Allegheny Valley Joint Sewage Authority
Cheswick, PA · Allegheny County · Publicly Owned Treatment Works
- Average flow
- 2.41 MGD
- Design flow
- —
- NPDES permit
- PAL026255
- Effective
- Permit expires
- December 2030
- Population served
- —
- CWNS 2022
Allegheny Valley Joint Sewage Authority is a publicly owned wastewater treatment works in Cheswick, Allegheny County, Pennsylvania treating an average of 2.41 million gallons per day. Treatment on site includes clarifiers, biogas silos. It discharges under NPDES permit PAL026255 (effective), which expires in December 2030, with 34 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 34
- Effluent violations
- 34
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
3 verified contacts for Allegheny Valley Joint Sewage Authority, with validated emails and direct phone numbers.
Unlock 3 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Allegheny Valley Joint Sewage Authority, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Pennsylvania
Oakmont · 1 mi away
0.95 MGD
Verona · 2 mi away
1.76 MGD
Pittsburgh · 4 mi away
0.03 MGD
Creighton · 5 mi away
4.3 MGD
Pittsburgh · 9 mi away
1.1 MGD
Russellton · 9 mi away
0.008 MGD
Pittsburgh · 9 mi away
0.6 MGD
Pittsburgh · 10 mi away
0.03 MGD
Allegheny Valley Joint Sewage Authority: 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 April 6, 2025.