Corning Wastewater Treatment Plant
Corning, CA · Tehama County · Publicly Owned Treatment Works
- Average flow
- 0.63 MGD
- Design flow
- 1.4 MGD
- NPDES permit
- CA0004995
- Effective
- Permit expires
- May 2027
- Population served
- 7,524
- CWNS 2022
Corning Wastewater Treatment Plant is a publicly owned wastewater treatment works in Corning, Tehama County, California treating an average of 0.63 million gallons per day against a permitted design capacity of 1.4 MGD, serving about 7,524 residents. Treatment on site includes clarifiers, aerated lagoons, uncovered lagoons, carrousels / oxidation ditches. It discharges under NPDES permit CA0004995 (effective), which expires in May 2027, with 681 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
Unlock
Aerated lagoons
Unlock
Uncovered lagoons
Unlock
Carrousels / oxidation ditches
Unlock
Unlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 681
- Effluent violations
- 10
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Corning Wastewater Treatment Plant, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Corning Wastewater Treatment Plant, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in California
Red Bluff · 18 mi away
—
Willows · 29 mi away
—
Cottonwood · 34 mi away
0.29 MGD
Anderson · 39 mi away
1.11 MGD
Mineral · 39 mi away
—
Anderson · 40 mi away
2.32 MGD
Oroville · 41 mi away
3.4 MGD
Anderson · 43 mi away
5.67 MGD
Corning 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 March 19, 2025.