Plans & Studies

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For rate and fee studies, see Financial Information


2015 Urban Water Management Plan, June 2016

Water Master Plan Update, March 2016

Appendices, Water Master Plan Update

Tri-Valley Water Policy Roundtable: Potable Reuse Project

Joint Tri-Valley Potable Reuse Technical Feasibility Study, May 2018 

Tri-Valley Water Reliability Issues Survey, conducted November 2015

Possible Next Steps: Potable Reuse Feasibility Study and Public Education, February 2016

Long-Term Alternative Water Supply Study, Final Report, September 2015


Wastewater Treatment and Biosolids Facilities Master Plan, September 2017 

Executive Summary, Wastewater Treatment and Biosolids Facilities Master Plan

Appendices, Wastewater Treatment and Biosolids Facilities Master Plan

Presentations to Board of Directors on Draft Plan, March 21 and April 18, 2017

Sewer System Management Plan, September 2012

Odor Control Study, July 2009

Wastewater Collection System Master Plan Update 2005

Table of Contents
Executive Summary

Section 1 Introduction

Section 2 Land Use and Flows

Section 3 Modeling and Capacity Analysis

Section 4 Sewer Improvement Projects

Section 5 Capital Improvement Projects

Section 6 Other Recommendations

Appendices A and B

Appendix C

Appendix D

Appendix E

Appendix F

Appendix G

Appendix H

Appendix I

Appendix J

General Topics

Updated Tri-Valley Local Hazard Mitigation Plan Vol. 1 2018 

Updated Tri-Valley Local Hazard Mitigation Plan Vol. 2 2018

DSRSD Strategic Plan for fiscal years ending 2019-2024, May 2019

Tri-Valley Utilities Coordination/Integration Study, Phase 1 Final Report, October 2013

Summary of Local Hazard Mitigation Plan, September 2009




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