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<br />o Implementing urban waste water reuse and <br />agricultural drainage and contaminated <br />groundwater recovery programs (e.g. Imperial <br />Irrigation District's Tailwater Recovery <br />Demonstration Pro~ram: seawater barrier <br />maintenance using reclaimed water: treated <br />urban effluent used for irrigation, industrial <br />uses, and groundwater replenishment: and <br />Metropolitan's' program for brackish and <br />contaminated groundwater recovery). <br />o Implementing seepage recovery programs (All- <br />American and East Highline Canals) <br />o Concrete lining earthen canals and laterals to <br />reduce seepage. (e.g. 49 miles of the <br />Coachella Branch of the All-American canal, <br />and numerous miles of canals and laterals <br />within the irrigation districts) <br />o Constructing regulating reservoirs to reduce <br />spills into the drainage systems (e. g. <br />construction of six reservoirs in Imperial <br />Irrigation District's service area). <br /> <br />Current water supply augmentation and demand management <br />opportuni ties continue to build on past accomplishments. <br />Metropolitan, Coachella, and the Desert Water Agency stored over <br />550,000 acre-feet of water through 1987 in the Coachella <br />groundwater basin. Metropolitan and the Imperial Irrigation <br />District are cooperatively implementing Phase I of a water <br />conservation program in the Imperial Valley that will conserve <br />106,110 acre-feet by 1995 and thereafter. Opportunities as set <br />forth in Metropolitan's November 1990 Urban Water Management Plan <br />are being pursued:. <br /> <br />By the year 2010, it is envisioned that the Imperial- <br />Metropolitan Water Conservation Program - Phase II will yield <br />150,000 acre-feet, the All-American and Coachella Canal Lining will <br />yield 100,000 acre-feet, Agricultural Land Fallowing within the <br />irrigation districts in Southern California will yield 100,000 <br />acre-feet, and additional Water Conservation Programs within the <br />irrigation districts will yield 100,000 acre-feet. Also, waste <br />water reclamation within Metropolitan's service area may produce an <br />additional 230,000 acre-feet, the contaminated and brackish <br />groundwater recovery program may produce an additional 70,000 acre- <br />feet, and State Water Project improvements and water transfers <br />550,000 acre-feet. Existing conservation and implementation of <br />best management water conservation practices should reduce demand <br />by 721,000 acre-feet in Metropolitan's service area by 2010. It <br />should be recognized that there are legal, institutional, and <br />environmental constraints that may . delay or alter the <br />implementation of the foregoing opportunities. Nonetheless, <br />California is committed to vigorously pursuing these programs and <br />implementing each measure as soon as physically practicable and <br /> <br />9 <br />