Sewickley Boro
Sewickley, PA · Allegheny County · Publicly Owned Treatment Works
- Average flow
- 0.61 MGD
- Design flow
- 0.9 MGD
- NPDES permit
- PA0020681
- Effective
- Permit expires
- February 2028
- Population served
- —
- CWNS 2022
Sewickley Boro is a publicly owned wastewater treatment plant in Sewickley, Allegheny County, Pennsylvania treating an average of 0.61 million gallons per day against a permitted design capacity of 0.9 MGD. Treatment on site includes clarifiers. It discharges under NPDES permit PA0020681 (effective), which expires in February 2028, with 4 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Compliance snapshot (last 3 years)
- Total violations
- 4
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Sewickley Boro, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Sewickley Boro, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Pennsylvania
Pittsburgh · 1 mi away
0.04 MGD
Moon Twp · 1 mi away
1.72 MGD
Moon Township · 1 mi away
0.72 MGD
Leetsdale · 2 mi away
0.31 MGD
Aliquippa · 4 mi away
0.04 MGD
Coraopolis · 4 mi away
2.56 MGD
Pgh · 4 mi away
0.05 MGD
Ambridge · 5 mi away
1.1 MGD
Sewickley Boro: 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 August 19, 2026.