Coachella Sd WWTP
Coachella, CA · Riverside County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 4.5 MGD
- NPDES permit
- CA0104493
- Expired
- Permit expires
- June 2025
- Population served
- 68,400
- CWNS 2022
Coachella Sd WWTP is a publicly owned wastewater treatment works in Coachella, Riverside County, California, serving about 68,400 residents. Treatment on site includes clarifiers, uncovered lagoons, carrousels / oxidation ditches. It discharges under NPDES permit CA0104493 (expired), which expires in June 2025, with 3 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Uncovered lagoons
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Carrousels / oxidation ditches
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Compliance snapshot (last 3 years)
- Total violations
- 3
- Effluent violations
- 3
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Coachella Sd WWTP.
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Nearby wastewater treatment plants in California
Thermal · 4 mi away
4.93 MGD
Indio · 5 mi away
—
Niland · 46 mi away
0.92 MGD
Calipatria · 49 mi away
0.7 MGD
Westmorland · 52 mi away
0.2 MGD
Beaumont · 52 mi away
3.54 MGD
Brawley · 57 mi away
—
Yucaipa · 59 mi away
3.87 MGD
Coachella Sd WWTP: 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 March 26, 2025.