The Los Vaqueros Reservoir Expansion Project

Transcription

1 The Los Vaqueros Reservoir Expansion Project Marguerite Patil Special Assistant to the General Manager Contra Costa Water District SCVWD/CCWD Joint Meeting July 14, 2016

2 Today s Itinerary 11:00 11:50 Presentation and Q&A (Lunch Provided) 11:50 12:00 Safety briefing/board bus 12:00 12:30 Tour of Los Vaqueros Dam 12:30 12:45 Drive to Old River Intake 12:45 1:15 Tour Old River Intake 1:15 1:30 Drive to Transfer Pump Station 1:30 1:45 Tour Transfer Pump Station (time allowing) 1:45 2:00 Return drive to Los Vaqueros 2:00 Conclude tour and adjourn meeting 2

3 Location of Los Vaqueros Adjacent to the Delta 3

4 Original Los Vaqueros Project 100,000 acre-foot reservoir completed in 1998 Provides Emergency Storage Protects against a catastrophe in the Delta Improves Water Quality Changes the timing and location of diversions Stores water for blending when Delta water quality is poor Enhances Delta Environment State-of-the-art fish screens Flexible timing and location of diversion Provides Watershed Resource Management Protects Water Quality Protects Sensitive Resources Provides Appropriate Recreation Provides Flood Control Protection 4

5 Los Vaqueros Facilities CCWD / EBMUD Intertie Transfer Pipeline Old River Pipeline Old River Intake: Completed cu. ft./sec. capacity Middle River Intake: Completed cu. ft./sec. capacity Can operate either or both intakes for best water quality and operational flexibility Fill reservoir in winter and spring when Delta salinity is low Release stored supplies to blend with Delta diversions in summer and fall when Delta salinity is high 5

6 Highlights of the Los Vaqueros Watershed Features 160,000 acre-foot (AF) reservoir 20,000 acres of protected watershed Interpretive Center and educational programs Recreational Activities Picturesque fishing with 12 varieties of fish Electric boating 55 miles of hiking trails Cycling Horseback riding 6

7 Key Species Red legged frog California tiger salamander San Joaquin Kit Fox Alameda Whipsnake Western Pond Turtle Burrowing Owl Raptors / Golden eagle Oak trees Native plants Delta smelt Longfin smelt Chinook salmon (winter, spring, fall and late-run) Steelhead Green sturgeon 7

8 CCWD Fish Screens Protect Delta Fisheries Old River and Middle River Intake Diversions Low volume and velocity Fish can swim past screens Very low fish losses 8

9 Fish Monitoring Verifies Delta Fisheries Protection Biologists routinely monitor fish screens Fine screen nets and microscopic sampling Only one delta smelt caught at Old and Middle Rivers since

10 Public Support for Expansion More than 65 public meetings Customer/Stakeholder Feedback Group Agency Coordination Work Group 2004 public vote supporting expansion Only 60 comments on Draft EIS/EIR Final EIS/EIR completed and certified on March 31, 2010 (covers proposed 275 TAF expansion project) No significant opposition to approved project No legal challenge to EIR 10

11 Los Vaqueros Reservoir Expansion Project First Phase Completed On Time and On Budget $109 million project to improve drought supply Dam height increased by 34 feet (160,000 acre-feet) Enhanced recreation Dec 2010 Cost effective design used existing dam and Delta intakes Construction began April 2011 Refill started Fall 2011 Completed construction Fall 2012 No impact on customers October February

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13 Studies Continue on Next Phases of Expansion up to 275,000 acre-feet Allows diversion timing flexibility Avoid fish take Store highest quality water for urban use Stores water for drought or emergencies Compatible with Regional Desalination Adaptable to change in Delta conditions Responsive to climate change Requires local partners Old River Intake 13

14 Sources of Water Stored in LV Current Supply Sources: Central Valley Project (CVP) contract CCWD Los Vaqueros water rights Pilot Partnerships: BBID 2014 & 2015 ACWD 2014 ACWD & Zone /16 Potential Supply Sources: State Water Project (SWP) contracts Water stored via exchange with CVP and/or SWP contract supplies SCVWD recycled water Other recycled water Bay Area Regional Desalination Water transfers 14

15 California Water Commission Cost Share The CWC will award Proposition 1 funds for storage projects. Cap for CWC investment: 50% total project Can be more than 50% for conjunctive use or reservoir reoperation projects Only funding public benefits: Ecosystem Improvement Water Quality Improvement Emergency Response Recreation 15

16 Estimated Costs Capital cost (separated by possible phases) $150M to $200M Transfer-Bethany Pipeline $500M to $600M Dam raise Upgraded pumps for filling Los Vaqueros Other conveyance improvements Unit costs $500 to $800 per acre foot 16

17 Schedule Jun Dec Jun Nov Dec Dec Draft LVREP Supplemental EIS/R Initial commitments from potential partners Proposition 1 funding application CWC initial funding decision CWC agreement to fund CEQA and permitting Potential partner agreements to fund CEQA and permitting Final Supplemental EIS/R Final design, permitting, and land acquisition Local funding commitments CWC agreement to fund construction 17

18 Potential Partners Alameda County Water District Bay Area Water Supply and Conservation Agency Byron-Bethany Irrigation District City of Brentwood East Bay Municipal Utility District East Contra Costa Irrigation District San Francisco Public Utilities Commission San Luis Delta Mendota Water Authority Santa Clara Valley Water District U.S. Bureau of Reclamation Zone 7 Water Agency 18

19 Thank You Jerry Brown, General Manager Marguerite Patil, Special Assistant to the General Manager Jennifer Allen, Director of Public Affairs Contra Costa Water District