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Industrial or other facility, Big Rock, Virginia. NPDES permit VAM080454 expired Dec 27, 2023; its limits still apply. Last 12 months: over a limit 6 times (last January 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| January 2026 | 0208 | Iron, total [as Fe], daily maximum | 24.5 | ≤ 6 mg/L | 308% |
| January 2026 | 0208 | Iron, total [as Fe], monthly average | 12.35 | ≤ 3 mg/L | 312% |
| January 2026 | 4951 | Iron, total [as Fe], daily maximum | 133 | ≤ 7 mg/L | 1800% |
| January 2026 | 4951 | Iron, total [as Fe], monthly average | 76.7 | ≤ 3.5 mg/L | 2091% |
| January 2026 | 4951 | Solids, total suspended, daily maximum | 115 | ≤ 70 mg/L | 64% |
| January 2026 | 4951 | Solids, total suspended, monthly average | 89.5 | ≤ 35 mg/L | 156% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | instantaneous minimum | ≥ 6 SU | all year | 0208 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 0208 |
| Solids, total suspended | daily minimum | report only (mg/L) | all year | 0208 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 0208 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 0208 |
| Solids, settleable | daily minimum | report only (mL/L) | all year | 0208 |
| Solids, settleable | monthly average | report only (mL/L) | all year | 0208 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 0208 |
| Iron, total [as Fe] | daily minimum | report only (mg/L) | all year | 0208 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 0208 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 0208 |
| Manganese, total [as Mn] | daily minimum | report only (mg/L) | all year | 0208 |
| Manganese, total [as Mn] | monthly average | ≤ 2 mg/L | all year | 0208 |
| Manganese, total [as Mn] | daily maximum | ≤ 4 mg/L | all year | 0208 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/min) | all year | 0208 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 0208 |
| Solids, total dissolved [TDS] | daily minimum | report only (mg/L) | all year | 0208 |
| Solids, total dissolved [TDS] | monthly average | report only (mg/L) | all year | 0208 |
| Solids, total dissolved [TDS] | daily maximum | report only (mg/L) | all year | 0208 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 4950 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 4950 |
| Solids, total suspended | daily minimum | report only (mg/L) | all year | 4950 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 4950 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 4950 |
| Iron, total [as Fe] | daily minimum | report only (mg/L) | all year | 4950 |
| Iron, total [as Fe] | monthly average | ≤ 3.5 mg/L | all year | 4950 |
| Iron, total [as Fe] | daily maximum | ≤ 7 mg/L | all year | 4950 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/min) | all year | 4950 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 4950 |
| Solids, total dissolved [TDS] | daily minimum | report only (mg/L) | all year | 4950 |
| Solids, total dissolved [TDS] | monthly average | report only (mg/L) | all year | 4950 |
| Solids, total dissolved [TDS] | daily maximum | report only (mg/L) | all year | 4950 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 4951 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 4951 |
| Solids, total suspended | daily minimum | report only (mg/L) | all year | 4951 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 4951 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 4951 |
| Solids, settleable | daily minimum | report only (mL/L) | all year | 4951 |
| Solids, settleable | monthly average | report only (mL/L) | all year | 4951 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 4951 |
| Iron, total [as Fe] | daily minimum | report only (mg/L) | all year | 4951 |
| Iron, total [as Fe] | monthly average | ≤ 3.5 mg/L | all year | 4951 |
| Iron, total [as Fe] | daily maximum | ≤ 7 mg/L | all year | 4951 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/min) | all year | 4951 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 4951 |
| Solids, total dissolved [TDS] | daily minimum | report only (mg/L) | all year | 4951 |
| Solids, total dissolved [TDS] | monthly average | report only (mg/L) | all year | 4951 |
| Solids, total dissolved [TDS] | daily maximum | report only (mg/L) | all year | 4951 |
Cited limits by parameter: Virginia's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/VAM080454 · MCP: https://passage-data.com/mcp