DRAFT Ashley Way Logistics Center Project Initial Study/Mitigated Negative Declaration City of Colton, San Bernardino County, California Prepared for: City of Colton Development Services 659 North La Cadena Drive Colton, CA 92324 Contact: Steve Gonzalez, Associate Planner Prepared by: FirstCarbon Solutions 650 E. Hospitality Lane, Suite 125 San Bernardino, CA 92408 925.357.2562 Contact: Frank Coyle, Project Director Charles Holcombe, Senior Project Manager Vanessa Welsh, Project Manager Report Date: March 22, 2019 NORTH AMERICA | EUROPE | AFRICA | AUSTRALIA | ASIA WWW.FIRSTCARBONSOLUTIONS.COM THIS PAGE INTENTIONALLY LEFT BLANK City of Colton—Ashley Way Logistics Center Project Initial Study/Mitigated Negative Declaration Table of Contents Table of Contents Acronyms and Abbreviations ........................................................................................................ vii Section 1: Introduction .................................................................................................................. 1 1.1 - Purpose.............................................................................................................................. 1 1.2 - Project Location ................................................................................................................. 1 1.3 - Environmental Setting ....................................................................................................... 1 1.4 - Project Description ............................................................................................................ 2 1.5 - Required Discretionary Approvals ..................................................................................... 2 1.6 - Intended Uses of this Document ....................................................................................... 3 Section 2: Environmental Checklist and Environmental Evaluation ............................................... 13 1. Aesthetics ................................................................................................................... 14 2. Agriculture and Forestry Resources ........................................................................... 21 3. Air Quality ................................................................................................................... 24 4. Biological Resources ................................................................................................... 46 5. Cultural Resources and Tribal Cultural Resources ...................................................... 50 6. Geology and Soils ....................................................................................................... 55 7. Greenhouse Gas Emissions and Energy...................................................................... 65 8. Hazards and Hazardous Materials .............................................................................. 82 9. Hydrology and Water Quality ..................................................................................... 87 10. Land Use and Planning ............................................................................................... 95 11. Mineral Resources ...................................................................................................... 97 12. Noise ........................................................................................................................... 98 13. Population and Housing ........................................................................................... 110 14. Public Services .......................................................................................................... 113 15. Recreation ................................................................................................................ 117 16. Transportation/Traffic ............................................................................................... 119 17. Utilities and Service Systems .................................................................................... 125 18. Wildfire ..................................................................................................................... 132 19. Mandatory Findings of Significance ......................................................................... 134 Section 3: References ................................................................................................................. 141 Section 4: List of Preparers ......................................................................................................... 143 Appendix A: Air Quality and Greenhouse Gas Analysis Appendix B: Biological Resources Assessment Appendix C: Cultural Resources Assessment Appendix D: Preliminary Geotechnical Evaluation Appendix E: Phase I ESA Appendix F: Hydrology Supporting Information F.1 - Preliminary Drainage Study F.2 - Preliminary Water Quality Management Plan Appendix G: Noise Impact Analysis FirstCarbon Solutions iii Y:\Publications\Client (PN-JN)\0237\02370026\ISMND\02370026 Colton - Ashley Way ISMND.docx City of Colton—Ashley Way Logistics Center Project Table of Contents Initial Study/Mitigated Negative Declaration Appendix H: Traffic Impact Analysis and Response to Comments Memo H.1 - Traffic Impact Analysis H.2 - Response to Comments Memo List of Tables Table 1: SCAQMD Regional Thresholds of Significance ......................................................................... 26 Table 2: SCAQMD Local Air Quality Thresholds of Significance ............................................................ 27 Table 3: Conceptual Construction Schedule ......................................................................................... 32 Table 4: Regional Construction Emissions by Construction Activity (Unmitigated) .............................. 33 Table 5: Regional Construction Emissions by Construction Activity (Mitigated) .................................. 33 Table 6: Operational Regional Pollutants .............................................................................................. 35 Table 7: Construction Localized Significance Analysis—Unmitigated ................................................... 36 Table 8: Operational Localized Significance Analysis—Unmitigated ..................................................... 37 Table 9: Project DPM Construction Emissions—Unmitigated ............................................................... 39 Table 10: Estimated Health Risks and Hazards During Project Construction—Unmitigated ................ 40 Table 11: Vehicle Trip Generation During Operations ........................................................................... 40 Table 12: Vehicle Type Classification ..................................................................................................... 41 Table 13: Exposure Assumptions for Cancer Risk.................................................................................. 42 Table 14: Summary of Health Risk Impacts Year 2019-2050 ................................................................. 42 Table 15: Screening Levels for Potential Odor Sources ......................................................................... 44 Table 16: Estimated Construction-Related GHG Emissions ................................................................... 69 Table 17: Operational Greenhouse Gas Emissions ................................................................................ 71 Table 18: Scoping Plan Measures Consistency Analysis ........................................................................ 72 Table 19: Consistency with SB 32 2017 Scoping Plan Update ............................................................... 75 Table 20: Traffic Noise Increase Summary .......................................................................................... 106 Table 21: Federal Transit Administration Construction Vibration Impact Criteria .............................. 107 Table 22: Past and Future Water Demands ......................................................................................... 128 Table 23: Past and Future Water Supplied .......................................................................................... 128 List of Exhibits Exhibit 1: Regional Location Map ............................................................................................................ 5 Exhibit 2: Local Vicinity Map, Aerial Base ............................................................................................... 7 Exhibit 3: Planned Land Use .................................................................................................................... 9 iv FirstCarbon Solutions Y:\Publications\Client (PN-JN)\0237\02370026\ISMND\02370026 Colton - Ashley Way ISMND.docx City of Colton—Ashley Way Logistics Center Project Initial Study/Mitigated Negative Declaration Table of Contents Exhibit 4: Proposed Site Plan ................................................................................................................ 11 Exhibit 5: Proposed Site Plan Elevation ................................................................................................ 17 Exhibit 6: Geologic Hazards (Alquist-Priolo Earthquake Fault Zones) .................................................. 59 Exhibit 7: Soils Map .............................................................................................................................. 61 Exhibit 8: Potentially Jurisdictional Waters .........................................................................................