Scioto Hills STP
Powell, OH · Delaware County · Publicly Owned Treatment Works
- Average flow
- 0.02 MGD
- Design flow
- 0.08 MGD
- NPDES permit
- OH0055221
- Expired
- Permit expires
- March 2026
- Population served
- 858
- CWNS 2022
Scioto Hills STP is a publicly owned wastewater treatment works in Powell, Delaware County, Ohio treating an average of 0.02 million gallons per day against a permitted design capacity of 0.08 MGD, serving about 858 residents. It discharges under NPDES permit OH0055221 (expired), which expires in March 2026, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Scioto Hills STP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Ohio
Powell · 5 mi away
3.41 MGD
Ostrander · 7 mi away
0.04 MGD
Plain City · 7 mi away
0.0012 MGD
Dublin · 8 mi away
0.01 MGD
Marysville · 8 mi away
3.83 MGD
Amlin · 8 mi away
0.0094 MGD
Delaware · 8 mi away
3.68 MGD
Plain City · 9 mi away
0.7 MGD
Scioto Hills STP: 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 September 4, 2025.