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Water Quality

About the District

      The Metropolitan Water District of Salt Lake & Sandy (MWDSLS) is a special service district formed in 1935 by the Salt Lake City 
Commission. It's primary function was to create a firm water supply for Salt Lake City. In 1990, Sandy City annexed into the
District. Currently the District provides wholesale water to Salt Lake City, Sandy City, and Jordan Valley Water Conservancy
District.
      The District is citizen-administered through a Board of Trustees comprised of seven individuals: five appointed by the Salt Lake 
City Council, and two appointed by the Sandy City Council. The General Manager of the District is Mike Wilson, who was appointed by the Board of Trustees in August of 2005.
     Brief History 
      The Salt Lake Aqueduct was completed in 1951, and transports water from Deer Creek Reservoir to the Little Cottonwood Water
Treatment Plant (LCWTP) which was constructed in 1960. Historical information on the Salt Lake Aqueduct can be found in the
"History of the Salt Lake Aqueduct."
      The LCWTP began operations in June of 1960 and treats water 24-hours a day, 7 days a week. The LCWTP has only been shut down 
for 1 day since its inception. Most construction and repair work has been completed while the LCWTP was in operation to insure a
continuous water supply for the District's customers. The LCWTP has a maximum capacity of 113 million-gallons-per-day (MGD)
and is the second largest water treatment plant in Utah.
      More historical information about water development in the Salt Lake Valley and a history of the District's origin are documented
in the publication called "100 Years of Water Development" ("100 Years of Water Development" high resolution).
      The District's main water supplies are Little Cottonwood Creek and Deer Creek Reservoir. Water 
      from Deer Creek Reservoir is transported through the Salt Lake Aqueduct, a gravity-fed pipeline 
      approximately 33 miles in length, to the Little Cottonwood Water Treatment Plant. Irrigation 
      water is provided in accordance with a contract implemented in 1958 between the District and 
      the Utah Lake Distributing Company. Utah Lake Water is reconveyed through the Jordan 
      Narrows Pumping Station, located near the point of the mountain, to meet irrigation needs. 
Creek
    Water Treatment 
      Little Cottonwood Creek 
      To obtain a better understanding of the water treatment process, please take our virtual tour.
 
 
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Site last updated 6/25/08