Protection Agency, California Division of Occupational Safety and Health, California Department of Transportation, and Riverside County Fire Department. Further, the Corona Fire Department (CFD) administers the Hazardous Materials Release Response Plan and Inventory Program, Hazardous Materials Management Plans and Inventory, permits for handling underground storage, and storage of hazardous materials pursuant to the Corona Fire Code. Compliance with applicable laws and regulations governing the use, storage, transport, and disposal of hazardous materials would ensure that all potentially hazardous materials are used and handled in an appropriate manner and would minimize the potential for safety impacts.

Hazardous Materials Site
There are numerous hazardous materials sites in the City and SOI. Development of projects in accordance with the General Plan would disturb soil in which soil, soil vapor, and/or groundwater may be contaminated with hazardous materials exceeding environmental screening levels for the General Plan land uses. Any development, redevelopment, or reuse on or next to hazardous materials sites would require an environmental site assessment by a qualified professional to ensure that the relevant projects would not disturb hazardous materials sites. However, properties contaminated by hazardous substances are regulated at the local, state, and federal levels and are subject to compliance with stringent laws and regulations for investigations and remediation. Therefore, buildout of the General Plan would result in a less than significant impact upon compliance with existing laws and regulations.

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Airport Influence Area
Airport safety hazards include hazards posed to aircraft and hazards posed by aircraft to people and property on the ground. With proper land-use planning, aircraft safety risks can be reduced, primarily by avoiding incompatible land uses. Buildout of the General Plan could involve development within the Corona Municipal Airport influence area. The General Plan was found to be consistent with the Airport Land Use Commission (ALUC) safety zone; thus, impacts to potential hazards within each zone as a result of project implementation would be less than significant.

Aircraft noise in the City is typically characterized as occasional, and the majority of flights served by the Corona Municipal Airport are for recreational purposes. The airport is not a substantial source of noise because the 65 dBA noise contour does not extend past the airport boundary, and noise does not substantially affect sensitive receptors in the City. Local policies would restrict the development of land uses within the 65 dBA CNEL contour of the Corona Municipal Airport to industrial, agricultural, or other open space activities and require that all development in the vicinity of the airport to comply with the noise standards in the Airport Master Plan. Compliance with the standards in the Airport Master Plan and General Plan policies would reduce impacts to less than significant.

Emergency Response Plan or Emergency Evacuation Plan
The City has established evacuation plans and protocols to ensure the safe and orderly notification and evacuation of people in Corona should the need arise. The City of Corona has prepared an emergency operations plan to ensure the most effective allocation of resources for the maximum benefit and protection of the civilian population in times of emergency. The Corona Disaster Council, in accordance with Section

2.52.050 of the Corona Municipal Code, is responsible for ensuring that the plan remains current and effective.

The CFD Emergency Services Division is responsible for reviewing the entire emergency plan on an annual basis, coordinating revisions to the plan, and maintaining records of all revisions. Additionally, as part of the 2019 Building Code adoption process, Corona Fire has amended the Fire Code to require two points of access for all new developments and areas proposing increased residential densities. Buildout would not interfere with the operation of the City’s Emergency Operations Center and would not interfere with the operations of emergency response agencies or with coordination and cooperation between such agencies. Adherence to local and State policies would reduce impacts to less than significant.

Wildland Fires
Portions of the City are designated Very High Fire Hazard Severity Zones; these areas are predominantly undeveloped, open space, natural open space, agricultural, and single-family residential. Because implementation of the General Plan would not exceed levels of land use density, intensity, or land use designations beyond the 2004 General Plan, these very high fire hazard areas would propose similar uses under the General Plan Update.

To help protect the City and its residents from fire hazards, the CFD, Fire Prevention Division provides a wide range of services, and as part of the 2019 Building Code adoption process, CFD has amended the Fire Code to require two points of access for all new development and for areas proposing increased residential densities.

The General Plan Land Use and Public Safety elements include goals and policies to minimize potential wildfire

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5. Environmental Analysis

impacts in Corona. Compliance with State, County, and local requirements, including the adherence to the CBC and review by the CFD to reduce fire hazards, impacts of fire hazards would be less than significant.

5.9.2 Impacts Associated with the Proposed Project
Would the project:

Environmental Issues
Condition 1:

Substantial
Change in
Project
Requiring
Major
Revisions
Condition 2:

Substantial
Change in
Circumstances
Requiring
Major
Revisions
Condition 3:

New
Information
Showing New
or Increased
Significant
Effects
Less Than
Significant
Impact/No
Changes or
New
Information
Requiring
Preparation of
an EIR/MND No Impact
a) Create a significant hazard to the public or
the environment through the routine
transport, use, or disposal of hazardous
materials?
X
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?
X
c) Emit hazardous emissions or handle
hazardous or acutely hazardous materials,
substances, or waste within one-quarter
mile of an existing or proposed school?
X
d) Be located on a site which is included on a
list of hazardous materials sites compiled
pursuant to Government Code § 65962.5
and, as a result, would it create a significant
hazard to the public or the environment?
X
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?
X
f) Impair implementation of or physically
interfere with an adopted emergency
response plan or emergency evacuation
plan?
X
g) Expose people or structures, either directly
or indirectly, to a significant risk of loss,
injury or death involving wildland fires?
X

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5. Environmental Analysis
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a) Create a significant hazard to the public or the environment through the routine transport, use, or disposal of hazardous materials?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. Construction of the proposed project would require small amounts of hazardous materials during construction, such as vehicle fuels, lubricants, grease and transmission fluids, and paints and coatings. The handling, use, transport, and disposal of hazardous materials during the construction phase of the proposed project would comply with existing regulations of several agencies—the Environmental Protection Agency (EPA), California Division of Occupational Safety and Health, US Occupational Safety and Health Administration (OSHA), and US Department of Transportation (USDOT).

Operation of the proposed project would transport, use, store, and dispose of small amounts of hazardous materials typical of park facilities such as cleaning and maintenance supplies (cleaners, gasoline, paint, and pesticides). The proposed project includes the construction of a community center and park facilities that would use cleaners and other chemicals in relatively small quantities, which are not typically considered hazardous materials that could result in a significant hazard to the public or the environment. No manufacturing, industrial, or other uses utilizing large amounts of hazardous materials would occur within Corona City Park. Compliance with applicable federal and state laws and regulations governing the use, storage, transport, and disposal of hazardous materials would ensure that all potentially hazardous materials are used and handled in an appropriate manner and would minimize the potential for safety impacts to occur; and in accordance with General Plan policy PS-3.1. Therefore, the proposed project would not create substantial hazards to the public or the environment. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR. 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? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. As discussed in Section 5.9(a), construction activities would require small amounts of hazardous materials, which may include vehicle fuels, lubricants, grease and transmission fluids, as well as paints and coatings. The use, transportation, and disposal of hazardous materials would be in accordance with regulatory standards and manufacturers’ specifications. Hazardous materials would be used in small quantities and properly stored so they do not pose health and safety hazards. Operation of the proposed project would transport, use, store, and dispose of small amounts of hazardous materials typical of park facilities which includes cleaning and maintenance supplies (such as cleaners, gasoline, paint, and pesticides). Compliance with applicable federal and state laws and regulations governing the use, storage, transport, and disposal of hazardous materials would reduce impacts. Therefore, the proposed project would not create a significant hazard to the public or environment, and impacts would be less than significant. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.

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5. Environmental Analysis

c) Emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within one-quarter mile of an existing or proposed school? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. The project site is located at 930 East 6th Street, and the closest school campus to the site is Lincoln Fundamental Elementary School approximately 0.30 miles south. As discussed in Section 5.9.2(a), the construction and operation of the proposed project would include the handling of small amounts of hazardous materials typical of construction activities and park athletic activities (during operation). The use, transportation, and storage of hazardous materials would be required to comply with all applicable state and federal regulations that would ensure the proper handling of such materials. As discussed in Section 5.9.2(b), there is no evidence that a hazardous materials release or threatened release has occurred on the project site or within a 1,500-foot radius of the project site. The proposed project would not emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste. Thus, impacts would be less than significant. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.
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?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. The project site is currently developed with the Corona City Park and associated facilities. Five environmental lists were searched for hazardous materials that may exist on the project site:
 EnviroStor. Hazardous Waste and Substances Site List. Department of Toxic Substances Control. (DTSC 2025a)
 GeoTracker. Leaking Underground Storage Task Sites. State Water Resources Control Board. (SWRCB 2025)
 CalEPA. Solid Waste Disposal Sites Identified by the Water Board with Waste Constituents above Hazardous Waste Levels Outside the Waste Management Unit.(CalEPA 2025a)  CalEPA. List of Active Cease and Desist Orders and Cleanup and Abatement Orders from the Water Board. (CalEPA 2025b)
 Hazardous Waste Facilities Subject to Corrective Action. Department of Toxic Substance Control. (DTSC 2025b)
Based on the records search, the project site is not listed on any of the five databases listed above, and no offsite improvements are proposed. Therefore, the proposed project would not create a hazard to the public because of a hazardous materials site compiled pursuant to Government Code Section 65962.5. Additionally, the project site would continue to operate as a park, and the proposed project would not include any components that would introduce new hazardous materials to the project site. Impact would be less than

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5. Environmental Analysis
June 2026 Page 101
significant. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.
e) For a project located within an airport land use plan or, where such a plan has not been adopted, within two miles or 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? No Impact. The closest airports to the project site are the Corona Municipal Airport (2.85 miles northwest of the project site) and the Riverside Municipal Airport (8.10 miles northeast of the project site). According to the City of Corona GIS mapper, the project site is not within the Corona Municipal Airport influence area (Corona 2024a). The project site is not within two miles of a public airport or public use airport. Therefore, as with the Approved Project, a less than significant impact would occur under the proposed project. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR. f) Impair implementation of or physically interfere with an adopted emergency response plan or emergency evacuation plan?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. Construction of the proposed project could temporarily affect local traffic circulation and roadway capacity due to lane closures, narrowing, or detours required for roadway and/or utility improvements.

These temporary disruptions could potentially affect emergency access or response times in the immediate vicinity. However, impacts would be minimized through implementation of standard construction traffic control measures, such as coordination with CFD and the Corona Police Department, posting of detour signage, and limiting lane closures to off-peak hours. The construction staging area would be adjacent to the project site would avoid obstructing emergency access routes. With these measures in place, construction activities would not substantially impair emergency response or evacuation routes With implementation of the proposed project, the project site would continue to operate as a public park. The park does not contain or border any designated emergency evacuation routes, and ongoing park operations would not increase traffic or change conditions in a way that could interfere with emergency response.

Therefore, operation of the proposed project would not conflict with adopted emergency response plans or emergency evacuation plans. The proposed project would also be required to comply with CFD requirements pertaining to access/egress to ensure adequate emergency access. Therefore, the proposed project would not impair an adopted emergency response plan or evacuation plan, and a less than significant impact would occur.

Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.

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5. Environmental Analysis

g) Expose people or structures, either directly or indirectly, to a significant risk of loss, injury or death involving wildland fires?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. As discussed in Section 5.20, Wildfire, the project site is located in a local responsibility area. The project site is not located in a state responsibility area (SRA) or lands classified as a designated Very High Fire Hazard Severity Zone (CAL FIRE 2023). The proposed project would provide park improvements to the project site to support the existing residences and communities’ recreational needs. The proposed project would not construct new housing or induce population growth in the City. Structures on-site and emergency access would be designed and constructed in accordance with the CBC and Fire Code. As further discussed in Section

5.15, Public Services, the proposed project would be adequately served by the CFD. Therefore, the proposed project would not expose people or structures to significant risk of loss, injury, or death involving wildland fires, and less than significant impact would occur. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.

5.9.3 Adopted Mitigation Measures Applicable to the Proposed Project No mitigation measures related to hazards and hazardous materials were outlined in the 2020 Certified EIR.

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5.10 HYDROLOGY AND WATER QUALITY

5.10.1 Summary of Impacts Identified in the Program EIR The 2020 Certified EIR concluded that the Approved Project resulted in less than significant impacts to hydrology and water quality.

Water Quality Standards and Waste Discharge Requirements Urban runoff resulting from storms or nuisance flows (runoff during dry periods) from development projects can carry pollutants to receiving waters. Runoff can contain pollutants such as oil, fertilizers, pesticides, trash, soil, and animal waste. Untreated stormwater runoff degrades water quality in surface waters and groundwater and can affect drinking water, human health, and plant and animal habitats.

Clearing, grading, excavation, and construction activities associated with buildout of the General Plan may impact water quality due to sheet erosion of exposed soils and subsequent deposition of particulates in local drainages. Grading activities lead to exposed areas of loose soil and sediment stockpiles that are susceptible to uncontrolled sheet flow. Both State and local regulations effectively mitigate construction stormwater runoff impacts from the buildout associated with the General Plan. The City of Corona's grading ordinance contains expanded requirements for grading, site erosion control, and NPDES requirements. In addition to existing regulations that control and minimize pollutants from construction activities, the General Plan includes several policies that ensure that new development minimizes potential water quality impacts.

Developments pursuant to the General Plan could potentially create new sources for runoff contamination through changing land uses. Consequently, implementation of the General Plan may have the potential to increase the post-construction pollutant loadings of certain constituent pollutants associated with the proposed land uses and their associated features. To help prevent long-term impacts associated with land use changes and in accordance with the requirements of the City of Corona’s Municipal Code Chapter 13.72, Local Implementation Plan (LIP), and the Riverside County MS4 permit, new development, and significant redevelopment projects must incorporate low impact development (LID)/site design and source control best management practices (BMPs) to address post-construction storm water runoff management. Furthermore, projects must develop a project-specific Water Quality Management Plan (WQMP) with BMPs, and adhere to the requirements of the amended trash total maximum daily load (TMDL).

With the implementation of federal, State, and local regulations runoff from both the operational and construction phases of development pursuant to the General Plan would not violate any water quality standards or waste discharge requirements, and impacts would be less than significant.

Ground Water Supplies
The Corona General Plan area relies on local groundwater resources for approximately 40 percent of its water supply. Therefore, increases in population could generate a higher demand for groundwater resources. The 2 Chapter 13.7 of the City’s Zoning Code, as referenced in the 2020 Certified EIR, have since been updated to Chapter 13.27 in the current Zoning Code as noted in the analysis provided below.

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5. Environmental Analysis

2015 UWMP highlighted sufficient surface and underground water supplied through 2040 concluding no risk of a net deficit in aquifer volume or lowering of the groundwater table. The City prepared a groundwater management plan in 2008 to assist with sustainably operating the Temescal Basin, Bedford Basin, and Coldwater Basin and increasing the reliability of the water supply. Furthermore, the DWR released its final list of critically overdrafted basins in January 2016. The list did not include the Temescal Basin, the Coldwater Basin, or the Bedford Basin. The Temescal Basin and Coldwater Basin are managed to prevent critical overdraft. The City has implemented the Recharge Master Plan for the Temescal Basin, and projects are underway to increase the volume of tertiary-treated reclaimed water available for recharge and to increase the number and capacity of recharge basins. According to the Recharge Master Plan, the Temescal Basin is currently in overdraft; however, the rate of overdraft is decreasing as a result of plan implementation. With the implementation of federal, State, and local regulations (policies of the General Plan), buildout of the General Plan would not decrease groundwater supplies or interfere substantially with groundwater recharge, and impacts would be less than significant.

Erosion and Runoff
Development within the General Plan area and the change in land uses would result in an increase in impervious surfaces. This could result in an increase in stormwater runoff, higher peak discharges to drainage channels, and the potential to cause erosion or sedimentation in drainage swales and streams. Drainage patterns will largely be maintained and will utilize the existing drainage facilities within the public right-of-way in the City and SOI and is eventually discharged into the Santa Ana River. The 2003 update of the City of Corona Drainage Master Plan identified a number of deficient segments throughout the City’s service area that were marked for improvement. However, the City is monitoring the drain system for future improvements and will be updating its Drainage Master Plan to adequately plan for future drainage needs, especially within the remaining undeveloped areas. The overall drainage patterns, flow rates, and flow volumes will be maintained based on the high level of impervious surfaces under existing conditions and will not increase the opportunity for erosion or scour downstream. Hydromodification requirements and standard flood control requirements for new development will minimize impacts of increased flows and volumes on downstream receiving waters.

Implementation of the proposed land use changes within undeveloped areas will likely result in increased runoff, but discharges will be required be consistent with the parameters defined by the most current Master Plan of Drainage or site-specific watershed study. Standard erosion control measures would be implemented as part of the SWPPP for any proposed project to minimize the risk of erosion or sedimentation during construction. The SWPPP must include an erosion control plan that prescribes measures such as phasing grading, limiting areas of disturbance, designating restricted-entry zones, diverting runoff from disturbed areas, protective measures for sensitive areas, outlet protection, and provisions for revegetation or mulching. With the implementation of federal, State, and local regulations, and the policies of the General Plan, would ensure erosion, siltation, or polluted runoff impacts would be less than significant.

Flood Flows
The City is within the dam inundation zones of the Prado, Mabey Canyon, Harrison Street, Lee Lake, Lake Mathews, and Mockingbird Canyon dams. The probability of dam failure is extremely low, and the City of Corona has never been impacted by a major dam failure. Dams in California are continually monitored and inspected by various governmental agencies, including the California Division of Safety of Dams. Dam owners

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are required to maintain Emergency Action Plans (EAPs) that include procedures for damage assessment and emergency warnings, and the County addresses the possibility of dam failure in the Safety Element of its General Plan.

Additionally, areas of the City are within a 100-year flood zone. All new developments would be required to meet federal floodplain regulations, including that the lowest floor of the structure is raised above the 100-year base flood elevation. Furthermore, the City’s Municipal Code Title 18, Floodplain Management, minimizes public and private losses due to flood conditions in specific areas by restricting or prohibiting uses that result in damaging increases in flood heights or velocities. With the implementation of these policies, in addition to federal, state, and local regulations, future development pursuant to the General Plan would not impede or redirect flood flows, and impacts would be less than significant.

Flood Hazards
With the implementation of General Plan policies and federal, State, and local regulations, future development pursuant to the General Plan would not release pollutants due to inundation, and impacts would be less than significant.

Released water from a seiche would result in much smaller footprints than the dam inundation zones, and the probability of this occurring is extremely low. In the rare chance that a seiche does occur, the seiche would flow into the dam inundation zones. However, with implementation of General Plan policies and federal, State, and local regulations, impacts would be less than significant.

The General Plan area is more than 30 miles from the Pacific Ocean, well outside of the tsunami inundation zone. No impacts would arise from tsunamis.

Water Quality Control Plan or Sustainable Groundwater Management Plan Specific measures for surface and groundwater quality were previously outlined and are in place to ensure future development has a less than significant. General Plan regulations and policies ensure that future development does not obstruct or conflict with the Corona Groundwater Management Plan. In addition, the goals and policies in the General Plan would ensure that the City would not obstruct with implementation of the watershed action plan for the Santa Ana Watershed Region of Riverside County, the Recharge Master Plan for the Temescal Basin, or the Corona Groundwater Management Plan. Therefore, buildout of the General Plan would not obstruct or conflict with the implementation of a water quality control plan or a sustainable groundwater management plan and impacts would be less than significant.

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5. Environmental Analysis

5.10.2 Impacts Associated with the Proposed Project
Would the project:

Environmental Issues
Condition 1:

Substantial
Change in
Project
Requiring
Major
Revisions
Condition 2:

Substantial
Change in
Circumstances
Requiring
Major
Revisions
Condition 3:

New
Information
Showing New
or Increased
Significant
Effects
Less Than
Significant
Impact/No
Changes or
New
Information
Requiring
Preparation of
an EIR/MND No Impact
a) Violate any water quality standards or waste
discharge requirements or otherwise
substantially degrade surface or
groundwater quality?
X
b) Substantially decrease groundwater
supplies or interfere substantially with
groundwater recharge such that the project
may impede sustainable groundwater
management of the basin?
X
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; X
ii) substantially increase the rate or
amount of surface runoff in a manner
which would result in flooding on- or
off-site;
X
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
X
iv) impede or redirect flood flows? X
d) In flood hazard, tsunami, or seiche zones,
risk release of pollutants due to project
inundation?
X
e) Conflict with or obstruct implementation of a
water quality control plan or sustainable
groundwater management plan?
X
a) Violate any water quality standards or waste discharge requirements or otherwise substantially degrade surface or groundwater quality?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. Urban runoff from storms or nuisance flows (runoff during dry periods) from development

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projects can carry pollutants to receiving waters. Runoff can contain pollutants such as oil, fertilizers, pesticides, trash, and sediment. This runoff can flow directly into local streams or storm drains and continue through pipes until it is released untreated into a local waterway and eventually the ocean. Untreated stormwater runoff degrades water quality in surface waters and groundwater and can affect drinking water, human health, and plant and animal habitats. The construction and operational phases of the proposed project could have the potential to impact water quality. The following is a discussion of the potential impacts that the construction and operational phases of the proposed project could have on water resources and quality.

Construction
Clearing, grading, excavation, and construction activities associated with the proposed project may impact water quality through soil erosion and increasing the amount of silt and debris carried in runoff. Additionally, the use of construction materials such as fuels, solvents, and paints may present a risk to surface water quality. Finally, the refueling and parking of construction vehicles and other equipment on-site during construction may result in oil, grease, or related pollutant leaks and spills that may discharge into the storm drain system.

The proposed project would be required to comply with all applicable regulatory requirements governing water quality. The proposed project would be required to comply with the National Pollutant Discharge Elimination System Construction General Permit (CGP) (2022-0057-DWQ). The CGP requires the preparation of a Stormwater Pollution Prevention Plan (SWPPP) that incorporates BMPs to control sedimentation, erosion, and hazardous materials contamination of runoff during construction. The State Water Resource Control Board (SWRCB) mandates that projects that disturb one or more acres of land must obtain coverage under the Statewide CGP. Prior to the start of construction activities, the project applicant must file Permit Registration Documents (PRDs) with the SWRCB, which includes a Notice of Intent, risk assessment, site map, annual fee, signed certification statement, SWPPP, and post-construction water balance calculations. The construction contractor is required to maintain a copy of the SWPPP on-site at all times and implement all construction BMPs identified in the SWPPP during construction activities. Prior to the issuance of a grading permit, the project applicant is required to provide proof of filing of the PRDs with the SWRCB, which includes preparation of SWPPP.

The SWPPP must describe construction BMPs that address pollutant source reduction and provide measures/controls to mitigate potential pollutant sources. Which includes, but is not limited to erosion controls, sediment controls, tracking controls, non-storm water management, materials and waste management, and good housekeeping practices. Submittal of the PRDs and implementation of the SWPPP and its associated BMPs throughout the construction phase would result in an impact of less than significant. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.

Operation
Once the proposed project has been constructed, urban runoff could include a variety of contaminants that are typical of the operation of park facilities and could impact water quality. As discussed in Section 5.9.2(b), above, the proposed project would be required to comply with applicable federal and state laws and regulations

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5. Environmental Analysis

governing the use, storage, transport, and disposal of hazardous materials would ensure impacts would be less than significant.

Further, the proposed project would implement BMPs to control and amount and quality of the stormwater leaving the project site, and the proposed project would not violate any water quality standards or waste discharge requirements or otherwise substantially degrade surface or ground water quality. Thus, impacts would be less than significant. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.
b) Substantially decrease groundwater supplies or interfere substantially with groundwater recharge such that the project may impede sustainable groundwater management of the basin? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. The project site is located within the Upper Santa Ana Valley–Temescal Groundwater Subbasin, with a total of 23,500 acres (CDWR 2024b; Corona 2021). According to the City of Corona Urban Water Management Plan, the city relies on groundwater for approximately 50 percent of its potable water supplies by natural and artificial means (Corona 2021). The main source of recharge for the groundwater reservoir is the tributaries existing in the surrounding mountains and hillsides, thus urban areas which include the project site are not high priority recharge areas.

The project site is already developed, and contains impervious and pervious surfaces, and runoff from the proposed project would go directly into the ground or to the storm drains along the streets that bound the project site: Quarry Street, East 6th Street, East Gran Boulevard, and Rimpau Avenue. The project site is not used for groundwater recharge activities or extraction. The proposed project would result in approximately 215,640 square feet of new impervious surfaces on the project site with the construction of a new community center, aquatics center, parking lot, driveways, and walkways. The proposed project site would increase the total amount of impervious surfaces in the Temescal Groundwater Subbasin by less than 1 percent, which would be a minor increase in impervious services to the basin.3 As discussed in 5.10.2(a), the proposed project would be required to comply with all applicable regulations governing water quality and use, including General Plan Policy U-5.1. Therefore, the slight increase of impervious surfaces on the project site would not substantially decrease groundwater supplies nor interfere with groundwater recharge. Thus, impacts would be less than significant. Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.
3 1 sq ft. = .0000229 ac
215,640 sq ft. = 4.95
(4.95 ac project site ÷ 23,500 ac ) 10 0= 0.02 percent

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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 a substantial erosion or siltation on- or off-site? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. Erosion and siltation impacts that could result from alteration of drainage patterns would, for the most part, occur during the proposed project’s construction phase, which would include site preparation and grading activities. Environmental factors that affect erosion include topography, soil type, wind, and rainfall. Siltation is associated with sediment transport and deposition in waterways. Because the project would disturb more than one acre of land, the City would be required to prepare and implement a SWPPP under the requirements of the GCP issued by the SWRCB. The SWPPP would specify BMPs for reducing or eliminating soil erosion from the site during project construction and operation. Erosion control measures implemented as part of BMPs may include the placement of sandbags around basins; use of proper grading techniques; appropriate sloping, shoring, and bracing of the construction site; using mulch, geotextiles, hydroseeding, swales, and earth dikes; and covering topsoil stockpiles.

The proposed project would not involve the alteration of any natural drainage channels or any watercourse.

The project’s Preliminary WQMP includes BMPs that would minimize erosion or siltation on- or off-site during the operational phase of the proposed project. These BMPs would preserve the existing drainage patterns by directing flow to the same pre-development off-site discharge locations; disconnecting impervious areas and diverting runoff into self-treating landscaping or proprietary biotreatment BMPs; implementing water-efficient landscaping; protecting slopes to reduce the risk of scouring; and revegetating disturbed areas.

The SWPPP would describe the BMPs to reduce the impact of erosion and siltation to less than significant.

Accordingly, no new significant impacts or impacts of greater severity than those identified in the 2020 Certified EIR would occur. No changes or new information would require preparation of a supplemental or subsequent EIR.
ii) Substantially increase the rate or amount of surface runoff in a manner which would result in flooding on- or offsite?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. The project site is built out with hardscape, park play fields, and associated structures.

Furthermore, the proposed project would not involve the alteration of any natural drainage or watercourse.

As discussed above, the proposed project would only result in a minor increase of impervious surfaces on the project site. Thus, the amount of stormwater runoff reaching the City’s storm drain system would be similar to existing conditions. The proposed project would not substantially increase the rate or amount of surface runoff in a manner that would cause flooding on or off site. The proposed project would comply with city policies, including Policy IU-2.9, which requires that grading plans be designed and implemented to reduce stormwater runoff by capturing rainwater on-site and storing it on a temporary, short-term basis to facilitate groundwater recharge rather than relying solely on community drainage facilities. Therefore,

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5. Environmental Analysis