St Clair WWTP
St Clair-Port Carbon Hwy, St Clair, PA 17970 · Schuylkill County · Publicly Owned Treatment Works
- Average flow
- 0.0093 MGD
- Design flow
- 0.75 MGD
- NPDES permit
- PA0025224
- Effective
- Permit expires
- February 2030
- Population served
- —
- CWNS 2022
St Clair WWTP is a publicly owned wastewater treatment works in St Clair, Schuylkill County, Pennsylvania treating an average of 0.0093 million gallons per day against a permitted design capacity of 0.75 MGD. It discharges under NPDES permit PA0025224 (effective), which expires in February 2030, with 43 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at St Clair WWTP.
Available with a free Klarifi account
See the full treatment train at St Clair WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 43
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for St Clair WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at St Clair WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Pennsylvania
Cumbola · 2 mi away
0.17 MGD
Pottsville · 2 mi away
3.13 MGD
New Philadelphia · 4 mi away
0.02 MGD
Cressona · 5 mi away
0.28 MGD
Orwigsburg · 6 mi away
0.47 MGD
Schuylkill Haven · 6 mi away
0.9 MGD
Llewellyn · 6 mi away
0.12 MGD
Frackville · 6 mi away
0.56 MGD
St Clair WWTP: 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 November 28, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms