Yarmouth Wastewater Treatiment Facility
Yarmouth, ME · Cumberland County · Publicly Owned Treatment Works
- Average flow
- 0.44 MGD
- Design flow
- 1.31 MGD
- NPDES permit
- ME0100765
- Administratively continued
- Permit expires
- August 2022
- Population served
- 5,770
- CWNS 2022
Yarmouth Wastewater Treatiment Facility is a publicly owned wastewater treatment works in Yarmouth, Cumberland County, Maine treating an average of 0.44 million gallons per day against a permitted design capacity of 1.31 MGD, serving about 5,770 residents. Treatment on site includes carrousels / oxidation ditches, biogas balloons, dechlorination, disinfection, other chemical, primary clarification or sedimentation and other unit processes. It discharges under NPDES permit ME0100765 (administratively continued), which expires in August 2022, with 3 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Carrousels / oxidation ditches
Unlock
Biogas balloons
Unlock
Dechlorination
unit processDisinfection, other chemical
unit processPrimary Clarification or Sedimentation
unit processScreening
unit processSuspended Growth, Aerobic
unit processUnlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 3
- Effluent violations
- 3
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Yarmouth Wastewater Treatiment Facility.
No verified contacts on file yet
Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.
Nearby wastewater treatment plants in Maine
Yarmouth · 2 mi away
0.0032 MGD
Freeport · 4 mi away
0.23 MGD
Falmouth · 6 mi away
0.7 MGD
Portland · 10 mi away
0.05 MGD
Westbrook · 11 mi away
2.5 MGD
Cape Elizabeth · 15 mi away
0.14 MGD
Lisbon · 15 mi away
0.37 MGD
Sabattus · 22 mi away
0.06 MGD
Yarmouth Wastewater Treatiment 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 February 3, 2025.