Butler WWTP
223 Grant St, Butler, OH 44822 · Richland County · Publicly Owned Treatment Works
- Average flow
- 0.38 MGD
- Design flow
- 0.55 MGD
- NPDES permit
- OH0021431
- Effective
- Permit expires
- October 2029
- Population served
- 941
- CWNS 2022
Butler WWTP is a publicly owned wastewater treatment works in Butler, Richland County, Ohio treating an average of 0.38 million gallons per day against a permitted design capacity of 0.55 MGD, serving about 941 residents. It discharges under NPDES permit OH0021431 (effective), which expires in October 2029, with 55 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Butler WWTP.
Available with a free Klarifi account
See the full treatment train at Butler WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 55
- Effluent violations
- 51
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Butler WWTP.
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Nearby wastewater treatment plants in Ohio
Perrysville · 5 mi away
0.00091 MGD
Ashland · 5 mi away
0.0031 MGD
Perrysville · 6 mi away
0.002 MGD
Lucas · 8 mi away
0.13 MGD
Perrysville · 8 mi away
0.05 MGD
Loudonville · 9 mi away
0.28 MGD
Mount Vernon · 10 mi away
0.02 MGD
Fredericktown · 10 mi away
0.21 MGD
Butler 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 October 26, 2026; facility record last updated April 6, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Centrate · Ozonation · all terms