Non-Compliance
Clean Water Act
MONARCH MINE DEWATERING SITE
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
-
DUQUESNE LIGHT LANE
RURAL RIDGE, PA 15075
View on map ↗ - County
- ALLEGHENY County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221112
- Inspections
- 2 · last Jun 9, 2023
- Total Penalties
- $0
- Registry ID
- 110071277745
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.
7
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 |
|---|---|---|---|---|---|---|
| Manganese, total [as Mn] | DMR, Limited - Numeric Violation | 6.20 mg/L | 1.00 | +520% | Jan 2026 | Open |
| Manganese, total [as Mn] | DMR, Limited - Numeric Violation | 18.00 mg/L | 1.66 | +982% | Jan 2026 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 436.00 mg/L | 70.00 | +523% | Jan 2026 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 152.00 mg/L | 35.00 | +334% | Jan 2026 | Open |
| Aluminum, total [as Al] | DMR, Limited - Numeric Violation | 15.90 mg/L | 0.75 | +2,020% | Dec 2025 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Numeric Violation | 59.90 mg/L | 1.50 | +3,893% | Dec 2025 | Resolved |
| Aluminum, total [as Al] | DMR, Limited - Numeric Violation | 15.90 mg/L | 0.75 | +2,020% | Dec 2025 | Open |
| Aluminum, total [as Al] | DMR, Limited - Numeric Violation | 37.50 mg/L | 0.75 | +4,900% | Dec 2025 | Open |
| Manganese, total [as Mn] | DMR, Limited - Numeric Violation | 2.50 mg/L | 1.00 | +150% | Dec 2025 | Resolved |
| Manganese, total [as Mn] | DMR, Limited - Numeric Violation | 2.50 mg/L | 2.00 | +25% | Dec 2025 | Open |
| Aluminum, total [as Al] | DMR, Limited - Numeric Violation | 37.50 mg/L | 0.75 | +4,900% | Dec 2025 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Numeric Violation | 17.80 mg/L | 3.00 | +493% | Dec 2025 | Open |
| Iron, total [as Fe] | DMR, Limited - Numeric Violation | 59.90 mg/L | 3.00 | +1,897% | Dec 2025 | Open |
| Iron, total [as Fe] | DMR, Limited - Numeric Violation | 17.80 mg/L | 1.50 | +1,087% | Dec 2025 | Resolved |
| Manganese, total [as Mn] | DMR, Limited - Numeric Violation | 1.60 mg/L | 1.00 | +60% | Nov 2025 | Resolved |
| Aluminum, total [as Al] | DMR, Limited - Numeric Violation | 20.60 mg/L | 0.75 | +2,647% | Nov 2025 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Numeric Violation | 38.30 mg/L | 3.00 | +1,177% | Nov 2025 | Open |
| Aluminum, total [as Al] | DMR, Limited - Numeric Violation | 20.60 mg/L | 0.75 | +2,647% | Nov 2025 | Open |
| Aluminum, total [as Al] | DMR, Limited - Numeric Violation | 22.80 mg/L | 0.75 | +2,940% | Nov 2025 | Resolved |
| Aluminum, total [as Al] | DMR, Limited - Numeric Violation | 22.80 mg/L | 0.75 | +2,940% | Nov 2025 | Open |
| Iron, total [as Fe] | DMR, Limited - Numeric Violation | 36.70 mg/L | 1.50 | +2,347% | Nov 2025 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Numeric Violation | 38.30 mg/L | 1.50 | +2,453% | Nov 2025 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Numeric Violation | 36.70 mg/L | 3.00 | +1,123% | Nov 2025 | Open |
| Cadmium, total [as Cd] | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +30% | Oct 2025 | Open |
| Cadmium, total [as Cd] | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +100% | Oct 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 69.00 mg/L | 35.00 | +97% | Sep 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 182.00 mg/L | 70.00 | +160% | Sep 2025 | Open |
| Osmotic pressure, total, unf whl wtr | DMR, Limited - Numeric Violation | 54.00 mOsm/kg | 50.00 | +8% | Jul 2025 | Open |
| Chromium, hexavalent [as Cr] | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.01 | +233% | May 2025 | Open |
| Chromium, hexavalent [as Cr] | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.01 | +53% | May 2025 | Open |
| Iron, total [as Fe] | DMR, Limited - Numeric Violation | 10.10 mg/L | 3.00 | +237% | Mar 2025 | Open |
| Aluminum, total [as Al] | DMR, Limited - Numeric Violation | 4.00 mg/L | 0.75 | +433% | Mar 2025 | Open |
| Aluminum, total [as Al] | DMR, Limited - Numeric Violation | 4.00 mg/L | 0.75 | +433% | Mar 2025 | Open |
| Iron, total [as Fe] | DMR, Limited - Numeric Violation | 10.10 mg/L | 1.50 | +573% | Mar 2025 | Open |
| Pentachlorophenol | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +33% | Feb 2023 | Open |
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