Non-Compliance
Clean Water Act
KNIGHTS BRIDGE 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
-
BRANDYWINE DR & ENDO BLVD
CHADS FORD, PA 19317
View on map ↗ - County
- DELAWARE County
- Inspections
- 5 · last Sep 11, 2025
- Total Penalties
- $0 · last May 18, 2012
- Registry ID
- 110010973296
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.
4
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 | Permit Violations - Violation Specified in Comment | Oct 8, 2021 | — | 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 |
|---|---|---|---|---|---|---|
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 16.00 mg/L | 10.00 | +60% | Dec 2025 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 16.40 mg/L | 10.00 | +64% | Dec 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.60 mg/L | 0.50 | +20% | Nov 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.00 mg/L | 0.50 | +300% | Oct 2025 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 10.20 mg/L | 10.00 | +2% | Jun 2025 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 4.83 mg/L | 5.00 | +3% | Jul 2024 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 10.50 mg/L | 10.00 | +5% | Nov 2021 | Open |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 23.00 mg/L | 10.00 | +130% | Jul 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 23.30 mg/L | 10.00 | +133% | Jul 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 17.10 mg/L | 10.00 | +71% | Jun 2020 | Resolved |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 16.00 mg/L | 10.00 | +60% | Jun 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 16.60 mg/L | 10.00 | +66% | May 2020 | Resolved |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 16.00 mg/L | 10.00 | +60% | May 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 23.90 mg/L | 10.00 | +139% | Apr 2020 | Resolved |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 23.00 mg/L | 10.00 | +130% | Apr 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 50.20 mg/L | 10.00 | +402% | Mar 2020 | Resolved |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 48.00 mg/L | 10.00 | +380% | Mar 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 38.70 mg/L | 10.00 | +287% | Feb 2020 | Resolved |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 3.90 kg/d | 3.40 | +15% | Feb 2020 | Resolved |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 36.50 mg/L | 10.00 | +265% | Feb 2020 | Resolved |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 35.00 mg/L | 10.00 | +250% | Jan 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 37.10 mg/L | 10.00 | +271% | Jan 2020 | Resolved |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 3.50 kg/d | 3.40 | +3% | Jan 2020 | Resolved |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 3.81 kg/d | 3.40 | +12% | Dec 2019 | Resolved |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 34.00 mg/L | 10.00 | +240% | Dec 2019 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 36.40 mg/L | 10.00 | +264% | Dec 2019 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 14.00 mg/L | 10.00 | +40% | Nov 2019 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 40.00 mg/L | 10.00 | +300% | Nov 2019 | Resolved |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 35.50 mg/L | 10.00 | +255% | Nov 2019 | Resolved |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 45.00 mg/L | 10.00 | +350% | Oct 2019 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 46.20 mg/L | 10.00 | +362% | Oct 2019 | Resolved |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 36.00 mg/L | 10.00 | +260% | Sep 2019 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 37.40 mg/L | 10.00 | +274% | Sep 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1.70 mg/L | 1.00 | +70% | Aug 2019 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 27.90 mg/L | 10.00 | +179% | Aug 2019 | Resolved |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.70 mg/L | 0.60 | +17% | Aug 2019 | Open |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 25.00 mg/L | 10.00 | +150% | Aug 2019 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 30.00 mg/L | 10.00 | +200% | Jul 2019 | Resolved |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 28.00 mg/L | 10.00 | +180% | Jul 2019 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.20 mg/L | 2.00 | +10% | Jul 2019 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 11.00 mg/L | 10.00 | +10% | Jul 2019 | Resolved |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 463.00 MPN/100mL | 200.00 | +132% | Jul 2019 | Open |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 22.30 mg/L | 10.00 | +123% | Jun 2019 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 23.10 mg/L | 10.00 | +131% | Jun 2019 | Resolved |
| Nitrite + Nitrate total [as N] | DMR, Limited - Numeric Violation | 23.00 mg/L | 10.00 | +130% | May 2019 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 23.90 mg/L | 10.00 | +139% | May 2019 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 21.40 mg/L | 10.00 | +114% | Apr 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1.54 kg/d | 1.04 | +48% | Apr 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.00 mg/L | 3.00 | +500% | Apr 2019 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 21.00 mg/L | 10.00 | +110% | Apr 2019 | Resolved |
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-0052663_05182012 · May 18, 2012
$4,500
State CWA Penalty AO
Clean Water Act
· Case PA-0052663_04072009 · Apr 7, 2009
$85,000
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