Anson Madison Wastewater Treatment Facility
Madison, ME · Somerset County · Publicly Owned Treatment Works
- Average flow
- 0.6 MGD
- Design flow
- 7.84 MGD
- NPDES permit
- ME0101389
- Effective
- Permit expires
- April 2031
- Population served
- 4,620
- CWNS 2022
Anson Madison Wastewater Treatment Facility is a publicly owned wastewater treatment works in Madison, Somerset County, Maine treating an average of 0.6 million gallons per day against a permitted design capacity of 7.84 MGD, serving about 4,620 residents. Treatment on site includes clarifiers, aerated lagoons, uncovered lagoons, biological treatment, other, biosolids mechanical dewatering and other unit processes. It discharges under NPDES permit ME0101389 (effective), which expires in April 2031, with 2 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Aerated lagoons
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Uncovered lagoons
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Biological Treatment, Other
unit processBiosolids Mechanical Dewatering
unit processLagoon, Aerobic
unit processPrimary Clarification or Sedimentation
unit processScreening
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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
1 verified contact for Anson Madison Wastewater Treatment Facility, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Anson Madison Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Maine
Skowhegan · 9 mi away
0.31 MGD
Bingham · 17 mi away
0.12 MGD
Hartland · 22 mi away
0.08 MGD
Clinton · 23 mi away
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Pittsfield · 25 mi away
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Livermore Falls · 27 mi away
0.27 MGD
Unity · 28 mi away
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Newport · 30 mi away
0.14 MGD
Anson Madison 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 November 27, 2025.