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Three Valleys Municipal Water District

The ongoing drought in California has strained imported water supplies, resulting in historically low snowpack levels and major reservoirs below 50% capacity. In May 2014, Northern Sierra snowpack was at 7%, with Central and Southern Sierra at 24% and 18%, respectively. Groundwater levels vary significantly, with conservation efforts in Southern California aiding storage. Despite these efforts, public trust in government strategies remains low, and the potential impact of projected "El Niño" conditions on precipitation is uncertain.

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Three Valleys Municipal Water District

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Presentation Transcript

  1. Three Valleys Municipal Water District California’s Drought 2014

  2. Where does the rain normally fall? `

  3. Imported water supplies are stressed due to years of drought conditions. Northern Sierra 7% Statewide 16% Oroville 50% 1.7 MAF Central Sierra 24% Southern Sierra 18% San Luis 43% 869 TAF DVL 69% 558 TAF Statewide snowpack down to 16%,while major reservoirs stand at less than 50% filled. (05/27/2014) LA Castaic Lake 64% 208 TAF SD

  4. Difference in Sierra snowpack Jan 2013 and Jan 2014

  5. Green indicates groundwater levels that have increased. Red, orange, yellow are groundwater levels that have decreased.

  6. Meeting Regional Needs Sources of Water for So. California Sierra Mountains LA Aqueduct Bay/Delta Colorado River Aqueduct State Water Project Local Groundwater and Recycling Conservation

  7. All major state reservoirs in No. Calif. are well below capacity

  8. For Southern California, investments in storage, capture, and efficiency have helped our supplies. Diamond Valley Lake, So. California’s newest reservoir, holds 810 TAF

  9. Southern California’s Imported Water Demands

  10. Conservation reduces storage depletion

  11. Communicating the Drought • People are distrustful of Government • People realize that California has drought events – they also think they are “overblown” to justify rate increases • People think they are conserving, and they ARE, we have reached a point where a few gallons helps the situation but won’t SOLVE the long-term problem • The much touted upcoming “El Niño” may not generate usable precipitation ?

  12. So we hope for this…

  13. …but plan for this

  14. Richard W. Hansen, P.E. General Manager www.threevalleys.com

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