Old Town Wastewater Treatment Facility
Old Town, ME · Penobscot County · Publicly Owned Treatment Works
- Average flow
- 0.63 MGD
- Design flow
- 3.5 MGD
- NPDES permit
- ME0100471
- Effective
- Permit expires
- September 2029
- Population served
- 9,667
- CWNS 2022
Old Town Wastewater Treatment Facility is a publicly owned wastewater treatment works in Old Town, Penobscot County, Maine treating an average of 0.63 million gallons per day against a permitted design capacity of 3.5 MGD, serving about 9,667 residents. Treatment on site includes biogas balloons, attached growth, aerobic, biosolids mechanical dewatering, disinfection, chlorine/ chloramine, primary clarification or sedimentation and other unit processes. It discharges under NPDES permit ME0100471 (effective), which expires in September 2029, with 2 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Biogas balloons
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Attached Growth, Aerobic
unit processBiosolids Mechanical Dewatering
unit processDisinfection, chlorine/ chloramine
unit processPrimary Clarification or Sedimentation
unit processScreening
unit processUnlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 2
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Old Town Wastewater Treatment Facility.
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Nearby wastewater treatment plants in Maine
Old Town · 2 mi away
0.04 MGD
Veazie · 8 mi away
0.07 MGD
Bangor · 12 mi away
4.38 MGD
Howland · 20 mi away
—
Bucksport · 26 mi away
0.23 MGD
Milo · 26 mi away
0.08 MGD
Dexter · 30 mi away
—
Newport · 32 mi away
0.14 MGD
Old Town 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.