Leetsdale Mun Auth STP
10 6th St, Leetsdale, PA 15056 · Allegheny County · Publicly Owned Treatment Works
- Average flow
- 0.49 MGD
- Design flow
- 0.95 MGD
- NPDES permit
- PA0024589
- Effective
- Permit expires
- June 2030
- Population served
- —
- CWNS 2022
Leetsdale Mun Auth STP is a publicly owned wastewater treatment works in Leetsdale, Allegheny County, Pennsylvania treating an average of 0.49 million gallons per day against a permitted design capacity of 0.95 MGD. It discharges under NPDES permit PA0024589 (effective), which expires in June 2030, with 3 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Leetsdale Mun Auth STP.
Available with a free Klarifi account
See the full treatment train at Leetsdale Mun Auth STP: structures, unit processes and planned upgrades, with exact unit counts.
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 Leetsdale Mun Auth STP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Leetsdale Mun Auth STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Pennsylvania
Moon Township · 1 mi away
0.89 MGD
Sewickley · 2 mi away
0.68 MGD
Aliquippa · 2 mi away
0.12 MGD
Pittsburgh · 3 mi away
0.04 MGD
Moon Twp · 3 mi away
2.1 MGD
Ambridge · 3 mi away
1.4 MGD
Pgh · 5 mi away
0.05 MGD
Aliquippa · 6 mi away
1.27 MGD
Leetsdale Mun Auth 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 October 12, 2026; facility record last updated July 2, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Centrate · Ozonation · all terms