TABLE OF CONTENTS

List of Tables List of Figures List of Appendices

1.0 EXECUTIVE SUMMARY

1.1 INTRODUCTION AND SUMMARY OF ENVIRONMENTAL REVIEW STATUS

1.2 SUMMARY OF PROJECT REFINEMENTS AND IMPROVEMENTS

1.2.1 Overview

1.2.2 San Francisco HWC (Mitigated) Site

1.2.3 Pittsburg West Tenth Street Site

1.2.4 Submarine Cable

1.3 SUMMARY OF POTENTIALLY SIGNIFICANT IMPACT FINDINGS

2.0 PROJECT DESCRIPTION

2.1 INTRODUCTION

2.2 PROJECT OBJECTIVES

2.3 HVDC PLUS TECHNOLOGY/CONVERTER STATIONS

2.3.1 Overview

2.3.2 Converter Station Components

2.4 SUBMARINE CABLE DESIGN AND INSTALLATION

2.5 SAN FRANCISCO CONVERTER STATION

2.6 PITTSBURG CONVERTER STATION

3.0 ENVIRONMENTAL REVIEW

3.1 INTRODUCTION

3.2 AIR QUALITY

3.3 GEOLOGIC RESOURCES AND SOILS

3.4 WATER RESOURCES AND QUALITY

3.5 TERRESTRIAL BIOLOGY

3.6 MARINE BIOLOGICAL RESOURCES

3.7 CULTURAL RESOURCES

3.7.1 Introduction

3.7.2 San Francisco HWC (Mitigated) Converter Station Site

3.8 LAND USE AND RECREATION

3.8.1 San Francisco Converter Station

3.8.2 Pittsburg Converter Station

3.9 MARINE TRANSPORTATION AND COMMERCIAL FISHING

3.10 TRAFFIC AND TRANSPORTATION

3.11 NOISE AND VIBRATION

3.11.1 San Francisco Converter Station

3.11.2 Pittsburg Converter Station

3.12 PUBLIC SERVICES AND UTILITIES

3.13 VISUAL RESOURCES/AESTHETICS

3.13.1 Introduction

3.13.2 San Francisco Converter Station

3.13.3 Pittsburg Converter Station

3.14 HAZARDOUS MATERIALS AND WASTE MANAGEMENT

3.14.1 San Francisco Converter Station

3.14.2 Pittsburg Converter Station Site

3.15 PALEONTOLOGICAL RESOURCES

3.16 SUMMARY AND CONCLUSION

3.16.1 Unavoidable Adverse Significant Impacts

List of Tables

Table 1-1 Summary of Potentially Significant Environmental Impacts and Proposed Mitigation Measures

Table 3.11.1-1 Calculated Sound Levels from the Construction of the San Francisco HWC (Mitigated) Converter Station Utilizing HVDC PLUS Design

Table 3.11.1-2 Calculated Sound Levels from Operation of the San Francisco HWC (Mitigated) Converter Station Utilizing the HVDC PLUS Design

Table 3.11.2-1 Calculated Sound Levels from Construction of the Pittsburg West Tenth Street Alternative 1 Converter Station Site (As Modified) Utilizing HVDC PLUS Design

Table 3.11.2-2 Calculated Sound Levels from Operation of the Pittsburg West Tenth Street Alternative 1 Converter Station Site (As Modified) Utilizing HVDC PLUS Design

List of Figures

Figure 1-1 General Location Map

Figure 2.4-1 Typical Configuration for Submarine Cable (HVDC PLUS)

Figure 2.5-1 San Francisco Converter Station Site (HWC [Mitigated] HVDC PLUS)

Figure 2.5-2 San Francisco Converter Station Plan View (HWC [Mitigated] HVDC PLUS)

Figure 2.5-3 San Francisco Converter Station Elevation View (HWC [Mitigated] HVDC PLUS)

Figure 2.5-4 Photosimulation of San Francisco Converter Station (HWC [Mitigated] HVDC PLUS – View from 23rd and Illinois Streets)

Figure 2.5-5 Photosimulation of San Francisco Converter Station (HWC [Mitigated] HVDC PLUS – View from Potrero Hill)

Figure 2.5-6 Photosimulation of San Francisco Converter Station (HWC [Mitigated] HVDC PLUS – View from Warm Water Cove Park)

Figure 2.5-7 Photosimulation of San Francisco Converter Station (HWC [Mitigated] HVDC PLUS – View from 24th and Illinois Streets)

Figure 2.6-1 Pittsburg Converter Station Site (West Tenth Street HVDC PLUS)

Figure 2.6-2 Pittsburg Converter Station Plan View (West Tenth Street HVDC PLUS)

Figure 2.6-3 Pittsburg Converter Station Elevation View (West Tenth Street HVDC PLUS)

Figure 2.6-4 Photosimulation of Pittsburg Converter Station (West Tenth Street HVDC PLUS – View from West Tenth Street with Landscaped Buffer)

Figure 2.6-5 Photosimulation of Pittsburg Converter Station (West Tenth Street HVDC PLUS – View from West Tenth Street without Landscaped Buffer)

Figure 3.13.2-1 KOP SF-1 Photos A/B

Figure 3.13.2-2 KOP SF-2 Photos A/B

Figure 3.13.2-3 KOP SF-3 Photos A/B

Figure 3.13.2-4 KOP SF-5 Photos A/B

Figure 4.A.13-4 KOP SF-5 Photos A/B

Figure 3.13.3-1 KOP P-3 Photos A/B West Tenth Street HVDC PLUS With Landscaped Buffer

Figure 3.13.3-2 KOP P-3 Photos A/B West Tenth Street HVDC PLUS Without Landscaped Buffer

Figure 5.4-2 KOP P-3 Photos A/B West Tenth Street Alternative 1

Appendices

Appendix A Noise Studies