![]() ![]() MWD delivers this “Exchange Water” via the MWD owned and operated Colorado River Aqueduct to the turnout on the Whitewater River located north of Interstate 10 in the western Coachella Valley. Instead of a physical connection to receive water directly from the SWP, CVWD and Desert Water Agency (DWA) trade an equivalent amount of SWP water, “drop for drop”, with Metropolitan Water District of Southern California (MWD) for an equal amount of MWD’s Colorado River water allocation. A connector tunnel has been planned since the inception of the SWP, but has remained cost prohibitive. ![]() The Coachella Valley lacks a physical connection to SWP facilities through the surrounding mountains. The SWP terminates in Southern California at Lake Perris in Riverside County. The long-term average SWP allocation is about 60% of each contractor’s maximum contracted allocation. A wet or dry hydrologic year can increase or decrease the SWP allocation available in a given year. Actual availability of SWP water varies each year based on precipitation and snowpack runoff in Northern California, where the SWP reservoirs are located. ![]() Each contractor’s maximum annual allocation is defined in their individual water supply contract. On March 29, 1963, CVWD entered into a water supply contract with the State of California Department of Water Resources (DWR), becoming one of the SWP’s original State Water Contractors. The SWP delivers water to 29 urban and agricultural water suppliers in California, providing water to over 25 million California residents and 750,000 acres of irrigated farmland, directly supporting two-thirds of California’s $2.8 trillion economy. The SWP consists of 34 reservoirs and lakes, 701 miles of aqueducts, 5 power plants, and 24 pumping plants. The primary purpose of the SWP is to provide a water supply and delivery system to distribute water across California. The State Water Project (SWP) is the nation’s largest state-built water and power development conveyance system. ![]()
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