Draft EIR County of San Luis Obispo Los Osos Wastewater Project State Clearinghouse No
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Draft EIR County of San Luis Obispo Los Osos Wastewater Project State Clearinghouse No. 2007121034 Prepared for: San Luis Obispo County Dept of Public Works County Government Center, Room 207 San Luis Obispo, CA 93408 Mark Hutchinson, Environmental Program Manager Prepared by: Michael Brandman Associates 220 Commerce, Suite 200 Irvine, CA 92602 714.508.4100 November 14, 2008 County of San Luis Obispo Los Osos Wastewater Project Draft EIR Table of Contents TABLE OF CONTENTS Acronyms and Abbreviations .............................................................................................ix Section 1: Introduction......................................................................................................1-1 1.1 - Purpose of the EIR...........................................................................................1-1 1.2 - Project History..................................................................................................1-3 1.3 - Scope and Content of This EIR......................................................................1-10 1.4 - Components of This EIR Analysis..................................................................1-13 1.5 - Lead Agency and Contact Persons................................................................1-16 1.6 - Incorporation by Reference............................................................................1-16 1.7 - Review of the Draft EIR..................................................................................1-16 Section 2: Executive Summary.........................................................................................2-1 2.1 - Executive Summary Contents..........................................................................2-1 2.2 - LOWWP EIR ....................................................................................................2-2 2.3 - Project Alternatives ..........................................................................................2-8 2.4 - Project Components.........................................................................................2-9 2.5 - Project Phasing and Scheduling ....................................................................2-22 2.6 - Project Funding Sources................................................................................2-22 2.7 - Discretionary Actions and Permits Required..................................................2-24 2.8 - Summary of Environmental Impacts and Mitigation Measures ......................2-25 Section 3: Project Description..........................................................................................3-1 3.1 - Project Objectives ............................................................................................3-1 3.2 - Project Location ...............................................................................................3-9 3.3 - Project Characteristics ...................................................................................3-19 3.4 - Intended Uses of This Draft EIR ....................................................................3-67 Section 4: Environmental Setting.....................................................................................4-1 4.1 - Introduction ......................................................................................................4-1 4.2 - Regional and local Setting ...............................................................................4-1 4.3 - Cumulative Environmental Setting .................................................................4-11 Section 5: Project and Cumulative Impacts ....................................................................5-1 Organization of This Section ....................................................................................5-1 How to Read and Understand This Draft EIR ..........................................................5-1 5.1 - Land Use and Planning.................................................................................5.1-1 5.2 - Groundwater Resources ...............................................................................5.2-1 5.3 - Drainage and Surface Water Quality ............................................................5.3-1 5.4 - Geology.........................................................................................................5.4-1 5.5 - Biological Resources.....................................................................................5.5-1 5.6 - Cultural Resources........................................................................................5.6-1 5.7 - Public Health and Safety...............................................................................5.7-1 5.8 - Traffic and Circulation ...................................................................................5.8-1 5.9 - Air Quality......................................................................................................5.9-1 5.10 - Noise.........................................................................................................5.10-1 5.11 - Agricultural Resources ..............................................................................5.11-1 5.12 - Visual Resources ......................................................................................5.12-1 5.13 - Environmental Justice...............................................................................5.13-1 Michael Brandman Associates iii H:\Client (PN-JN)\0224\02240002\DEIR\1 Sections\02240002_DEIR Sec00-01 Table of Contents.doc County of San Luis Obispo Table of Contents Los Osos Wastewater Project Draft EIR Section 6: Growth Inducing Impacts................................................................................6-1 Section 7: Alternatives to the Proposed Project.............................................................7-1 7.1 - CEQA Requirements for Alternatives ..............................................................7-1 7.2 - Steps in the Alternatives Screening Process ...................................................7-2 7.3 - Project Alternatives ........................................................................................7-19 7.4 - Environmentally Superior Alternative.............................................................7-67 Section 8: Other CEQA Considerations...........................................................................8-1 8.1 - Significant Unavoidable Adverse Environmental Impacts................................8-1 8.2 - Significant Irreversible Environmental Changes ..............................................8-1 8.3 - Effects Found Not To Be Significant ................................................................8-2 Section 9: Organizations and Persons Consulted..........................................................9-1 9.1 - Public Agencies ...............................................................................................9-1 9.2 - Private Agencies ..............................................................................................9-1 9.3 - Other ................................................................................................................9-2 Section 10: Report Preparation Personnel....................................................................10-1 10.1 - Environmental Impact Report ......................................................................10-1 10.2 - Consultants ..................................................................................................10-1 Section 11: References ...................................................................................................11-1 iv Michael Brandman Associates H:\Client (PN-JN)\0224\02240002\DEIR\1 Sections\02240002_DEIR Sec00-01 Table of Contents.doc County of San Luis Obispo Los Osos Wastewater Project Draft EIR Table of Contents APPENDICES Appendix A: Notice of Preparation (NOP), Supplemental Notice of Preparation (SNOP), and Comment Letters A-1: Notice of Preparation A-2: Supplemental Notice of Preparation and Comments/Responses Appendix B: Project Description Data B-1: Proposed Projects Descriptions Appendix C: Land Use and Planning Information C-1: Expanded Land Use Analysis C-2: San Luis Obispo County GIS Interactive Mapping, Land Use Designations Appendix D: Groundwater Quality Resources D-1: Expanded Groundwater Resources Analysis D-2: Hydrogeological Impacts Study Appendix E: Drainage and Surface Water Quality E-1: Expanded Drainage and Surface Water Quality Analysis Appendix F: Geology F-1: Expanded Geology Analysis F-2: Preliminary Geotechnical Report Appendix G: Biological Resources G-1: Expanded Biological Resources Analysis G-2: Biological Resources Assessment G-3: California Natural Diversity Data G-4: California Native Plant Society Inventory of Rare and Endangered Plants G-5: Consortium of California Herbaria Data G-6: Calflora Observation Library and Mapviewer Data Appendix H: Cultural Resources H-1: Expanded Cultural Resources Analysis H-2: Archaeological Survey Report H-3: Historical Resources Inventory and Evaluation Report Appendix I: Public Health and Safety I-1: Expanded Public Health and Safety Analysis I-2: Environmental FirstSearch Report Appendix J: Traffic and Circulation J-1: Expanded Traffic and Circulation Analysis J-2: Traffic and Circulation Study Appendix K: Air Quality K-1: Expanded Air Quality Analysis K-2: Air Quality and Climate Change Calculations K-3: Personal Communication with San Luis Obispo County Air Pollution Control District K-4: E-Mail Communication