PENINSULA WATERSHED MANAGEMENT PLAN Final Environmental Impact Report

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PENINSULA WATERSHED MANAGEMENT PLAN Final Environmental Impact Report San Francisco Planning Department PENINSULA WATERSHED MANAGEMENT PLAN Final Environmental Impact Report San Francisco Planning Department File No. 96.222E State Clearinghouse No. 98082030 Draft EIR Publication Date: December 18, 1999 Draft EIR Public Hearing Date: February 1, 2000 (in San Mateo) and February 3, 2000 (in San Francisco) Draft EIR Public Comment Period: December 18, 1999 through February 18, 2000 EIR Certification Date: January 11, 2001 This report has been printed on post-consumer recycled paper San Francisco Planning Department PENINSULA WATERSHED MANAGEMENT PLAN Final Environmental Impact Report San Francisco Planning Department File No. 96.222E State Clearinghouse No. 98082030 Draft EIR Publication Date: December 18, 1999 Draft EIR Public Hearing Date: February 1, 2000 (in San Mateo) and February 3, 2000 (in San Francisco) Draft EIR Public Comment Period: December 18, 1999 through February 18, 2000 EIR Certification Date: January 11, 2001 Changes from the text of the Draft EIR are indicated by a dot ( ) This report has been printed on post-consumer recycled paper 225 Bush Street 315 Washington Street 700 University Avenue 4221 Wilshire Boulevard Suite 1700 Suite 102 Suite 130 Suite 480 San Francisco, Oakland, Sacramento, Los Angeles, California California California California 94104 94607 95825 90010 (415) 896-5900 (510) 839-5066 (916) 564-4500 (213) 933-6111 930385 TABLE OF CONTENTS PENINSULA WATERSHED MANAGEMENT PLAN EIR Page I. SUMMARY I-1 A. Management Plan Description I-1 B. Fifield/Cahill Ridge Trail (Project-Level Analysis) I-3 C. Principal Environmental Effects I-3 D. Mitigation Measures I-11 E. Management Plan Alternatives I-13 F. Unresolved Issues and Areas of Controversy I-13 II. PROJECT DESCRIPTION II-1 A. Peninsula Watershed Management Plan II-1 B. Management Plan Summary II-10 C. Related Projects and Studies II-21 D. Approach and Organization of the EIR II-21 E. Environmental Review Process II-23 III. PROGRAM-LEVEL ENVIRONMENTAL SETTING AND IMPACTS III.A-1 A. Existing Plans and Policies III.A-1 B. Land Use III.B-1 C. Geology and Soils III.C-1 D. Hydrology and Water Quality III.D-1 E. Natural Resources III.E-1 F. Air Quality III.F-1 G. Fire Management III.G-1 H. Cultural Resources III.H-1 I. Aesthetics III.I-1 J. Transportation and Access III.J-1 K. Utilities and Public Services III.K-1 L. Noise III.L-1 M. Hazardous Materials and Hazardous Waste III.M-1 N. Energy III.N-1 O. Growth Inducement III.O-1 P. Cumulative Analysis III.P-1 IV. PROGRAM-LEVEL MITIGATION MEASURES IV-1 A. Existing Plans and Policies IV-1 B. Land Use IV-1 C. Geology and Soils IV-1 D. Hydrology and Water Quality IV-2 E. Natural Resources IV-2 F. Air Quality IV-3 NOP 96.222E: Peninsula Watershed Management Plan ii ESA / 930385 February 2001 TABLE OF CONTENTS Page IV. MITIGATION MEASURES (Continued) G. Fire Management IV-3 H. Cultural Resources IV-3 I. Aesthetics IV-4 J. Transportation and Access IV-4 K. Utilities and Public Services IV-5 L. Noise IV-5 M. Hazardous Materials and Hazardous Waste IV-5 N. Energy IV-6 O. Growth Inducement IV-6 V. FIFIELD/CAHILL RIDGE TRAIL PROJECT DESCRIPTION, ENVIRONMENTAL SETTING, AND IMPACTS V-1 A. Existing Plans and Policies V-10 B. Land Use V-11 C. Geology and Soils V-12 D. Hydrology and Water Quality V-14 E. Natural Resources V-17 F. Air Quality V-30 G. Fire Management V-32 H. Cultural Resources V-34 I. Aesthetics V-36 J. Transportation and Access V-38 K. Utilities and Public Services V-41 L. Noise V-42 M. Hazardous Materials and Hazardous Waste V-43 N. Energy V-45 VI. FIFIELD/CAHILL RIDGE TRAIL MITIGATION MEASURES VI-1 A. Existing Plans and Policies VI-1 B. Land Use VI-1 C. Geology and Soils VI-1 D. Hydrology and Water Quality VI-1 E. Natural Resources VI-2 F. Air Quality VI-4 G. Fire Management VI-5 H. Cultural Resources VI-5 I. Aesthetics VI-5 J. Transportation and Access VI-5 K. Utilities and Public Services VI-6 L. Noise VI-6 M. Hazardous Materials and Hazardous Waste VI-6 N. Energy VI-7 VII. SIGNIFICANT UNAVOIDABLE ENVIRONMENTAL EFFECTS VII-1 VIII. SIGNIFICANT IRREVERSIBLE ENVIRONMENTAL CHANGES VIII-1 NOP 96.222E: Peninsula Watershed Management Plan iii ESA / 930385 February 2001 TABLE OF CONTENTS Page IX. WATERSHED MANAGEMENT ALTERNATIVES IX-1 A. Methodology IX-1 B. No Action Alternative IX-2 C. Management Plan Alternative A: Ecological Resource Enhancement IX-6 D. Management Plan Alternative B: Ecological Resource/Access IX-16 E. Management Plan Alternative C: Increased Activities IX-17 X. DRAFT EIR DISTRIBUTION LIST X-1 XI. APPENDICES XI-1 A. Notice of Preparation XI.A-1 B. Special-Status Species Tables IX.B-1 XII. LIST OF ACRONYMS XII-1 XIII. EIR AUTHORS AND CONSULTANTS; ORGANIZATIONS AND PERSONS CONSULTED XIII-1 • XIV. SUMMARY OF COMMENTS AND RESPONSES XIV-1 A. Programmatic Nature of the Draft Peninsula Watershed Management Plan XIV-2 B. Jurisdictional Issues XIV-3 C. Commitment to Mitigating Actions/Mitigation Requirements XIV-6 D. General Fifield/Cahill Ridge Trail Issues XIV-9 E. Fifield/Cahill Ridge Trail Mitigation Requirements XIV-12 LIST OF FIGURES II-1 Overall SFPUC Water System II-4 II-2 Project Location II-6 II-3 Peninsula Watershed, Schematic Base II-7 II-4 Peninsula Watershed, Topographic Base II-8 III.B-1 Peninsula Watershed Adjacent Land Uses III.B-2 III.B-2 Existing and Potential Recreational Use in the Peninsula Watershed Area III.B-4 III.C-1 Principal Active Regional Faults of the San Francisco Bay Area III.C-5 III.D-1 Peninsula Watershed Facilities and System III.D-2 III.E-1 Marbled Murrelet Critical Habitat III.E-22 III.G-1 Peninsula Watershed Wildfire Severity III.G-3 III.I-1 Key Views and Features of Interest III.I-2 V-1 Alternative Fifield/Cahill Ridge Trail Alignments V-3 LIST OF TABLES II-1 Summary of Peninsula Watershed Management Actions II-26 III.C-1 Faults in the Vicinity of the Peninsula Watershed III.C-4 III.C-2 Management Actions That Could Result in Significant Physical Effects Through Increased in Soil Erosion III.C-9 NOP 96.222E: Peninsula Watershed Management Plan iv ESA / 930385 February 2001 TABLE OF CONTENTS Page III.C-3 Management Actions That Could Result in Significant Physical Effects Due to Reduced Slope Stability III.C-12 III.D-1 Summary of Management Policies Related to Water Quality Protection III.D-7 III.D-2 Summary of Potentially Significant Water Quality Impacts Due to Increased Public Access and Use III.D-12 III.D-3 Summary of Potentially Significant Water Quality Impacts Due to Development Of New Facilities III.D-15 NOP 96.222E: Peninsula Watershed Management Plan iva • ESA / 930385 February 2001 TABLE OF CONTENTS Page LIST OF TABLES (Continued) III.D-4 Summary of Potentially Significant Water Quality Impacts Due to Watershed Operations And Maintenance Activities III.D-19 III.D-5 Management Actions That Could Result in Significant Physical Effects Due to Build-Up of Sediments III.D-23 III.E-1 Special-Status Plant Species Reported or Potentially Occurring in the Peninsula Watershed III.E-7 III.E-2 Peninsula Watershed Wildlife Habitats III.E-12 III.E-3 Special-Status Animal Species Reported or Potentially Occurring in the Peninsula Watershed III.E-17 III.E-4 Management Actions That Could Result in Significant Physical Effects to Natural Resources From the Removal of Non-Native Forests III.E-25 III.E-5 Management Actions That Could Result in Significant Physical Effects to Natural Resources from Construction Activities III.E-28 III.E.6 Management Actions That Could Result in Significant Physical Effects to Natural Resources from an Increase in Public Access and Use III.E-32 III.F-1 State and National Ambient Air Quality Standards III.F-2 III.F-2 Redwood City Air Pollutant Summary (1993-1997) III.F-5 III.F-3 Management Actions That Could Result in Significant Physical Effects to Air Quality Through Construction Activities III.F-10 III.G-1 Management Actions That Could Result in Significant Physical Effects to Fire Management Due to Road Closures and Alterations III.G-10 III.G-2 Management Actions That Could Result in Significant Physical Effects to Fire Management From Increased Public Access and Use III.G-12 III.G-3 Management Actions That Could Result in Significant Physical Effects from Use of Prescribed Burns III.G-14 III.H-1 Known Cultural Resources of the Peninsula Watershed III.H-4 III.H-2 Management Actions That Could Result in Significant Physical Effects to Cultural Resources Due to Increased Public Access and Use III.H-9 III.H-3 Management Actions That Could Result in Significant Physical Effects to Cultural Resources From Operations, Maintenance, and Construction Activities III.H-12 III.I-1 Management Actions That Could Result in Significant Physical Effects to Aesthetic Quality Through Installation of New Facilities III.I-10 III.I-2 Management Actions That Could Result in Significant Physical Effects to Aesthetic Resources Through Vegetation-clearing Activities III.I-14 III.I-3 Management Actions That Could Result in Significant Physical Effects to Aesthetic Resources Through Increased Public Access and Use III.I-16 III.J-1 Management Actions That Could Result in Significant Physical Effects to Traffic and Access Through Operation of a Watershed Visitor Education Center III.J-4 III.M-1 Management Actions That Could Result in Significant Physical Effects Through Construction-related Exposure to Hazardous Materials III.M-5 V-1 Summary of Fifield/Cahill Ridge Trail Alternatives V-4 V-2 Potential Impacts of Trail Plan Alternatives by Resource Area V-8 NOP 96.222E: Peninsula Watershed Management Plan v ESA / 930385 February 2001 TABLE OF CONTENTS Page LIST OF TABLES (Continued) V-3 Natural Plant Communities Within Fifield/Cahill Ridge Area V-19 V-4 Special Status Animal Species Reported or Potentially Occurring in the Project Area V-21 IX-1 Comparative Description of Peninsula Watershed Management Plan Alternatives IX-3 IX-2 Comparison of Peninsula Watershed Management Plan Alternatives Impacts IX-7 NOP 96.222E: Peninsula Watershed Management Plan vi ESA / 930385 February 2001 CHAPTER I SUMMARY This Environmental Impact Report (EIR) analyzes the physical environmental effects of the Peninsula Watershed Management Plan (Management Plan)1 developed by the San Francisco Public Utilities Commission (SFPUC).
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