Tri Community STP
Robinson, PA · Indiana County · Publicly Owned Treatment Works
- Average flow
- 0.04 MGD
- Design flow
- 0.1 MGD
- NPDES permit
- PA0095524
- Effective
- Permit expires
- June 2030
- Population served
- —
- CWNS 2022
Tri Community STP is a publicly owned wastewater treatment works in Robinson, Indiana County, Pennsylvania treating an average of 0.04 million gallons per day against a permitted design capacity of 0.1 MGD. Treatment on site includes aerated lagoons. It discharges under NPDES permit PA0095524 (effective), which expires in June 2030, with 15 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
- 15
- Effluent violations
- 15
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Tri Community STP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Tri Community STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Pennsylvania
Blacklick · 6 mi away
0.06 MGD
Seward · 6 mi away
0.07 MGD
Seward · 7 mi away
0.008 MGD
Armagh · 8 mi away
0.03 MGD
Blairsville · 8 mi away
0.36 MGD
Derry · 8 mi away
0.02 MGD
Homer City · 8 mi away
0.27 MGD
Derry · 9 mi away
0.54 MGD
Tri Community 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.