San Jose Creek Water Reclamation Plant
Whittier, CA · Los Angeles County · Publicly Owned Treatment Works
- Average flow
- 28.38 MGD
- Design flow
- 100 MGD
- NPDES permit
- CA0053911
- Effective
- Permit expires
- November 2026
- Population served
- 936,523
- CWNS 2022
San Jose Creek Water Reclamation Plant is a publicly owned wastewater treatment works in Whittier, Los Angeles County, California treating an average of 28.38 million gallons per day against a permitted design capacity of 100 MGD, serving about 936,523 residents. It discharges under NPDES permit CA0053911 (effective), which expires in November 2026, with 26 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 26
- Effluent violations
- 18
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at San Jose Creek Water Reclamation Plant.
No verified contacts on file yet
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Nearby wastewater treatment plants in California
South El Monte · 3 mi away
10.24 MGD
Cerritos · 12 mi away
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Pomona · 13 mi away
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Los Angeles · 16 mi away
5.9 MGD
Long Beach · 17 mi away
4.44 MGD
Burbank · 20 mi away
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Chino · 21 mi away
6.4 MGD
Carson · 22 mi away
162.85 MGD
San Jose Creek 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 June 29, 2025.