Washburn Wastewater Treatment Facility
Washburn, ME · Aroostook County · Publicly Owned Treatment Works
- Average flow
- 0.05 MGD
- Design flow
- 0.28 MGD
- NPDES permit
- ME0101028
- Effective
- Permit expires
- September 2029
- Population served
- 543
- CWNS 2022
Washburn Wastewater Treatment Facility is a publicly owned wastewater treatment works in Washburn, Aroostook County, Maine treating an average of 0.05 million gallons per day against a permitted design capacity of 0.28 MGD, serving about 543 residents. Treatment on site includes aerated lagoons, uncovered lagoons, biosolids drying, dechlorination, disinfection, chlorine/ chloramine and other unit processes. It discharges under NPDES permit ME0101028 (effective), which expires in September 2029, with 4 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Aerated lagoons
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Uncovered lagoons
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Biosolids Drying
unit processDechlorination
unit processDisinfection, chlorine/ chloramine
unit processLagoon, Aerobic
unit processScreening
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Compliance snapshot (last 3 years)
- Total violations
- 4
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Washburn Wastewater Treatment Facility.
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Nearby wastewater treatment plants in Maine
Fort Fairfield · 14 mi away
0.16 MGD
Ashland · 15 mi away
0.04 MGD
Wallagrass · 28 mi away
0.0012 MGD
Grand Isle · 36 mi away
0.0052 MGD
Frenchville · 38 mi away
0.04 MGD
Fort Kent · 40 mi away
0.15 MGD
Madawaska · 42 mi away
0.23 MGD
Danforth · 77 mi away
0.02 MGD
Washburn 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 September 11, 2026; facility record last updated April 3, 2025.