Covi Douglas STP
Coraopolis, PA · Allegheny County · Publicly Owned Treatment Works
- Average flow
- 0.1 MGD
- Design flow
- 0.15 MGD
- NPDES permit
- PA0096318
- Effective
- Permit expires
- April 2027
- Population served
- —
- CWNS 2022
Covi Douglas STP is a publicly owned wastewater treatment works in Coraopolis, Allegheny County, Pennsylvania treating an average of 0.1 million gallons per day against a permitted design capacity of 0.15 MGD. It discharges under NPDES permit PA0096318 (effective), which expires in April 2027, with 14 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
- 14
- Effluent violations
- 14
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Covi Douglas STP.
No verified contacts on file yet
Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.
Nearby wastewater treatment plants in Pennsylvania
Mckees Rocks · 1 mi away
0.24 MGD
Coraopolis · 2 mi away
2.56 MGD
Pittsburgh · 4 mi away
0.03 MGD
Pittsburgh · 4 mi away
0.54 MGD
Pittsburgh · 4 mi away
152.8 MGD
Moon Twp · 4 mi away
1.72 MGD
Pittsburgh · 4 mi away
0.04 MGD
Pgh · 6 mi away
0.05 MGD
Covi Douglas 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 2, 2025.