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Wastewater Treatment Facilities
Los Angeles County
The Joint Water Pollution Control Plant in Carson is one of the largest wastewater treatment plants in the world.

Eleven Los Angeles County wastewater treatment plants treat more than 500 million gallons a day, 150 million gallons of which are available for recycling.

Facility Location Wastewater treated per day (gallons) Population Served
Joint Water Pollution Control Plant 24501 S. Figueroa Street, Carson 350 million Approx. 3.5 million
La Canada Water Reclamation Plant 533 Meadowview Drive, La Canada Flintridge 200,000 425 homes
Lancaster Water Reclamation Plant 1865 West Avenue "D", Lancaster 16 million Approx. 160,000
Long Beach Water Reclamation Plant 7400 E. Willow Street, Long Beach 25 million Approx. 250,000
Los Coyotes Water Reclamation Plant 16515 Piuma Avenue, Cerritos 37 million Approx. 370,000
Palmdale Water Reclamation Plant 39300 30th Street East, Palmdale 15 million Approx. 150,000
Pomona Water Reclamation Plant 295 Humane Way, Pomona 13 million Approx. 130,000
San Jose Creek Water Reclamation Plant 1965 Workman Mill Road, unincorporated area adjacent to the City of Whittier 100 million Approx. One million
Saugus Water Reclamation Plant 6200 Springbrook Avenue, Saugus 7 million Approx. 70,000
Valencia Water Reclamation Plant 28185 The Old Road, Valencia 11 million Approx. 110,000
Whittier Narrows Water Reclamation Plant 301 N. Rosemead Blvd., El Monte 15 million Approx. 150,000

Source: Los Angeles County Sanitation Districts


The Los Coyotes Water Reclamation Plant in Cerritos is largely occupied by the Iron Wood Nine Golf Course.

In 1962, the Whittier Narrows Water Reclamation Plant became the first reclamation plant to be built by the L.A. County Sanitation Districts.


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