Willows WWTF
Willows, CA · Glenn County · Publicly Owned Treatment Works
- Average flow
- 0.72 MGD
- Design flow
- 1.2 MGD
- NPDES permit
- 3603267795
- EXP
- Permit expires
- November 2022
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 40
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Willows
| Project | Budget | Years |
|---|---|---|
| Annual Sewer Replacement Project | $2,698,000 | 2024–2027 |
| Wastewater Treatment Administration Bldg. | $500,000 | 2026–2027 |
| WWTP Upgrades | $302,000 | 2024–2027 |
| Lassen Street Sewer Pump Station Rehabilitation | $260,000 | 2024–2025 |
| WWTP - Clarifier Improvements | $200,000 | 2026–2027 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
Contacts for Willows WWTF are available in the Klarifi platform.
Unlock contacts for this facility
Names, validated emails and direct phone numbers for decision-makers at Willows WWTF — plus full compliance history and discharge data.
Try Klarifi freeNearby wastewater treatment plants in California
Colusa · 23 mi away
0.51 MGD
Corning · 29 mi away
0.62 MGD
Live Oak · 32 mi away
0.74 MGD
Oroville · 33 mi away
3.42 MGD
Yuba City · 41 mi away
5.3 MGD
Marysville · 43 mi away
7.02 MGD
Olivehurst · 46 mi away
1.79 MGD
Red Bluff · 46 mi away
1.03 MGD
Data sourced from public EPA / NPDES records and Klarifi analysis. Last updated November 2025.