EIR: 02 Table of Contents eEXECUTIVE SUMMARY TABLE OF CONTENTS ti
1.0 INTRODUCTION AND ENVIRONMENTAL SETTING 1-1
2.0 PURPOSE AND NEED 2-1
3.0 ALTERNATIVES 3-1
3.1 Alternative 1 - Nearshore dike 3-1
3.2 Alternative la - Nearshore dike w/dredging 3-3
3.3 Alternative 2 - Offshore dike (Proposed Action) 3-3
3.4 Alternative 2a - Offshore dike widredging 3-4
3.5 No Action Alternative 3-4
3.6 Alternatives Considered but Eliminated from Further Analysis 3-4
3.7 Environmentally Superior Alternative 3-c
4.0 AFFECTED ENVIRONMENT 4-1
4.1 INTRODUCTION 4-1
4.2 Physical Environment 4-1
4.2.1 Geology & Marine Sediment 4-1
4.2.2 Marine Currents and Tides 4-2
4.2.3 Air Quality and Climate 4-4
4.2.4 Water Resources and Water Quality 4-11
4.3 Biological Resources 4-13
4.3.1 Coastal Zone Resources 4-13
4.3.1.1 Coastal Vegetation 4-13
4.3.2.2 Coastal Wildlife 4-13
4.3.2 Marine Biological Resources 4-14
4.3.2.1 Marine Vegetation 4-16
4.3.2.2 Marine Invertebrate Animals 4-17
4.3.2.3 Marine Fishes 4-18
4.3.2.3 Essential Fish Habitat 4-20
4.3.3 Threatened and Endangered Species 4-21
4.4 Land Use 4-24
4.5 Aesthetics 4-26
4.6 Sediment Chemical Contamination 4-26
4.6.1 Offshore Contamination 4-26
4.6.2 Nearshore Contamination 4-28
4.7 Cultural Resources 4-29
4.7.1 Ethnography 4-29
4.7.2 Prehistory 4-29
4.7.3 History 4-30
4.7.2 Archeological Sites 4-30
4.7.2 Historic Sites 4-31
5.0 ENVIRONMENTAL IMPACTS 5-1
5.1 INTRODUCTION 5-1
5.1,1 General Impacts Common to Both Action Alternatives 5-1
5.1.2 Without Project (i.e., No Action) Condition Assumptions 5-7
5.2 Physical Environment 5-7
5.2.1 Geology 5-7
5.2.2 Marine Currents and Tides 5-8
5.2.3 Air Quality and Climate 5-8
5.2.4 Water Resources and Water Quality 5-10
5.3 Biological Resources 5-i i
5.3.1 Coastal Zone Resources 5-11
5.3.1.1 Impacts and Mitigation Measures 5-11
5.3.2 Marine Biological Resources 5-12
5.3.2.1 Vegetation - Impacts and Mitigation Measures 5-12
5.3.2.2 Invertebrate Animals - Impacts and Mitigation. 5-13
5.3.2.3 Marine Fishes - Impacts and Mitigation 5-14
5.3.2.4 Essential Fish Habitat 5-15
5.3.3 Threatened and Endangered Species 5-15
5.4 Land Use and Recreation 5-16
5.5 Aesthetics 5-17
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• 5.6 Sediment Chemical Contamination 5-18
5.6.1 Impacts and Mitigation Measures 5-18
5.7 Cultural Resources 5-19
5.6.1 Impacts and Mitigation Measures 5-18
5.8 No Action Alternative 5-20
5.9 Cumulative Impacts 5-21
5.9.1 Projects Considered in Cumulative Analysis 5-21
5.9.2 Cumulative Effects 5-21
5.10 Relationship Between Long-Term Uses and
Long-Term Productivity of the Environment 5-24
5.11 Irreversible and Irretrievable Commitment of Resources 5-24
5.12 Growth Inducing Impacts 5-25
6.0 ENVIRONMENTAL COMMITMENTS AND MITIGATION MEASURES 6-1
7.0 EFFECTS FOUND TO BE NOT SIGNIFICANT 7-1
8.0 COORDINATION AND COMPLIANCE 8-1
9.0 LIST OF PREPARERS 9-1
10.0 LITERATURE CITED 10-1
11.0 INDEX 11-1
LIST OF TABLES
Table 1 National and California Ambient Air Quality Standards,
Table 2. Maximum Pollutant Concentrations Monitored in the San Pedro Area.
Table 3. 1990 Emission Inventory for the South Coast Air Basin
Table 4a. Surface Water Quality Measurements.
Table 4h Sub-surface Water Quality Measurements.
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Table 5. Common Kelp Fish of Southern California by Sub-habitat Type.
Table 6. Listed Threatened, Endangered, Proposed Species Known or Expected to Occur
in the Rancho Palos Verdes Feasibility Study Area.
Table 7. Amount of Time Estimated to Naturally Uncover Nearshore Hard Rock Reef in
L,. Stud-- Area Alternatives
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the ��uuy Area - r�aLciiiati'vcs i & �.
Table 8. Cumulative Projects List.
LIST OF FIGURES
Fig. 1.1 Study Area
Fig. 2.1 Turbidity plume from Portuguese Bend
Fig. 3.1a Alternative 1 -Nearshore Dike
Fig. 3.lb Alternative 1 - Typical Cross-sections
Fig. 3.2a Alternative 2 - Offshore Dike
Fig. 3.2b Alternative 2 - Typical Cross-sections
Fig. 3.3 Haul Road to the Proposed Construction Site
Fig. 4.1 Surface and Subsurface Ocean Currents in the Southern California Bight.
Fig. 4.2 Boundaries of the South Coast Air Basin and Location of Air Monitoring Stations.
Fig. 4.3 Contaminant Sediment Offshore the Rancho Palos Verdes Peninsula.
Fig. 5.1. Sediment Thickness Over Bedrock and Areas of Potential Restoration Benefits
LIST OF APPENDICES
A. Marine Biological Survey
B. Sediment Survey
C. Habitat Valuation
D. Draft Coordination Act Report from USFWS
E. Section 404B(1) Analysis
F. Section 401 Waiver
G. Air Quality Record of Non-Applicability
H. Coastal Consistency Determination
I. Monitoring and Adaptive Management Plan
J. Biological Assessment
K Correspondence
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