Draft Environmental Impact Reports
The City of Ontario prepares a Draft Environmental Impact Report (DEIR) for proposed developments and projects, in accordance with the California Environmental Quality Act (CEQA). The DEIR examines a project's potential impacts on the environment, and includes opportunities for the public to provide input and ask questions.
Projects:
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
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