![]() Proposition 1 passed in November 2014 will give $7.5 billion to water projects. The other proposal is the Sites Reservoir in Sacramento Valley which would hold 1.8 million acre-feet of water, which could supply 470,000 to 640,000 new acre-feet of water a year. Delta farmers say it is cheaper to strengthen the dikes, and that they are earthquake safe. The cost of that is estimated to be $25 billion to $30 billion. Tunnels under the Delta would provide safety against Delta dike ruptures causing earthquakes. That would provide 1 million acre-feet mostly to the Central Valley, and also to Silicon Valley and Southern California. One proposals for what could be built to add more water is the Peripheral Canal to take water from the Sacramento River, bypassing the Delta. The State has just dropped supplying water to junior water rights users. It usually delivers about 7 million acre-feet per year, mostly for Agriculture. This is a federally funded project to deliver water to the Central Valley. According to one source, LA now uses 50% MWD water, and only gets 13% from the Aqueduct. It used to supply 480,000 acre-feet/year. The Lower Owens River is now rewatered, and 40-50% of the water is used for ecological resources. It was developed by William Mulholland, and is run by the LADWP. ![]() It takes water from the Owens Valley and Owens River. This can supply half of the water for Los Angeles. California gets 27% of the output of the Colorado River. It carries 1.2 million acre-feet per year. It is managed by the Metropolitan Water District. It runs 242 miles from Lake Havasu to the east side of the Santa Ana mountains. The Colorado River Aqueduct was built in the depression era to bring Colorado River water to the Southern California area. The California aqueduct carries between 1-3.7 million acre-feet per year southward.įrom the aqueduct the West Branch goes through Pyramid and Castaic lakes. The energy used to do this is 11,500 giga watt hour (GWh) of which 6,500 GWh are supplied by the project. In a normal year it has 2.4 million acre-feet per year of water delivery. The SWP has 5.75 million acre-feet of storage. This section is taken from the Wikipedia article on the CSWP or SWP, but specialized to the path of the water to Southern California.
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