Davis Water Pollution Control Plant
Davis, CA · Yolo County · Publicly Owned Treatment Works
- Average flow
- 3.2 MGD
- Design flow
- 7.5 MGD
- NPDES permit
- CA0079049
- Effective
- Permit expires
- July 2030
- Population served
- 62,764
- CWNS 2022
Davis Water Pollution Control Plant is a publicly owned wastewater treatment works in Davis, Yolo County, California treating an average of 3.2 million gallons per day against a permitted design capacity of 7.5 MGD, serving about 62,764 residents. Treatment on site includes clarifiers, uncovered lagoons, biogas silos. It discharges under NPDES permit CA0079049 (effective), which expires in July 2030, with 41 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 41
- Effluent violations
- 8
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Davis Water Pollution Control Plant, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Davis Water Pollution Control Plant, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in California
Woodland · 5 mi away
2.61 MGD
Davis · 7 mi away
1.47 MGD
Elk Grove · 15 mi away
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Roseville · 21 mi away
—
Roseville · 21 mi away
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Lincoln · 25 mi away
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Rio Vista · 28 mi away
0.32 MGD
Rio Vista · 31 mi away
0.5 MGD
Davis Water Pollution Control 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 March 19, 2025.