Waynesville Regional WWTP
Waynesville, OH · Warren County · Publicly Owned Treatment Works
- Average flow
- 0.44 MGD
- Design flow
- 0.71 MGD
- NPDES permit
- OH0020753
- Effective
- Permit expires
- March 2027
- Population served
- 7,122
- CWNS 2022
Waynesville Regional WWTP is a publicly owned wastewater treatment works in Waynesville, Warren County, Ohio treating an average of 0.44 million gallons per day against a permitted design capacity of 0.71 MGD, serving about 7,122 residents. Treatment on site includes clarifiers. It discharges under NPDES permit OH0020753 (effective), which expires in March 2027, with 25 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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Compliance snapshot (last 3 years)
- Total violations
- 25
- Effluent violations
- 25
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Waynesville Regional WWTP.
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Nearby wastewater treatment plants in Ohio
Springboro · 5 mi away
0.03 MGD
Spring Valley · 7 mi away
4.84 MGD
Springboro · 8 mi away
1.58 MGD
Clarksville · 10 mi away
0.05 MGD
Xenia · 11 mi away
1.47 MGD
Miamisburg · 12 mi away
1.66 MGD
Dayton · 13 mi away
7.3 MGD
Lebanon · 13 mi away
2.46 MGD
Waynesville Regional 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 December 1, 2025.