RIDLEY CREEK 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
-
1751 TOWNE DR
WEST CHESTER, PA 19380
View on map ↗ - County
- CHESTER County
- Inspections
- 5 · last Jan 6, 2026
- Total Penalties
- $0 · last Dec 15, 2008
- Registry ID
- 110059928315
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.
Qtrs Non-Compliant
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| cwa | Management Practice Violations - Improper Operation and Maintenance | Jan 24, 2025 | — | Open |
| cwa | Reporting Violations - Failure to Submit DMRs | Jan 4, 2024 | — | Open |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Jan 4, 2024 | — | Open |
| cwa | Management Practice Violations - Failure to Maintain Records | Nov 10, 2020 | — | Open |
| cwa | Reporting Violations - Failure to Submit DMRs | Nov 10, 2020 | — | Open |
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 |
|---|---|---|---|---|---|---|
| Solids, total suspended | DMR, Limited - Numeric Violation | 16.00 mg/L | 15.00 | +7% | Dec 2019 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.54 mg/L | 0.50 | +8% | Sep 2019 | Open |
| Phosphorus, total [as P] | DMR, Limited - Overdue | 0.58 mg/L | 0.50 | +16% | Aug 2019 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.58 mg/L | 0.50 | +16% | Aug 2019 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 16.00 mg/L | 15.00 | +7% | Dec 2017 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 16.00 mg/L | 15.00 | +7% | Dec 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.