Non-Compliance
Clean Water Act
WILLIAMSTOWN STP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $0 in total penalties since records began.
- Address
-
SR 2039
JEFFERSON, PA 15344
View on map ↗ - County
- WASHINGTON County
- Inspections
- 7 · last Dec 11, 2025
- Total Penalties
- $0 · last Feb 9, 2012
- Registry ID
- 110010810961
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
5
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
Discharge Limit Exceedances
Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.
| Pollutant | Violation | Reported | Limit | Exceedance | Period | Status |
|---|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 49.30 mg/L | 25.00 | +97% | Apr 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 27.20 mg/L | 25.00 | +9% | Feb 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 26.30 mg/L | 25.00 | +5% | Jan 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.10 mg/L | 11.00 | +92% | Jun 2023 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.74 mg/L | 11.00 | +70% | May 2023 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 13.70 mg/L | 11.00 | +25% | Oct 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 24.24 kg/d | 20.88 | +16% | Feb 2019 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.44 kg/d | 7.72 | +9% | May 2017 | Open |
Enforcement Actions
Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.
State CWA Penalty AO
Clean Water Act
· Case PA-0096601_02092012 · Feb 9, 2012
$7,000
State CWA Penalty AO
Clean Water Act
· Case PA-0096601_09162009 · Sep 16, 2009
$3,562
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· Utilities