I 70 Ind Prk STP
Smithton, PA · Westmoreland County · Publicly Owned Treatment Works
- Average flow
- 0.0053 MGD
- Design flow
- 0.05 MGD
- NPDES permit
- PA0216089
- Effective
- Permit expires
- October 2029
- Population served
- —
- CWNS 2022
I 70 Ind Prk STP is a publicly owned wastewater treatment works in Smithton, Westmoreland County, Pennsylvania treating an average of 0.0053 million gallons per day against a permitted design capacity of 0.05 MGD. Treatment on site includes aerated lagoons. It discharges under NPDES permit PA0216089 (effective), which expires in October 2029, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Aerated lagoons
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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 I 70 Ind Prk STP.
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Nearby wastewater treatment plants in Pennsylvania
Smithton · 2 mi away
0.03 MGD
West Newton · 3 mi away
0.67 MGD
Sewickley · 4 mi away
0.002 MGD
Star Junction · 4 mi away
0.03 MGD
Herminie · 5 mi away
0.13 MGD
Perryopolis · 7 mi away
0.18 MGD
Hunker · 7 mi away
3.14 MGD
Allenport · 7 mi away
0.17 MGD
I 70 Ind Prk 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 6, 2025.