Non-Compliance
Clean Water Act
WILLISTOWN WOODS 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
-
1702 WEST CHESTER PIKE
WEST CHESTER, PA 19382
View on map ↗ - County
- CHESTER County
- Inspections
- 4 · last Dec 10, 2025
- Total Penalties
- $0 · last Jan 11, 2017
- Registry ID
- 110044905243
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.
2
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 |
|---|---|---|---|---|---|---|
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.39 mg/L | 1.00 | +39% | Aug 2020 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 1,000.00 | +99,999% | Jan 2020 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 1,000.00 | +142% | Dec 2019 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 1,000.00 | +142% | Jul 2018 | 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-0050075_01112017 · Jan 11, 2017
$5,342
State CWA Penalty AO
Clean Water Act
· Case PA-0050075_06222004 · Jun 22, 2004
$4,410
Civil Judicial Action
Clean Water Act
· Case PA-0050075_11151999 · Nov 15, 1999
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