ENVIRONMENTAL NOTICES

PROJECT TITLE:  Pasadena Groundwater Storage Program

PROJECT LOCATION:  Citywide

Case Manager: Brad Boman

 Engineering Manager, Water & Power

PROJECT DESCRIPTION:

The proposed project is a conjunctive use program between Metropolitan Water District of Southern California (MWD), Pasadena Water & Power (PWP), and  Foothill Municipal Water District (FMWD) to improve the reliability of water supply to the City of Pasadena and surrounding water agencies and reduce the region’s dependence on imported MWD water during an emergency or drought conditions. The program would store up to 66,000 acre-feet of imported MWD water in the Pasadena subarea of the Raymond Basin when imported water supply is plentiful.  The water could then be extracted at a rate of up to 22,000 acre-feet per year when imported supplies are limited due to a drought or emergency.

Imported water would be stored in the Raymond Basin by direct injection using aquifer storage and recovery wells (ASR wells), spreading grounds (irrigation of area to generate seepage into groundwater) and in-lieu recharge (reduced groundwater pumping) then recovered later using PWP and FMWD member agencies’ extraction facilities at the request of MWD. Program operation would be monitored and regulated by the Raymond Basin Management Board (Watermaster) to ensure no harm to the basin or basin parties. The Pasadena Groundwater Storage Program would have an initial term of 25 years.

A critical component of the PGSP would be construction of PWP and FMWD capital improvements that would increase groundwater extraction and injection capacity.  MWD would fund the necessary capital improvements, which would be owned and operated by PWP and FMWD or it’s assigned, pursuant to an agreement with MWD. Capital improvements to be constructed under the proposed project consist of five major components: (1) construction of three ASR wells, (2) construction of a groundwater nitrate treatment facility, (3) construction of a new or upgraded interconnection between the PWP and FMWD water distribution systems, (4) construction of a groundwater perchlorate treatment facility, and (5) construction of a collector pipeline between seven existing wells in the PWP service area.

Documents Available for Review:

  Final EIR

  Additional Comments to the Final EIR

            Public Draft Environmental Impact Report

• Table of Contents

• Lists of Tables, Figures and Abbreviations

• Summary

• Chapter 1 - Introduction

• Chapter 2 - Project Description

• Chapter 3 - Environmental Setting, Impacts and Mitigations

• Chapter 4 - Other CEQA Considerations

• Chapter 5 - Cumulative Impacts

• Chapter 6 - Alternatives to the Proposed Project

• Chapter 7 - Report Preparers and Persons Consulted

• Appendix A - Relevant Regulations, Goals and Policies

• Appendix B - Notice of Preparation

• Appendix C - Hydrology and Water Quality

• Appendix D - Air Quality

• Appendix E - Noise

• Appendix F - Cultural Resources

• Appendix G - Site Photographs

• Appendix H - Hazards and Hazardous Materials

Last Updated 04/29/2008