Petrolia STP
Petrolia, PA · Butler County · Publicly Owned Treatment Works
- Average flow
- 0.008 MGD
- Design flow
- 0.04 MGD
- NPDES permit
- PA0094200
- Effective
- Permit expires
- April 2028
- Population served
- —
- CWNS 2022
Petrolia STP is a publicly owned wastewater treatment works in Petrolia, Butler County, Pennsylvania treating an average of 0.008 million gallons per day against a permitted design capacity of 0.04 MGD. It discharges under NPDES permit PA0094200 (effective), which expires in April 2028, with 66 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
- 66
- Effluent violations
- 66
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Petrolia STP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Pennsylvania
Karns City · 2 mi away
0.01 MGD
Petrolia · 2 mi away
0.009 MGD
Bruin · 3 mi away
0.01 MGD
Parker · 5 mi away
0.06 MGD
East Brady · 5 mi away
0.01 MGD
Chicora · 6 mi away
0.1 MGD
East Brady · 6 mi away
0.15 MGD
Foxburg · 8 mi away
0.03 MGD
Petrolia 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 18, 2025.