Environmental Documents
The California Environmental Quality Act (CEQA) requires public agencies to consider the potential environmental effects of proposed activities and to prevent significant, avoidable environmental damage. The process includes involving the public and other agencies in the environmental review process.
When a new development or project is proposed in the City of Ontario, the City uses the CEQA process to understand how the proposal may impact the environment. The process includes opportunities for the public to provide input and ask questions.
Find notices to prepare a new EIR (Environmental Impact Report) below, and you can also view current draft EIRs and adopted EIRs.
Projects:
Notice of Preparation of a Draft Subsequent Environmental Impact Report for the Roadhouse Energy Project
FILE NO’s: PSPA26-005, PDA-24-003, PDEV24-015, PCUP24-016, PTUP26-041 and SEIR for the Rich Haven Specific Plan
City of Ontario Planning Department
Lorena Mejia, Senior Planner
303 East B Street, Ontario, CA 91764
Email: lmejia@ontarioca.gov
Telephone: (909) 395-2276
The Ontario Plan (TOP) 2050 Policy Plan Amendment and Eucalyptus Business Park Specific Plan. (File Nos. PGPA25-002 and PSP24-003) Draft Supplemental Environmental Impact Report
Draft Supplemental Environmental Impact Report
The City of Ontario has prepared a Draft Supplemental Environmental Impact Report (DSEIR) for the proposed Ontario Plan (TOP) 2050 Policy Plan Amendment and the Eucalyptus Business Park Specific Plan. The DSEIR evaluates proposed amendments to the City’s Policy Plan that would modify the land use pattern across more than 1,300 acres in the southern portion of the City and support development of the Eucalyptus Business Park Specific Plan. The DSEIR evaluates the Policy Plan Amendment at a program level, with project-level environmental analysis for the Eucalyptus Business Park Specific Plan.
The EBPSP would allow development of approximately 2.9 million square feet of business park uses on about 137.9 acres, along with approximately 36 acres of open space and parkland and roadway improvements. The project site is generally located in the southwest portion of the City of Ontario and is bounded by Eucalyptus Avenue to the south, Walker Avenue to the east, and Campus Avenue to the west.
The DSEIR will evaluate potential environmental impacts across relevant CEQA topics, including but not limited to aesthetics, air quality, biological and cultural resources, greenhouse gas emissions, hydrology, noise, transportation, and wildfire risk.
The 45-day public comment period will begin on March 5, 2026, and end on April 20, 2026.
Notice of Availability (NOA) - English
Notice of Availability (NOA) - Spanish
Ontario Policy Plan Amendment Draft Supplemental Environmental Impact Report
APPENDIX A: NOTICE OF PREPARATION
APPENDIX B: TOP 2050 Policy Matrix
APPENDIX C1: TOP AQ, ENERGY, AND GHG MODELING
APPENDIX C2: TOP TRUCK ROUTE HRA
APPENDIX C5: EBPSP ENERGY STUDY
APPENDIX D: EBPSP Biological Resources Report
APPENDIX E1: SCICC RECORDS SEARCH
APPENDIX E2a: ONTARIO RANCH HISTORIC SURVEY
APPENDIX E2b: ONTARIO RANCH HISTORIC SURVEY SCHAEFER
APPENDIX E3: EBPSP CULTURAL RESOURCES
APPENDIX F1: EBPSP GEOTECHNICAL STUDY -NWC
APPENDIX F2: EBPSP GEOTECHNICAL STUDY -NEC
APPENDIX F3: EBPSP PALEONTOLOGICAL RESOURCES
APPENDIX G2: EBPSP PHASE II (1A)
APPENDIX G3: EBPSP PHASE II (1B)
APPENDIX G4: EBPSP PHASE II (2A)
APPENDIX G5: EBPSP PHASE II (2B)
APPENDIX G6: ALUCP CONSISTENCY DETERMINATION ANALYSIS
APPENDIX H1: EBPSP PRELIMINARY HYDROLOGY
APPENDIX L1: TOP WATER SUPPLY EVALUATION
APPENDIX L2: EBPSP WATER SUPPLY ASSESSMENT
APPENDIX L3: EBPSP SEWER AND WATER INFRASTRUCTURE
APPENDIX M1: NAHC RECORDS REQUEST
APPENDIX M2: TRIBAL CONSULTATION LETTERS
APPENDIX N: EBPSP ALTERNATIVES ANALYSIS
POLICY PLAN AMENDMENT PUBLIC REVIEW DRAFT
Eucalyptus Business Park Specific Plan
HOUSING ELEMENT TECHNICAL REPORT AMENDMENTS
Final Supplemental Environmental Impact Report
The City of Ontario has prepared a Final Supplemental Environmental Impact Report (Final SEIR) for the proposed Ontario Plan (TOP) 2050 Policy Plan Amendment and the Eucalyptus Business Park Specific Plan. The Final SEIR includes comments on the DSEIR, responses to those comments, and minor revisions to the DSEIR in response to comments.
Ontario Policy Plan Amendment Final SEIR
Appendix A – SEIR Comment Letters
Appendix B – Revised Draft SEIR Figures
Appendix C – Buildout Methodology
Appendix D – Friant Ranch Whitepaper and Co-Benefits Risk Assessment (CoBRA)
PPA only Hearing Draft (dated 2026-06-02)
Housing Element Technical Report Hearing Draft
Final Focused Environmental Impact Report for the proposed Center Park Specific Plan
The City of Ontario has prepared a Final Focused Environmental Impact Report for the proposed Center Park Specific Plan, which will allow for a residential and mixed-use development across 29 parcels covering approximately 258 acres across the southwest area of the City, known as Ontario Ranch. The project site is generally bounded by Campus Avenue to the west, Walker Avenue to the east, the Southern California Edison Easement roughly 330 feet to the north of Edison Avenue, and a southern project boundary roughly ¼ mile north of Eucalyptus Avenue.
The Final Focused EIR addresses Biological Resources and Cultural Resources, specifically Historic Resources. The Final Focused EIR will be considered for adoption by the City Council at the March 17, 2026 hearing. For any questions on the Final Focused EIR, you may contact Rafael Torres at 909-395-2979 or by email at rtorres@ontarioca.gov.