The Los Coyotes Water Reclamation Plant (WRP) is located at 16515 Piuma Avenue in the city of Cerritos and occupies 34 acres at the northwest junction of the San Gabriel River (605) and the Artesia (91) Freeways. Twenty of the 34 acres is occupied by the Iron Wood Nine Golf Course which is built on adjoining Districts' property. The plant was placed in operation on May 25, 1970 and, initially had a capacity of 12.5 million gallons per day and consisted of primary treatment and secondary treatment with activated sludge.

CURRENT OPERATION:
The Los Coyotes WRP provides primary, secondary and tertiary treatment for 37 million gallons of wastewater per day (see flow diagram below). The plant serves a population of approximately 370,000 people. Over 5 million gallons per day of the purified water is reused at over 200 reuse sites. Reuse includes landscape irrigation of schools, golf courses, parks, nurseries, and greenbelts; and industrial use at local companies for carpet dying and concrete mixing. Click on the diagram to read about the wastewater treatment and water reclamation process.