Corona City Council
August 5, 2026

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis

5.17 TRANSPORTATION/TRAFFIC

5.17.1 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 transportation/traffic impacts.

Plan Consistency
Implementation of the Approved Project would increase demand for public transit, bicycle, and pedestrian facilities, which would require the improvement and expansion of the circulation system. The Circulation Element includes policies that support public transit, bicycle improvements, and improvements to the pedestrian facilities. Additionally, the General Plan is consistent with the 2016 SCAG Regional Transportation Plan/Sustainability Communities Strategy (RTP/SCS). Future development would be constructed in consistency with regional and local planning efforts supporting these modes of travel.

Traffic generated by General Plan Buildout conditions plus the traffic generated by regional growth would contribute to the existing congestion of I-15 and SR-91 and, therefore, would conflict with the Riverside County Congestion Management Plan (CMP). A potentially significant impact was identified.

Trip Generation
The City of Corona has adopted a threshold of no net increase in VMT compared to existing conditions.

Buildout of the Approved Project is anticipated to increase VMT compared to existing conditions due to the planned growth in the outlying areas of the City rather than in the City center, which is already built out.

Cumulatively, the buildout of the General Plan would result in a slight (0.03 percent) increase in VMT. The increase in VMT forecasted is within the model standard error and is likely negligible. However, cumulative impacts are conservatively considered significant because the model results show an increase compared to the 2004 General Plan.

Circulation Improvements and Emergency Access
Buildout of the Approved Project would involve the alteration, intensification, and redistribution of land uses in the City, and thus, improvements to the circulation network. These improvements would be subject to review and future consideration by the City’s Public Works engineering staff. Roadway improvements would have to be made in accordance with the City’s circulation plan and roadway design guidelines and meet design guidelines in the California Manual of Uniform Traffic Control Devices and the Caltrans Roadway Design Manual.

Adherence to the local and State policies reduces impacts, and implementation of the General Plan would not result in hazardous conditions, create conflicting uses, or cause a detriment to emergency vehicle access.

CITY PARK REVIT A LIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis
June 2026 Page 147

5.17.2 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) Conflict with a program, plan, ordinance or
policy addressing the circulation system,
including transit, roadway, bicycle and
pedestrian facilities?
X
b) Conflict or be inconsistent with CEQA
Guidelines § 15064.3, subdivision (b)? X
c) Substantially increase hazards due to a
geometric design feature (e.g., sharp curves
or dangerous intersections) or incompatible
uses (e.g., farm equipment)?
X
d) Result in inadequate emergency access? X
a) Conflict with a program, plan, ordinance or policy addressing the circulation system, including transit, roadway, bicycle and pedestrian facilities?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. A significant impact may occur if the proposed project conflicts with an applicable plan, ordinance, or policy establishing measures of effectiveness for the performance of the circulation system. The City’s General Plan Circulation Element sets forth goals and policies pertaining to complete streets, transit and public transportation, bicycle routes and pedestrian facilities, and safety, among others. The proposed project would support the Circulation Element.

Proposed project features would include pedestrian walkways connecting facilities within the site, as well as connections with the adjacent public sidewalks. The proposed project also includes street trees and streetscaping plants along public frontages in accordance with the City’s standards to increase tree canopy and provide a safe and inviting new pedestrian network. Bicycle access is available via bike lanes along the north and south sides of East 6th Street in both directions. The proposed project would not impact the existing bicycle access and circulation. Additionally, RTA Bus Route 1 services the Sixth Street bus stop adjacent to the site. The proposed project would not impact bus, and RTA Bus Route 1 would continue to serve users of the project site.

The proposed project would help implement and be consistent with the General Plan’s goals and policies, including but not limited to:
 Policy CE-5.1. Provide for safety of bicyclists, equestrians, and pedestrians by adhering to national standards and uniform practices; adhere to accessibility requirements for people with disabilities.

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis

 Policy CE-5.2. Maintain existing pedestrian facilities and encourage new development to provide walkways between and through developments.
 Policy CE-5.6. Encourage new and existing development to provide accessible and secure areas for bicycle storage. Provide bicycle racks or storage facilities at public facilities and require bicycle parking, storage, and other support facilities as part of new office and retail developments.

The proposed project would not result in conflicts with adopted policies, plans, or programs, nor is it expected to negatively affect the performance or safety of existing or planned pedestrian, bicycle, or transit facilities. It would have a less than significant impact on transit, roadway, bicycle, and pedestrian facilities in the vicinity of the project site. 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 or be inconsistent with CEQA Guidelines § 15064.3, subdivision (b)? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. On September 27, 2013, SB 743 was signed into law, which started a process that fundamentally changed transportation impact analysis as part of CEQA compliance. These changes include the elimination of auto delay, level of service, and other similar measures of vehicular capacity or traffic congestion as a basis for determining significant impacts in CEQA review. As part of the updated CEQA Guidelines, the new criteria “shall promote the reduction of greenhouse gas emissions, the development of multimodal transportation networks, and a diversity of land uses” (Public Resources Code sec. 21099(b)(1)). On January 20, 2016, the Governor’s Office of Planning and Research released revisions to its proposed CEQA guidelines for the implementation of SB 743. Final review and rulemaking for the new guidelines were completed on December 28, 2018, when the California Natural Resource Agency certified and adopted the CEQA Guidelines update package, including guidelines implementing SB 743.

Vehicle miles traveled (VMT) is an indicator of the travel levels on the roadway system by motor vehicles. It corresponds to the number of vehicles multiplied by the distance traveled in a given period over a geographical area. In other words, VMT is a function of (1) number of daily trips and (2) the average trip length (VMT = daily trips x average trip length).

A VMT Screening Analysis was conducted for the proposed project and is included in Appendix F.

Transportation impacts under CEQA are based on VMT. Per the City of Corona Guidelines, several screening criteria may be applied to determine the need for VMT modeling and analysis. Projects that meet any of the following screening criteria are generally presumed to generate below-average VMT and therefore have a lessthan-significant transportation impact under CEQA:
 Projects located within Transit Priority Areas (TPAs) or High Quality Transit Areas (HQTAs) as determined by the most recent Southern California Association of Governments (SCAG) RTP/SCS. TPAs are defined as a ½ mile radius around an existing or planned major transit stop or an existing stop along a high quality transit corridor. HQTAs are defined as a corridor with fixed route bus service with service intervals no longer than 15 minutes during peak commute hours.

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5. Environmental Analysis
June 2026 Page 149
 Projects located in a low VMT-generating Traffic Analysis Zone (TAZ).

As confirmed with the SCAG HQTA Map, the project site is determined to be within an HQTA as required by the City of Ontario Guidelines and RTA Bus Route 1 services the Sixth Street bus stop adjacent to the site.

Therefore, the proposed project satisfies the HQTA criteria. The Western Riverside Council of Governments VMT Tool confirmed that the project site is in a low-VMT generating zone (Albert J. Webb Associates 2025).

Additionally, the proposed project consists of revitalizing the existing Corona City Park and does not result in a change from the existing public park space. The proposed project is consistent with the SCAG SCS/RTP and is screened out from further analysis based on the City of Corona Guidelines. Thus, the project is considered to have a less-than-significant impact on VMT and therefore screened from further analysis Therefore, 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.
c) Substantially increase hazards due to a geometric design feature (e.g., sharp curves or dangerous intersections) or incompatible uses (e.g., farm equipment)? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. Vehicular access to the project site is planned to be accommodated by a total of six vehicle access points: an ingress and egress access point via Rimpau Avenue, two ingress/egress access point via Quarry Street, one ingress/egress access point via East Grand Boulevard, and two ingress/egress access point via East 6th Street. The new vehicle access points would be designed and constructed to ensure adequate vehicle and emergency access and provide a continuous path of travel. All access and circulation improvements would be reviewed by the CFD and would be constructed to City and CFD standards. The proposed project does not include any major changes to roadways, or pedestrian circulation. The proposed project includes improvements to the on-site vehicular circulation discussed in Section 3.2.5 and Figure 6. Based on the Transportation Assessment there would be no deficiencies at the studied roadway segments at and surrounding the project site as a result of the proposed project (Appendix G). The proposed project would not cause or contribute to excessive queuing and would not result in a safety impact at the Caltrans off-ramps (Main Street & SR 91 westbound and eastbound ramps). The Transportation Assessment identifies additional circulation improvement measures that may be incorporated during final design to further enhance on-site circulation efficiency. These measures are not required to avoid or reduce a significant transportation impact associated with the proposed project. The proposed project’s driveways and vehicular access points would not introduce hazardous design features. Additionally, the proposed project is an urban area and does not include incompatible uses such as farm equipment. As such, the proposed project does not represent an incompatible use. Therefore, 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) Result in inadequate emergency access?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. The proposed project would provide adequate emergency access to the project site and does not

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis

alter any existing public roadways. All proposed parking lot and circulation improvements are subject to CFD review and approval. Additionally, the proposed project includes a new fire lane that would extend through the central portion of the project site, connecting East 6th Street to Quarry Street, providing additional emergency access to the project site Therefore, the proposed project would result in less than significant impacts to emergency access. 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.

5.17.3 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.

The proposed project is scoped out of VMT and therefore the following mitigation does not apply.

T-1 The City shall consider the following implementation programs to reduce citywide VMT:
 VMT exchange program. VMT generators can select from a pre-approved list of mitigation projects that may be located within the same jurisdiction or possibly from a larger area. The intent is to match the project’s needed VMT reduction with a specific mitigation project of matching size and to provide evidence that the VMT reduction will reasonably occur.
 VMT Mitigation Bank. A mitigation bank is intended to serve as an entity or organization that pools fees from development projects across multiple jurisdictions to spend on larger scale mitigation projects. This concept differs from the more conventional impact fee program approach described above in that the fees are directed to a few larger projects that have the potential for a more significant reduction in VMT and the program is regional in nature.

CITY PARK REVIT A LIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis
June 2026 Page 151

5.18 TRIBAL CULTURAL RESOURCES

5.18.1 Summary of Impacts Identified in the Program EIR The 2020 Certified EIR concluded that impacts to tribal cultural resources would be less than significant with the implementation of mitigation measures.

Tribal Cultural Resources
A total of 70 previously recorded resources within the City of Corona (including 30 prehistoric resources) and 86 resources in the City’s SOI (including 74 prehistoric resources). NAHC stated that buildout of the Approved Project would impact potential sites and provided a list of 31 Native American groups and individuals who may have knowledge of tribal cultural resources (TCR) in the City. Future development could include grading and construction activities of undeveloped areas and disturb tribal cultural resources. Adherence to Approved Project policies and state guidelines would reduce impacts; however, ground disturbing activities could be potentially significant to TCR. Mitigation Measures TCR-1 through TCR-3 and Mitigation Measure CUL-5 identified in the 2020 Certified EIR would reduce potential impacts associated with tribal cultural resources to a level that is less than significant.

5.18.2 Impacts Associated with the Proposed 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) Would the project cause a substantial
adverse change in the significance of a
tribal cultural resource, defined in Public
Resources Code § 21074 as either a site,
feature, place, cultural landscape that is
geographically defined in terms of the size
and scope of the landscape, sacred place,
or object with cultural value to a California
Native American tribe, and that is:
i) Listed or eligible for listing in the
California Register of Historical
Resources, or in a local register of
historical resources as defined in
Public Resources Code section
5020.1(k), or
X

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis

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
ii) A resource determined by the lead
agency, in its discretion and supported
by substantial evidence, to be
significant pursuant to criteria set forth
in subdivision (c) of Public Resources
Code § 5024.1. In applying the criteria
set forth in subdivision (c) of Public
Resource Code § 5024.1, the lead
agency shall consider the significance
of the resource to a California Native
American tribe.

X
a) Would the project cause a substantial adverse change in the significance of a tribal cultural resource, defined in Public Resources Code section 21074 as either a site, feature, place, cultural landscape that is geographically defined in terms of the size and scope of the landscape, sacred place, or object with cultural value to a California Native American tribe, and that is:
i) Listed or eligible for listing in the California Register of Historical Resources, or in a local register of historical resources as defined in Public Resources Code section 5020.1(k), or No Impact. As shown in Figure 3, Aerial Photograph with Photo Locations, the project site is developed with the Corona City Park and related buildings, play structures, and site improvements. The existing park began development in 1912 and became Corona’s first public park opening in 1913. The AARIE Report prepared for the proposed project (Appendix D) conducted a records search and identified four previously recorded resources on the project site. However, these resources are not identified TCRs. No TCRs listed or eligible for listing in the California Register of Historical resources or in a local register of historical resources as defined in Public Resources Code Section 5020.1(k) were identified in the project site or immediate vicinity.

Therefore, no impacts to TCRs listed or eligible for listing in the California Register of Historical Resources, or in a local register of historical resources 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. ii) A resource determined by the lead agency, in its discretion and supported by substantial evidence, to be significant pursuant to criteria set forth in subdivision (c) of Public Resources Code section 5024.1. In applying the criteria set forth in subdivision (c) of Public Resource

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Code Section 5024.1, the lead agency shall consider the significance of the resource to a California Native American tribe.

Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. The formal notification pursuant to AB 52 is not required for an addendum. However, the City notified a total of 31 tribes and conducted informal consultation with the Gabrielino Band of Mission Indians–Kizh Nation for the Approved Project. The Gabrielino Band of Mission Indians–Kizh Nation, identified the project area within their geographic and ancestral area. Although the 2020 Certified EIR provided TCR mitigation measures, the Gabrielino Band of Mission Indians–Kizh Nation provided their own mitigation measures to protect the potential TCRs that could inadvertently be discovered during the proposed project’s ground-disturbing activities. Mitigation measures provided by the Gabrielino Band of Mission Indians–Kizh Nation have been incorporated into the mitigation measures identified by the 2020 Certified EIR, as applicable. Implementation of TCR-1 and TCR-2, described below, in accordance with General Plan Policies HR-3.3 and HR-4.4, would ensure that impacts to tribal cultural resources are 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.

5.18.3 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.

TCR-1 Tribal Cultural Resources Monitoring Prior to Commencement of Ground Disturbing Activities. The project archaeologist, in consultation with interested tribes, the developer and the City of Corona, shall develop an Archaeological Monitoring Plan (AMP) to address the details, timing and responsibility of archaeological and cultural activities that will occur on the project site. Details in the AMP shall include:

A. The project applicant/lead agency shall retain a Native American Monitor from or approved by the Gabrieleño Band of Mission Indians – Kizh Nation (“Tribe”). The monitor shall be retained prior to the commencement of any “ground-disturbing activity” for the subject project at all project locations (i.e., both on-site and any off-site locations that are included in the project description/definition and/or required in connection with the project, such as public improvement work). “Ground-disturbing activity” shall include, but is not limited to, potholing, auguring, tree removal, boring, grading, excavation, drilling, and trenching.

B. A copy of the monitoring agreement shall be submitted to the lead agency prior to the earlier of the commencement of any ground-disturbing activity, or the issuance of any permit necessary to commence a ground-disturbing activity.

C. The monitor will complete daily monitoring logs that will provide descriptions of the relevant ground-disturbing activities, the type of construction activities performed,

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

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5. Environmental Analysis

locations of ground-disturbing activities, soil types, cultural-related materials, and any other facts, conditions, materials, or discoveries of significance to the Tribe. Monitor logs will identify and describe any discovered TCRs, including but not limited to, Native American cultural and historical artifacts, places of significance, etc. as defined in Public Resources Code Section 21074, (collectively, tribal cultural resources, or “TCR”), as well as any discovered Native American human remains and associated grave goods. Copies of monitor logs will be provided to the project applicant/lead agency upon written request to the Tribe.

D. On-site tribal monitoring shall conclude upon written confirmation to the Tribe from a designated point of contact for the project applicant/lead agency that all grounddisturbing activities and phases that may involve ground-disturbing activities on the project site or in connection with the project are complete.

1. Project-related ground disturbance (including, but not limited to, brush clearing, grading, trenching, etc.) and development scheduling;

2. The development of a rotating or simultaneous schedule in coordination with the developer and the project archeologist for designated Native American Tribal Monitors from the consulting tribes during grading, excavation and ground disturbing activities on the site: including the scheduling, safety requirements, duties, scope of work, and Native American Tribal Monitors’ authority to stop and redirect grading activities in coordination with all project archaeologists (if the tribes cannot come to an agreement on the rotating or simultaneous schedule of tribal monitoring, the Native American Heritage Commission shall designate the schedule for the onsite Native American Tribal Monitor for the proposed project);

3. The protocols and stipulations that the developer, City, Tribes and project archaeologist will follow in the event of inadvertent cultural resources discoveries, including any newly discovered cultural resource deposits that shall be subject to a cultural resources evaluation.

At least 30-days prior to application for a grading permit and before any brush clearance, grading, excavation and/or ground disturbing activities on the site take place, the future developer shall retain a tribal cultural monitor to monitor all ground-disturbing activities in an effort to identify any unknown archaeological resources.

Pursuant to the AMP, a tribal monitor the Gabrieleño Band of Mission Indians – Kizh Nation shall be present during the initial grading activities. If tribal resources are found during grubbing activities, the tribal monitoring shall be present during site grading activities.

TCR-2 Treatment and Disposition of Unanticipated Discovery of Tribal Cultural Resources or Human Remains.

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June 2026 Page 155
A. Native American human remains are defined in PRC 5097.98 (d)(1) as an inhumation or cremation, and in any state of decomposition or skeletal completeness. Funerary objects, called associated grave goods in Public Resources Code Section 5097.98, are also to be treated according to this statute.

B. Human remains and associated grave goods shall be treated alike per California Public Resources Code section 5097.98(d)(2).

C. Any discovery of human remains/associated grave goods shall be kept confidential as required by state law.

D. Upon discovery of any TCRs, all construction activities in the immediate vicinity of the discovery shall cease (i.e., not less than the surrounding 50 feet) and shall not resume until the discovered TCRs are removed in the form and/or manner the Tribe deems appropriate, in the Tribe’s sole discretion, and for any purpose the Tribe deems appropriate, including for educational, cultural and/or historic purposes.

E. In the event of a discovery of Native American human remains, the project applicant shall comply with PRC 5097.98.

In the event that Native American cultural resources are inadvertently discovered during the course of any ground disturbing activities, including but not limited to brush clearance, grading, trenching, etc. grading for the proposed project, the following procedures will be carried out for treatment and disposition of the discoveries:

1. Notification of Tribes: If tribal resources are found, Gabrieleño Band of Mission Indians – Kizh Nation and Augustine Band of Cahuilla Indians shall also be contacted for further evaluation of the resources.

2. Temporary Curation and Storage: During the course of construction, all discovered resources shall be temporarily curated in a secure location onsite or at the offices of the project archaeologist. The removal of any artifacts from the project site will need to be thoroughly inventoried with tribal monitor oversite of the process; and

3. Treatment and Final Disposition: The landowner(s) shall relinquish ownership of all cultural resources, including sacred items, burial goods, and all archaeological artifacts and non-human remains as part of the required mitigation for impacts to cultural resources.

The applicant shall relinquish the artifacts through one or more of the following methods and provide the City of Corona with evidence of same:
a. Accommodate the process for onsite reburial of the discovered items with the consulting Native American tribes or bands. This shall include measures and provisions to protect the future reburial area from any future impacts. Reburial shall not occur until all cataloguing, basic analysis, and other analyses as recommended by the project archaeologist and approved by consulting tribes and basic recordation have been completed; all documentation should be at a level of

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

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5. Environmental Analysis

standard professional practice to allow the writing of a report of professional quality;
b. A curation agreement with an appropriate qualified repository within San Bernardino County that meets federal standards per 36 CFR Part 79 and therefore would be professionally curated and made available to other archaeologists/researchers for further study. The collections and associated records shall be transferred, including title, to an appropriate curation facility within San Bernardino County, to be accompanied by payment of the fees necessary for permanent curation;
c. For purposes of conflict resolution, if more than one Native American tribe or band is involved with the project and cannot come to an agreement as to the disposition of cultural materials, they shall be curated at the San Bernardino County Museum by default;
d. At the completion of grading, excavation and ground disturbing activities on the site, a Phase IV Monitoring Report shall be submitted to the City documenting monitoring activities conducted by the project archaeologist and Native Tribal Monitors within 60 days of completion of grading. This report shall document the impacts to the known resources on the property; describe how each mitigation measure was fulfilled; document the type of cultural resources recovered and the disposition of such resources; provide evidence of the required cultural sensitivity training for the construction staff held during the required pregrade meeting; and, in a confidential appendix, include the daily/weekly monitoring notes from the archaeologist. All reports produced will be submitted to the City, County Museum, and consulting tribes.

TCR-3 During construction activities, the project applicant shall allow additional archaeological monitors of Native American tribes to access the project site on a volunteer basis to monitor grading and excavation activities.

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5.19 UTILITIES AND SYSTEM SERVICES

5.19.1 Summary of Impacts Identified in the Program EIR The 2020 Certified EIR concluded that the Approved Project resulted in less than significant impacts to utilities and service systems.

Sewer System
Buildout of the Approved Project would involve the installation of new or expanded sewer laterals and mains in the City and SOI. Full buildout under the proposed General Plan is estimated to generate an increase of total sewer flows in the City and SOI by 4,058,546 gallons per day (GPD) or 12 percent. Existing sewer flows in the City and SOI are 15.2 million gallons per day (MGD), and proposed conditions would be 17.1 MGD.

The 1.8 million gallons per day (MGD) (1,830,240 GPD) change in sewer flows between existing conditions and proposed conditions would not exceed the projected future capacity of the City’s Water Reclamation Facilities (WRFs) which have a total future treatment capacity of 18 MGD. Additionally, developer fees and individual required permits and applications would vary be required and reduce impacts. No impact is anticipated.

Water Supply Systems
Buildout of the Approved Project would increase the population in the City and SOI by approximately 11,511 residents. Major deficiencies are not anticipated as the City has confirmed that it would have adequate capacity to accommodate the proposed increases in water demands under the buildout of the Approved Project.

Additionally, individual projects would be subject to City permits, fees, and applications in order to ensure that these projects would not pose burdens on the existing infrastructure. No significant impacts from the construction or expansion of water facilities or water supplies are anticipated.

Storm Drainage Systems
Portions of the City and SOI are vulnerable to flooding. To prevent and control flooding, the City prepared a Strom Drain Master Plan which provided three deficiency remedies – installing new systems, replacing systems, and installing parallel systems – to prevent and control flooding. The City DWP provides references on the NPDES residential, industrial/commercial, and construction/ Water Quality Management Plan (WQMP) guidelines in order to regulate the types of discharge that enter the storm drain system. Future individual developments built according to the proposed General Plan would also require an assessment of how the project would affect the existing and proposed storm drain system. Funding for drainage facilities would come from development impact fees collected under Chapter 16.23, Development Impact Fees, of the City’s Municipal Code. Therefore, the State and local policies, including the General Plan, as well as the improvements recommended in the Storm Drain Master Plan Update, would reduce the potential impacts of development on the drainage system within the City of Corona.

Solid Waste
Buildout of the General Plan would result in an increase of 63,900 tons per year (approximately 175 tons per day). The two landfills accepting the majority of landfilled solid waste from Corona have a total remaining

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capacity of 178,177,170 cubic yards and a combined residual daily disposal capacity of 14,817 tons per day.

Additionally, the County of Riverside is required to maintain 15 years’ identified disposal capacity, or have a plan to transform or divert its waste, pursuant to AB 939. There is adequate landfill capacity in the region for solid waste that would be generated by the buildout of the General Plan, and impacts were less than significant.

5.19.2 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) Require or result in the relocation or
construction of new or expanded water,
wastewater treatment or storm water
drainage, electric power, natural gas, or
telecommunications facilities, the
construction or relocation of which could
cause significant environmental effects?
X
b) Have sufficient water supplies available to
serve the project and reasonably
foreseeable future development during
normal, dry and multiple dry years?
X
c) Result in a determination by the wastewater
treatment provider which serves or may
serve the project that it has adequate
capacity to serve the project’s projected
demand in addition to the provider’s existing
commitments?
X
d) Generate solid waste in excess of state or
local standards, or in excess of the capacity
of local infrastructure, or otherwise impair
the attainment of solid waste reduction
goals?
X
e) Comply with federal, state, and local
management and reduction statutes and
regulations related to solid waste?
X

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a) Require or result in the relocation or construction of new or expanded water, wastewater treatment or storm water drainage, electric power, natural gas, or telecommunications facilities, the construction or relocation of which could cause significant environmental effects? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND.

Water
The proposed project would redevelop the existing park with a new community center, sports facilities, aquatics center and pool, play fields, a skate area, a splash pad, a stage and screen area for community events including market/vender spaces, and ornamental landscaping. Water is currently provided to the project site via the City of Corona Department of Water and Power’s water mains, which includes a 48-inch water line along Quarry Street and East Grant Boulevard and a 12-inch water line along Rimpau Avenue, with 8-inch water lines on-site (Corona 2022, 2019b).

Water supply to the City of Corona Department of Water and Power (CDWP) is provided via imported water from the Western Municipal Water District (WMWD), groundwater from two local basins the Temescal Basin and Bedford-Coldwater Basin, and reclaimed water from landscape irrigation and other nonpotable uses (Corona 2021). Potable water would be provided to the new building through connections to the existing water mains. The proposed water system improvements would be designed and constructed in accordance with the California Building Code and CALGreen requirements, such as CALGreen Division 5.3, Water Efficiency and Conservation. Additionally, as discussed in Section 5.19.2(b), the City contains sufficient supplies to provide water services to the City and the proposed project during normal years, single dry years, and five consecutive dry years projected through 2045. Therefore, the proposed project would not require the construction of new or expanded water facilities that could cause significant effects. 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.

Wastewater
The proposed project includes the construction of an aquatics center, pool, and splash pad. Wastewater services are provided by the water reclamation providers. CDWP provides wastewater services to the project site. The CDWP wastewater system includes 368 miles of gravity sewer pipes, 14 lift stations and force mains, and 3 wastewater treatment plants (Corona 2021). The three water reclaimant facilities treat up to 15.5 million gallons per day (MGD), and the Western Riverside County Wastewater Authority contains 2.37 MGD of capacity for the City (Corona 2019b).

The proposed project would utilize the existing 8- to 12-inch pipes surrounding the project site (Corona 2022).

As further discussed in Section 5.19.2(c), the proposed project would not substantially increase wastewater.

Wastewater generated at the proposed project would be conveyed to the existing sewer lines within the project site. Therefore, the proposed project would not require the construction of new or expanded wastewater facilities that could cause significant environmental effects. Impacts would be less than significant. Accordingly,

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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.

Stormwater Drainage
As discussed in Section 5.10, the proposed project would result in a slight increase in impervious surfaces compared to existing conditions with the construction of the proposed project. The stormwater from the proposed project would be conveyed to existing stormwater drains or to the neighboring storm drain system along roadways, to the storm drain channel/Temescal Wash approximately 0.10 miles northeast. The proposed project would not significantly increase or change the stormwater volume, rate, or pattern. Beyond connecting to the existing stormwater system. 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.

Electric Power
Electricity is provided by Southern California Edison. The proposed project would connect to existing electric power infrastructure for operation. Although the proposed project would result in a higher electricity demand than existing conditions, the increase would be negligible in Southern California Edison’s capacity. Furthermore, the development of the new concessions buildings and other structures would be required to comply with energy efficiency standards set forth by the California Building Energy Efficiency Standards for Residential Buildings (Title 24, Part 6). Implementation of the proposed project would not result in major construction related to electrical power facilities that could cause significant environmental impacts. 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.

Natural Gas
Natural gas service is provided by the Southern California Gas Company to the City of Corona. As discussed in Section 5.6, Energy, the natural gas demand by the proposed 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 would be similar to development contemplated in the 2020 Certified EIR. The proposed project would not result in any impacts with respect to natural gas usage and the project would not require the construction of new or expanded natural gas facilities. Therefore, no 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.

Telecommunications
The proposed project would not require additional telecommunications facilities as the project site would continue to be served by existing providers in the region. The proposed project would not require off-site

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construction or relocation of utilities, and therefore no 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. b) Have sufficient water supplies available to serve the project and reasonably foreseeable future development during normal, dry and multiple dry years?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. CDWP provides potable water and non-potable water to the project site. Sources of potable water for CDWP includes imported water from the Western Municipal Water District (WMWD), treated groundwater from two local basins the Temescal Basin and Bedford-Coldwater Bason, reclaimed water from landscape irrigation, and other non-portable uses (Corona 2021). According to the City of Corona’s 2020 Urban Water Management Plan, the City has reliable and adequate supplies to meet water demands during normal years, single dry years, and five consecutive dry years projected through 2045. The UWMP discussed having a surplus of water supply in 2045 during a normal year of 7,871 acre-foot per year (AFY) and an excess of 6,643 AFY after five consecutive dry years, thus would have sufficient supplies to prove water for the projected growth of the City and projects.

The proposed community center and aquatics center would increase the demand for water services. The average pool water evaporation rate is about a quarter of an inch of water per day (American Leak Detection 2022).

Assuming two pools, the outdoor water use needed to account for pool water evaporation is approximately 3,111 gpd. Additionally, as seen in Table 15, Proposed Increase in Portable Water Demand, the community center would increase daily water demand by 32,433gpd, for a total increase of approximately 35,544 gpd. The proposed project is expected to increase water daily water demand by 0.10 AFY,6 which would be considered a negligible increase compared to projected excess supplies in water supply.

The proposed project’s water demand would be captured by the projected demand of the UWMP. Furthermore, development of the proposed project would be required to comply with the provisions of CALGreen 6 1 AFY = 325,851 gallons
32,433 ÷ 325,851 = 0.10 AFY
Table 15 Proposed Increase in Potable Water Demand
Category
Demolished
(SF)
New Facility
(SF)
Net Increase
(SF)
Water Demand Rate
gpd/SF1
Daily Water
Demand (gpd)
Community Center 3,100 60,000 56,090 0.572 32,433
Aquatics Center and
Swimming Pool 19,840 — — 3,1113
Total 3,100 79,840 56,090 — 35,544
Source: CAPCOA 2022
Notes: gpd = gallons per day; SF = square feet
1 350 days per year is used to convert gallons per year to gallons per day. 2 The rate for “Government (Civic Center)” is used. 3 Evaporation off the surface of the pool is calculated by multiplying 0.021 ft/day (half an inch a day) by the surface area of the pool (19,840 square feet) for a total of 416 cubic feet per day of water lost to evaporation. 416 cubic feet per day is 3,111 gpd.

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Division 5.3, Water Efficiency and Conservation, including those of Sections 5.303, Indoor Water Use, and

5.304, Outdoor Water Use. Additionally, the proposed aquatics center and fountain would be consistent with the 2020 UWMP policies, which prohibit the overfilling of pools and require the installation of recirculating pumps to limit the waste of water. Based on the City of Coronas UWMP, the City contains adequate water supplies to meet the water demands of the proposed project and the City during normal, dry, and multiple dry years. 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. c) Result in a determination by the waste water treatment provider, which serves or may serve the project that it has adequate capacity to serve the project’s projected demand in addition to the provider’s existing commitments?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. The proposed project would redevelop the existing park with a new community center, sports facilities, aquatics center and pool, play fields, a skate area, a splash pad, a stage and screen area for community events including market/vender spaces, and ornamental landscaping. Wastewater services are provided by CDWP to the project site. The CDWP wastewater system includes 368 miles of gravity sewer pipes, 14 lift stations and force mains, and three wastewater treatment plants (Corona 2021). The three water reclaimant facilities treat up to 15.5 million gallons per day (MGD), and the Western Riverside County Wastewater Authority provides 2.37 MGD of capacity for the City (Corona 2019b). The proposed project would utilize the existing 8- to 12-inch pipes surrounding the project site (Corona 2022). The stormwater and wastewater flows from the project site are expected to marginally increase but would not be enough to require the construction of new or expanded wastewater treatment facilities. Though the proposed project will increase employee capacity at the project site, which would increase wastewater generation, the increase would not overburden the wastewater treatment provider that serves the site. Therefore, 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) Generate solid waste in excess of state or local standards, or in excess of the capacity of local infrastructure, or otherwise impair the attainment of solid waste reduction goals? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. During construction, the proposed project would generate some demolition debris from clearance and waste debris. Construction solid waste generation would be minimal due to the demolition of small structures and, CALGreen Section 5.408, Construction Waste Reduction, Disposal, and Recycling, requires that at least 65 percent of the nonhazardous construction and demolition waste from nonresidential construction operations be recycled and/or salvaged for reuse.

The City of Corna contrasts with Waste Management Inc. (WMI) for trash and recycling services. The proposed project site would continue to operate as a park facility. However, the proposed project would construct a larger community center with an anticipated increase in events and an aquatics center, which would increase the amount of solid waste generated by Corona City Park. Solid waste generated in the City of Corona is

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transported to two landfills, the El Sobrante and Olinda Alpha Landfill (Cal Recycle 2024). The El Sobrante Landfill in the City of Corona will receive the solid waste from the project site. The Sobrante Landfill contains a remaining capacity of 143,977,170 cubic years as of April 2018.

Table 16 Landfill Capacity
Landfill Name
Current Remaining
Capacity
(tons) 1
Maximum Daily
Disposal Capacity
(tons)
Average Daily
Disposal
(tons)2
Residual Daily
Disposal Capacity
(tons)
Annual
Disposal
Capacity
(tons)
Estimated
Close Date
El Sobrante
Landfill 143,977,170 16,054 5,599 10,455 3,136,500 2051 Sources: CalRecycle 2019b, 2019c.
1 A Volume-to-Weight conversion rate of 2,000 lbs/cubic yard (1 tons/cubic yard) for “Compacted - MSW Large Landfill with Best Management Practices” is used as per CalRecyle’s 2016 Volume-to-Weight Conversion Factors, https://www.epa.gov/sites/production/files/201604/documents/volume_to_weight_conversion_factors_memorandum_04192016_508fnl.pdf. 2 Average daily disposal is calculated based on 300 operating days per year. The facility is open six days per week, Monday through Saturday, except certain holidays.

Table 17 Proposed Increase in Solid Waste Generation
Category
Demolished
(SF)
Expanded
(SF)
New Facility
(SF)
Generation Rate
(tons/1,000 SF/year)
Total
(tons/year)
Community Center 3,100 60,000 56,090 5.71 320
Aquatics Center
and
Swimming
Pool
19,840 5.72 113
Total 3,100 79,840 56,090 — 433
Source: CAPCOA 2022q and 2022b.

Notes: SF = square feet
1 The rate for “Government (Civic Center)” is used. 2 The rate for “Recreational Swimming Pool” is used.

As demonstrated in Table 16 and Table 17, there is adequate landfill capacity for the proposed project’s forecast solid waste, and project development would not require additional landfill capacity at the landfill serving the City. The total amount of solid waste expected to be generated under the proposed project would be minimal compared to the annual disposal capacity of the landfill serving the City. Therefore, 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.
e) Comply with federal, state, and local management and reduction statutes and regulations related to solid waste?
Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. Solid waste would be generated during the construction and operation of the proposed project.

The proposed project would comply with all regulations pertaining to solid waste, such as the California Integrated Waste Management Act and local recycling and waste programs. The proposed project would comply

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with all applicable laws and regulations and make every effort to reuse and/or recycle the construction debris that would otherwise be taken to a landfill. Section 5.408 of CALGreen requires that at least 65 percent of the nonhazardous construction and demolition waste from nonresidential construction operations be recycled and/or salvaged for reuse. Hazardous waste, such as paint used during construction, would be disposed of only at facilities permitted to receive them in accordance with local, state, and federal regulations. The proposed project would comply with all applicable federal, state, and local statutes and regulations related to solid waste disposal. Therefore, 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.

5.19.3 Adopted Mitigation Measures Applicable to the Proposed Project No mitigation measures related to utilities and service systems were outlined in the 2020 Certified EIR.

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5.20 WILDFIRE

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

Emergency Evacuation Plan
The City of Corona has prepared an Emergency Operations Plan (EOP) and Local Hazard Mitigation Plan (LHMP) to ensure the effective allocation of resources for the maximum benefit during a time of emergency, and to identify local hazards and provide mitigation measures to address these hazards, respectively. Buildout of the Approved Project would not result in substantial changes to the circulation patterns or emergency access routes in the City or SOI identified in the City’s LHMP and EOP. The City also has established evacuation plans and protocols to ensure the safe and orderly notification and evacuation of people in Corona should the need arise. Future development would be required to comply with applicable local and State standards, fire and building codes, and to ensure adequate access project would be reviewed by the CFD prior to approval.

Adherence to local and State policies would reduce impacts to less than significant.

Exacerbate Wildfire Risk
The City of Corona and its SOI are vulnerable to and at significant risk of wildfires. The City has approximately 9,300 housing units and 3 million square feet of office, commercial, and industrial buildings in the very high FHSZ. Development associated with the buildout of the General Plan would result in new development within the wildland-urban interface (WUI) and would place more assets in the very high FHSZ. Future development would be required to adhere to state and local codes (California Fire Code, CAL FIRE fire safe design requirements, City Fire and Public Works Standards, and other standards). Because development in the WUI presents challenges for fire protection and suppression, development in these areas are required to abide by the CFD’s Structure Protection Plan (SPP), which addresses fuel modification requirements. With adherence to these building practices and fuel modification requirements in the SPP, development associated with the General Plan would not exacerbate risk.

Associated Infrastructure
Buildout of the General Plan would result in additional infrastructure, including roadways and transmission lines, in undeveloped areas of the City and SOI in order to serve new development. Some of this infrastructure would be placed with the very high FHSZ. To protect development in the very high FHSZ, the City requires adherence to a wide range of state and local codes (California Fire Code, CAL FIRE fire safe design requirements, City Fire and Public Works Standards, and other standards), including SPP requirements for new infrastructure. With adherence to these building practices and fuel modification requirements in the SPP, infrastructure associated with the General Plan buildout would not exacerbate risk.

Expose People or Structures to Significant Risk
Wildfires on hillsides can create hazards in the form of debris or mudflows, which occurs most frequently on hillsides that have little to no vegetation and are most common following wildfires. As identified above, to

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protect development in the very high FHSZ, with adherence to these building practices and fuel modification requirements in the SPP, impacts associated with the General Plan buildout would not exacerbate risk.

Areas of the city adjacent to the Santa Ana River, Temescal Creek, and Mabey Canyon Wash are designated as Flood Zone A, a 100-year flood zone, and other areas of the city are within a 500-year flood zone. Future development would be required to meet federal floodplain regulations, including that the lowest floor of the structure is raised above a 100-year based flood elevation. Therefore, impacts to the exposure of structures or people to flooding as a result of post-fire slope instability would be less than significant.

Marginally stable slopes may be subject to landslides caused by earthquakes. The terrain of the City is varied, ranging from relatively flat to hilly. Grading permits for hillside developments must have an engineering geology report prepared and submitted to the City. Therefore, impacts as a result of post-fire slope instability would be less than significant.

5.20.2 Impacts Associated with the Proposed Project
If located in or near state responsibility areas or lands classified as very high fire hazard severity zones, 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) Substantially impair an adopted emergency
response plan or emergency evacuation
plan?
X
b) Due to slope, prevailing winds, and other
factors, exacerbate wildfire risks, and
thereby expose project occupants to
pollutant concentrations from a wildfire or
the uncontrolled spread of a wildfire?
X
c) Require the installation or maintenance of
associated infrastructure (such as roads,
fuel breaks, emergency water sources,
power lines or other utilities) that may
exacerbate fire risk or that may result in
temporary or ongoing impacts to the
environment?
X
d) Expose people or structures to significant
risks, including downslope or downstream
flooding or landslides, as a result of runoff,
post-fire slope instability, or drainage
changes?
X

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a) Substantially impair an adopted emergency response plan or emergency evacuation plan? Less Than Significant Impact/No Changes or New Information Requiring Preparation of an EIR/MND. The project site is located within a LRA as a non-Very High Fire Hazard Severity Zone (VHFHSZ) (Cal Fire 2024). The project site is not located in a SRA or lands classified as VHFHSZ. The nearest FHSZ is approximately 2.2 miles southeast of the project site and designated as a VHFHSZ in a SRA. The project site does not abut a VHFHSZ and is not located within the Wildlife Urban Interface (SILVIS 2019).

Additionally, the project site is located within an urbanized, built-out area of the City. Operation of the proposed project would continue to operate as a park and serve nearby residents. The proposed project would follow the appropriate local and regional procedures and policies regarding emergency response and would not interfere with any adopted emergency response or evacuation plan. The project site would accommodate emergency and ingress and egress by emergency vehicles as required by the CFD. All access features are to and must satisfy the City of Corona’s fire code. Compliance with the required fire code would ensure that adequate emergency access is provided. Additionally, as discussed in Section 5.17, Transportation, the proposed project would not physically impede the circulation network and roadways surrounding the park. Therefore, no 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.
b) Due to slope, prevailing winds, and other factors, exacerbate wildfire risks, and thereby expose project occupants to pollutant concentrations from a wildfire or the uncontrolled spread of a wildfire?
No Impact. As previously discussed, the project site and surrounding area are flat and in an urbanized area, and there is no wildland susceptible to wildfire on or near the site. The project site is not located within a VHFHSZ. The surrounding area is currently developed, and therefore lacks the vegetation necessary for the uncontrolled spread of a wildfire. Construction activities would be subject to review by CFD to ensure adequate fire protection according to the standards of the Uniform Fire Code and the California Code. Therefore, no 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.
c) Require the installation or maintenance of associated infrastructure (such as roads, fuel breaks, emergency water sources, power lines or other utilities) that may exacerbate fire risk or that may result in temporary or ongoing impacts to the environment? No Impact. The project site is in an urbanized area and is served by existing utility infrastructure, including water, wastewater, and power. The proposed project is located within an urbanized area and would not require the installation or maintenance of associated infrastructure that may exacerbate fire risk. Therefore, no 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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d) Expose people or structures to significant risks, including downslope or downstream flooding or landslides, as a result of runoff, post-fire slope instability, or drainage changes? No Impact. The project site is in an urbanized area and there is no wildland susceptible to wildfire on or near the site. CAL FIRE does not classify any adjacent areas as a VHFHSZ. Additionally, according to the FEMA flood zone map, the project site is located within Zone X, an area of minimal flood hazard (FEMA 2009). The project site and surrounding area are generally flat and would have low potential of post-fire slope instability.

Therefore, no 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.

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

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5.21 MANDATORY FINDINGS OF SIGNIFICANCE
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) Does the project have the potential to
substantially degrade the quality of the
environment, substantially reduce the
habitat of a fish or wildlife species, cause a
fish or wildlife population to drop below selfsustaining levels, threaten to eliminate a plant or animal community, substantially
reduce the number or restrict the range of a
rare or endangered plant or animal or
eliminate important examples of the major
periods of California history or prehistory?
X
b) Does the project have impacts that are
individually limited, but cumulatively
considerable? (“Cumulatively considerable”
means that the incremental effects of a
project are considerable when viewed in
connection with the effects of past projects,
the effects of other current projects, and the
effects of probable future projects.)
X
c) Does the project have environmental effects
which will cause substantial adverse effects
on human beings, either directly or
indirectly?
X
a) Does the project have the potential to substantially degrade the quality of the environment, substantially reduce the habitat of a fish or wildlife species, cause a fish or wildlife population to drop below self-sustaining levels, threaten to eliminate a plant or animal community, substantially reduce the number or restrict the range of a rare or endangered plant or animal or eliminate important examples of the major periods of California history or prehistory? Less Than Significant Impact/ No Changes or New Information Requiring Preparation of an EIR/MND. The proposed project would not result in impacts beyond what was previously analyzed in the 2020 Certified EIR. The geographic range and severity of impacts to biological resources resulting from the proposed project would be similar to those that would result from implementation of the Approved Project.

The proposed project would not result in a significant impact to biological resources, consistent with the Approved Project, and mitigation measures BIO-1, BIO-2, BIO-3, and BIO-4 would ensure impacts to biological resources are reduced. The proposed project would incorporate all applicable mitigation measures identified in 2020 Certified EIR as discussed in Sections 5.3, Air Quality, 5.4, Biological Resources, 5.5, Cultural Resources, 5.7, Geology and Soils, , and 5.18, Tribal Cultural Resources, above. The proposed project would not result

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in any new impacts or substantially increase the severity of previously disclosed impacts related to biological, cultural, paleontological, or tribal cultural resources. Therefore, preparation of supplemental or subsequent EIR is not required by CEQA.
b) Does the project have impacts that are individually limited, but cumulatively considerable? (“Cumulatively considerable” means that the incremental effects of a project are considerable when viewed in connection with the effects of past projects, the effects of other current projects, and the effects of probable future projects.)?
Less Than Significant Impact/ No Changes or New Information Requiring Preparation of an EIR/MND. Changes proposed by the proposed project compared to the Approved Project would not result in any new cumulatively considerable impacts or substantially increase the severity of previously disclosed cumulatively considerable impacts. The 2020 Certified EIR addresses cumulative impacts in accordance with CEQA Guidelines Section 15130. Pursuant to CEQA Guidelines Section 15130 (b)(1), the information used in an analysis of cumulative impacts should come from one of two sources:
1) A list of past, present, and probable future projects producing related cumulative impacts, including, if necessary, those projects outside the control of the agency; or 2) A summary of projections contained in an adopted general plan or related planning document designed to evaluate regional or area-wide conditions.

The cumulative impacts identified in the 2020 Certified EIR used method No. 2. As discussed previously in this addendum, the proposed project would have no impact, or a less than significant impact/no changes as compared to the Approved Project. Therefore, all impacts are individually limited and would not result in any new cumulatively significant impacts compared to the Approved Project. Impacts would be less than significant, and the proposed project would not generate a new cumulatively considerable impact. The preparation of supplemental or subsequent EIR is not required by CEQA. c) Does the project have environmental effects which will cause substantial adverse effects on human beings, either directly or indirectly?
Less Than Significant Impact/ No Changes or New Information Requiring Preparation of an EIR/MND. The proposed project would not result in an increase of residents compared to the Approved Project. The proposed project would remain a locally serving park for the residents of the City of Corona.

The proposed project would comply with applicable local, state, and federal laws governing general welfare and environmental protection. The implementation of the required mitigation measures specified in the Approved Project, and incorporated into this addendum would reduce impacts to less than significant.

Changes proposed by the proposed project to the Approved Project would not result in any new substantial adverse impacts or substantially increase the severity of previously disclosed adverse impacts on human beings, either directly or indirectly. Therefore, a less than significant impact would occur and preparation of supplemental or subsequent EIR is not required by CEQA.

June 2026 Page 171

6. Findings
 As summarized below, and for the reasons described in Chapter 4, Environmental Analysis, of this Addendum, the City has concluded that the proposed project meets the conditions of CEQA Guidelines Section 15164 and that therefore an Addendum to the 2020 Certified EIR is the appropriate CEQA document to address the proposed project.
 As previously discussed, under CEQA Guidelines Section 15164, an addendum to an EIR may be prepared if only minor technical changes or additions are necessary or none of the conditions described in CEQA Guidelines Section 15162 calling for the preparation of a subsequent EIR have occurred. The following restates the standards set forth in CEQA Guidelines Section 15162 as they relate to the proposed project.

1. No substantial changes are proposed in the project which would require major revisions of the Certified EIR to the involvement of new significant environmental effect or a substantial increase in the severity of previously identified significant effect.

The proposed project would occur within the same boundaries of the project site. The proposed project would redevelop the existing park with a new community center, sports facilities, aquatics center and pool, play fields, a skate area, a splash pad, a stage and screen area for community events including market/vender spaces, and ornamental landscaping. The proposed project does not include a change in land use or additional development that was not previously analyzed in the 2020 Certified EIR. The proposed project includes construction-type activities previously analyzed in the 2020 Certified EIR. The proposed project does not include substantial changes compared to the Approved Project; implementation of the proposed project would not require revisions to the 2020 Certified EIR. The analysis provided in Chapter 4, Environmental Analysis, illustrates that the proposed project would not result in any new or more severe significant impacts than those identified in the 2020 Certified EIR.

2. No substantial changes occur with respect to the circumstances under which the project is undertaken which will require major revisions of the Certified EIR due to the involvement of new significant environmental effects or a substantial increase in the severity of previously identified significant effects.

Substantial changes have not occurred with respect to the circumstances under which the approved project was undertaken that would require major revisions to the 2020 Certified EIR. Under the Approved Project, the project site is zoned Parks with a land use designation as Open Space Recreational, which allows up park and recreational uses, and therefore, the Approved Project assumed that the project site would serve as a park and recreational use. Implementation of the proposed project would occur within the impact boundaries identified in the 2020 Certified EIR. The proposed project does not include a change in land use or propose

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6. Findings

any off-site improvements. Therefore, no proposed changes or revisions to the 2020 Certified EIR are required.

3. No 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
The proposed project would be implemented within the impact boundary identified for the Approved Project analyzed in the 2020 Certified EIR. Additionally, the proposed project does not include any land use changes; therefore, the proposed project would not affect the operational conditions analyzed in the 2020 Certified EIR. The construction activities associated with the proposed project would not include new construction equipment, intensity or methods that would substantially increase significant impacts identified in the 2020 Certified EIR.

B. Significant effects previously examined will be substantially more severe than shown in the previous EIR;
Based on the analysis above, the new components in the proposed project would not result in more severe impacts than those identified in the 2020 Certified EIR. All other operational characteristics of the approved project would remain unchanged from those evaluated in the 2020 Certified EIR and subsequent addenda.

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 Mitigation measures or alternatives previously found not to be feasible at the time the 2020 Certified EIR was prepared have not been identified as feasible. The proposed project would incorporate all applicable mitigation measures from the 2020 Certified EIR. The mitigation measures not applicable to the proposed project would continue to be valid, feasible, and applicable to the Approved Project as refined by in the subsequent addendum.

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.

No new mitigation measures or alternatives were identified. The existing applicable mitigation measures from the 2020 Certified EIR would reduce impacts to the feasible extent possible.

June 2026 Page 173

7. List of Preparers

CITY OF CORONA (LEAD AGENCY)
Rachel McLure, CIP Supervisor

PLACEWORKS (CEQA CONSULTANT)
Malia Durand, Principal
Emma Haines, Associate I
Natalie Phan, Planner
Angel Castro, Planner
Nicole Vermilion, Principal – Air Quality and Greenhouse Gas Emissions Emily Parks, Associate I – Air Quality and Greenhouse Gas Emissions Chris Shields, Senior Associate II, Noise & Vibration
Cary Nakama, Graphics Specialist

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CITY OF CORONA

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8. References
Bay Area Air Quality Management District (BAAQMD). 2023, May. California Environmental Quality Act Air Quality Guidelines. https://www.baaqmd.gov/plans-and-climate/california-environmentalquality-act-ceqa/updated-ceqa-guidelines.

CalEPA. 2025a, November 10 (accessed). Solid Waste Disposal Sites Identified by the Water Board with Waste Constituents above Hazardous Waste Levels Outside the Waste Management Unit. ———. 2025b, November 10 (accessed). List of Active Cease and Desist Orders and Cleanup and Abatement Orders from the Water Board.

California Air Pollution Control Officers Association (CAPCOA). 2022. Generation Rates. https://view.officeapps.live.com/op/view.aspx?src=https%3A%2F%2Fwww.caleemod.com%2Fdoc uments%2Fuser-guide%2F08_Appendix%2520G_v2022.1.1.3.xlsx&wdOrigin=BROWSELINK California Air Resources Board (CARB). 2005, April. Air Quality and Land Use Handbook: A Community Health Perspective. https://www.aqmd.gov/docs/default-source/ceqa/handbook/california-airresources-board-air-quality-and-land-use-handbook-a-community-health-perspective.pdf. ———. 2022, December. 2022 Scoping Plan for Achieving Carbon Neutrality. https://ww2.arb.ca.gov/sites/default/files/2023-04/2022-sp.pdf. ———. 2024, June 19 (accessed). Area Designations Maps/State and National. https://ww2.arb.ca.gov/resources/documents/maps-state-and-federal-area-designations.

California Department of Forestry and Fire Protection (CalFire). 2024, April 1. https://experience.arcgis.com/experience/03beab8511814e79a0e4eabf0d3e7247/ California Department of Conservation (DOC). 2024a, March 22 (accessed). The Farmland Mapping and Monitoring Program. https://maps.conservation.ca.gov/agriculture/#webmaps ———. 2024b, April 21 (accessed). Alquist-Priolo Earthquake Fault Zones. https://www.conservation.ca.gov/cgs/alquist-priolo.
———. 2024c, April 15 (accessed). Fault Activity Map. https://maps.conservation.ca.gov/cgs/fam/ ———. 2024d, April 27 (accessed). Mineral Lands Classification. https://maps.conservation.ca.gov/cgs/informationwarehouse/index.html?map=mlc.

California Department of Forestry and Fire Protection (CAL FIRE). 2024, April 1 . Fire Hazard Severity Zones Maps. https://experience.arcgis.com/experience/03beab8511814e79a0e4eabf0d3e7247/

CITY PARK REVITLIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

8. References

California Department of Transportation (Caltrans). 2024, April 8 (accessed). California State Scenic Highway System Map. https://caltrans.maps.arcgis.com/apps/ webappviewer/index.html?id=465dfd3d807c46cc8e8057116f1aacaa.

California Department of Water Resources (CDWR). 2024a, May 3. SGMA Data Viewer. https://sgma.water.ca.gov/webgis/?appid=SGMADataViewer#boundaries. ———. 2024b, May 13 (accessed). Dam Breach Inundation Map. https://fmds.water.ca.gov/webgis/?appid=dam_prototype_v2 Corona, City of. 2024a, March 22 (accessed). Property Information – Geography Information Services. https://corgis.coronaca.gov/apps/propertyinformation/.
———. 2024b. May 3. City Park Master Plan. https://www.citypark.coronaca.gov/. ———. 2024c. April 15 (accessed). Chapter 15.36 – Grading Regulations. https://ca.water.usgs.gov/land_subsidence/california-subsidence-areas.html ———. 2024d. August 6 (accessed). Chapter 12.22 – Community Urban Forest and Landscape Guidelines. https://codelibrary.amlegal.com/codes/corona/latest/corona_ca/0-0-0-42777 ———. 2024e. August 6 (accessed). Urban Forest Management Plan. chromeextension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.coronaca.gov/home/showpublishedd ocument/22458/637890970605900000.
———. 2023. 2020-204- General Plan.
https://www.coronaca.gov/home/showpublisheddocument/25479/638494039032370000 ———. 2022. City of Corona GIS Maps and Data - Sewer Gravity Main. https://giscityofcorona.opendata.arcgis.com/datasets/cityofcorona::sewer2/explore?layer=11&location=33.874801%2C-117.555952%2C16.00. ———. 2021, June 16. 2020 Urban Water Management Plan. chromeextension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.coronaca.gov/home/showpublishedd ocument/20292/637612402713400000.
———. 2019a, November 22. Standards of Coverage and Headquarters Services Assessment Volume 1 of 2 – Technical Report.
https://www.coronaca.gov/home/showpublisheddocument/17206/637102948578300000 ———. 2019b, December. Corona General Plan Technical Update. https://www.coronaca.gov/home/showpublisheddocument/17290/637122799157100000 ———. 2015. Historic Markers. https://www.coronaca.gov/government/departments/communitydevelopment/planning-division/historical-markers.

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CITY OF CORONA

8. References
June 2026 Page 177
———. 2014, December 15. City of Corona – Maintenance Services Department – Approved Street Tree List. chromeextension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.coronaca.gov/home/showpublishedd ocument/4561/636342430829570000
Department of Toxic Substances Control (DTSC). 2025a. EnviroStor. http://www.envirostor.dtsc.ca.gov/public/.
———. 2025b. Hazardous Waste Facilities Subject to Corrective Action.

Federal Emergency Agency (FEMA). 2008, August 28.
https://msc.fema.gov/portal/search?AddressQuery=930%20E%206th%20St%2C%20Corona%2C %20Ca%2092879%20.

International Dark-Sky Association (IDA). 2020. Outdoor Lighting Basics. https://www.darksky.org/ourwork/lighting/lighting-for-citizens/lighting-basics/.

National Park Service (NPS). 2024, March (accessed). National Register of Historic Places. https://www.nps.gov/maps/full.html?mapId=7ad17cc9-b808-4ff8-a2f9-a99909164466.

Office of Environmental Health Hazard Assessment (OEHHA). 2015, February. Air Toxics Hot Spots Program Risk Assessment Guidelines. Guidance Manual for Preparation of Health Risk Assessments. http://oehha.ca.gov/air/hot_spots/2015/2015GuidanceManual.pdf.

Peirce, R. (2004). Low frequency noise criteria for concerts. 29. 32-34.

RWDI. (2025). Amphitheater Events – Noise Impact Predictions Corona City Park. April 14th.

Southern California Association of Governments (SCAG). 2024, April 14. Connect SoCal Plan: The 2024– 2050 Regional Transportation Plan / Sustainable Communities Strategy of the Southern California Association of Governments. https://www.connectsocal.org/Pages/Connect-SoCal-Final-Plan.aspx.

South Coast Air Quality Management District (South Coast AQMD). 1993. California Environmental Quality Act Air Quality Handbook.
———. 2008, July. Final Localized Significance Threshold Methodology. https://www.aqmd.gov/docs/default-source/ceqa/handbook/localized-significancethresholds/final-lst-methodology-document.pdf. ———. 2010, September 28. Minutes for the GHG CEQA Significance Threshold Stakeholder Working Group #15. http://www.aqmd.gov/docs/default-source/ceqa/handbook/greenhouse-gases-(ghg)- ceqa-significance-thresholds/year-2008-2009/ghg-meeting-15/ghg-meeting-15-minutes.pdf. ———. 2011. Fact Sheet for Applying CalEEMod to Localized Significance Thresholds. http://www.aqmd.gov/docs/default-source/ceqa/handbook/localized-significancethresholds/caleemod-guidance.pdf.

CITY PARK REVITLIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

8. References

———. 2022, December. Final 2022 Air Quality Management Plan. https://www.aqmd.gov/docs/default -source/clean-air-plans/air-quality-management-plans/2022-air-quality-management-plan/final -2022-aqmp/final-2022-aqmp.pdf?sfvrsn=16.
———. 2023, March (revised). South Coast AQMD Air Quality Significance Thresholds. https://www.aqmd.gov/docs/default-source/ceqa/handbook/south-coast-aqmd-air-quality -significance-thresholds.pdf?sfvrsn=25.

Spatial Analysis For Conservation and Sustainability (SILVIS) Lab. 2019, May 17. Wildland Urban Interface. https://www.arcgis.com/home/webmap/viewer.html?layers=a4985d64969743db8feddf01c96c9435 State Water Resources Control Board (SWRCB). 2025. GeoTracker. http://geotracker.waterboards.ca.gov/.

United States Geological Survey (USGS). 2024, April 15 (accessed). Areas of Land Subsidence in California. https://ca.water.usgs.gov/land_subsidence/california-subsidence-areas.html.

United States Census. 2023, April 8 (accessed). QuickFacts. https://www.census.gov/quickfacts/fact/table/coronacitycalifornia/PST045222.

World Health Organization (WHO). 2022. WHO Global standard for safe listening venues & events.

RESOLUTION NO. 2689
MARD2026-0002 (City Park)
PAGE | 9
EXHIBIT “B”

MITIGATION MONITORING AND REPORTING PROGRAM
FOR

CITY PARK REVITALIZATION PROJECT

June 2026 | Mitigation Monitoring and Reporting Program State Clearinghouse No. 2018081039

CITY PARK REVITALIZATION PROJECT EIR

ADDENDUM
City of Corona
Prepared for:

City of Corona
Contact: Rachel McLure, Senior Project Manager
400 South Vicentia Avenue
Corona, California 92882
951.736.2400
Prepared by:

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

EXHIBIT 11 ~ PLACEWORKS

CITY PARK REVITALIZTION PROJEC T EIR ADDENDUM MITIGATION MONI TORING AND REPO RTING PROGRAM

CITY OF CORONA
Table of Contents
June 2026 Page i
Section Page

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

1.1 PURPOSE OF MITIGATION MONITORING AND REPORTING PROGRAM ............................ 1

1.2 PROJECT LOCATION .................................................................................................................................... 2

1.3 PROJECT DESCRIPTION .............................................................................................................................. 2

2. MITIGATION MONITORING AND CONDITIONS OF APPROVAL REQUIREMENTS .................. 5

2.1 MITIGATION MEASURES MATRIX .......................................................................................................... 5

2.2 CONDITIONS OF APPROVAL MATRIX ................................................................................................ 16

3. REPORT PREPARATION ............................................................................................................. 19

3.1 LIST OF PREPARERS .................................................................................................................................... 19 List of Tables
Table Page
Table 1 Mitigation Monitoring Requirements ................................................................................................ 6 Table 2 Conditions of Approval Requirements ........................................................................................... 17

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1. Introduction

1.1 PURPOSE OF MITIGATION MONITORING AND REPORTING

PROGRAM
This Mitigation Monitoring and Reporting Program (MMRP) has been developed to provide a vehicle by which to monitor mitigation measures and conditions of approval outlined in the Addendum to the Draft Environmental Impact Report (DEIR), State Clearinghouse No. 2018081039. The Mitigation Monitoring and Reporting Program has been prepared in conformance with Section 21081.6 of the Public Resources Code and Corona Monitoring Requirements. Section 21081.6 states:
(a) When making findings required by paragraph (1) of subdivision (a) of Section 21081 or when adopting a mitigated negative declaration pursuant to paragraph (2) of subdivision (c) of Section 21080, the following requirements shall apply:
(1) The public agency shall adopt a reporting or monitoring program for the changes made to the project or conditions of project approval, adopted in order to mitigate or avoid significant effects on the environment. The reporting or monitoring program shall be designed to ensure compliance during project implementation. For those changes which have been required or incorporated into the project at the request of a responsible agency or a public agency having jurisdiction by law over natural resources affected by the project, that agency shall, if so requested by the lead or responsible agency, prepare and submit a proposed reporting or monitoring program.
(2) The lead agency shall specify the location and custodian of the documents or other material which constitute the record of proceedings upon which its decision is based. (b) A public agency shall provide that measures to mitigate or avoid significant effects on the environment are fully enforceable through permit conditions, agreements, or other measures.

Conditions of project approval may be set forth in referenced documents which address required mitigation measures or, in the case of the adoption of a plan, policy, regulation, or other public project, by incorporating the mitigation measures into the plan, policy, regulation, or project design.
(c) Prior to the close of the public review period for a draft environmental impact report or mitigated negative declaration, a responsible agency, or a public agency having jurisdiction over natural resources affected by the project, shall either submit to the lead agency complete and detailed performance objectives for mitigation measures which would address the significant effects on the environment identified by the responsible agency or agency having jurisdiction over natural resources affected by the project, or refer the lead agency to appropriate, readily available guidelines or reference documents. Any mitigation measures submitted to a lead

CITY PARK REVITALIZTION PROJECT EIR ADDENDUM MITIGATION MONITORING AND REPORTING PROGRAM

CITY OF CORONA

1. Introduction

agency by a responsible agency or an agency having jurisdiction over natural resources affected by the project shall be limited to measures which mitigate impacts to resources which are subject to the statutory authority of, and definitions applicable to, that agency. Compliance or noncompliance by a responsible agency or agency having jurisdiction over natural resources affected by a project with that requirement shall not limit the authority of the responsible agency or agency having jurisdiction over natural resources affected by a project, or the authority of the lead agency, to approve, condition, or deny projects as provided by this division or any other provision of law.

CEQA requires that a reporting or monitoring program be adopted for the conditions of project approval that are necessary to mitigate or avoid significant effects on the environment (Public Resources Code 21081.6). The mitigation monitoring and reporting program is designed to ensure compliance with adopted mitigation measures during implementation of the Approved Project.

The mitigation measures presented below are applicable to the Corona City Park Revitalization Project (proposed project).

1.2 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. 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, vehiclemechanic shops, and commercial uses to the west.

1.3 PROJECT DESCRIPTION
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.

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

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1. Introduction
June 2026 Page 3
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.

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2. Mitigation Monitoring and Conditions of Approval
Requirements

2.1 MITIGATION MEASURES MATRIX
Project-specific mitigation measures have been categorized in matrix format, as shown in Table 1, Mitigation Monitoring Requirements. The matrix identifies the environmental factor, specific mitigation measures, schedule, and responsible monitor. The mitigation matrix will serve as the basis for scheduling the implementation of, and compliance with, all mitigation measures.

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2. Mitigation Monitoring and Conditions of Approval Requirements Page 6 PlaceWorks Table 1 Mitigation Monitoring Requirements
Mitigation Measure
Responsibility for
Implementation Timing
Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
AIR QUALITY AQ-1 The City of Corona shall require the following identified measures to 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: x Require fugitive-dust control measures that exceed SCAQMD’s Rule 403:
- Use of nontoxic soil stabilizers to reduce wind erosion. - Apply water every two and a half hours to active soildisturbing activities, or a minimum of three times per day. - Tarp and/or maintain a minimum of 24 inches of freeboard on trucks hauling dirt, sand, soil, or other loose materials. x Use construction equipment rated by the United States Environmental Protection Agency as having 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.
x Ensure that construction equipment is properly serviced and maintained to the manufacturer’s standards.
x Limit nonessential idling of construction equipment to no more than five consecutive minutes.
x Limit onsite vehicle travel speeds on unpaved roads to 25 miles per hour.
x Install wheel washers for all exiting trucks or wash off all trucks and equipment leaving the project area.

City of Corona and Construction Contractor
Technical Assessment: Prior to and During Construction Activities City of Corona Planning Division
BIOLOGICAL RESOURCES BIO-1 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 City of Corona Planning Division in consultation with a Qualified Biologist Prior to and During Construction Activities
City of Corona Planning Division

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2. Mitigation Monitoring Requirements
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Table 1 Mitigation Monitoring Requirements
Mitigation Measure
Responsibility for
Implementation Timing
Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
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. 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, DQGZKHQHYHQLQJWHPSHUDWXUHVDUHQRWEHORZÛ)DQGUDLQLVnot over 0.5 inch in 24 hours: x September 1 to October 31 (preferred): This is after the maternity season but prior to winter torpor.

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2. Mitigation Monitoring and Conditions of Approval Requirements Page 8 PlaceWorks Table 1 Mitigation Monitoring Requirements
Mitigation Measure
Responsibility for
Implementation Timing
Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
x 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: x 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. x 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 day-roosting 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.

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2. Mitigation Monitoring Requirements
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Table 1 Mitigation Monitoring Requirements
Mitigation Measure
Responsibility for
Implementation Timing
Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
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.

Qualified Biologist in coordination with the Construction Contractor and the City of Corona Planning Division Prior to Construction Activities
City of Corona Planning Division
BIO-3 If sensitive biological resources are known to occur within or adjacent to the proposed development project area, a projectspecific contractor training program shall be developed 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.

Qualified Biologist in coordination with the Construction Contractor and the City of Corona Planning Division Prior to Construction Activities
City of Corona Planning Division
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-by-project 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.

Qualified Biologist in coordination with the Construction Contractor and the City of Corona Planning Division During Construction Activities City of Corona Planning
Division
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.

Qualified Biologist in coordination with the Construction Contactor and the City of Corona Planning Division Prior to and During Construction Activities
City of Corona Planning Division

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2. Mitigation Monitoring and Conditions of Approval Requirements Page 10 PlaceWorks Table 1 Mitigation Monitoring Requirements
Mitigation Measure
Responsibility for
Implementation Timing
Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
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.

CULTURAL RESOURCESCUL-5 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 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 Qualified Archaeologist, in coordination with the City of Corona Planning Division Prior to and During GroundDisturbing Activities City of Corona Planning Division I I

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Table 1 Mitigation Monitoring Requirements
Mitigation Measure
Responsibility for
Implementation Timing
Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
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.

GEOLOGY AND SOILS GEO-1 High and Low-to-High Sensitivity. In areas designated as having “high” or “low-to-high” sensitivity for paleontological resources, the project applicant 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.

Qualified Paleontologist in coordination with the City of Corona Planning Division Prior to Approval of a Grading Permit
City of Corona Planning Division
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 Qualified Paleontologist in coordination with the Construction Contractor Prior to and During GroundDisturbing Activities City of Corona Planning Division

CITY PARK REVITALIZTION PROJEC T EIR ADDENDUM MITIGATION MONI TORING AND REPO RTING PROGRAM

CITY OF CORONA

2. Mitigation Monitoring and Conditions of Approval Requirements Page 12 PlaceWorks Table 1 Mitigation Monitoring Requirements
Mitigation Measure
Responsibility for
Implementation Timing
Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
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). and the City of Corona Planning Division
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.

Qualified Paleontologist in coordination with the Construction Contractor and the City of Corona Planning Division During Ground Disturbing Activities
City of Corona Planning Division
NOISE N-1 Construction contractors shall implement the following measures for construction activities conducted in the City. Construction plans submitted to the City shall identify these measures on demolition, grading, and construction plans submitted to the City. The City Corona Public Works Department shall verify that grading, demolition, and/or construction plans submitted to the City include these notations prior to issuance of demolition, grading and/or building permits. x During the active construction period, equipment and trucks used for project construction shall utilize the best available noise control techniques (e.g., improved mufflers, intake silencers, ducts, engine enclosures, and acoustically attenuating shields or shrouds), wherever feasible.

Construction Contractor and the City of Corona Public Works Department Prior to Approval of Demolition/Grading/Building Permits and During Construction Activities City of Corona Public Works Department

CITY PARK REVITALIZTION PROJEC T EIR ADDENDUM MITIGATION MONI TORING AND REPO RTING PROGRAM

CITY OF CORONA

2. Mitigation Monitoring Requirements
June 2026 Page 13
Table 1 Mitigation Monitoring Requirements
Mitigation Measure
Responsibility for
Implementation Timing
Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
x Impact tools (e.g., jack hammers and hoe rams) shall be hydraulic- or electric-powered wherever feasible. Where the use of pneumatic tools is unavoidable, an exhaust muffler on the compressed air exhaust shall be used along with external noise jackets on the tools. x Stationary equipment such as generators and air
compressors shall be located as far as feasible from noisesensitive uses. x Stockpiling shall be located as far as feasible from noisesensitive receptors. x Construction traffic shall be limited—to the extent feasible— to approved haul routes established by the City.
x Prior to the start of construction activities, a sign shall be posted at the entrance(s) to the job site, clearly visible to the public, that includes permitted construction days and hours, as well as the contact information of the City’s and contractor’s authorized representatives that are assigned to respond in the event of a noise or vibration complaint. If the authorized contractor’s representative receives a complaint, they shall investigate, take appropriate corrective action, and report the action to the City. x Signs shall be posted at the job site entrance(s), within the on-site construction zones, and along queueing lanes (if any) to reinforce the prohibition of unnecessary engine idling. All other equipment shall be turned off if not in use for more than 5 minutes. x During the entire active construction period and to the extent feasible, the use of noise-producing signals, including horns, whistles, alarms, and bells, shall be for safety warning purposes only. The construction manager shall be responsible for adjusting alarms based on the background

CITY PARK REVITALIZTION PROJEC T EIR ADDENDUM MITIGATION MONI TORING AND REPO RTING PROGRAM

CITY OF CORONA

2. Mitigation Monitoring and Conditions of Approval Requirements Page 14 PlaceWorks Table 1 Mitigation Monitoring Requirements
Mitigation Measure
Responsibility for
Implementation Timing
Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
noise level, or to utilize human spotters when feasible and in compliance with all safety requirements and laws. x When construction noise is predicted to exceed established noise standards and when the anticipated construction duration is two years or more, contractors shall erect temporary noise barriers, where feasible.

TRIBAL CULTURAL RESOURCES TCR-1 Tribal Cultural Resources Monitoring Prior to Commencement of Ground Disturbing Activities. A. The project applicant/lead agency shall retain a Native American Monitor from or approved by the Gabrieleño Band of Mission Indians – Kizh Nation (”Tribe”). The monitor shall be retained prior to the commencement of any “ground-disturbing activity” for the subject project at all project locations (i.e., both on-site and any off-site locations that are included in the project description/definition and/or required in connection with the project, such as public improvement work). “Ground-disturbing activity” shall include, but is not limited to, potholing, auguring, tree removal, boring, grading, excavation, drilling, and trenching. B. A copy of the monitoring agreement shall be submitted to the lead agency prior to the earlier of the commencement of any ground-disturbing activity, or the issuance of any permit necessary to commence a ground-disturbing activity.

C. The monitor will complete daily monitoring logs that will provide descriptions of the relevant ground-disturbing activities, the type of construction activities performed, locations of grounddisturbing activities, soil types, cultural-related materials, and any other facts, conditions, materials, or discoveries of significance to the Tribe. Monitor logs will identify and describe any discovered TCRs, including but not limited to, Native American cultural and historical artifacts, places of significance, etc. as defined in Public Resources Code Section 21074, (collectively, tribal cultural City of Corona Planning Division, Construction Contractor in coordination with Native American Tribal Monitor 30-days Prior to Issuance of a Grading Permit and During Ground Disturbing Activities City of Corona Planning Division

CITY PARK REVITALIZTION PROJEC T EIR ADDENDUM MITIGATION MONI TORING AND REPO RTING PROGRAM

CITY OF CORONA

2. Mitigation Monitoring Requirements
June 2026 Page 15
Table 1 Mitigation Monitoring Requirements
Mitigation Measure
Responsibility for
Implementation Timing
Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
resources, or “TCR”), as well as any discovered Native American human remains and associated grave goods. Copies of monitor logs will be provided to the project applicant/lead agency upon written request to the Tribe. D. On-site tribal monitoring shall conclude upon written confirmation to the Tribe from a designated point of contact for the project applicant/lead agency that all ground-disturbing activities and phases that may involve ground-disturbing activities on the project site or in connection with the project are complete.

TCR-2 Unanticipated Discovery of Tribal Cultural Resources or Human Remains.A. Native American human remains are defined in PRC 5097.98 (d)(1) as an inhumation or cremation, and in any state of decomposition or skeletal completeness. Funerary objects, called associated grave goods in Public Resources Code Section 5097.98, are also to be treated according to this statute. B. Human remains and associated grave goods shall be treated alike per California Public Resources Code section 5097.98(d)(2). C. Any discovery of human remains/associated grave goods shall be kept confidential as required by state law. D. Upon discovery of any TCRs, all construction activities in the immediate vicinity of the discovery shall cease (i.e., not less than the surrounding 50 feet) and shall not resume until the discovered TCRs are removed in the form and/or manner the Tribe deems appropriate, in the Tribe’s sole discretion, and for any purpose the Tribe deems appropriate, including for educational, cultural and/or historic purposes. E. In the event of a discovery of Native American human remains, the project applicant shall comply with PRC 5097.98.

City of Corona Planning Division and the applicable Native American Tribe During Ground Disturbing Activities
City of Corona Planning Division

CITY PARK REVITALIZTION PROJEC T EIR ADDENDUM MITIGATION MONI TORING AND REPO RTING PROGRAM

CITY OF CORONA

2. Mitigation Monitoring and Conditions of Approval Requirements

2.2 CONDITIONS OF APPROVAL MATRIX
Project-specific conditions of approval have been categorized in matrix format, as shown in Table 2, Conditions of Approval Requirements. The matrix identifies the environmental factor, specific conditions of approval, schedule, and responsible monitor. The conditions of approval matrix will serve as the basis for scheduling the implementation of, and compliance with, all conditions of approval.

CITY PARK REVITALIZTION PROJEC T EIR ADDENDUM MITIGATION MONI TORING AND REPO RTING PROGRAM

CITY OF CORONA

2. Mitigation Monitoring Requirements
June 2026 Page 17
Table 2 Conditions of Approval Requirements
Condition of Approval
Responsibility for
Implementation Timing
Responsibility for
Monitoring
Monitor
(Signature Required)
(Date of Compliance)
NOISE COA-N-1 The City shall implement measures to reduce amplified music or sound associated with live music concert and movie night events. The following measures shall be incorporated as conditions of approval for the proposed project: x Restrict amphitheater sound system output to an average of 90 dBA Leq, averaged over a 15-minute period, at a position located 100 feet from the central lawn or portable stage area and portable movie screen of the park. x Restrict instantaneous maximum sound levels allowed for live music concerts to 95 dBA Lmax at a position located 100 feet from the central lawn or portable stage area and portable movie screen of the park. x Noise monitoring will be conducted and monitored and
reviewed throughout the event to provide sound technicians with noise data for appropriate sound system mixing board adjustments to ensure compliance with regulations. x Noise monitoring will be conducted with a handheld sound level meter. The meter shall satisfy the American National Standards Institute (ANSI) standard for Type I or II instrumentation.

City of Corona Community Services Department
During Live Music Concerts and Movie Night Events at the Park City of Corona Community Services Department

CITY PARK REVITALIZTION PROJEC T EIR ADDENDUM MITIGATION MONI TORING AND REPO RTING PROGRAM

CITY OF CORONA

2. Mitigation Monitoring and Conditions of Approval Requirements Page 18 PlaceWorks This page intentionally left blank.

June 2026 Page 19

3. Report Preparation

3.1 LIST OF PREPARERS
City of Corona (Lead Agency)
Rachel McLure, Senior Project Manager
PlaceWorks (CEQA Consultant)
Malia Durand, Principal
Emma Haines, Associate I

CORONA GENERAL PLAN TECHNICAL UPDATE MITI GATION MONITORING AND REPORTING PROGRAM

CITY OF CORONA

3. Report Preparation

This page intentionally left blank.

City Park - Fig Tree

City Park - Founders' Rock

City Park - Historic Fountain City Park - Historic Fountain

City Park - Whistle Compresso
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FEC FEC FEC FEC
FEC FEC FEC 0 10 2472 144 6'-0" 665 666 667 668 668 668 667 668 667 665 666 666 667 665 666 667 668 669 666 667 668 666 665 666 665 666665 666 665 666 665 666 665 666 665 666 666 665 666 665 665 666 665 666 665 666 666 665 666 665 665 666 666 665 666 665 666 665 667666 668 665 666 666 666 666666 666 666 665665665 666 665 665 666 666 667 666 665 666 665 666 665 666 665 665 666 665 666 666 665666 665666 665 669 667 666 668 666 666 665 664 664 664 665 665665 668 665 668 GB GB GB 668 HB-1 HB-1 1"=40' 0 40' 80' 120' HISTORIC OBJECTS 23202 | CORONA CITY PARK | March 3, 2026 RELOCATED FOUNDER'S ROCK - 636'
RELOCATED STEAMENGINE - 374'
RELOCATEDFOUNTAIN - 40'
HISTORIC FIGTREE TO REMAININ PLACE Existing and Proposed Relocation of Historic ObjectsEXHIBIT 4 Page 1576 of 2528 
  




  


























 













            
  







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EXHIBIT 5

01. Playground

5 01. Playground

6 02. Pump Track & Basketball

7 03. Splash Pad

12 04. Aquatics Deck

13 05. Aerial

16 05. Community Canvas - Loop View

18 06. Entry

19 06. Entry - Drop-Off

20

Details: Review of proposed alterations to Historic District HD-005 (City Park), a designated historic district listed on the Corona Register of Historic Resources, as part of the Corona City Park Revitalization Project, located at 930 East Sixth Street.

LIST OF CONDITIONS

DEPARTMENT CONTACT
PLANNING Brendan Dalde

1. The project shall comply with all applicable requirements of the Corona Municipal Code (CMC) and ordinances and the relevant Specific Plan, if any, including the payment of all required fees.

2. The project shall comply with the mitigation measures identified in the City Park Revitalization Project EIR Addendum (prepared as an addendum to the 2020-2040 General Plan EIR).

3. The Community Services Department shall comply with the following operational requirements during all outdoor events, including festivals and live concerts, as identified in the City Park Revitalization Project EIR Addendum:
a) Restrict amphitheater sound system output to an average of 90 dBA Leq, averaged over a 15-minute period, at a position located 100 feet from the central lawn or portable stage area and portable movie screen of the park. b) Restrict instantaneous maximum sound levels allowed for live music concerts to 95 dBA Lmax at a position located 100 feet from the central lawn or portable stage area and portable movie screen of the park. c) Noise monitoring will be conducted and monitored and reviewed throughout the event to provide sound technicians with noise data for appropriate sound system mixing board adjustments to ensure compliance with regulations. d) Noise monitoring will be conducted with a handheld sound level meter. The meter shall satisfy the American National Standards Institute (ANSI) standard for Type I or II instrumentation.

Project Number: MARD2026-0002
Applied: 3/17/2026 Approved:

Closed: Expired:

Status: RECEIVED
Parent Project:

Site Address: 930 E SIXTH ST CORONA, CA 0
City of Corona
400 S Vicentia Ave ,
Description:

Applicant:
1 of 1
Project Conditions
City of Corona

P.O. Box 2904 Corona, California 92878 951.898.2044 www.corona-history.org August 4, 201
March 29, 2024
Ms. Evelyn Hildebrand
Associate Archaeologist
ECORP Consulting, Inc
2525 Warren Drive
Rocklin, CA 95677
RE: Cultural Resources Identification Effort for the Corona City Park Project, Riverside County, California
Dear Ms Hildebrand:

Unfortunately, most of the cultural resources in this area have been removed more than 20 years ago. i.e. The Plunge (1925-1945), the Armory Building (1950s-2021?, the big artillary piece (1918-1940s), the lighted softball diamond (1920s-1990?), the cactus garden, the wading pools, the long Spanish tile roofed picnic table pavilions, etc.

As far as we have been able to determine only one historic drinking fountain from 1919 (currently not connected to a water source), Founders Monument (Rock), (California Historical Landmark No. 738, placed 6/6/1960 and the historic palms, pines, cedars, fir, Moreton Bay Fig and other trees remain. The remaining meandering asphalt roadway with parking has been an integral part of the park for many decades and conveys its authenticity as an old park. Concrete walkways have been suggested but are not usually found or desired in old parks because the tree root system is so developed that within a short period of time the sidewalks will become cracked and broken and possibly become trip hazards. We can provide photographs of historic elements from when they were a part of the City Park, if that is desired.

There is an historic site commemorative marker monument to the Municipal Plunge (1925-1945) under the canopy of the gigantic historic Moreton Bay Fig tree near the southwestern corner of the Park. Part of the compressor from the Sunkist Growers plant that powered the whistle heard at least three times daily for more than 60 years is located on the ground near the park sign facing East Sixth Street. We would be happy to share other comments or reactions to existing facilities and proposed changes.

Sincerely,

FOR THE BOARD OF DIRECTORS
Richard Winn
Richard Winn, Acting Secretary
Attachment: Aerial photograph of the Park

P.O. Box 2904 Corona, California 92878 951.898.2044 www.corona Page 1590 of 2528 -history.org 1 Evelyn Hildebrand
From: Rich Winn <[email protected]>
Sent: Saturday, April 13, 2024 2:16 AM
To: Evelyn Hildebrand
Subject: Corona City park Response letter - 2
Ms. Hildebrand:

As far as historic photographs, we are not sure how much use they might be for this new project. but I will assemble whatever I have access to and forward them to you via another message. The Corona Public Library should have a more comprehensive collection.

Somewhere "out there" are a few that represent the park in its best current condition.

The current design as presented depicts just the minimum tokens to its historic roots:- Founders Rock, the Sunkist air compressor mechanism and the 1919 fountain and the many historic trees, and these must be retained.

We would prefer retaining the historic light poles and lamps that are in the park and adding to them and not placing the modern bulb lights shown in the latest presentation. Decorating a sow's ear with bangles and baubles does not a silk purse make.

I understand that one idea was trying to show a gabled roof as homage to a old packing house. A valiant effort but the giant windows betray that thought. Take a look at the Corona Marine building at Third Street and West Grand if you want authenticity -- that includes the building materials used to construct the building and the saw-tooth roof line that provides plenty of illumination.

We would like to reiterate that a new park built to modern standards is not what is needed or desired. The meandering asphalt roadway with necessary but largely infrequent post and plank fencing and at-grade parking has been an integral part of the park and should be preserved to convey its ambiance as an old park. Concrete walkways have been suggested but are not usually found or desired when updating old parks because the tree root system is so developed that within a short period of time the sidewalks will become cracked and broken and possibly become trip hazards. At grade walkways of decomposed granite are more likely to reduce the trip and fall exposure from cracked and broken concrete and would facilitate less costly maintenance and repair expenses.

Our thoughts are that before turning a shovel of soil more effort should be made to assess just who is the "target audience" for whom this new and improved park is being refurbished.

2 Surveys of our members tend to indicate that it is not going to draw residents from South Corona, nor is it likely to draw residents from Auburndale or Sierra Del Oro other than for special events, Cinco de Mayo celebrations and such, as it currently does.

Regards,
For the Board of Directors,
Richard Winn
Acting Secretary
Corona Historic Preservation Society

[1] Delja, “CHL # 738 Corona Founders Monument Riverside.” [2] “General 2 — the Circle Corona: City Park.”
City Park Relocation of Historic Resources
To the Historic Preservation Board: March 3, 2026
The City Park Revitalization project envisions a comprehensive redevelopment of City Park, spanning approximately 20.5 acres. It is guided by the City Park Master Plan, which reflects extensive community outreach on desired amenities and improvements. The project includes the construction of a new community center with recreational, administrative, and multipurpose spaces; a state-of-theart aquatic center with lap and activity pools, water features, and support facilities; and a variety of outdoor recreational amenities, including a playground, splash pad, skate park, pump track, basketball courts, and a large turf area for special events. The project also encompasses improved circulation with walking paths and accessible connections, upgraded parking and site utilities, lighting and security enhancements, irrigation and landscaping improvements, and overall site modernization, all designed to provide safe, engaging, and inclusive spaces that meet the community's recreational and social needs of the community.

As a part of the City Park Revitalization project, four (4) historic landmarks are to be reviewed by the Historic Preservation Board.

This letter is submitted in support of our application to relocate the historic landmarks located at City Park, 930 E 6th St, Corona, CA 92879.

This application is made in compliance with section 17.63.120 of the Corona Municipal Code, which states under prohibition, “No person shall alter, relocate or demolish any historic resource, and no permit, entitlement or approval therefore shall be issued, without first submitting a plan for review and obtaining approval.”
We are seeking the Historic Preservation Board’s review and approval of the following items:

1. FOUNDER’S ROCK - The Founders’ Rock is a monument that commemorates the founders who purchased La Sierra Rancho of Bernardo Yorba and the El Temescal Grant of Leandro Serrano on May 4, 1886, leading to the foundation of the citrus colony and town of Corona [1]. It is proposed that the Founders’ Rock be relocated to a prominent location at the front of the new community center.

2. SUNKIST AIR COMPRESSOR - The Sunkist air compressor was part of the Sunkist plant that opened in 1913, helping develop the citrus industry in Corona and California overall, while powering a whistle heard by the community for decades [2]. It is Docusign Envelope ID: 443808C2-767F-4355-B21F-3E80F536860D EXHIBIT 9 Page 1593 of 2528
City of Corona • 400 S. Vicentia Ave. Corona, CA 92882 • (951) 736-2400 proposed that the compressor be relocated to a visible, active area between the skate park and playground, where visitors can easily see and appreciate this historic artifact.

3. DRINKING FOUNTAIN - Also built in 1913, the drinking fountain is a testament to the city’s early development and the desire for central green space, with its design now signifying the evolution of the park. It is proposed that the fountain be relocated to a serene, passive green area, creating a peaceful and respectful setting that honors the park’s legacy.

4. FIG TREE – Ficus macrophylla - The historic fig tree is a living landmark, representing both the city’s heritage and the natural beauty that has long defined the area. Its size, age, and prominence make it a distinctive feature of the landscape, serving as a tangible connection to Corona’s past. It is proposed that the tree be preserved and protected in its current location to ensure its continued presence as a symbol of the city’s history, community identity, and commitment to conserving significant natural and cultural resources.

The attached Relocation Plan identifies the proposed locations of the historic landmarks within the City Park Revitalization Project. All items will be relocated using the utmost care and secured in their new location to ensure compliance with preservation standards.

The project ensures the continued preservation and public appreciation of these historic landmarks for generations to come.

Sincerely,
Donna Finch
Director of Community Services
Attachments: Relocation Plans
Docusign Envelope ID: 443808C2-767F-4355-B21F-3E80F536860D

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FEC FEC FEC FEC
FEC FEC FEC 0 10 2472 144 6'-0" 665 666 667 668 668 668 667 668 667 665 666 666 667 665 666 667 668 669 666 667 668 666 665 666 665 666665 666 665 666 665 666 665 666 665 666 666 665 666 665 665 666 665 666 665 666 666 665 666 665 665 666 666 665 666 665 666 665 667666 668 665 666 666 666 666666 666 666 665665665 666 665 665 666 666 667 666 665 666 665 666 665 666 665 665 666 665 666 666 665666 665666 665 669 667 666 668 666 666 665 664 664 664 665 665665 668 665 668 GB GB GB 668 HB-1 HB-1 1"=40' 0 40' 80' 120' HISTORIC OBJECTS 23202 | CORONA CITY PARK | March 3, 2026 RELOCATED FOUNTAIN - 40'
RELOCATED STEAMENGINE - 374'
RELOCATEDFOUNDER'S ROCK -636'
Docusign Envelope ID: 443808C2-767F-4355-B21F-3E80F536860D

REF.

FEC
FEC

FEC FEC
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FEC FEC FEC FEC FEC FEC FEC FEC FEC FEC EVCS
EVCS EVCS EVCS EVCS EVCS EVCS EVCS EVCS EVCS EVCS EVCS EVCS EVCS EVCS EVCS EVCS 48 40 24 16 24 168 TRI-K.P.1 TRI-K.P.1 K.P.1 0 20 20 20 144 10 K.P.1 K.P.1 K.P.1 1"=40' 0 40' 80' 120' OVERALL SITE PLAN 23202 | CORONA CITY PARK | July 10, 2025 FOUNDERS ROCK SUNKIST ENGINE FIG TREE 4 - HISTORIC FIG TREE TO REMAIN IN PLACE 2- SUNKIST ENGINE 3 - DRINKING FOUNTAIN 1 - FOUNDERS ROCK Historic Site Elements DRINKING FOUNTAIN Docusign Envelope ID: 443808C2-767F-4355-B21F-3E80F536860D

Certificate Of Completion
Envelope Id: 443808C2-767F-4355-B21F-3E80F536860D Status: Completed Subject: Complete with Docusign: 4. Letter - Scope of Work.docx, 7. Historic Objects Relocation.pdf, 7. ...

Source Envelope:

Document Pages: 4 Signatures: 1 Envelope Originator:

Certificate Pages: 2 Initials: 1 Rachel McLure
AutoNav: Enabled
EnvelopeId Stamping: Enabled
Time Zone: (UTC-08:00) Pacific Time (US & Canada)
400 S Vicentia Ave
Corona, CA 92882
[email protected]
IP Address: 64.29.226.10
Record Tracking
Status: Original
3/4/2026 5:50:27 PM
Holder: Rachel McLure
[email protected]
Location: DocuSign
Security Appliance Status: Connected Pool: StateLocal
Storage Appliance Status: Connected Pool: City of Corona, CA Location: Docusign Signer Events Signature Timestamp
Donna Finch
[email protected]
Community Services Director
Security Level: Email, Account Authentication
(None) Signature Adoption: Pre-selected Style
Using IP Address: 104.34.41.63
Sent: 3/4/2026 5:52:04 PM
Viewed: 3/9/2026 8:10:51 AM
Signed: 3/9/2026 8:12:40 AM
Electronic Record and Signature Disclosure:

Not Offered via Docusign
Rachel McLure
[email protected]

CIP SUPERVISOR
City of Corona - CIP Division
Security Level: Email, Account Authentication
(None)
Signature Adoption: Pre-selected Style
Using IP Address: 64.29.226.10
Sent: 3/4/2026 5:52:03 PM
Viewed: 3/4/2026 5:52:10 PM
Signed: 3/4/2026 5:52:19 PM
Electronic Record and Signature Disclosure:

Not Offered via Docusign
In Person Signer Events Signature Timestamp
Editor Delivery Events Status Timestamp
Agent Delivery Events Status Timestamp
Intermediary Delivery Events Status Timestamp
Certified Delivery Events Status Timestamp
Carbon Copy Events Status Timestamp
Witness Events Signature Timestamp
Notary Events Signature Timestamp
Envelope Summary Events Status Timestamps
Envelope Sent Hashed/Encrypted 3/4/2026 5:52:04 PM

Envelope Summary Events Status Timestamps
Certified Delivered Security Checked 3/4/2026 5:52:10 PM Signing Complete Security Checked 3/4/2026 5:52:19 PM
Completed Security Checked 3/9/2026 8:12:40 AM
Payment Events Status Timestamps

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
June 2026 Page i
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

CITY PARK REVIT A LIZATION PROJECT EIR ADDENDUM

CITY OF CORONA
Table of Contents
Page ii PlaceWorks

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

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA
Table of Contents
June 2026 Page iii
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

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA
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

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA
Abbreviations and Acronyms
June 2026 Page v
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

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA
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

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

1. Introduction

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

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

1. Introduction
June 2026 Page 3
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

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

1. Introduction

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.

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

1. Introduction
June 2026 Page 5
 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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June 2026 Page 7

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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2. Environmental Setting

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
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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
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Figure XX - Figure Title Here

1. Introduction

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

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Source: PlaceWorks 2024.

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CITY OF CORONA
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.

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June 2026 Page 19

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.

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0 Scale (Feet)
80 Figure 7 - Community Center and Aquatics Center Site Plan

CITY OF CORONA

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June 2026 Page 25

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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3. Project Description

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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June 2026 Page 27

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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3. Project Description

 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. Environmental Checklist

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.

CITY PARK REVIT A LIZATION PROJECT EIR ADDENDUM

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4. Environmental Checklist
June 2026 Page 33

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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June 2026 Page 35

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

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

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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5. Environmental Analysis
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

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

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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

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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

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

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
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

0.0 0.0

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0.0 0.0

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0.0 0.0
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

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5. Environmental Analysis

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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

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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

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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

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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.

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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.

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis

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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5. Environmental Analysis
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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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5. Environmental Analysis

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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5. Environmental Analysis
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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.

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

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5. Environmental Analysis

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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5. Environmental Analysis
June 2026 Page 53
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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5. Environmental Analysis

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.

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis

 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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June 2026 Page 57
 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

CITY PARK REVITALIZATION PROJECT EIR ADDENDUM

CITY OF CORONA

5. Environmental Analysis