St Marys Wastewater Treatment Plant
282 State St, Saint Marys, PA 15857 · Elk County · Publicly Owned Treatment Works
- Average flow
- 2.45 MGD
- Design flow
- —
- NPDES permit
- PAL026387
- Effective
- Permit expires
- December 2030
- Population served
- —
- CWNS 2022
St Marys Wastewater Treatment Plant is a publicly owned wastewater treatment works in Saint Marys, Elk County, Pennsylvania treating an average of 2.45 million gallons per day. It discharges under NPDES permit PAL026387 (effective), which expires in December 2030, with 3 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at St Marys Wastewater Treatment Plant.
Available with a free Klarifi account
See the full treatment train at St Marys Wastewater Treatment Plant: 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
3 verified contacts for St Marys Wastewater Treatment Plant, with validated emails and direct phone numbers.
Unlock 3 verified contacts
Names, validated emails and direct phone numbers for decision-makers at St Marys Wastewater Treatment Plant, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Pennsylvania
Kersey · 4 mi away
0.2 MGD
Johnsonburg · 6 mi away
0.54 MGD
Ridgway · 8 mi away
1.32 MGD
Weedville · 11 mi away
0.11 MGD
Penfield · 13 mi away
0.04 MGD
Brockway · 16 mi away
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Emporium · 19 mi away
0.71 MGD
Hazel Hurst · 20 mi away
0.02 MGD
St Marys Wastewater Treatment Plant: 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 August 9, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Equalization tank · Centrate · all terms