Vinalhaven WWTF
Vinalhaven, ME · Knox County · Publicly Owned Treatment Works
- Average flow
- 0.02 MGD
- Design flow
- 0.13 MGD
- NPDES permit
- ME0102491
- Administratively continued
- Permit expires
- April 2023
- Population served
- 799
- CWNS 2022
Vinalhaven WWTF is a publicly owned wastewater treatment works in Vinalhaven, Knox County, Maine treating an average of 0.02 million gallons per day against a permitted design capacity of 0.13 MGD, serving about 799 residents. It discharges under NPDES permit ME0102491 (administratively continued), which expires in April 2023, with 5 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 5
- Effluent violations
- 5
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Vinalhaven WWTF.
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Nearby wastewater treatment plants in Maine
North Haven · 6 mi away
0.0046 MGD
Islesboro · 15 mi away
0.0024 MGD
Camden · 16 mi away
0.32 MGD
Thomaston · 18 mi away
0.003 MGD
Warren · 19 mi away
0.07 MGD
Castine · 24 mi away
0.03 MGD
Belfast · 28 mi away
0.42 MGD
Blue Hill · 28 mi away
0.04 MGD
Vinalhaven 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 February 9, 2025.