CAWP DEIR Application DRAFT
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Central Amador Water Project (CAWP) Water Right Application Environmental Impact Report DRAFT SCH #2016092008 Lead Agency: Amador Water Agency 12800 Ridge Road Sutter Creek, CA 95685 Contact: Gene Mancebo 209.223.3018 Prepared By: May 2017 Amador Water Agency CAWP Water Right Application Table of Contents Environmental Impact Report DRAFT This page intentionally left blank. Amador Water Agency CAWP Water Right Application Table of Contents Environmental Impact Report DRAFT Table of Contents Executive Summary ................................................................................................ ES-1 ES-1 Introduction .............................................................................................. ES-1 ES-2 Project Location ....................................................................................... ES-2 ES-3 Purpose and Need ................................................................................... ES-2 ES-4 CEQA Objectives ..................................................................................... ES-2 ES-5 Summary of Impacts ................................................................................ ES-2 Chapter 1 Introduction ............................................................................................... 1-1 1.1 Introduction ................................................................................................. 1-1 1.2 Compliance with CEQA ............................................................................... 1-1 1.2.1 State Requirements .................................................................................... 1-1 1.2.2 CEQA EIR Process ..................................................................................... 1-2 1.2.3 Action on the Project ................................................................................... 1-3 1.2.4 Mitigation Monitoring and Reporting ............................................................ 1-4 1.3 Organization of this EIR .............................................................................. 1-4 Chapter 2 Proposed Project ..................................................................................... 2-1 2.1 Introduction ................................................................................................. 2-1 2.2 Project Location .......................................................................................... 2-1 2.3 Background ................................................................................................. 2-1 2.3.1 Water Rights ............................................................................................... 2-4 2.4 Project Description ...................................................................................... 2-5 2.4.1 Purpose and Need ...................................................................................... 2-5 2.4.2 Project Objectives ....................................................................................... 2-5 2.4.3 Project Desciption ....................................................................................... 2-5 2.4.4 Management Practices for CAWP Water Supply ........................................ 2-6 2.4.5 Existing Facilities and Operational Requirements ....................................... 2.8 2.4.6 Required Permit .......................................................................................... 2-8 2.5 References .................................................................................................. 2-8 Chapter 3 Setting, Impacts, and Mitigation ........................................................... 3.0-1 3.0 Introduction to Environmental Analysis .................................................... 3.0-1 3.0.1 Organization of Chapter 3 ........................................................................ 3.0-1 3.0.2 Organization of Discussion of Environmental Issue Areas ....................... 3.0-1 3.0.3 Approach to Analysis of Cumulative Impacts ........................................... 3.0-2 3.0.4 References ............................................................................................... 3.0-4 3.1 Hydrology ................................................................................................. 3.1-1 3.1.1 Environmental Setting .............................................................................. 3.1-1 3.1.2 Regulatory Framework ............................................................................. 3.1-1 3.1.3 Impact Analysis ........................................................................................ 3.1-2 3.1.4 References ............................................................................................... 3.1-7 May 2017 i Amador Water Agency CAWP Water Right Application Table of Contents Environmental Impact Report DRAFT 3.2 Biological Resources ................................................................................ 3.2-1 3.2.1 Environmental Setting .............................................................................. 3.2-1 3.2.2 Regulatory Framework ............................................................................. 3.2-2 3.2.3 Impact Analysis ........................................................................................ 3.2-2 3.2.4 References ............................................................................................... 3.2-5 3.3 Growth Inducement .................................................................................. 3.3-1 3.3.1 Consideration of Growth Inducement under CEQA.................................. 3.3-1 3.3.2 Growth Inducement .................................................................................. 3.3-1 3.3.3 Constraints to Growth .............................................................................. 3.3-2 3.3.4 Projected Extent of Growth in CAWP Service Area ................................. 3.3-3 3.3.5 Indirect Impacts Associated with Growth ................................................. 3.3-5 3.3.4 References ............................................................................................. 3.3-10 Chapter 4 Other CEQA Considerations ................................................................... 4-1 4.1 Significant and Unavoidable Impacts .......................................................... 4-1 4.2 Significant Irreversible Environmental Changes .......................................... 4-1 4.3 Effects Not Found to be Significant ............................................................. 4-1 4.4 Cumulative Impacts ..................................................................................... 4-1 4.5 Alternatives Evaluation ................................................................................ 4-1 4.5.1 Methodology ............................................................................................... 4-1 4.5.2 Reduced Growth Alternative ....................................................................... 4-2 4.5.3 No Project Alternative ................................................................................. 4-3 4.5.4 Comparison of Alternatives ......................................................................... 4-3 4.5.5 Environmentally Superior Alternative .......................................................... 4-3 4.6 References .................................................................................................. 4-4 Chapter 5 Report Preparers ....................................................................................... 5-1 5.1 Amador Water Agency ................................................................................ 5-1 5.2 RMC Water and Environment ..................................................................... 5-1 5.3 AD Consultants ........................................................................................... 5-1 5.4 Hanson Environmental, Inc. ........................................................................ 5-1 May 2017 ii Amador Water Agency CAWP Water Right Application Table of Contents Environmental Impact Report DRAFT List of Tables Table ES-1 Summary of Potential Project Impacts ................................................ ES-4 Table 1-1: Parties that Submitted Comments during the Scoping Period ............... 1-2 Table 3.0-1: List of Cumulative Projects ................................................................. 3.0-4 Table 3.1-1: Diversion Scenarios ............................................................................ 3.1-3 Table 3.1-2: Average Annual Flow in cfs by Year Type for Maximum Diversion Pre-Project ......................................................................................... 3.1-4 Table 3.1-3: Change in Average Flow from Pre-Project to Post-Project by Year Type (in cfs and %) ............................................................... 3.1-6 Table 3.3-1: Estimated Population and Water Demand in CAWP Service Area – Existing and Build-out ......................................................................... 3.3-5 Table 4-1: Comparison of Alternatives ................................................................... 4-3 List of Figures Figure ES-1: Project Vicinity .................................................................................... ES-3 Figure 2-1: Vicinity Map ........................................................................................... 2-2 Figure 2-2: AWA Current Area Served and CAWP Place of Use............................