California Water Service

California Water Service, commonly known as Cal Water, is an American public utility company providing drinking water and wastewater services to a number of regions within the state of California. It was founded in 1926 and is based in San Jose, California, and provides service across multiple local districts, reaching more than 484,900 customers.[1]

California Water Service
TypeSubsidiary
IndustryUtilities
Water and wastewater
Founded1926
Headquarters
San Jose, California
,
United States
Area served
California
ProductsWater
ParentCalifornia Water Service Group
Websitecalwater.com

In 1997, California Water Service formed a new parent holding company, California Water Service Group, in order to expand its service coverage into other regions and states. Shortly thereafter it made a major expansion into Southern California with the purchase of Dominguez Services Corp. for $53 million, incorporating its subsidiaries Antelope Valley Water Co. and Kern River Valley Water Co. into Cal Water's service districts.[2]

Districts

Cal Water service areas are broken down into 23 districts:[3]

  • Antelope Valley
  • Bakersfield
  • Bayshore
  • Bear Gulch
  • Chico
  • Dixon
  • East Los Angeles
  • Kern River Valley
  • King City
  • Livermore
  • Los Altos
  • Marysville
  • Oroville
  • Rancho Dominguez
  • Redwood Valley
  • Salinas
  • Selma
  • Stockton
  • Tesoro Viejo
  • Travis
  • Visalia
  • Westlake
  • Willows

Water Supplies

Cal Water districts employ a wide range of water sources, including surface water diversion,[4] groundwater pumping, and purchase from other water suppliers such as the San Francisco Public Utilities Commission's Hetch Hetchy Aqueduct.

In 2019, a plan for Cal Water's Chico District to purchase water supply from Paradise Irrigation District in the aftermath of the 2018 Camp Fire was cancelled in the study phase.[5]

Treatment Facilities

Cal Water's Willows District installed in 2016 a treatment system to reduce hexavalent chromium in the local water supply using the first strong-base ion exchange treatment system of its type in the United States.[6]

References
  1. "Company Information - Cal Water". Retrieved 7 August 2020.
  2. Delevett, Peter (1998-11-29). "Water utility companies merge, form industry powerhouse". Silicon Valley Business Journal. Retrieved 2020-08-07.
  3. "District Phone Numbers - Cal Water". Retrieved 7 August 2020.
  4. Gulker, Linda Hubbard (2013-05-07). "Bear Gulch Reservoir hides in plain sight in Atherton, providing water for local residents". InMenlo. Retrieved 2020-08-07.
  5. Schoonover, Steve (2019-11-05). "Paradise-Chico water pipe study killed". Chico Enterprise-Record. Retrieved 2020-08-07.
  6. "Cal Water Completes Final Chromium-6 Treatment Plant". Water & Wastes Digest. 2016-10-05. Retrieved 2020-08-07.
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