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Copper Ores, major discharger, Patagonia, Arizona. NPDES permit AZ0026387, in force until Jul 2, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 001 |
| pH | minimum | report only (SU) | all year | 001 |
| pH | minimum | ≥ 6.5 SU | all year | 001 |
| pH | maximum | report only (SU) | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total suspended | monthly average | ≤ 13 kg/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 20 kg/d | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Cyanide, total [as CN] | monthly average | report only (ug/L) | all year | 001 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 001 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 001 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 001 |
| Fluoride, total [as F] | daily maximum | report only (ug/L) | all year | 001 |
| Arsenic, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Arsenic, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Arsenic, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Iron, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Iron, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Iron, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Selenium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Thallium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Thallium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Thallium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Beryllium, total recoverable [as Be] | monthly average | report only (ug/L) | all year | 001 |
| Beryllium, total recoverable [as Be] | daily maximum | report only (ug/L) | all year | 001 |
| Beryllium, total recoverable [as Be] | daily maximum | report only (ug/L) | all year | 001 |
| Boron, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Boron, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Boron, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Barium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Barium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Barium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, total [as Cr] | monthly average | report only (ug/L) | all year | 001 |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year | 001 |
| Nickel, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Silver total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Silver total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Silver total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Zinc, total recoverable | monthly average | ≤ 193 ug/L | all year | 001 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Zinc, total recoverable | daily maximum | ≤ 388 ug/L | all year | 001 |
| Zinc, total recoverable | monthly average | ≤ 126 g/d | all year | 001 |
| Zinc, total recoverable | daily maximum | ≤ 252 g/d | all year | 001 |
| Cadmium, total recoverable | monthly average | ≤ 4.9 ug/L | all year | 001 |
| Cadmium, total recoverable | daily maximum | ≤ 9.8 ug/L | all year | 001 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Cadmium, total recoverable | daily maximum | ≤ 3.9 g/d | all year | 001 |
| Lead, total recoverable | monthly average | ≤ 15 ug/L | all year | 001 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Lead, total recoverable | daily maximum | ≤ 30 ug/L | all year | 001 |
| Lead, total recoverable | monthly average | ≤ 9.8 g/d | all year | 001 |
| Lead, total recoverable | daily maximum | ≤ 20 g/d | all year | 001 |
| Copper, total recoverable | monthly average | ≤ 25 ug/L | all year | 001 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ 50 ug/L | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ 11 g/d | all year | 001 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (ug/L) | all year | 001 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 001 |
| Antimony, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Antimony, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Antimony, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Manganese, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Manganese, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Manganese, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Uranium, total as U3O8 | daily maximum | report only (ug/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Mercury, total recoverable | monthly average | ≤ .01 ug/L | all year | 001 |
| Mercury, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Mercury, total recoverable | daily maximum | ≤ .02 ug/L | all year | 001 |
| Mercury, total recoverable | monthly average | ≤ .005 g/d | all year | 001 |
| Mercury, total recoverable | daily maximum | ≤ .01 g/d | all year | 001 |
| Pass/Fail Static Renewal 96Hr Acute Ceriodaphnia dubia | monthly median | report only (pass=0;fail=1) | all year | 001 |
| Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | monthly median | report only (pass=0;fail=1) | all year | 001 |
| TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | monthly median | report only (tox chronic) | all year | 001 |
| TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | daily maximum | report only (tox chronic) | all year | 001 |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | monthly average | report only (tox chronic) | all year | 001 |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | daily maximum | report only (tox chronic) | all year | 001 |
| TU Static Renewal 7-Day Chronic Pimphales promelas | monthly average | report only (tox chronic) | all year | 001 |
| TU Static Renewal 7-Day Chronic Pimphales promelas | daily maximum | report only (tox chronic) | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 002 |
| pH | minimum | ≥ 6.5 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 002 |
| Solids, total suspended | monthly average | ≤ 490 kg/d | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 740 kg/d | all year | 002 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (ug/L) | all year | 002 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (ug/L) | all year | 002 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Cyanide, total [as CN] | monthly average | report only (ug/L) | all year | 002 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 002 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 002 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 002 |
| Fluoride, total [as F] | daily maximum | report only (ug/L) | all year | 002 |
| Arsenic, total recoverable | monthly average | report only (ug/L) | all year | 002 |
| Arsenic, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Iron, total recoverable | monthly average | report only (mg/L) | all year | 002 |
| Iron, total recoverable | daily maximum | report only (mg/L) | all year | 002 |
| Selenium, total recoverable | monthly average | report only (ug/L) | all year | 002 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Thallium, total recoverable | monthly average | report only (ug/L) | all year | 002 |
| Thallium, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Beryllium, total recoverable [as Be] | monthly average | report only (ug/L) | all year | 002 |
| Beryllium, total recoverable [as Be] | daily maximum | report only (ug/L) | all year | 002 |
| Boron, total recoverable | monthly average | report only (ug/L) | all year | 002 |
| Boron, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Barium, total recoverable | monthly average | report only (ug/L) | all year | 002 |
| Barium, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Chromium, total [as Cr] | monthly average | report only (ug/L) | all year | 002 |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year | 002 |
| Nickel, total recoverable | monthly average | report only (ug/L) | all year | 002 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Silver total recoverable | monthly average | report only (ug/L) | all year | 002 |
| Silver total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Zinc, total recoverable | monthly average | ≤ 133 ug/L | all year | 002 |
| Zinc, total recoverable | daily maximum | ≤ 267 ug/L | all year | 002 |
| Zinc, total recoverable | monthly average | ≤ 3270 g/d | all year | 002 |
| Zinc, total recoverable | daily maximum | ≤ 6560 g/d | all year | 002 |
| Cadmium, total recoverable | monthly average | ≤ 4.24 ug/L | all year | 002 |
| Cadmium, total recoverable | daily maximum | ≤ 8.51 ug/L | all year | 002 |
| Cadmium, total recoverable | monthly average | ≤ 106 g/d | all year | 002 |
| Cadmium, total recoverable | daily maximum | ≤ 214 g/d | all year | 002 |
| Lead, total recoverable | monthly average | ≤ 8.71 ug/L | all year | 002 |
| Lead, total recoverable | daily maximum | ≤ 17.4 ug/L | all year | 002 |
| Lead, total recoverable | monthly average | ≤ 213 g/d | all year | 002 |
| Lead, total recoverable | daily maximum | ≤ 428 g/d | all year | 002 |
| Copper, total recoverable | monthly average | ≤ 17 ug/L | all year | 002 |
| Copper, total recoverable | daily maximum | ≤ 34 ug/L | all year | 002 |
| Copper, total recoverable | monthly average | ≤ 420 g/d | all year | 002 |
| Copper, total recoverable | daily maximum | ≤ 840 g/d | all year | 002 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (ug/L) | all year | 002 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 002 |
| Antimony, total recoverable | monthly average | report only (ug/L) | all year | 002 |
| Antimony, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Manganese, total recoverable | monthly average | report only (ug/L) | all year | 002 |
| Manganese, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Uranium, total as U3O8 | daily maximum | report only (ug/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Mercury, total recoverable | monthly average | ≤ .01 ug/L | all year | 002 |
| Mercury, total recoverable | daily maximum | ≤ .02 ug/L | all year | 002 |
| Mercury, total recoverable | monthly average | ≤ .2 g/d | all year | 002 |
| Mercury, total recoverable | daily maximum | ≤ .4 g/d | all year | 002 |
| Pass/Fail Static Renewal 96Hr Acute Ceriodaphnia dubia | monthly median | report only (pass=0;fail=1) | all year | 002 |
| Pass/Fail Static Renewal 96Hr Acute Ceriodaphnia dubia | daily maximum | report only (pass=0;fail=1) | all year | 002 |
| Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | monthly median | report only (pass=0;fail=1) | all year | 002 |
| Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | daily maximum | report only (pass=0;fail=1) | all year | 002 |
| TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | monthly median | report only (tox chronic) | all year | 002 |
| TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | monthly median | report only (tox chronic) | all year | 002 |
| TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | daily maximum | report only (tox chronic) | all year | 002 |
| TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | daily maximum | report only (tox chronic) | all year | 002 |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | monthly median | report only (tox chronic) | all year | 002 |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | daily maximum | report only (tox chronic) | all year | 002 |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | daily maximum | report only (tox chronic) | all year | 002 |
| TU Static Renewal 7-Day Chronic Pimphales promelas | monthly median | report only (tox chronic) | all year | 002 |
| TU Static Renewal 7-Day Chronic Pimphales promelas | daily maximum | report only (tox chronic) | all year | 002 |
| TU Static Renewal 7-Day Chronic Pimphales promelas | daily maximum | report only (tox chronic) | all year | 002 |
Cited limits by parameter: Arizona's rules and the federal ones.
Same industry: the 8 Metal Mining permits in Arizona.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/AZ0026387 · MCP: https://passage-data.com/mcp