Petersburg STP
Petersburg, PA · Huntingdon County · Publicly Owned Treatment Works
- Average flow
- 0.02 MGD
- Design flow
- 0.1 MGD
- NPDES permit
- PA0111350
- Effective
- Permit expires
- March 2030
- Population served
- —
- CWNS 2022
Petersburg STP is a publicly owned wastewater treatment works in Petersburg, Huntingdon County, Pennsylvania treating an average of 0.02 million gallons per day against a permitted design capacity of 0.1 MGD. Treatment on site includes clarifiers. It discharges under NPDES permit PA0111350 (effective), which expires in March 2030, with 3 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
- 3
- Effluent violations
- 3
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Petersburg STP.
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Nearby wastewater treatment plants in Pennsylvania
Alexandria · 3 mi away
0.06 MGD
Huntingdon · 7 mi away
1.35 MGD
Williamsburg · 11 mi away
0.13 MGD
Mill Creek · 11 mi away
0.06 MGD
Mapleton Depot · 13 mi away
0.02 MGD
James Creek · 14 mi away
0.005 MGD
Mount Union · 15 mi away
0.34 MGD
Altoona · 16 mi away
0.36 MGD
Petersburg 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 November 28, 2025.