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The Metropolitan Water District of Southern California. Bay-Delta Conservation Plan. May 30, 2013. Metropolitan Water District of Southern California. Regional Water Wholesaler to 6 counties 5,200 square miles 26 Member Agencies ~18 million residents Regional economy: ~$1 trillion

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The Metropolitan Water District of Southern California

Bay-Delta Conservation Plan

May 30, 2013


Metropolitan water district of southern california
Metropolitan Water District of Southern California

  • Regional Water Wholesaler to 6 counties

    • 5,200 square miles

  • 26 Member Agencies

  • ~18 million residents

  • Regional economy: ~$1 trillion

  • Estimated Retail Demand:

    • 4 million acre-feet

    • Provide about ½ of retail demands


Sources of Water for Southern California

Sierra Mountains

LA Aqueduct

Bay/Delta

Colorado River Aqueduct

State Water Project

Conservation

Local Groundwater and Recycling



Los Angeles Aqueduct

State Water Project

Colorado River Aqueduct

The Bay-Delta

Hub of California’s Water

Some regions up to 100% dependent

Bay Area – 33%

Central Valley – 23 to 90%

Southern Cal – 30%

Local


Water flowing through the delta
Water Flowing Through the Delta

In-Delta Consumptive Use4%

MWD4%

Delta Exports17%

UpstreamConsumptive Use31%

Pacific Ocean48%

Source: Governor’s Delta Vision Report (Estimated total annual runoff 32.85 maf)

6



Southern california s water portfolio
Southern California’s Water Portfolio

  • 25% Colorado River supplies

  • 30% State Water Project (flowing through the Delta)

  • 45% Local Supplies

    • Los Angeles Aqueduct

    • Conservation

    • Recycling

    • Groundwater

    • Desalination


Metropolitan s integrated resource plan

Water Use Efficiency

  • 20% Reduction in Per-Capita Water Use

Metropolitan's Integrated Resource Plan

Local Resources

  • Develop Incentives and Partnerships

  • Implement Foundational Actions

Blueprint for Adapting to Change

SWP

  • Delta Improvements for Reliability

CRA

  • Develop Dry-Year Supply Programs


Metropolitan s integrated resource plan1

Water Use Efficiency

  • 20% Reduction in Per-Capita Water Use

Metropolitan's Integrated Resource Plan

Local Resources

  • Develop Incentives and Partnerships

  • Implement Foundational Actions

Blueprint for Adapting to Change

  • What Does This Mean?

  • Stabilize Imported Supplies

  • Increase Efficiency and Local Resources

SWP

  • Delta Improvements for Reliability

CRA

  • Develop Dry-Year Supply Programs


Diversification of Water Portfolio

Dry Year Supplies

Early 1990’s

2010 IRP Strategy

Heavy dependence on

imported supply and SWP Diversions

Emphasis on Conservation, Local Supplies, and Storage & Transfers


Metropolitan’s Storage Programs

Central Valley/SWP Storage

San Luis Carryover

Semitropic Arvin-Edison

Kern Delta

Mojave

CRA StorageAdvance Delivery

Lake Mead ICS

Local StorageDiamond Valley Lake MathewsLake SkinnerConjunctive Use GroundwaterDWR State Project Reservoirs


Metropolitan has increased the region s storage capacity
Metropolitan Has IncreasedThe Region's Storage Capacity

14x Increase in Capacity


Regional Investments

Reducing Reliance on Imports

Conservation: 900,000 af/yr

Recycling: 335,000 af/yr

Groundwater Recovery:111,000 af/yr

Seawater: 46,000 af/yr (planned)

Conservation represents regional actions both active & passive

Recycling & groundwater represents total regional production 2012 (MWD & member agency)

Seawater represents 3 planned local projects


Cost Comparison (per acre-foot)

Metropolitan is committed to meeting future additional

water supply needs through local resources and conservation

$1,400 -3,500+/AF

$1,600 -3,500+/AF

$940 -2,500/AF

$1,600 -2,300/AF

Local Supply Avg. ~ $1,500/AF

SWP Existing ($650/AF) + Delta Improvements ($200/AF) = ~ $850/AF

Revised: December 18, 2012

15


Benefits and costs of bay delta conservation plan
Benefits and Costs OfBay-Delta Conservation Plan


Delta Conveyance Improvements

SWP & CVP Reliability

South Exports Only

Metropolitan’s share ~ 25%

Exports will be minimal for 1.5 to 3 years following an earthquake

1.0 - 1.5

Includes work completed by the BDCP Steering Committee effort


Water quality salinity management

Sylmar

Water Quality & Salinity Management

Las Posas

Verdugo

East San

Fernando

Raymond

Six Basins

Cucamonga

Main

San Gabriel

Chino

  • Objectives

    • Improve export quality to meet Public Health standards & reduce treatment costs

    • Support actions to minimize salinity imports

    • Meet 500 mg/l blending goal

  • Some Basin Plans have low TDS objectives

    • Could restrict extended recharge of high salinity Colorado River water *

San Jacinto

Orange

County

Elsinore

Upper San Juan

San Mateo & San Onofre

Warner Valley

18

* Some of the highlighted basins do not currently receive MWD recharge supplies


BDCP: Preliminary Cost Analysis

Metropolitan’s share is approximately 25 percent

The $14 billion estimate per the Governor’s announcement (July 25, 2012)

Other cost information from Dec-2010 BDCP document

Users pay – new conveyance & associated mitigation

Beneficiaries pay – habitat conservation & other state-wide benefits

Average cost for Southern Californians ~ $5 - 6/month per household

19


Capital cost comparisons
Capital Cost Comparisons

BDCP Economic Benefits and Financial Strategies, SCWC/The PFM Group, February 2012

  • BDCP Delta Facilities

  • San Francisco PUC Hetch Hetchy Project

    • Repairs to protect against future seismic events, and to meet current building codes and drinking water regulations

  • Contra Costa Water District’s Los Vaqueros Project

    • Improves water quality and provides emergency storage


Regional cost comparisons
Regional Cost Comparisons

BDCP Economic Benefits and Financial Strategies, SCWC/The PFM Group, February 2012

  • MWD share of BDCP Cost

  • MWD Diamond Valley Reservoir/Inland Feeder projects

    • Primarily an emergency storage facility but also provides drought and water quality benefits

  • SDCWA Emergency Storage Project

    • Enhances reliability of the water supply of San Diego in the event of seismic disruption


Summary
Summary

  • Delta is critical to California’s water supply

  • Southern California is committed to conservation and local supplies for future growth and diversification

    • 1.1 MAF of conservation and local resources will be developed to meet future needs

  • Storage has been developed to manage “big gulp/little sip”

  • Stable imported supplies are needed for reliability


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