Non-Compliance
Clean Water Act
RADLEY RUN MEWS 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
-
QUEENS WAY
WEST CHESTER, PA 19382
View on map ↗ - County
- CHESTER County
- Inspections
- 5 · last Mar 6, 2026
- Total Penalties
- $0
- Registry ID
- 110009161780
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.
11
Water (CWA)
Qtrs Non-Compliant
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 | Effluent Violations - Numeric effluent violation | Apr 9, 2025 | — | Open |
| cwa | Management Practice Violations - Failure to Maintain Records | Feb 23, 2024 | — | 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 |
|---|---|---|---|---|---|---|
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 32.20 mg/L | 30.00 | +7% | Jul 2025 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 33.90 mg/L | 30.00 | +13% | May 2025 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 363.00 MPN/100mL | 200.00 | +82% | May 2025 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 2,200.00 MPN/100mL | 1,000.00 | +120% | May 2025 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 4,400.00 MPN/100mL | 1,000.00 | +340% | Apr 2025 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 32.50 mg/L | 30.00 | +8% | Apr 2025 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 608.00 MPN/100mL | 200.00 | +204% | Apr 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.27 kg/d | 0.24 | +11% | Feb 2025 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 227.00 MPN/100mL | 200.00 | +14% | Feb 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.50 mg/L | 2.00 | +75% | Feb 2025 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 12,900.00 MPN/100mL | 1,000.00 | +1,190% | Feb 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.10 mg/L | 2.00 | +55% | Jan 2025 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 298.00 MPN/100mL | 200.00 | +49% | Dec 2024 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 1,300.00 MPN/100mL | 1,000.00 | +30% | Dec 2024 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 33.70 mg/L | 30.00 | +12% | Dec 2024 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 37.90 mg/L | 30.00 | +26% | Nov 2024 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.30 mg/L | 2.00 | +15% | Oct 2024 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 37.80 mg/L | 30.00 | +26% | Oct 2024 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 40.00 mg/L | 30.00 | +33% | Sep 2024 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.50 mg/L | 2.00 | +25% | Sep 2024 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 37.80 mg/L | 30.00 | +26% | Aug 2024 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.50 mg/L | 2.00 | +25% | Aug 2024 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 7,000.00 MPN/100mL | 1,000.00 | +600% | Jul 2024 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 43.00 mg/L | 30.00 | +43% | Jul 2024 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.40 mg/L | 2.00 | +20% | Jul 2024 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 41.80 mg/L | 30.00 | +39% | Jun 2024 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.60 mg/L | 2.00 | +30% | Jun 2024 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 40.40 mg/L | 30.00 | +35% | May 2024 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.40 mg/L | 2.00 | +70% | May 2024 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 3,400.00 MPN/100mL | 1,000.00 | +240% | Mar 2024 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 3,300.00 MPN/100mL | 1,000.00 | +230% | Feb 2024 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 32.00 mg/L | 30.00 | +7% | Dec 2023 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 40.70 mg/L | 30.00 | +36% | Nov 2023 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 36.20 mg/L | 30.00 | +21% | Oct 2023 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.10 mg/L | 2.00 | +5% | Sep 2023 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 36.40 mg/L | 30.00 | +21% | Sep 2023 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 34.10 mg/L | 30.00 | +14% | Aug 2023 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 33.70 mg/L | 30.00 | +12% | Jul 2023 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 33.20 mg/L | 30.00 | +11% | Jun 2023 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 31.70 mg/L | 30.00 | +6% | May 2023 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 36.20 mg/L | 30.00 | +21% | Apr 2023 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 35.40 mg/L | 30.00 | +18% | Mar 2023 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 32.10 mg/L | 30.00 | +7% | Feb 2023 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 35.10 mg/L | 30.00 | +17% | Jan 2023 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 31.10 mg/L | 30.00 | +4% | Dec 2022 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 32.50 mg/L | 30.00 | +8% | Nov 2022 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 33.10 mg/L | 30.00 | +10% | Oct 2022 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.20 mg/L | 2.00 | +60% | Sep 2022 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 39.40 mg/L | 30.00 | +31% | Sep 2022 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 4.80 mg/L | 2.00 | +140% | Aug 2022 | Resolved |
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