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San Gabriel Valley Water Forum August 28, 2012

San Gabriel Valley’s Water Supply A Plan for the Future. San Gabriel Valley Water Forum August 28, 2012. Southern California’s water supply… we are dependent on a very large system beyond our control. Sierra Mtns. LA Aqueduct. Delta. Colorado River Aqueduct Supplies.

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San Gabriel Valley Water Forum August 28, 2012

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  1. San Gabriel Valley’s Water Supply A Plan for the Future San Gabriel Valley Water Forum August 28, 2012

  2. Southern California’s water supply… we are dependent on a very large system beyond our control Sierra Mtns LA Aqueduct Delta Colorado River Aqueduct Supplies State Water Project Supplies Conservation Local Groundwater and Recycling

  3. The Colorado River Lake Mead

  4. Sacramento-San Joaquin Bay Delta…difficult and expensive to fix but absolutely necessary Sacramento Sac River Stockton SWP Pumps SJ River CVP Pumps 4

  5. Our greatest resource…the Upper Area of the San Gabriel River Watershed

  6. Recent trends in the health of the groundwater supply we depend upon…

  7. Our water supply in the year 2035 if we do nothing more… Reliance on imported water will be33% By 2035 Today Firm GW & Surface Water Recycled Water Conservation New Stormwater Capture Water Transfers & Storage MWD Water Potential MWD Shortage

  8. Single Family Monthly Water Rate Dollars per month for 15 hundred cubic feet (HCF) 1 HCF = 100 cubic feet = 748 gallons of water 15 HCF: average monthly water consumption for single family residential

  9. Cost of Groundwater Replenishment (imported water dollars per acre-foot)

  10. What is an Integrated Resources Plan? … a balanced portfolio of reliable water supplies taking into account, cost, risk, water quality, the environment, climate change and stakeholder input.

  11. Demand and Supply in 2035 … under a repeat of 2009 drought with no investments 250,000 225,000 200,000 Expected to occur1 in 10 years Shortage33,000 AF (15%) 175,000 150,000 125,000 Acre-Feet Allocated MWD Firm Supply 100,000 Existing Recycled Water 75,000 Surface Water (dry year) 50,000 Groundwater w/o 25,000 replenishment 0 Demands Existing Supplies

  12. Integrated Resources Plan Objectives

  13. Stakeholder Objective Weights

  14. How do the different water supply options compare? – Strong benefit – Moderate benefit – Little to no benefit

  15. Comparing Status Quo with Preferred Alternative Supply Portfolio in 2035 Reliance on MWD Water is17% Reliance on MWD Water is33% Status Quo Preferred Alternative Firm GW & Surface Water Recycled Water Conservation New Stormwater Capture Water Transfers & Storage MWD Water Potential MWD Shortage

  16. The Future is about balancing risk factors and opportunities …we have many opportunities.

  17. Questions Shane Chapman General Manager Upper District Shane@usgvmwd.org

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