Millers Run STP
Cecil, PA · Washington County · Publicly Owned Treatment Works
- Average flow
- 0.12 MGD
- Design flow
- 0.52 MGD
- NPDES permit
- PA0252603
- Effective
- Permit expires
- December 2029
- Population served
- —
- CWNS 2022
Millers Run STP is a publicly owned wastewater treatment works in Cecil, Washington County, Pennsylvania treating an average of 0.12 million gallons per day against a permitted design capacity of 0.52 MGD. It discharges under NPDES permit PA0252603 (effective), which expires in December 2029, with 3 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
- 3
- Effluent violations
- 3
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Millers Run STP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Millers Run STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Pennsylvania
Bridgeville · 3 mi away
0.02 MGD
Canonsburg · 5 mi away
0.35 MGD
Canonsburg · 5 mi away
0.89 MGD
Pittsburgh · 8 mi away
0.54 MGD
Canonsburg · 8 mi away
0.06 MGD
Pittsburgh · 8 mi away
0.03 MGD
Mckees Rocks · 10 mi away
0.24 MGD
Washington · 10 mi away
4.51 MGD
Millers Run 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 1, 2025.