NPDES PA0279340 · Clean Water Act
NORTH QUARRY EXPANSION - PHASE IV, Mill Creek, PA: NPDES PA0279340 discharge permit, effluent exceedances, inspections, penalties
NORTH QUARRY EXPANSION - PHASE IV, Mill Creek, Pennsylvania: Individual permit PA0279340, held by US SILICA CO; Administratively continued; issued March 16, 2020, term to May 18, 2025, by State Environmental Organization; discharges to UNT To Mill Creek.
- Solids, total suspended: 9 limits, 66 violations of any kind.
- Iron, total [as Fe]: 9 limits, 66 violations of any kind.
- Aluminum, total [as Al]: 9 limits, 66 violations of any kind.
- pH: 6 limits, 44 violations of any kind.
- Temperature, water deg. centigrade: 3 limits, 22 violations of any kind.
- Specific conductance: 3 limits, 22 violations of any kind.
- Sulfate, total [as SO4]: 3 limits, 22 violations of any kind.
- Manganese, total [as Mn]: 3 limits, 22 violations of any kind.
- Flow, in conduit or thru treatment plant: 3 limits, 22 violations of any kind.
Other permits held by US SILICA CO
- N QUARRY EXPANSION, Mill Creek: PA0249190, issued 2018-02-06
- MAPLETON NORTH QUARRY EXPANSION PHASE V, Mill Creek: PA0279668, issued 2019-03-15
NORTH QUARRY EXPANSION - PHASE IV among its neighbors
3 discharge permits are in the Mill Creek subwatershed (HUC 020503040102); PA0279340 is one.
Other permits in the Mill Creek subwatershed (HUC 020503040102)
- MAPLETON NORTH QUARRY EXPANSION PHASE V, Mill Creek: PA0279668, minor, term to 2024-03-14
- N QUARRY EXPANSION, Mill Creek: PA0249190, minor, term to 2023-04-08
Identity
| Facility | NORTH QUARRY EXPANSION - PHASE IV |
|---|---|
| Permittee | US SILICA CO |
| NPDES ID | PA0279340 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Minor |
| Facility type | Non-POTW |
| Issued | March 16, 2020 |
| Expires | May 18, 2025 |
| Agency | State Environmental Organization |
| Address | Mill Creek, PA 17060 |
| Receiving water | UNT To Mill Creek |
| Subwatershed | Mill Creek (HUC 020503040102) |
NPDES PA0279340: effluent limits and exceedances
NORTH QUARRY EXPANSION - PHASE IV (NPDES PA0279340): 9 pollutants on file, 9 limited; 9 with a violation of any kind, 0 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 9 | 66 | 0 | ||
| Iron, total [as Fe] | 9 | 66 | 0 | ||
| Aluminum, total [as Al] | 9 | 66 | 0 | ||
| pH | 6 | 44 | 0 | ||
| Temperature, water deg. centigrade | 3 | 22 | 0 | ||
| Specific conductance | 3 | 22 | 0 | ||
| Sulfate, total [as SO4] | 3 | 22 | 0 | ||
| Manganese, total [as Mn] | 3 | 22 | 0 | ||
| Flow, in conduit or thru treatment plant | 3 | 22 | 0 |
NPDES PA0279340: inspections, violations and enforcement
NPDES PA0279340 (NORTH QUARRY EXPANSION - PHASE IV): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES PA0279340
NPDES PA0279340: one email when its EPA record changes — $99/month.
Permits near NPDES PA0279340
NPDES PA0279340: 9 pollutant rows, 0 dated events; ICIS-NPDES download, loaded October 14, 2026.