Warren Wastewater Treatment Facility
442 Cushing Road, Warren, ME 04864 · Knox County · Publicly Owned Treatment Works
- Average flow
- 0.14 MGD
- Design flow
- 0.32 MGD
- NPDES permit
- ME0102253
- Effective
- Permit expires
- March 2030
- Population served
- 1,630
- CWNS 2022
Warren Wastewater Treatment Facility is a publicly owned wastewater treatment works in Warren, Knox County, Maine treating an average of 0.14 million gallons per day against a permitted design capacity of 0.32 MGD, serving about 1,630 residents. It discharges under NPDES permit ME0102253 (effective), which expires in March 2030, with 0 recorded violations in the last three years.
Treatment technology
5 treatment structures and unit processes identified at Warren Wastewater Treatment Facility.
Available with a free Klarifi account
See the full treatment train at Warren Wastewater Treatment Facility: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Warren Wastewater Treatment Facility.
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Nearby wastewater treatment plants in Maine
Thomaston · 1 mi away
0.01 MGD
Rockland · 6 mi away
0.1 MGD
Camden · 12 mi away
0.67 MGD
Nobleboro · 15 mi away
0.0061 MGD
North Haven · 18 mi away
0.01 MGD
North Haven · 19 mi away
0.00072 MGD
Vinalhaven · 19 mi away
0.01 MGD
Islesboro · 20 mi away
0.02 MGD
Warren Wastewater Treatment Facility: 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 October 26, 2026; facility record last updated February 1, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Equalization tank · Centrate · all terms