Wiscasset WWTF
Wiscasset, ME · Lincoln County · Publicly Owned Treatment Works
- Average flow
- 0.13 MGD
- Design flow
- 0.62 MGD
- NPDES permit
- ME0100757
- Expired
- Permit expires
- August 2025
- Population served
- 2,247
- CWNS 2022
Wiscasset WWTF is a publicly owned wastewater treatment works in Wiscasset, Lincoln County, Maine treating an average of 0.13 million gallons per day against a permitted design capacity of 0.62 MGD, serving about 2,247 residents. Treatment on site includes biosolids mechanical dewatering, dechlorination, disinfection, chlorine/ chloramine, primary clarification or sedimentation, screening. It discharges under NPDES permit ME0100757 (expired), which expires in August 2025, with 10 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Biosolids Mechanical Dewatering
unit processDechlorination
unit processDisinfection, chlorine/ chloramine
unit processPrimary Clarification or Sedimentation
unit processScreening
unit processUnlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 10
- Effluent violations
- 10
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Wiscasset WWTF.
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Nearby wastewater treatment plants in Maine
Nobleboro · 8 mi away
0.002 MGD
Richmond · 9 mi away
0.09 MGD
Boothbay Harbor · 10 mi away
0.0019 MGD
Lisbon · 19 mi away
0.37 MGD
Warren · 23 mi away
0.07 MGD
Sabattus · 23 mi away
0.06 MGD
Thomaston · 24 mi away
0.003 MGD
Freeport · 25 mi away
0.23 MGD
Wiscasset WWTF: 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 September 24, 2025.