FINAL PROGRAM ENVIRONMENTAL IMPACT REPORT ENVIRONMENTAL ASSESSMENT FOR THE CALLEGUAS REGIONAL SALINITY MANAGEMENT PROJECT SCH NO. 2000101104 EA no. 01-LC-007 Lead Agency: August 2002 FINAL PROGRAM ENVIRONMENTAL IMPACT REPORT ENVIRONMENTAL ASSESSMENT FOR THE CALLEGUAS REGIONAL SALINITY MANAGEMENT PROJECT Prepared for: Calleguas Municipal Water District 2100 Olsen Road Thousand Oaks, California 91360 Prepared by: Padre Associates, Inc. 5450 Telegraph Road, Suite 101 Ventura, California 93003 805/644-2220, 805/644-2050 (fax) August 2002 Project No. 9902-1761 Calleguas Municipal Water District Calleguas Regional Salinity Management Project Table of Contents TABLE OF CONTENTS Page 1.0 INTRODUCTION............................................................................................................1-1 1.1 DOCUMENT PURPOSE AND LEGAL AUTHORITY ............................................1-1 1.2 PROJECT OBJECTIVES/PURPOSE AND NEED ................................................1-3 1.3 SCOPE AND CONTENT .......................................................................................1-4 1.4 RESPONSIBLE AND TRUSTEE AGENCIES .......................................................1-6 1.5 MITIGATION MONITORING PLAN.......................................................................1-6 1.6 PROJECT APPROVALS AND PERMITS .............................................................1-7 1.7 CERTIFICATION OF THE FINAL PROGRAM EIR ...............................................1-7 2.0 SUMMARY ....................................................................................................................2-1 2.1 PROJECT SYNOPSIS..........................................................................................2-1 2.2 AREAS OF KNOWN CONTROVERSY.................................................................2-3 2.3 SUMMARY OF ENVIRONMENTAL IMPACTS, MITIGATION MEASURES AND ALTERNATIVES....................................................................................................2-3 2.4 COMPARISON OF THE ALTERNATIVES............................................................2-3 2.5 ENVIRONMENTALLY SUPERIOR ALTERNATIVE..............................................2-5 3.0 PROPOSED PROJECT/PROPOSED ACTION .............................................................3-1 3.1 PROJECT LOCATION ..........................................................................................3-1 3.2 PROJECT PROPONENT......................................................................................3-1 3.3 PROJECT CHARACTERISTICS...........................................................................3-1 3.4 PHASE I..............................................................................................................3-12 3.5 PHASE II.............................................................................................................3-13 3.6 PROJECT CONSTRUCTION..............................................................................3-16 3.7 PROJECT OPERATION AND MAINTENANCE..................................................3-21 4.0 ALTERNATIVES TO THE PROPOSED ACTION ..........................................................4-1 4.1 ALTERNATIVE BRINE DISPOSAL METHODS ....................................................4-2 4.2 ALTERNATIVE PIPELINE ALIGNMENTS ............................................................4-4 4.3 ALTERNATIVE OCEAN OUTFALL.......................................................................4-9 5.0 ENVIRONMENTAL ANALYSIS...................................................................................5.1-1 5.1 LAND USE..........................................................................................................5.1-1 5.2 GEOLOGY..........................................................................................................5.2-1 Page i Calleguas Municipal Water District Calleguas Regional Salinity Management Project Table of Contents TABLE OF CONTENTS (Continued) Page 5.3 AIR QUALITY .....................................................................................................5.3-1 5.4 WATER RESOURCES.......................................................................................5.4-1 5.5 BIOLOGICAL RESOURCES..............................................................................5.5-1 5.6 AGRICULTURE..................................................................................................5.6-1 5.7 NOISE ................................................................................................................5.7-1 5.8 AESTHETICS.....................................................................................................5.8-1 5.9 TRANSPORTATION ..........................................................................................5.9-1 5.10 RISK OF UPSET..............................................................................................5.10-1 5.11 CULTURAL RESOURCES...............................................................................5.11-1 5.12 SOCIOECONOMICS........................................................................................5.12-1 5.13 INDIAN TRUST ASSETS .................................................................................5.13-1 6.0 GROWTH INDUCEMENT ..............................................................................................6-1 7.0 IRREVERSIBLE OR IRRETRIEVABLE COMMITMENTS OF RESOURCES ...............7-1 8.0 CONSULTATION AND COORDINATION......................................................................8-1 8.1 PERSONS AND AGENCIES CONSULTED..........................................................8-1 8.2 SCOPING AND PUBLIC INVOLVEMENT.............................................................8-1 8.3 SECTION 7 CONSULTATION UNDER THE ENDANGERED SPECIES ACT .....8-2 8.4 SECTION 106 CONSULTATION UNDER THE NATIONAL HISTORIC PRESERVATION ACT ..........................................................................................8-2 9.0 SUMMARY OF MITIGATION MEASURES/ENVIRONMENTAL COMMITMENTS........9-1 10.0 LIST OF PREPARERS.................................................................................................10-1 10.1 PADRE ASSOCIATES, INC. ...............................................................................10-1 10.2 CONEJO ARCHEOLOGICAL CONSULTANTS..................................................10-1 10.3 BUREAU OF RECLAMATION.............................................................................10-1 11.0 REFERENCES.............................................................................................................11-1 12.0 DISTRIBUTION LIST...................................................................................................12-1 13.0 RESPONSE TO COMMENTS .....................................................................................13-1 Page ii Calleguas Municipal Water District Calleguas Regional Salinity Management Project Table of Contents APPENDICES A Notice of Preparation and Initial Study B Responses to Notice of Preparation C Air Quality Emissions Calculations D Noise Model Output LIST OF FIGURES Page Figure 2-1 Aerial Photograph of the Phase I Project Area............................................ 2-7 Figure 3-1 Regional Location ....................................................................................... 3-3 Figure 3-2 Preferred Pipeline Alignment and Wastewater Input Sources .................... 3-5 Figure 3-3 Segment F-G of the Phase I Pipeline Alignment ......................................... 3-23 Figure 3-4 Segment G-H of the Phase I Pipeline Alignment......................................... 3-25 Figure 3-5 Segments A-B, B-C of the Phase II Pipeline Alignment .............................. 3-27 Figure 3-6 Segment C-D of the Phase II Pipeline Alignment........................................ 3-29 Figure 3-7 Segment D-E of the Phase II Pipeline Alignment ........................................ 3-31 Figure 3-8 Segment E-F of the Phase II Pipeline Alignment ........................................ 3-33 Figure 5.1-1 Existing Land Uses Along Segment F-G of the Phase I Pipeline Alignment ..................................................................................................................... 5.1-5 Figure 5.1-2 Existing Land Uses Along Segment G-H of the Phase I Pipeline Alignment ..................................................................................................................... 5.1-7 Figure 5.1-3 Existing Land Uses Along Segments A-B, B-C of the Phase II Pipeline Alignment ..................................................................................................................... 5.1-9 Figure 5.1-4 Existing Land Uses Along Segment C-D of the Phase II Pipeline Alignment ..................................................................................................................... 5.1-11 Figure 5.1-5 Existing Land Uses Along Segment D-E of the Phase II Pipeline Alignment ..................................................................................................................... 5.1-13 Figure 5.1-6 Existing Land Uses Along Segment E-F of the Phase II Pipeline Alignment ..................................................................................................................... 5.1-15 Figure 5.2-1 Geology of Segment F-G of the Phase I Pipeline Alignment....................... 5.2-3 Figure 5.2-2 Geology of Segment G-H of the Phase I Pipeline Alignment ...................... 5.2-5 Figure 5.2-3 Geology of Segments