About West Basin
"To provide a safe and reliable supply of high quality water to the communities we serve."
Serving the Public
West Basin Municipal Water District (West Basin) is an innovative public agency that provides drinking and recycled water to its 185-square mile service area. West Basin purchases imported water from the Metropolitan Water District of Southern California (MWD) and wholesales the imported water to cities and private companies in southwest Los Angeles County. West Basin is a recognized leader in the production of recycled water and its conservation and education programs are fundamental to West Basin's diverse water portfolio. To protect our local groundwater basin from seawater intrusion, West Basin provides water for injection into the South Bay's seawater barriers.
Vote of the People
Faced with a declining water table and over-reliance on water from the West Coast Groundwater Basin in the 1940's, water authorities recommended the establishment of the West Basin Municipal Water District. In 1947, their recommendation was approved by the voters and West Basin was formed. A year later, West Basin became a member agency of MWD, a 37-member agency that provides the region with imported water. In the early 1990's West Basin added recycled water to its portfolio and, today, is active in conservation, education, and exploring ocean-water desalination to create more reliable, local sources of drinking water. West Basin is the sixth largest water district in California, serving a population of nearly one million people.
West Basin's service area uses 220,000 acre-feet of water annually. An acre-foot of water is approximately 326,000 gallons, enough to meet the water needs of two average families in and around their homes for one year.
View the West Basin service area map.