Mccandless Twp - Longvue #1 STP
Pittsburgh, PA · Allegheny County · Publicly Owned Treatment Works
- Average flow
- 0.6 MGD
- Design flow
- 1.9 MGD
- NPDES permit
- PA0025992
- Expired
- Permit expires
- May 2024
- Population served
- 5,441
- CWNS 2022
Mccandless Twp - Longvue #1 STP is a publicly owned wastewater treatment works in Pittsburgh, Allegheny County, Pennsylvania treating an average of 0.6 million gallons per day against a permitted design capacity of 1.9 MGD, serving about 5,441 residents. It discharges under NPDES permit PA0025992 (expired), which expires in May 2024, 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
Decision-makers at Mccandless Twp - Longvue #1 STP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Pennsylvania
Pittsburgh · 1 mi away
0.03 MGD
Pgh · 5 mi away
0.05 MGD
Pittsburgh · 6 mi away
152.8 MGD
Coraopolis · 8 mi away
0.1 MGD
Coraopolis · 9 mi away
2.56 MGD
Cheswick · 9 mi away
2.41 MGD
Russellton · 9 mi away
0.008 MGD
Mckees Rocks · 9 mi away
0.24 MGD
Mccandless Twp - Longvue #1 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 August 9, 2026.