460 likes | 590 Views
URBAN WATER INSTITUTE 18 th Annual Water Policy Conference Update on Long-Term Delta Solutions. August 25, 2011. Introduction. Metropolitan Water District of Southern California. Regional Water Wholesaler to 6 counties 5,200 square miles 26 Member Agencies ~19 million residents
E N D
URBAN WATER INSTITUTE 18th Annual Water Policy Conference Update on Long-Term Delta Solutions August 25, 2011
Metropolitan Water District of Southern California • Regional Water Wholesaler to 6 counties • 5,200 square miles • 26 Member Agencies • ~19 million residents • Regional economy: $1 trillion • Retail demand 2009: • 4 million acre-feet • Provided about ½ of retail demands
Sources of Water for Southern California Sierra Mtns LA Aqueduct Delta Colorado River Aqueduct Supplies State Water Project Supplies Conservation Local Groundwater and Recycling
MWD’s Balanced Approach Early 1990’s Current Strategy Heavy dependence on imported supply and SWP Diversions Emphasis on Conservation, Local Supplies, and Storage & Transfers
Local Investments Reduce Needs for Imported Supplies Retail Demand
Local Investments Reduce Needs for Imported Supplies Retail Demand
Local Investments Reduce Needs for Imported Supplies Retail Demand New Local Supply & Conservation
Metropolitan’s Storage Capacity 14x Increase in Capacity
Conservation, Recycling, & GW Recovery Actual Projected
Imported Water is Essential • Colorado River • Decade-long drought • Growth in the lower basin • Environmental
Colorado River Cut to Basic Apportionment Lower Colorado River MSCP Transfer Programs Colorado River Drought 1 MAF+
Key Delta Risks Fishery Declines Delta smelt Subsidence Sea Level Rise Seismic RiskBay Area Faults
Los Angeles Aqueduct State Water Project Colorado River Aqueduct Statewide Risk Some regions up to 100% dependent Bay Area – 33% Central Valley – 23 to 90% Southern Cal – 30% Local
Seismic Vulnerability Concord Vaca-Kirby Rodgers Crk Midland 4% San Andreas Antioch Hayward Greenville 27% 3% 21% 11% San Gregorio Calaveras 10% % 66% probability of > 6.5 magnitude earthquake by 2032 Bay-Delta Region Major Faults
Judicial Ruling Total Impacts • 2008 • 670,000 Acre-feet • ~$201 million • 2009 • 619,000 Acre-feet • ~$186 million • 2010 • 1,043,000 Acre-feet • ~$313 million
A Balanced Approach for Co-Equal Goals • Co-Equal Goal 1 – Ecosystem Restoration • Co-Equal Goal 2 – Water Supply Reliability • Disaster • ESA protection
Ecosystem Restoration and Preservation Targets Ecosystem Restoration Target = Twice the size of Washington DC
Beyond Habitat Restoration Toxics, Unscreened Diversions, etc. Sacramento Predator Control Sac River Ammonia Ocean Conditions Stockton Corbulaamurensis(Overbite clam) Invasive Species Egeriadensa (Brazilian Waterweed)
Conveyance Alignment Options Sacramento Sac River Stockton SJ River SWP Pumps CVP Pumps Preliminary Subject to Revision
Long-term operations permit Coverage for existing & future listed species Future regulatory obligation defined upfront Regulatory Assurances
East Canal ~ $8 billion * West Canal ~ $9 billion * Tunnel ~ $12.7 billion * What is the Range of Cost? * URS developed initial cost estimates; Second independent expert cost analysis from 5RMK Inc completed in Jan. 2010. * Includes 35% construction contingency on tunnel (25% on non-tunnel) and 18% for engineering/project management. Preliminary Subject to Revision
Timeline for Delta Solution 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 Conservation Plan Final Working Draft Public Draft Enviro Docs Final Public Draft Permits Bio Op Restoration Near-Term Habitat Restoration Implementation Engineering Preliminary Final Design Operational Procurement Procure Equipment Construction Land Acquisition & Construction Admin Draft – Apr 2012; Public Draft – May 2012; Final EIR/EIS – Dec 2012 Preliminary Subject to Revision
Are you planning to increase pumping? Early 1990’s Current Strategy
Is Southern California taking all the water? In-Delta Consumptive Use4% CVP-SWP Exports17% UpstreamConsumptive Use31% Pacific Ocean48% Source: Governor’s Delta Vision Report (Estimated total annual runoff 32.85 maf)
Is Southern California taking all the water? UpstreamUrban Use2% In-Delta Consumptive Use4% MWD4% CVP-SWP Exports17% UpstreamConsumptive Use31% Pacific Ocean48% Source: Governor’s Delta Vision Report (Estimated total annual runoff 32.85 maf)
Why can’t you replace Delta supplies with seawater desalination? • 18-36 new desalination plants (1 MAF) • Every 4-8 miles from LA to San Diego • 600 MW gross power requirement • Cost – $1,300 to $2,000 per acre-foot
Is the Delta solution too expensive? • Affordability based on tunnel option • $12.7 billion • MWD share ~$3.4 billion (25 percent of total) • 15,000 cfs capacity • 1,560,000 acre-foot average SWP yield for Metropolitan
What is the Cost of Other Supplies? $1,040 -2,300/AF $1,600 -2,000/AF $960 -2,000/AF $300 -1,300/AF $500 -800/AF* • MWD estimates • Restored Delta – Incremental cost of tunnel not melded with overall SWP supply; includes $200/af energy costs
What is the Capital Cost of Other Supply Improvement Projects? * Capital Cost/AF = Total Capital Cost / Annual Deliveries
What is the Per-Capita Cost of Other Supply Improvement Projects? * Per-Capita Cost = Total Capital Cost / Population Served
Major Project Cost vs. Assessed Valuation • State Water Project • 1960 • $1.75 billion bond (MWD share ~50%) • Assessed Valuation: $6 billion • Ratio: 6% • Delta Solution • $3.4 billion (assumed MWD share) • Assessed Valuation: $2 trillion • Ratio: 0.2% • Colorado River Aqueduct • 1931 • $220 million bond • Assessed Valuation: $2 billion • Ratio: 10%
How do we get to a solution? • Legislative/Congressional Support • Regulatory assurances • Sound science & adaptive management • Effective governance structure • Local benefits
Why are you an optimist? “For myself I am an optimist – it does not seem to be much use being anything else.” - Winston Churchill “If you’re going through hell, keep going.” - Winston Churchill