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Copper Ores, major discharger, Redding, California. NPDES permit CA0081876 expired Sep 1, 2007; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | report only (SU) | all year | 001 |
| pH | maximum | report only (SU) | all year | 001 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 001 |
| Zinc, percent removal | monthly average minimum | ≥ 99 % | all year | 001 |
| Copper, percent removal | monthly average minimum | ≥ 99 % | all year | 001 |
| Cadmium, percent removal | monthly average minimum | ≥ 99 % | all year | 001 |
| pH | minimum | report only (SU) | all year | 002 |
| pH | maximum | report only (SU) | all year | 002 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 002 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 002 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 002 |
| Zinc, percent removal | monthly average minimum | ≥ 99 % | all year | 002 |
| Copper, percent removal | monthly average minimum | ≥ 99 % | all year | 002 |
| Cadmium, percent removal | monthly average minimum | ≥ 99 % | all year | 002 |
| pH | minimum | report only (SU) | all year | 003 |
| pH | maximum | report only (SU) | all year | 003 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 003 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 003 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 003 |
| Zinc, percent removal | monthly average minimum | ≥ 99 % | all year | 003 |
| Copper, percent removal | monthly average minimum | ≥ 99 % | all year | 003 |
| Cadmium, percent removal | monthly average minimum | ≥ 99 % | all year | 003 |
| pH | minimum | report only (SU) | all year | 004 |
| pH | maximum | report only (SU) | all year | 004 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 004 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 004 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 004 |
| Zinc, percent removal | monthly average minimum | ≥ 99 % | all year | 004 |
| Copper, percent removal | monthly average minimum | ≥ 99 % | all year | 004 |
| Cadmium, percent removal | monthly average minimum | ≥ 99 % | all year | 004 |
| pH | minimum | report only (SU) | all year | 005 |
| pH | maximum | report only (SU) | all year | 005 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 005 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 005 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 005 |
| Zinc, percent removal | monthly average minimum | ≥ 99 % | all year | 005 |
| Copper, percent removal | monthly average minimum | ≥ 99 % | all year | 005 |
| Cadmium, percent removal | monthly average minimum | ≥ 99 % | all year | 005 |
| pH | minimum | report only (SU) | all year | 006 |
| pH | maximum | report only (SU) | all year | 006 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 006 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 006 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 006 |
| pH | minimum | report only (SU) | all year | 007 |
| pH | maximum | report only (SU) | all year | 007 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 007 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 007 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 007 |
| pH | minimum | report only (SU) | all year | 008 |
| pH | maximum | report only (SU) | all year | 008 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 008 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 008 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 008 |
| pH | minimum | report only (SU) | all year | 009 |
| pH | maximum | report only (SU) | all year | 009 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 009 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 009 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 009 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 009 |
| pH | minimum | report only (SU) | all year | 010 |
| pH | maximum | report only (SU) | all year | 010 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 010 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 010 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 010 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 010 |
| Zinc, percent removal | monthly average minimum | ≥ 99 % | all year | 010 |
| Copper, percent removal | monthly average minimum | ≥ 99 % | all year | 010 |
| Cadmium, percent removal | monthly average minimum | ≥ 99 % | all year | 010 |
| pH | minimum | report only (SU) | all year | 011 |
| pH | maximum | report only (SU) | all year | 011 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 011 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 011 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 011 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 011 |
| Zinc, percent removal | monthly average minimum | ≥ 99 % | all year | 011 |
| Copper, percent removal | monthly average minimum | ≥ 99 % | all year | 011 |
| Cadmium, percent removal | monthly average minimum | ≥ 99 % | all year | 011 |
| pH | minimum | report only (SU) | all year | 012 |
| pH | maximum | report only (SU) | all year | 012 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 012 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 012 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 012 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 012 |
| Zinc, percent removal | monthly average minimum | ≥ 99 % | all year | 012 |
| Copper, percent removal | monthly average minimum | ≥ 99 % | all year | 012 |
| Cadmium, percent removal | monthly average minimum | ≥ 99 % | all year | 012 |
| pH | minimum | report only (SU) | all year | 013 |
| pH | maximum | report only (SU) | all year | 013 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 013 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 013 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 013 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 013 |
| Zinc, percent removal | monthly average minimum | ≥ 99 % | all year | 013 |
| Copper, percent removal | monthly average minimum | ≥ 99 % | all year | 013 |
| Cadmium, percent removal | monthly average minimum | ≥ 99 % | all year | 013 |
| pH | minimum | report only (SU) | all year | 014 |
| pH | maximum | report only (SU) | all year | 014 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 014 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 014 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 014 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/min) | all year | 014 |
| Zinc, percent removal | monthly average minimum | ≥ 99 % | all year | 014 |
| Copper, percent removal | monthly average minimum | ≥ 99 % | all year | 014 |
| Cadmium, percent removal | monthly average minimum | ≥ 99 % | all year | 014 |
Cited limits by parameter: California's rules and the federal ones.
Same industry: the 5 Metal Mining permits in California.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/CA0081876 · MCP: https://passage-data.com/mcp