West Basin Municipal Water District
West Basin Municipal Water District is a wholesale water agency that provides imported drinking water to nearly one million people in coastal Los Angeles. West Basin treats water from the City of Los Angeles’ Hyperion Wastewater Treatment Plant and is the only wastewater recycling facility in the world that produces five different qualities of water supply (referred to as “designer waters”) for specific purposes. Those waters include irrigation water, cooling tower water, high-pressure boiler feed water, low-pressure boiler feed water and seawater intrusion and groundwater augmentation water.
A total of 90 percent of the water ends up in the groundwater augmentation water, which is the source of drinking water. The seawater intrusion barrier water protects approximately $200 million worth of local groundwater from seawater contamination. West Basin has approximately 120 miles of purple pipe distribution system, and 300 sites that use recycled water fit for their specific purpose.
As of August 2015, West Basin has produced more than 165 billion gallons of recycled water since it began operating in 1995. Ten percent of the plant’s power comes from solar panels on the facility’s reservoirs.