California Water Commission June 28, 2018

Los Vaqueros Reservoir Off-stream reservoir in Contra Costa County Operated in conjunction with four Delta intakes Capacity of 160 TAF Uses: Water quality Drought storage Emergency storage Flood control Recreation

Los Vaqueros Reservoir 20,000-acre watershed managed by CCWD for protection of: Water quality Sensitive species and habitat CCWD also manages more than 5,000 acres of mitigation properties: Contra Costa Alameda San Joaquin Marina

High Implementation Certainty CCWD financed and implemented 1998 dam, intake, and conveyance construction 2009 new intake 2012 dam raise Completed on schedule and on budget September 27, 2011

Proposed Los Vaqueros Reservoir Expansion Project What are the objectives? Environmental Water Water Supply Reliability Improved Water Quality Enhanced Recreation Who will benefit? San Joaquin Wildlife Refuges Bay Area Water Agencies South-of-Delta CVP Contractors Statewide Water System How will benefits be achieved? Construct new pipelines, new pump stations, raise the dam Re-operate existing facilities Integrate regional systems Coordinate with other state-wide water operations San Joaquin River National Wildlife Refuge

Status of Funding Application Eligible amount: $459 million Public benefit ratio: 1.81 Preliminary total score of 76 points Placed in Rank 2 CCWD concurs with staff recommendations on Commission Determinations 2 through 9 CCWD requests that the Commission determine that the LVE Project is cost effective (Determination 1)

Federal Feasibility Findings Bureau of Reclamation determined: Technically and environmentally feasible Economically feasible Benefit/Cost (B/C) ratio = 1.25 Financially feasible M&I and agricultural beneficiaries have financial ability to pay Resilient: maintains its benefits under Wide range of climate change scenarios California WaterFix

Federal Feasibility Recommendations Federal interest in implementing LVE Provide water supplies to wildlife refuges Improve water supply reliability for M&I and agricultural uses Improve flexibility of the statewide water management system Recommends authorization for Federal participation in implementing LVE

Local Agency 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 Grassland Water District San Francisco Public Utilities Commission San Luis & Delta-Mendota Water Authority Santa Clara Valley Water District Zone 7 Water Agency Del Puerto Water District San Luis Water District Westlands Water District Additional agencies on a waiting list

(not including emergency storage) Other Options Available to Partners LVE provides a cost-competitive option, close to home, with higher reliability, certainty, and flexibility Local Bay Area Supply Alternatives Cost ($ / AF) SFPUC’s 2017-18 wholesale water rate $1800 (treated), $1600 (untreated) Water Transfers (below normal years, TRD) (2030-2045) $267 - $632 * Local Groundwater (extraction, treatment, replenishment) $400 - $1,600 ** Stormwater Capture and Recharge $570 - $1,600 ** Recycled Water $1,500 - $9,000 ** Advanced Water Purification (Potable Reuse) $1,600 - $2,700 ** Desalination $1,000 - $5,500 Phase 2 LVE Project (capital, O&M) $580 ($300 - $700) (not including emergency storage) * ACWD, SCVWD, and SFPUC (2018) ** Pacific Institute (2016) and SFPUC (2018)

Non-Monetized Benefits Improve operational flexibility of the statewide water system Additional system storage at key location Ability to move water around south of Delta State & Federal pumps Improve regional reliability and coordination Physical interties between multiple agencies Maximizes use of existing regional facilities Local storage to leverage uses of other supply sources Part of Bay Area Regional Reliability Program

Key Facilities of Proposed Project Existing intakes and Transfer- Bethany Pipeline can be used to deliver water directly without use of SWP and CVP export pumps

Economic Feasibility CCWD reviewed calculations updated by staff CCWD updated calculations to reflect May meeting M&I water supply to SCVWD, BAWSCA, and SFPUC valued consistently with Pacheco Reservoir values Used alternative cost of groundwater in north Santa Clara County Public benefits were not revised Staff Estimates (after May Meeting) Total Public Benefits $832.68 Non-Public Benefits $535.86 Total Benefits $1,368.54 Capital Costs $845.24 Total Cost (Capital + Non-Capital) $1,452.32 WSIP Capital Request (Eligible Amount) $459.00 Total B/C ratio 0.94 Total PBR 1.81

CCWD Updated Calculation Economic Feasibility Staff Estimates (after May Meeting) CCWD Updated Calculation Total Public Benefits $832.68 Non-Public Benefits $535.86 $829.64 Total Benefits $1,368.54 $1,662.32 Capital Costs $845.24 Total Cost (Capital + Non-Capital) $1,452.32 WSIP Capital Request (Eligible Amount) $459.00 Total B/C ratio 0.94 1.14 Total PBR 1.81

Determination 1 Independent Federal assessment concluded benefit cost ratio is 1.25 LVE is a cost-competitive option compared to other options available to Local Agency Partners CCWD updated calculation demonstrates benefit/cost ratio of 1.14 CCWD requests that the Commission determine that the LVE Project is cost effective

Thank you Questions? Project Information http://www.ccwater.com/lvstudies Contact Information Marguerite Patil Maureen Martin Contra Costa Water District P.O. Box H20 Concord, CA 94524 (925) 688-8018 (925) 688-8323 mpatil@ccwater.com mmartin@ccwater.com

Staff’s Preliminary Score Preliminary Component Scoring Component Max Score Staff’s Preliminary Score Public Benefit Ratio + Non-Monetized Benefits 33 23 Relative Environmental Value 27 17 Resiliency 25 22 Implementation Risk 15 14 Return for Public Investment 76 LVE is a Rank 2 Project