New Middletown - Springfield Twp WWTP
New Middletown, OH · Mahoning County · Publicly Owned Treatment Works
- Average flow
- 0.28 MGD
- Design flow
- 0.55 MGD
- NPDES permit
- OH0037273
- Effective
- Permit expires
- December 2026
- Population served
- 1,494
- CWNS 2022
New Middletown - Springfield Twp WWTP is a publicly owned wastewater treatment works in New Middletown, Mahoning County, Ohio treating an average of 0.28 million gallons per day against a permitted design capacity of 0.55 MGD, serving about 1,494 residents. Treatment on site includes aerated lagoons. It discharges under NPDES permit OH0037273 (effective), which expires in December 2026, with 8 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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Compliance snapshot (last 3 years)
- Total violations
- 8
- Effluent violations
- 8
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for New Middletown - Springfield Twp WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at New Middletown - Springfield Twp WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Ohio
Lowellville · 6 mi away
0.26 MGD
Struthers · 7 mi away
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Youngstown · 7 mi away
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Campbell · 8 mi away
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Columbiana · 8 mi away
0.66 MGD
New Waterford · 8 mi away
0.11 MGD
East Palestine · 9 mi away
0.41 MGD
Youngstown · 10 mi away
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New Middletown - Springfield Twp 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 November 29, 2025.