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Industrial or other facility, Metaline Falls, Washington. NPDES permit WA0001317 expired May 31, 2009; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Flow | daily average | report only (gal/min) (alert, not enforceable) | all year | 0000 |
| Flow | daily average | report only (gal/min) (alert, not enforceable) | all year | 0000 |
| Temperature, water deg. fahrenheit | average | report only (deg F) (alert, not enforceable) | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec | 0001 |
| Temperature, water deg. fahrenheit | average | report only (deg F) (alert, not enforceable) | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec | 0001 |
| Temperature, water deg. fahrenheit | average | ≤ 70.6 deg F | Jul–Sep | 0001 |
| Temperature, water deg. fahrenheit | average | ≤ 70.6 deg F | Jul–Sep | 0001 |
| Temperature, water deg. fahrenheit | maximum | report only (deg F) (alert, not enforceable) | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec | 0001 |
| Temperature, water deg. fahrenheit | maximum | report only (deg F) (alert, not enforceable) | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec | 0001 |
| Temperature, water deg. fahrenheit | maximum | ≤ 72.2 deg F | Jul–Sep | 0001 |
| Temperature, water deg. fahrenheit | maximum | ≤ 72.2 deg F | Jul–Sep | 0001 |
| Conductivity | average | report only (umho/cm) (alert, not enforceable) | all year | 0001 |
| Conductivity | average | report only (umho/cm) (alert, not enforceable) | all year | 0001 |
| Conductivity | maximum | report only (umho/cm) (alert, not enforceable) | all year | 0001 |
| Conductivity | maximum | report only (umho/cm) (alert, not enforceable) | all year | 0001 |
| pH | maximum | ≤ 8.5 SU | all year | 0001 |
| pH | minimum | ≥ 6.5 SU | all year | 0001 |
| Solids, total suspended | average | ≤ 20 mg/L | all year | 0001 |
| Solids, total suspended | average | ≤ 20 mg/L | all year | 0001 |
| Solids, total suspended | maximum | ≤ 30 mg/L | all year | 0001 |
| Solids, total suspended | maximum | ≤ 30 mg/L | all year | 0001 |
| Oil and grease [soxhlet extr.] tot. | average | ≤ 10 mg/L | all year | 0001 |
| Oil and grease [soxhlet extr.] tot. | average | ≤ 10 mg/L | all year | 0001 |
| Oil and grease [soxhlet extr.] tot. | maximum | ≤ 15 mg/L | all year | 0001 |
| Oil and grease [soxhlet extr.] tot. | maximum | ≤ 15 mg/L | all year | 0001 |
| Arsenic, total [as As] | maximum | report only (ug/L) (alert, not enforceable) | all year | 0001 |
| Arsenic, total [as As] | maximum | report only (ug/L) (alert, not enforceable) | all year | 0001 |
| Copper, total [as Cu] | average | ≤ 50 ug/L | all year | 0001 |
| Copper, total [as Cu] | average | ≤ 50 ug/L | all year | 0001 |
| Copper, total [as Cu] | maximum | ≤ 78 ug/L | all year | 0001 |
| Copper, total [as Cu] | maximum | ≤ 78 ug/L | all year | 0001 |
| Lead, total [as Pb] | average | ≤ 200 ug/L | all year | 0001 |
| Lead, total [as Pb] | average | ≤ 200 ug/L | all year | 0001 |
| Lead, total [as Pb] | maximum | ≤ 400 ug/L | all year | 0001 |
| Lead, total [as Pb] | maximum | ≤ 400 ug/L | all year | 0001 |
| Zinc, total [as Zn] | average | ≤ 444 ug/L | all year | 0001 |
| Zinc, total [as Zn] | average | ≤ 444 ug/L | all year | 0001 |
| Zinc, total [as Zn] | maximum | ≤ 890 ug/L | all year | 0001 |
| Zinc, total [as Zn] | maximum | ≤ 890 ug/L | all year | 0001 |
| Uranium, dissolved | maximum | report only (mg/L) (alert, not enforceable) | all year | 0001 |
| Uranium, dissolved | maximum | report only (mg/L) (alert, not enforceable) | all year | 0001 |
| Flow | average | report only (MGD) (alert, not enforceable) | all year | 0001 |
| Flow | average | report only (MGD) (alert, not enforceable) | all year | 0001 |
| Flow | maximum | report only (MGD) (alert, not enforceable) | all year | 0001 |
| Flow | maximum | report only (MGD) (alert, not enforceable) | all year | 0001 |
| Turbidity | maximum | report only (NTU) (alert, not enforceable) | all year | 001 |
| Turbidity | maximum | report only (NTU) (alert, not enforceable) | all year | 001 |
| Sulfate [as S] | maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Sulfate [as S] | maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrogen, nitrate total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrogen, nitrate total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Cyanide, total [as CN] | maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Cyanide, total [as CN] | maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Hardness, total [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Hardness, total [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Cadmium, total [as Cd] | average | ≤ 22.1 ug/L | all year | 001 |
| Cadmium, total [as Cd] | average | ≤ 22.1 ug/L | all year | 001 |
| Cadmium, total [as Cd] | maximum | ≤ 32.2 ug/L | all year | 001 |
| Cadmium, total [as Cd] | maximum | ≤ 32.2 ug/L | all year | 001 |
| Radium 226 + radium 228, total | maximum | report only (pCi/L) (alert, not enforceable) | all year | 001 |
| Radium 226 + radium 228, total | maximum | report only (pCi/L) (alert, not enforceable) | all year | 001 |
| Mercury, total [as Hg] | average | ≤ 1 ug/L | all year | 001 |
| Mercury, total [as Hg] | average | ≤ 1 ug/L | all year | 001 |
| Mercury, total [as Hg] | maximum | ≤ 2 ug/L | all year | 001 |
| Mercury, total [as Hg] | maximum | ≤ 2 ug/L | all year | 001 |
| Temperature, water deg. fahrenheit | maximum | report only (deg F) (alert, not enforceable) | all year | 002 |
| Temperature, water deg. fahrenheit | maximum | report only (deg F) (alert, not enforceable) | all year | 002 |
| Conductivity | maximum | report only (umho/cm) (alert, not enforceable) | all year | 002 |
| Conductivity | maximum | report only (umho/cm) (alert, not enforceable) | all year | 002 |
| Sulfate [as S] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Sulfate [as S] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Alkalinity, total [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Alkalinity, total [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Alkalinity, bicarbonate [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Alkalinity, bicarbonate [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Carbonate ion- [as CO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Carbonate ion- [as CO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Nitrogen, nitrate total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Nitrogen, nitrate total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Cyanide, total [as CN] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Cyanide, total [as CN] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Calcium, total [as Ca] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Calcium, total [as Ca] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Magnesium, total [as Mg] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Magnesium, total [as Mg] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Potassium, total [as K] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Potassium, total [as K] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Chloride [as Cl] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Chloride [as Cl] | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Arsenic, total [as As] | maximum | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Arsenic, total [as As] | maximum | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Cadmium, total [as Cd] | maximum | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Cadmium, total [as Cd] | maximum | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Copper, total [as Cu] | maximum | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Copper, total [as Cu] | maximum | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Lead, total [as Pb] | maximum | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Lead, total [as Pb] | maximum | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Zinc, total [as Zn] | maximum | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Zinc, total [as Zn] | maximum | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Radium 226 + radium 228, total | maximum | report only (pCi/L) (alert, not enforceable) | all year | 002 |
| Radium 226 + radium 228, total | maximum | report only (pCi/L) (alert, not enforceable) | all year | 002 |
| Uranium, dissolved | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Uranium, dissolved | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| pH, maximum | maximum | report only (SU) (alert, not enforceable) | all year | 002 |
| pH, maximum | maximum | report only (SU) (alert, not enforceable) | all year | 002 |
| Solids, total dissolved | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Solids, total dissolved | maximum | report only (mg/L) (alert, not enforceable) | all year | 002 |
| Mercury, total [as Hg] | maximum | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Mercury, total [as Hg] | maximum | report only (ug/L) (alert, not enforceable) | all year | 002 |
| Temperature, water deg. fahrenheit | maximum | report only (deg F) (alert, not enforceable) | all year | 003 |
| Temperature, water deg. fahrenheit | maximum | report only (deg F) (alert, not enforceable) | all year | 003 |
| Conductivity | maximum | report only (umho/cm) (alert, not enforceable) | all year | 003 |
| Conductivity | maximum | report only (umho/cm) (alert, not enforceable) | all year | 003 |
| Sulfate [as S] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Sulfate [as S] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Alkalinity, total [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Alkalinity, total [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Alkalinity, bicarbonate [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Alkalinity, bicarbonate [as CaCO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Carbonate ion- [as CO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Carbonate ion- [as CO3] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Nitrogen, nitrate total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Nitrogen, nitrate total [as N] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Cyanide, total [as CN] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Cyanide, total [as CN] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Calcium, total [as Ca] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Calcium, total [as Ca] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Magnesium, total [as Mg] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Magnesium, total [as Mg] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Potassium, total [as K] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Potassium, total [as K] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Chloride [as Cl] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Chloride [as Cl] | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Arsenic, total [as As] | maximum | report only (ug/L) (alert, not enforceable) | all year | 003 |
| Arsenic, total [as As] | maximum | report only (ug/L) (alert, not enforceable) | all year | 003 |
| Cadmium, total [as Cd] | maximum | report only (ug/L) (alert, not enforceable) | all year | 003 |
| Cadmium, total [as Cd] | maximum | report only (ug/L) (alert, not enforceable) | all year | 003 |
| Copper, total [as Cu] | maximum | report only (ug/L) (alert, not enforceable) | all year | 003 |
| Copper, total [as Cu] | maximum | report only (ug/L) (alert, not enforceable) | all year | 003 |
| Lead, total [as Pb] | maximum | report only (ug/L) (alert, not enforceable) | all year | 003 |
| Lead, total [as Pb] | maximum | report only (ug/L) (alert, not enforceable) | all year | 003 |
| Zinc, total [as Zn] | maximum | report only (ug/L) (alert, not enforceable) | all year | 003 |
| Zinc, total [as Zn] | maximum | report only (ug/L) (alert, not enforceable) | all year | 003 |
| Radium 226 + radium 228, total | maximum | report only (pCi/L) (alert, not enforceable) | all year | 003 |
| Radium 226 + radium 228, total | maximum | report only (pCi/L) (alert, not enforceable) | all year | 003 |
| Uranium, dissolved | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Uranium, dissolved | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| pH, maximum | maximum | report only (SU) (alert, not enforceable) | all year | 003 |
| pH, maximum | maximum | report only (SU) (alert, not enforceable) | all year | 003 |
| Solids, total dissolved | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Solids, total dissolved | maximum | report only (mg/L) (alert, not enforceable) | all year | 003 |
| Mercury, total [as Hg] | maximum | report only (ug/L) (alert, not enforceable) | all year | 003 |
| Mercury, total [as Hg] | maximum | report only (ug/L) (alert, not enforceable) | all year | 003 |
Cited limits by parameter: Washington's rules and the federal ones.
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