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Uranium-Radium-Vanadium Ores, major discharger, Wellpinit, Washington. NPDES permit WA0025721 expired Oct 30, 2000; its limits still apply. Last 12 months: no values over a limit, 1 of 48 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen demand, chem. [high level] [COD] | daily average | ≤ 100 mg/L | all year | 001 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 200 mg/L | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | daily average | ≤ 20 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 001 |
| Hardness, total [as CaCO3] | daily average | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 001 |
| Manganese, total [as Mn] | daily average | ≤ 3 mg/L | all year | 001 |
| Manganese, total [as Mn] | daily maximum | ≤ 10 mg/L | all year | 001 |
| Zinc, total [as Zn] | daily average | ≤ .5 mg/L | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 1 mg/L | all year | 001 |
| Cadmium, total recoverable | daily average | ≤ .1 mg/L | all year | 001 |
| Cadmium, total recoverable | daily maximum | ≤ .015 mg/L | all year | 001 |
| Copper, total recoverable | daily average | ≤ .126 mg/L | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ .184 mg/L | all year | 001 |
| Radium 226, total | daily average | ≤ 10 pCi/L | all year | 001 |
| Radium 226, total | daily maximum | ≤ 30 pCi/L | all year | 001 |
| Radium 226, dissolved | daily average | ≤ 3 pCi/L | all year | 001 |
| Radium 226, dissolved | daily maximum | ≤ 10 pCi/L | all year | 001 |
| Uranium, total | daily average | ≤ 2 mg/L | all year | 001 |
| Uranium, total | daily maximum | ≤ 4 mg/L | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Oxygen demand, chem. [high level] [COD] | daily average | ≤ 100 mg/L | all year | 002 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 200 mg/L | all year | 002 |
| pH | minimum | ≥ 6 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | daily average | ≤ 20 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 002 |
| Hardness, total [as CaCO3] | daily average | report only (mg/L) | Jan, Apr, Jul, Oct | 002 |
| Manganese, total [as Mn] | daily average | ≤ 3 mg/L | all year | 002 |
| Manganese, total [as Mn] | daily maximum | ≤ 10 mg/L | all year | 002 |
| Zinc, total [as Zn] | daily average | ≤ .5 mg/L | all year | 002 |
| Zinc, total [as Zn] | daily maximum | ≤ 1 mg/L | all year | 002 |
| Cadmium, total recoverable | monthly average | ≤ .1 mg/L | all year | 002 |
| Cadmium, total recoverable | daily maximum | ≤ .015 mg/L | all year | 002 |
| Copper, total recoverable | monthly average | ≤ .126 mg/L | all year | 002 |
| Copper, total recoverable | daily maximum | ≤ .184 mg/L | all year | 002 |
| Radium 226, total | daily average | ≤ 10 pCi/L | all year | 002 |
| Radium 226, total | daily maximum | ≤ 30 pCi/L | all year | 002 |
| Radium 226, dissolved | daily average | ≤ 3 pCi/L | all year | 002 |
| Radium 226, dissolved | daily maximum | ≤ 10 pCi/L | all year | 002 |
| Uranium, total | daily average | ≤ 2 mg/L | all year | 002 |
| Uranium, total | daily maximum | ≤ 4 mg/L | all year | 002 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Oxygen demand, chem. [high level] [COD] | daily average | ≤ 100 mg/L | all year | 003 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 200 mg/L | all year | 003 |
| pH | minimum | ≥ 6 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | daily average | ≤ 20 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 003 |
| Hardness, total [as CaCO3] | daily average | report only (mg/L) | all year | 003 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 003 |
| Manganese, total [as Mn] | daily average | ≤ 3 mg/L | all year | 003 |
| Manganese, total [as Mn] | daily maximum | ≤ 10 mg/L | all year | 003 |
| Zinc, total [as Zn] | daily average | ≤ .5 mg/L | all year | 003 |
| Zinc, total [as Zn] | daily maximum | ≤ 1 mg/L | all year | 003 |
| Cadmium, total recoverable | daily average | ≤ .01 mg/L | all year | 003 |
| Cadmium, total recoverable | daily maximum | ≤ .015 mg/L | all year | 003 |
| Copper, total recoverable | daily average | ≤ .126 mg/L | all year | 003 |
| Copper, total recoverable | daily maximum | ≤ .184 mg/L | all year | 003 |
| Radium 226, total | daily average | ≤ 10 pCi/L | all year | 003 |
| Radium 226, total | daily maximum | ≤ 30 pCi/L | all year | 003 |
| Radium 226, dissolved | daily average | ≤ 3 pCi/L | all year | 003 |
| Radium 226, dissolved | daily maximum | ≤ 10 pCi/L | all year | 003 |
| Uranium, total | daily average | ≤ 2 mg/L | all year | 003 |
| Uranium, total | daily maximum | ≤ 4 mg/L | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | report only (tox acute) | Apr, Jun, Oct | 003 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | report only (tox chronic) | Apr, Jun, Oct | 003 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | report only (tox acute) | Apr, Jun, Oct | 003 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | report only (tox chronic) | Apr, Jun, Oct | 003 |
| Oxygen demand, chem. [high level] [COD] | daily average | ≤ 100 mg/L | all year | 004 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 200 mg/L | all year | 004 |
| pH | minimum | ≥ 6 SU | all year | 004 |
| pH | maximum | ≤ 9 SU | all year | 004 |
| Solids, total suspended | daily average | ≤ 20 mg/L | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 004 |
| Hardness, total [as CaCO3] | daily average | report only (mg/L) | all year | 004 |
| Manganese, total [as Mn] | daily average | ≤ 3 mg/L | all year | 004 |
| Manganese, total [as Mn] | daily maximum | ≤ 10 mg/L | all year | 004 |
| Zinc, total [as Zn] | daily average | ≤ .5 mg/L | all year | 004 |
| Zinc, total [as Zn] | daily maximum | ≤ 1 mg/L | all year | 004 |
| Cadmium, total recoverable | daily average | ≤ .01 mg/L | all year | 004 |
| Cadmium, total recoverable | daily maximum | ≤ .015 mg/L | all year | 004 |
| Copper, total recoverable | daily average | ≤ .126 mg/L | all year | 004 |
| Copper, total recoverable | daily maximum | ≤ .184 mg/L | all year | 004 |
| Radium 226, total | daily average | ≤ 10 pCi/L | all year | 004 |
| Radium 226, total | daily maximum | ≤ 30 pCi/L | all year | 004 |
| Radium 226, dissolved | daily average | ≤ 3 pCi/L | all year | 004 |
| Radium 226, dissolved | daily maximum | ≤ 10 pCi/L | all year | 004 |
| Uranium, total | daily average | ≤ 2 mg/L | all year | 004 |
| Uranium, total | daily maximum | ≤ 4 mg/L | all year | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 004 |
Cited limits by parameter: Washington's rules and the federal ones.
Same industry: the 3 Metal Mining permits in Washington.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/WA0025721 · MCP: https://passage-data.com/mcp