Hampshire Estates STP
Russellton, PA · Allegheny County · Publicly Owned Treatment Works
- Average flow
- 0.008 MGD
- Design flow
- —
- NPDES permit
- PA0093891
- Effective
- Permit expires
- May 2030
- Population served
- —
- CWNS 2022
Hampshire Estates STP is a publicly owned wastewater treatment works in Russellton, Allegheny County, Pennsylvania treating an average of 0.008 million gallons per day. It discharges under NPDES permit PA0093891 (effective), which expires in May 2030, with 10 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
- 10
- Effluent violations
- 10
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Hampshire Estates STP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Pennsylvania
Creighton · 8 mi away
4.3 MGD
Mars · 8 mi away
1.49 MGD
Cheswick · 9 mi away
2.41 MGD
Pittsburgh · 9 mi away
0.6 MGD
Oakmont · 9 mi away
0.95 MGD
Pittsburgh · 10 mi away
0.03 MGD
Verona · 10 mi away
1.76 MGD
Freeport · 11 mi away
0.18 MGD
Hampshire Estates 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 October 2, 2025.