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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

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The metropolitan water district of southern california

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


The metropolitan water district of southern california

Sources of Water for Southern California

Sierra Mountains

LA Aqueduct

Bay/Delta

Colorado River Aqueduct

State Water Project

Conservation

Local Groundwater and Recycling


Importance of delta

Importance of Delta


The metropolitan water district of southern california

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


We have diverse supplies

We Have Diverse Supplies


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


The metropolitan water district of southern california

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


The metropolitan water district of southern california

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


The metropolitan water district of southern california

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


The metropolitan water district of southern california

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


The metropolitan water district of southern california

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


The metropolitan water district of southern california

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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