Coastal Treatment Plant

A water treatment facility with flowing water and a mountainous backdrop under a blue sky with fluffy clouds.

Location: Laguna Niguel
Total Capacity: 6.7 million gallons per day
Average Capacity Used Today: 2.9 million gallons per day
Year Built: 1983
Recycled Water Production: Up to 1.5 million gallons per day

Interesting Fact: The Coastal Treatment Plant shares a boundary with the County of Orange Aliso & Wood Canyon Wilderness Park. SOCWA has a responsibility to guard this natural environment and is taking steps to ensure SOCWA’s co-existence near the park is protective of the natural environment.

Treatment Processes

Screening
Grit removal
Primary clarification
Secondary treatment
Secondary clarification
Anaerobic digestion
Thickening

Address: 28303 Alicia Parkway, Laguna Niguel, CA 92677

Flowchart of a coastal treatment plant process: influent filtration, sedimentation tanks, aeration, disinfection, and recycled water for irrigation.