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Special Trade Contractors, Las Vegas, Nevada. NPDES permit NV0024232, in force until Apr 30, 2031. Last 12 months: over a limit 6 times (last April 2026), 116 required values missing, 13 of 41 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| December 2025 | RS1 | Boron, total [as B], daily maximum | 4600 ug/L | ≤ 750 ug/L | 513% |
| December 2025 | RS1 | pH, maximum, daily maximum | 10 SU | ≤ 9 SU | — |
| December 2025 | RS2 | Boron, total [as B], daily maximum | 6600 ug/L | ≤ 750 ug/L | 780% |
| December 2025 | RS2 | pH, maximum, daily maximum | 9.4 SU | ≤ 9 SU | — |
| March 2026 | RS2 | Boron, total [as B], daily maximum | 890 ug/L | ≤ 750 ug/L | 19% |
| April 2026 | RS1 | Boron, total [as B], daily maximum | 900 ug/L | ≤ 750 ug/L | 20% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Flow rate | 30-day average | report only (gal/d) | all year | IN1 |
| Flow rate | 30-day average | report only (gal/d) | all year | IN1 |
| Flow rate | daily maximum | report only (gal/d) | all year | IN1 |
| Flow rate | daily maximum | report only (gal/d) | all year | IN1 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year | IN1 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year | IN1 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | all year | IN1 |
| Boron, total recoverable | daily maximum | report only (ug/L) | all year | IN1 |
| Tetrachloroethylene | daily maximum | report only (ug/L) | all year | IN1 |
| Trichlorofluoromethane | daily maximum | report only (ug/L) | all year | IN1 |
| Trichloroethylene | daily maximum | report only (ug/L) | all year | IN1 |
| pH, maximum | daily maximum | report only (SU) | all year | IN1 |
| pH, minimum | daily minimum | report only (SU) | all year | IN1 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | IN1 |
| Trihalomethane, tot. | daily maximum | report only (ug/L) | all year | IN1 |
| Flow rate | 30-day average | report only (gal/d) | all year | IN2 |
| Flow rate | 30-day average | report only (gal/d) | all year | IN2 |
| Flow rate | daily maximum | report only (gal/d) | all year | IN2 |
| Flow rate | daily maximum | report only (gal/d) | all year | IN2 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year | IN2 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year | IN2 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | all year | IN2 |
| Boron, total recoverable | daily maximum | report only (ug/L) | all year | IN2 |
| Tetrachloroethylene | daily maximum | report only (ug/L) | all year | IN2 |
| Trichlorofluoromethane | daily maximum | report only (ug/L) | all year | IN2 |
| Trichloroethylene | daily maximum | report only (ug/L) | all year | IN2 |
| pH, maximum | daily maximum | report only (SU) | all year | IN2 |
| pH, minimum | daily minimum | report only (SU) | all year | IN2 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | IN2 |
| Trihalomethane, tot. | daily maximum | report only (ug/L) | all year | IN2 |
| Flow rate | 30-day average | report only (gal/d) | all year | RS1 |
| Flow rate | 30-day average | report only (gal/d) | all year | RS1 |
| Flow rate | daily maximum | report only (gal/d) | all year | RS1 |
| Flow rate | daily maximum | report only (gal/d) | all year | RS1 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | RS1 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | all year | RS1 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year | RS1 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year | RS1 |
| Nitrogen, inorganic total | daily maximum | ≤ 20 mg/L | all year | RS1 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | RS1 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | RS1 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | RS1 |
| Sulfide, total [as S] | daily maximum | report only (ug/L) | all year | RS1 |
| Fluoride, total [as F] | daily maximum | report only (ug/L) | all year | RS1 |
| Iron, total recoverable | daily maximum | ≤ 1000 ug/L | all year | RS1 |
| Beryllium, total recoverable [as Be] | daily maximum | report only (ug/L) | all year | RS1 |
| Boron, total recoverable | daily maximum | ≤ 750 ug/L | all year | RS1 |
| Arsenic, dissolved [as As] | daily maximum | report only (ug/L) | all year | RS1 |
| Cadmium, dissolved [as Cd] | daily maximum | report only (ug/L) | all year | RS1 |
| Chromium, hexavalent [as Cr] | daily maximum | report only (ug/L) | all year | RS1 |
| Chromium, trivalent [as Cr] | daily maximum | report only (ug/L) | all year | RS1 |
| Copper, dissolved [as Cu] | daily maximum | ≤ 29 ug/L | all year | RS1 |
| Lead, dissolved [as Pb] | daily maximum | report only (ug/L) | all year | RS1 |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year | RS1 |
| Silver, dissolved [as Ag] | daily maximum | report only (ug/L) | all year | RS1 |
| Zinc, dissolved [as Zn] | daily maximum | report only (ug/L) | all year | RS1 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | all year | RS1 |
| Molybdenum, total recoverable | daily maximum | report only (ug/L) | all year | RS1 |
| Selenium, dissolved [as Se] | daily maximum | ≤ 6.3 ug/L | all year | RS1 |
| Tributyltin | daily maximum | report only (ug/L) | all year | RS1 |
| Manganese, total recoverable | daily maximum | report only (ug/L) | all year | RS1 |
| 1,2-Dichloroethane | daily maximum | report only (ug/L) | all year | RS1 |
| Acrolein | daily maximum | report only (ug/L) | all year | RS1 |
| .beta.-Endosulfan | daily maximum | report only (ug/L) | all year | RS1 |
| .alpha.-Endosulfan | daily maximum | report only (ug/L) | all year | RS1 |
| Tetrachloroethylene | daily maximum | ≤ 5 ug/L | all year | RS1 |
| Trichlorofluoromethane | daily maximum | report only (ug/L) | all year | RS1 |
| 1,1-Dichloroethane | daily maximum | report only (ug/L) | all year | RS1 |
| trans-1,2-Dichloroethylene | daily maximum | report only (ug/L) | all year | RS1 |
| Chlorpyrifos | daily maximum | report only (ug/L) | all year | RS1 |
| Pentachlorophenol | daily maximum | report only (ug/L) | all year | RS1 |
| Vinyl chloride | daily maximum | report only (ug/L) | all year | RS1 |
| Trichloroethylene | daily maximum | ≤ 5 ug/L | all year | RS1 |
| 4,4'-DDT | daily maximum | report only (ug/L) | all year | RS1 |
| Aldrin | daily maximum | report only (ug/L) | all year | RS1 |
| Chlordane [tech mix. and metabolites] | daily maximum | report only (ug/L) | all year | RS1 |
| Dieldrin | daily maximum | report only (ug/L) | all year | RS1 |
| Endrin | daily maximum | report only (ug/L) | all year | RS1 |
| Toxaphene | daily maximum | report only (ug/L) | all year | RS1 |
| Heptachlor | daily maximum | report only (ug/L) | all year | RS1 |
| Heptachlor epoxide | daily maximum | report only (ug/L) | all year | RS1 |
| Methoxychlor | daily maximum | report only (ug/L) | all year | RS1 |
| Polychlorinated biphenyls [PCBs] | daily maximum | report only (ug/L) | all year | RS1 |
| Malathion | daily maximum | report only (ug/L) | all year | RS1 |
| Parathion | daily maximum | report only (ug/L) | all year | RS1 |
| Demeton | daily maximum | report only (ug/L) | all year | RS1 |
| Diazinon | daily maximum | report only (ug/L) | all year | RS1 |
| Mirex | daily maximum | report only (ug/L) | all year | RS1 |
| Lindane | daily maximum | report only (ug/L) | all year | RS1 |
| Nonylphenol | daily maximum | report only (ug/L) | all year | RS1 |
| pH, maximum | daily maximum | ≤ 9 SU | all year | RS1 |
| pH, minimum | daily minimum | ≥ 6.5 SU | all year | RS1 |
| Solids, total dissolved | daily maximum | ≤ 3000 mg/L | all year | RS1 |
| Mercury, dissolved [as Hg] | daily maximum | report only (ug/L) | all year | RS1 |
| Trihalomethane, tot. | daily maximum | report only (ug/L) | all year | RS1 |
| Azinphos-methyl | daily maximum | report only (ug/L) | all year | RS1 |
| Flow rate | 30-day average | report only (gal/d) | all year | RS2 |
| Flow rate | 30-day average | report only (gal/d) | all year | RS2 |
| Flow rate | daily maximum | report only (gal/d) | all year | RS2 |
| Flow rate | daily maximum | report only (gal/d) | all year | RS2 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | RS2 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | all year | RS2 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year | RS2 |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year | RS2 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | all year | RS2 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | RS2 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | RS2 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | RS2 |
| Sulfide, total [as S] | daily maximum | report only (ug/L) | all year | RS2 |
| Fluoride, total [as F] | daily maximum | report only (ug/L) | all year | RS2 |
| Iron, total recoverable | daily maximum | ≤ 1000 ug/L | all year | RS2 |
| Beryllium, total recoverable [as Be] | daily maximum | report only (ug/L) | all year | RS2 |
| Boron, total recoverable | daily maximum | ≤ 750 ug/L | all year | RS2 |
| Arsenic, dissolved [as As] | daily maximum | report only (ug/L) | all year | RS2 |
| Cadmium, dissolved [as Cd] | daily maximum | report only (ug/L) | all year | RS2 |
| Chromium, hexavalent [as Cr] | daily maximum | report only (ug/L) | all year | RS2 |
| Chromium, trivalent [as Cr] | daily maximum | report only (ug/L) | all year | RS2 |
| Copper, dissolved [as Cu] | daily maximum | ≤ 29 ug/L | all year | RS2 |
| Lead, dissolved [as Pb] | daily maximum | report only (ug/L) | all year | RS2 |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year | RS2 |
| Silver, dissolved [as Ag] | daily maximum | report only (ug/L) | all year | RS2 |
| Zinc, dissolved [as Zn] | daily maximum | report only (ug/L) | all year | RS2 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | all year | RS2 |
| Molybdenum, total recoverable | daily maximum | report only (ug/L) | all year | RS2 |
| Selenium, dissolved [as Se] | daily maximum | ≤ 6.3 ug/L | all year | RS2 |
| Tributyltin | daily maximum | report only (ug/L) | all year | RS2 |
| Manganese, total recoverable | daily maximum | report only (ug/L) | all year | RS2 |
| 1,2-Dichloroethane | daily maximum | report only (ug/L) | all year | RS2 |
| Acrolein | daily maximum | report only (ug/L) | all year | RS2 |
| .beta.-Endosulfan | daily maximum | report only (ug/L) | all year | RS2 |
| .alpha.-Endosulfan | daily maximum | report only (ug/L) | all year | RS2 |
| Tetrachloroethylene | daily maximum | ≤ 5 ug/L | all year | RS2 |
| Trichlorofluoromethane | daily maximum | report only (ug/L) | all year | RS2 |
| 1,1-Dichloroethane | daily maximum | report only (ug/L) | all year | RS2 |
| trans-1,2-Dichloroethylene | daily maximum | report only (ug/L) | all year | RS2 |
| Chlorpyrifos | daily maximum | report only (ug/L) | all year | RS2 |
| Pentachlorophenol | daily maximum | report only (ug/L) | all year | RS2 |
| Vinyl chloride | daily maximum | report only (ug/L) | all year | RS2 |
| Trichloroethylene | daily maximum | ≤ 5 ug/L | all year | RS2 |
| 4,4'-DDT | daily maximum | report only (ug/L) | all year | RS2 |
| Aldrin | daily maximum | report only (ug/L) | all year | RS2 |
| Chlordane [tech mix. and metabolites] | daily maximum | report only (ug/L) | all year | RS2 |
| Dieldrin | daily maximum | report only (ug/L) | all year | RS2 |
| Endrin | daily maximum | report only (ug/L) | all year | RS2 |
| Toxaphene | daily maximum | report only (ug/L) | all year | RS2 |
| Heptachlor | daily maximum | report only (ug/L) | all year | RS2 |
| Heptachlor epoxide | daily maximum | report only (ug/L) | all year | RS2 |
| Methoxychlor | daily maximum | report only (ug/L) | all year | RS2 |
| Polychlorinated biphenyls [PCBs] | daily maximum | report only (ug/L) | all year | RS2 |
| Malathion | daily maximum | report only (ug/L) | all year | RS2 |
| Parathion | daily maximum | report only (ug/L) | all year | RS2 |
| Demeton | daily maximum | report only (ug/L) | all year | RS2 |
| Diazinon | daily maximum | report only (ug/L) | all year | RS2 |
| Mirex | daily maximum | report only (ug/L) | all year | RS2 |
| Lindane | daily maximum | report only (ug/L) | all year | RS2 |
| Nonylphenol | daily maximum | report only (ug/L) | all year | RS2 |
| pH, maximum | daily maximum | ≤ 9 SU | all year | RS2 |
| pH, minimum | daily minimum | ≥ 6.5 SU | all year | RS2 |
| Solids, total dissolved | daily maximum | ≤ 3000 mg/L | all year | RS2 |
| Mercury, dissolved [as Hg] | daily maximum | report only (ug/L) | all year | RS2 |
| Trihalomethane, tot. | daily maximum | report only (ug/L) | all year | RS2 |
| Azinphos-methyl | daily maximum | report only (ug/L) | all year | RS2 |
| Flow rate | 30-day average | report only (gal/d) | all year | SUM |
| Flow rate | 30-day average | report only (gal/d) | all year | SUM |
| Flow rate | daily maximum | < 500000 gal/d | all year | SUM |
| Flow rate | daily maximum | < 500000 gal/d | all year | SUM |
Cited limits by parameter: Nevada's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/NV0024232 · MCP: https://passage-data.com/mcp