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Primary Nonferrous Metals, major discharger, Henderson, Nevada. NPDES permit NV0000060 expired Oct 31, 2020; its limits still apply. Last 12 months: over a limit 5 times (last June 2026), 177 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| December 2025 | 001 | Copper, dissolved [as Cu], daily maximum | 110 ug/L | ≤ 22.2 ug/L | 395% |
| December 2025 | SUM | Nitrogen, ammonia total [as N], 30-day average | 1.219 lb/d | ≤ 1 lb/d | 22% |
| March 2026 | 001 | Copper, dissolved [as Cu], daily maximum | 44 ug/L | ≤ 22.2 ug/L | 98% |
| June 2026 | 001 | Copper, dissolved [as Cu], daily maximum | 40 ug/L | ≤ 22.2 ug/L | 80% |
| June 2026 | SUM | Nitrogen, ammonia total [as N], 30-day average | 1.6 lb/d | ≤ 1 lb/d | 60% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | 30-day average | report only (deg F) | all year | 001 |
| Temperature, water deg. fahrenheit | 30-day average | report only (deg F) | all year | 001 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 001 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 001 |
| Flow rate | 30-day average | report only (MGD) | all year | 001 |
| Flow rate | 30-day average | report only (MGD) | all year | 001 |
| Flow rate | daily maximum | ≤ 10.19 MGD | all year | 001 |
| Flow rate | daily maximum | ≤ 10.19 MGD | all year | 001 |
| Oil & Grease | 30-day average | ≤ 10 mg/L | all year | 001 |
| Oil & Grease | 30-day average | ≤ 10 mg/L | all year | 001 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 001 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, inorganic total | 30-day average | ≤ 10 mg/L | all year | 001 |
| Nitrogen, inorganic total | 30-day average | ≤ 10 mg/L | all year | 001 |
| Phosphorus, total [as P] | 30-day average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | 30-day average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | 30-day average | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 001 |
| Magnesium, total [as Mg] | 30-day average | report only (mg/L) | all year | 001 |
| Magnesium, total [as Mg] | daily maximum | report only (mg/L) | all year | 001 |
| Chloride [as Cl] | 30-day average | report only (mg/L) | all year | 001 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 001 |
| Boron, total [as B] | daily maximum | report only (mg/L) | all year | 001 |
| Copper, dissolved [as Cu] | daily maximum | ≤ 22.2 ug/L | all year | 001 |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | all year | 001 |
| Titanium, total [as Ti] | 30-day average | report only (mg/L) | all year | 001 |
| Titanium, total [as Ti] | daily maximum | report only (mg/L) | all year | 001 |
| Perchlorate [ClO4] | 30-day average | report only (mg/L) | all year | 001 |
| Perchlorate [ClO4] | daily maximum | report only (mg/L) | all year | 001 |
| pH, maximum | 30-day average | report only (SU) | all year | 001 |
| pH, maximum | 30-day average | report only (SU) | all year | 001 |
| pH, maximum | daily maximum | ≤ 9 SU | all year | 001 |
| pH, maximum | daily maximum | ≤ 9 SU | all year | 001 |
| pH, minimum | daily minimum | ≥ 6.5 SU | all year | 001 |
| pH, minimum | daily minimum | ≥ 6.5 SU | all year | 001 |
| pH, minimum | 30-day average | report only (SU) | all year | 001 |
| pH, minimum | 30-day average | report only (SU) | all year | 001 |
| Solids, total dissolved | 30-day average | ≤ 2300 mg/L | all year | 001 |
| Solids, total dissolved | 30-day average | ≤ 2300 mg/L | all year | 001 |
| Solids, total dissolved | daily maximum | ≤ 2600 mg/L | all year | 001 |
| Solids, total dissolved | daily maximum | ≤ 2600 mg/L | all year | 001 |
| Temperature, water deg. fahrenheit | 30-day average | report only (deg F) | all year | 002 |
| Temperature, water deg. fahrenheit | 30-day average | report only (deg F) | all year | 002 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 002 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 002 |
| Flow rate | 30-day average | report only (MGD) | all year | 002 |
| Flow rate | 30-day average | report only (MGD) | all year | 002 |
| Flow rate | daily maximum | ≤ .576 MGD | all year | 002 |
| Flow rate | daily maximum | ≤ .576 MGD | all year | 002 |
| Solids, total suspended | monthly average | ≤ 143.54 lb/d | all year | 002 |
| Solids, total suspended | monthly average | ≤ 143.54 lb/d | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 301.76 lb/d | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 301.76 lb/d | all year | 002 |
| Oil & Grease | monthly average | ≤ 88.332 lb/d | all year | 002 |
| Oil & Grease | monthly average | ≤ 88.332 lb/d | all year | 002 |
| Oil & Grease | daily maximum | ≤ 147.22 lb/d | all year | 002 |
| Oil & Grease | daily maximum | ≤ 147.22 lb/d | all year | 002 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (lb/d) | all year | 002 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (lb/d) | all year | 002 |
| Nitrogen, inorganic total | daily maximum | ≤ 17 mg/L | all year | 002 |
| Phosphorus, total [as P] | 30-day average | report only (lb/d) | all year | 002 |
| Phosphorus, total [as P] | 30-day average | report only (lb/d) | all year | 002 |
| Hardness, total [as CaCO3] | 30-day average | report only (mg/L) | all year | 002 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 002 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 002 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 002 |
| Magnesium, total [as Mg] | 30-day average | report only (mg/L) | all year | 002 |
| Magnesium, total [as Mg] | daily maximum | report only (mg/L) | all year | 002 |
| Sulfate, total [as SO4] | 30-day average | report only (mg/L) | all year | 002 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 002 |
| Arsenic, total [as As] | 30-day average | report only (ug/L) | all year | 002 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | all year | 002 |
| Boron, total [as B] | daily maximum | report only (mg/L) | all year | 002 |
| Chromium, total [as Cr] | monthly average | ≤ .226 lb/d | all year | 002 |
| Chromium, total [as Cr] | monthly average | ≤ .226 lb/d | all year | 002 |
| Chromium, total [as Cr] | daily maximum | ≤ .557 lb/d | all year | 002 |
| Chromium, total [as Cr] | daily maximum | ≤ .557 lb/d | all year | 002 |
| Iron, total [as Fe] | 30-day average | ≤ 1 mg/L | all year | 002 |
| Iron, total [as Fe] | daily maximum | ≤ 1 mg/L | all year | 002 |
| Lead, dissolved [as Pb] | value | ≤ 7.83 ug/L | all year | 002 |
| Lead, dissolved [as Pb] | value | ≤ 7.83 ug/L | all year | 002 |
| Lead, total [as Pb] | monthly average | ≤ .196 lb/d | all year | 002 |
| Lead, total [as Pb] | monthly average | ≤ .196 lb/d | all year | 002 |
| Lead, total [as Pb] | daily maximum | ≤ .422 lb/d | all year | 002 |
| Lead, total [as Pb] | daily maximum | ≤ .422 lb/d | all year | 002 |
| Manganese, total [as Mn] | 30-day average | ≤ .2 mg/L | all year | 002 |
| Manganese, total [as Mn] | daily maximum | ≤ .2 mg/L | all year | 002 |
| Molybdenum, total [as Mo] | 30-day average | ≤ 1.65 mg/L | all year | 002 |
| Molybdenum, total [as Mo] | daily maximum | ≤ 6.16 mg/L | all year | 002 |
| Nickel, total [as Ni] | value | ≤ 127.75 ug/L | all year | 002 |
| Nickel, total [as Ni] | value | ≤ 127.75 ug/L | all year | 002 |
| Nickel, total [as Ni] | monthly average | ≤ .557 lb/d | all year | 002 |
| Nickel, total [as Ni] | monthly average | ≤ .557 lb/d | all year | 002 |
| Nickel, total [as Ni] | daily maximum | ≤ .829 lb/d | all year | 002 |
| Nickel, total [as Ni] | daily maximum | ≤ .829 lb/d | all year | 002 |
| Silver, total [as Ag] | 30-day average | report only (ug/L) | all year | 002 |
| Silver, total [as Ag] | daily maximum | report only (ug/L) | all year | 002 |
| Vanadium, total [as V] | 30-day average | report only (ug/L) | all year | 002 |
| Vanadium, total [as V] | daily maximum | report only (ug/L) | all year | 002 |
| Aluminum, total [as Al] | 30-day average | report only (mg/L) | all year | 002 |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year | 002 |
| Chromium, total recoverable | value | ≤ 100 ug/L | all year | 002 |
| Chromium, total recoverable | value | ≤ 100 ug/L | all year | 002 |
| Selenium, total [as Se] | 30-day average | report only (ug/L) | all year | 002 |
| Selenium, total [as Se] | daily maximum | report only (ug/L) | all year | 002 |
| Titanium, total [as Ti] | monthly average | ≤ .347 lb/d | all year | 002 |
| Titanium, total [as Ti] | monthly average | ≤ .347 lb/d | all year | 002 |
| Titanium, total [as Ti] | daily maximum | ≤ .799 lb/d | all year | 002 |
| Titanium, total [as Ti] | daily maximum | ≤ .799 lb/d | all year | 002 |
| Radiation,Gross Beta Particle Activity | daily maximum | ≤ 4 mrems/yr | all year | 002 |
| Uranium, total | 30-day average | ≤ 30 ug/L | all year | 002 |
| Uranium, total | daily maximum | ≤ 30 ug/L | all year | 002 |
| Carbon tetrachloride | daily maximum | ≤ 5 ug/L | all year | 002 |
| Chloroform | daily maximum | ≤ 80 ug/L | all year | 002 |
| Tetrachloroethylene | daily maximum | ≤ 5 ug/L | all year | 002 |
| Trichloroethylene | daily maximum | ≤ 5 ug/L | all year | 002 |
| Perchlorate [ClO4] | daily maximum | ≤ 18 ug/L | all year | 002 |
| pH, maximum | daily maximum | ≤ 10 SU | all year | 002 |
| pH, maximum | daily maximum | ≤ 10 SU | all year | 002 |
| pH, maximum | maximum monthly average | report only (SU) | all year | 002 |
| pH, maximum | maximum monthly average | report only (SU) | all year | 002 |
| pH, minimum | daily minimum | ≥ 7.5 SU | all year | 002 |
| pH, minimum | daily minimum | ≥ 7.5 SU | all year | 002 |
| pH, minimum | monthly average minimum | report only (SU) | all year | 002 |
| pH, minimum | monthly average minimum | report only (SU) | all year | 002 |
| Solids, total dissolved | daily maximum | ≤ 3000 mg/L | all year | 002 |
| Solids, total dissolved | daily maximum | ≤ 3000 mg/L | all year | 002 |
| Mercury, total [as Hg] | 30-day average | report only (ug/L) | all year | 002 |
| Mercury, total [as Hg] | daily maximum | report only (ug/L) | all year | 002 |
| Alpha gross radioactivity | daily maximum | ≤ 15 pCi/L | all year | 002 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1 lb/d | all year | SUM |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1 lb/d | all year | SUM |
| Phosphorus, total [as P] | 30-day average | ≤ 1 lb/d | all year | SUM |
| Phosphorus, total [as P] | 30-day average | ≤ 1 lb/d | all year | SUM |
| pH, maximum | daily maximum | ≤ 9 SU | all year | SUM |
| pH, maximum | daily maximum | ≤ 9 SU | all year | SUM |
| pH, minimum | daily minimum | ≥ 6.5 SU | all year | SUM |
| pH, minimum | daily minimum | ≥ 6.5 SU | all year | SUM |
Cited limits by parameter: Nevada's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/NV0000060 · MCP: https://passage-data.com/mcp