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Ferroalloy Ores, Except Vanadium, Cobalt, Idaho. NPDES permit ID0025259 expired Apr 30, 1995; its limits still apply. Last 12 months: no values over a limit, 7 of 88 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | ≥ 6.5 SU | all year | 001 |
| pH | minimum | ≥ 6.5 SU | all year | 001 |
| pH | maximum | ≤ 9.5 SU | all year | 001 |
| pH | maximum | ≤ 9.5 SU | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 20 mg/L | all year | 001 |
| Solids, total suspended | 7-day average | ≤ 30 mg/L | all year | 001 |
| Cadmium, total [as Cd] | 30-day average | ≤ .05 mg/L | all year | 001 |
| Cadmium, total [as Cd] | daily maximum | ≤ .1 mg/L | all year | 001 |
| Copper, total [as Cu] | 30-day average | ≤ .15 mg/L | all year | 001 |
| Copper, total [as Cu] | 30-day average | ≤ .15 mg/L | all year | 001 |
| Copper, total [as Cu] | daily maximum | ≤ .3 mg/L | all year | 001 |
| Copper, total [as Cu] | daily maximum | ≤ .3 mg/L | all year | 001 |
| Iron, total [as Fe] | 30-day average | report only (mg/L) | all year | 001 |
| Iron, total [as Fe] | 30-day average | report only (mg/L) | all year | 001 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 001 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 001 |
| Lead, total [as Pb] | 30-day average | ≤ .3 mg/L | all year | 001 |
| Lead, total [as Pb] | daily maximum | ≤ .6 mg/L | all year | 001 |
| Zinc, total [as Zn] | 30-day average | ≤ .75 mg/L | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 1.5 mg/L | all year | 001 |
| Zinc, total [as Zn] | 30-day average | ≤ .6 mg/L | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 1.2 mg/L | all year | 001 |
| Flow, in conduit or thru treatment plant | 30-day average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | 30-day average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | 7-day average | report only (MGD) | all year | 001 |
| Mercury, total [as Hg] | 30-day average | ≤ .001 mg/L | all year | 001 |
| Mercury, total [as Hg] | daily maximum | ≤ .002 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 30 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 30 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 30 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 30 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 45 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 45 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 45 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 45 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | 30-day average | report only (mg/L) | all year | 002 |
| BOD, 5-day, 20 deg. C | 30-day average | report only (mg/L) | all year | 002 |
| BOD, 5-day, 20 deg. C | 30-day average | report only (mg/L) | all year | 002 |
| BOD, 5-day, 20 deg. C | 30-day average | report only (mg/L) | all year | 002 |
| BOD, 5-day, 20 deg. C | 7-day average | report only (mg/L) | all year | 002 |
| BOD, 5-day, 20 deg. C | 7-day average | report only (mg/L) | all year | 002 |
| BOD, 5-day, 20 deg. C | 7-day average | report only (mg/L) | all year | 002 |
| BOD, 5-day, 20 deg. C | 7-day average | report only (mg/L) | all year | 002 |
| pH | minimum | ≥ 6.5 SU | all year | 002 |
| pH | minimum | ≥ 6.5 SU | all year | 002 |
| pH | minimum | ≥ 6.5 SU | all year | 002 |
| pH | minimum | ≥ 6.5 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 002 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 002 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 002 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 002 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 002 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 002 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 002 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 002 |
| Solids, total suspended | 30-day average | report only (mg/L) | all year | 002 |
| Solids, total suspended | 30-day average | report only (mg/L) | all year | 002 |
| Solids, total suspended | 30-day average | report only (mg/L) | all year | 002 |
| Solids, total suspended | 30-day average | report only (mg/L) | all year | 002 |
| Solids, total suspended | 7-day average | report only (mg/L) | all year | 002 |
| Solids, total suspended | 7-day average | report only (mg/L) | all year | 002 |
| Solids, total suspended | 7-day average | report only (mg/L) | all year | 002 |
| Solids, total suspended | 7-day average | report only (mg/L) | all year | 002 |
| Coliform, fecal MF, MFC broth, 44.5 C | 30-day average | ≤ 200 #/100mL | all year | 002 |
| Coliform, fecal MF, MFC broth, 44.5 C | 30-day average | ≤ 200 #/100mL | all year | 002 |
| Coliform, fecal MF, MFC broth, 44.5 C | 7-day average | ≤ 400 #/100mL | all year | 002 |
| Coliform, fecal MF, MFC broth, 44.5 C | 7-day average | ≤ 400 #/100mL | all year | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | 7-day average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | 7-day average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | 7-day average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | 7-day average | report only (MGD) | all year | 002 |
| BOD, 5-day, percent removal | monthly average | report only (%) | all year | 002 |
| BOD, 5-day, percent removal | minimum | report only (%) | all year | 002 |
| BOD, 5-day, percent removal | minimum | report only (%) | all year | 002 |
| BOD, 5-day, percent removal | minimum | report only (%) | all year | 002 |
| Solids, suspended percent removal | monthly average | report only (%) | all year | 002 |
| Solids, suspended percent removal | minimum | report only (%) | all year | 002 |
| Solids, suspended percent removal | minimum | report only (%) | all year | 002 |
| Solids, suspended percent removal | minimum | report only (%) | all year | 002 |
| pH | minimum | report only (SU) | all year | 004 |
| pH | maximum | report only (SU) | all year | 004 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 004 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 004 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 004 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 004 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 004 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 004 |
| Flow, in conduit or thru treatment plant | 30-day average | report only (gal/d) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 004 |
| Mercury, total [as Hg] | daily maximum | report only (mg/L) | all year | 004 |
| pH | minimum | report only (SU) | Jan, Apr, Jul, Oct | REC |
| pH | maximum | report only (SU) | Jan, Apr, Jul, Oct | REC |
| Solids, total suspended | 30-day average | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Solids, total suspended | 7-day average | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Cyanide, total [as CN] | 30-day average | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Cyanide, total [as CN] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Cadmium, total [as Cd] | 30-day average | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Cobalt, total [as Co] | 30-day average | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Cobalt, total [as Co] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Cobalt, total [as Co] | 30-day average | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Cobalt, total [as Co] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Copper, total [as Cu] | 30-day average | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Iron, total [as Fe] | 30-day average | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Iron, total [as Fe] | 30-day average | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Lead, total [as Pb] | 30-day average | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Zinc, total [as Zn] | 30-day average | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Flow, in conduit or thru treatment plant | 30-day average | report only (MGD) | Jan, Apr, Jul, Oct | REC |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jan, Apr, Jul, Oct | REC |
| Mercury, total [as Hg] | 30-day average | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
| Mercury, total [as Hg] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | REC |
Cited limits by parameter: Idaho's rules and the federal ones.
Same industry: the 10 Metal Mining permits in Idaho.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/ID0025259 · MCP: https://passage-data.com/mcp