Redding Stillwater Wastewater Treatment Plant
Anderson, CA · Shasta County · Publicly Owned Treatment Works
- Average flow
- 2.32 MGD
- Design flow
- 14.4 MGD
- NPDES permit
- CA0082589
- Effective
- Permit expires
- May 2028
- Population served
- 21,375
- CWNS 2022
Redding Stillwater Wastewater Treatment Plant is a publicly owned wastewater treatment works in Anderson, Shasta County, California treating an average of 2.32 million gallons per day against a permitted design capacity of 14.4 MGD, serving about 21,375 residents. Treatment on site includes clarifiers, uncovered lagoons. It discharges under NPDES permit CA0082589 (effective), which expires in May 2028, with 6 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
- 6
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Redding Stillwater Wastewater Treatment Plant.
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Nearby wastewater treatment plants in California
Anderson · 1 mi away
1.11 MGD
Anderson · 5 mi away
5.67 MGD
Cottonwood · 6 mi away
0.29 MGD
Shasta Lake · 14 mi away
0.43 MGD
Red Bluff · 22 mi away
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Mineral · 36 mi away
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Corning · 40 mi away
0.63 MGD
Dunsmuir · 49 mi away
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Redding Stillwater Wastewater Treatment 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 May 10, 2025.