Minster WWTP
Minster, OH · Auglaize County · Publicly Owned Treatment Works
- Average flow
- 1.52 MGD
- Design flow
- 2.5 MGD
- NPDES permit
- OH0026573
- Effective
- Permit expires
- October 2027
- Population served
- 3,046
- CWNS 2022
Minster WWTP is a publicly owned wastewater treatment works in Minster, Auglaize County, Ohio treating an average of 1.52 million gallons per day against a permitted design capacity of 2.5 MGD, serving about 3,046 residents. Treatment on site includes clarifiers, uncovered lagoons, carrousels / oxidation ditches, biogas balloons. It discharges under NPDES permit OH0026573 (effective), which expires in October 2027, with 18 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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Uncovered lagoons
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Carrousels / oxidation ditches
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Biogas balloons
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Compliance snapshot (last 3 years)
- Total violations
- 18
- Effluent violations
- 18
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Minster WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Minster WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Ohio
Minster · 1 mi away
0.27 MGD
New Bremen · 4 mi away
0.48 MGD
Wapakoneta · 5 mi away
0.0022 MGD
Chickasaw · 6 mi away
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New Knoxville · 9 mi away
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New Knoxville · 10 mi away
0.0014 MGD
Anna · 11 mi away
0.14 MGD
Celina · 11 mi away
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Minster WWTP: 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 24, 2025.