Los Coyotes Water Reclamation Plant
Cerritos, CA · Los Angeles County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 37.5 MGD
- NPDES permit
- CA0054011
- Effective
- Permit expires
- January 2027
- Population served
- 44,449
- CWNS 2022
Los Coyotes Water Reclamation Plant is a publicly owned wastewater treatment works in Cerritos, Los Angeles County, California, serving about 44,449 residents. Treatment on site includes aerated lagoons. It discharges under NPDES permit CA0054011 (effective), which expires in January 2027, with 2 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Aerated lagoons
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Compliance snapshot (last 3 years)
- Total violations
- 2
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Los Coyotes Water Reclamation Plant, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Los Coyotes Water Reclamation Plant, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in California
Long Beach · 6 mi away
4.44 MGD
South El Monte · 11 mi away
10.24 MGD
Carson · 12 mi away
162.85 MGD
Whittier · 12 mi away
28.38 MGD
San Pedro · 13 mi away
9.8 MGD
Fountain Valley · 16 mi away
77.37 MGD
Playa Del Rey · 19 mi away
214 MGD
Los Angeles · 20 mi away
5.9 MGD
Los Coyotes Water Reclamation Plant: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed September 11, 2026; facility record last updated September 1, 2025.