Passage Data · Check a report · Use it from your AI

Energy Fuels Resources USA Inc

Uranium-Radium-Vanadium Ores, Gateway, Colorado. NPDES permit CO0047562 expired Feb 29, 2020; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (45 values), form Q quarterly (2 values), form X quarterly (6 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 20 reports late

Limits in force (68)

ParameterStatisticLimitMonths
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspended30-day average≤ 20 mg/Lall year
Solids, total suspendedmaximum 7-day average≤ 30 mg/Lall year
Nitrogen, inorganic totaldaily maximumreport only (mg/L)all year
Arsenic, total recoverable30-day average≤ 100 ug/Lall year
Arsenic, total recoverable30-day average≤ 10 ug/Lall year
Iron, total recoverable30-day averagereport only (ug/L)all year
Iron, total recoverable30-day average≤ 1000 ug/Lall year
Iron, dissolved [as Fe]30-day averagereport only (ug/L)all year
Manganese, dissolved [as Mn]30-day average≤ 200 ug/Lall year
Manganese, dissolved [as Mn]30-day average≤ 50 ug/Lall year
Manganese, dissolved [as Mn]daily maximumreport only (ug/L)all year
Manganese, dissolved [as Mn]daily maximumreport only (ug/L)all year
Zinc, total recoverable30-day average≤ 500 ug/Lall year
Zinc, total recoverabledaily maximum≤ 1000 ug/Lall year
Aluminum, total recoverable30-day averagereport only (ug/L)all year
Aluminum, total recoverable30-day average≤ 189 ug/Lall year
Aluminum, total recoverabledaily maximumreport only (ug/L)all year
Aluminum, total recoverabledaily maximum≤ 1324 ug/Lall year
Vanadium, total recoverable30-day averagereport only (ug/L)all year
Vanadium, total recoverabledaily maximumreport only (ug/L)all year
Molybdenum, total recoverable30-day averagereport only (ug/L)all year
Zinc, potentially dissolved30-day averagereport only (ug/L)all year
Zinc, potentially dissolved30-day average≤ 65 ug/Lall year
Zinc, potentially dissolveddaily maximumreport only (ug/L)all year
Zinc, potentially dissolveddaily maximum≤ 89 ug/Lall year
Silver, potentially dissolved30-day averagereport only (ug/L)all year
Silver, potentially dissolveddaily maximumreport only (ug/L)all year
Copper, potentially dissolved30-day averagereport only (ug/L)all year
Copper, potentially dissolveddaily maximumreport only (ug/L)all year
Cadmium, potentially dissolvd30-day averagereport only (ug/L)all year
Cadmium, potentially dissolvddaily maximumreport only (ug/L)all year
Lead, potentially dissolvd30-day averagereport only (ug/L)all year
Lead, potentially dissolvd30-day average≤ 1.2 ug/Lall year
Lead, potentially dissolvddaily maximumreport only (ug/L)all year
Lead, potentially dissolvddaily maximum≤ 30 ug/Lall year
Nickel, potentially dissolvd30-day averagereport only (ug/L)all year
Nickel, potentially dissolvddaily maximumreport only (ug/L)all year
Selenium, potentially dissolvd30-day average≤ 20 ug/Lall year
Selenium, potentially dissolvd30-day average≤ 4.6 ug/Lall year
Selenium, potentially dissolvddaily maximumreport only (ug/L)all year
Selenium, potentially dissolvddaily maximum≤ 18 ug/Lall year
Oil and greaseinstantaneous maximum≤ 10 mg/Lall year
Chromium, trivalent total recoverabledaily maximumreport only (ug/L)all year
Radium 226, dissolved30-day average≤ 3 pCi/Lall year
Radium 226, dissolveddaily maximum≤ 5 pCi/Lall year
Radium 226 + radium 228, totaldaily maximum≤ 5 pCi/Lall year
Uranium, total30-day average≤ 700 ug/Lall year
Uranium, total30-day average≤ 30 ug/Lall year
Uranium, totaldaily maximum≤ 1100 ug/Lall year
Uranium, totaldaily maximum≤ 1100 ug/Lall year
Flow, in conduit or thru treatment plant30-day average≤ .03 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Sulfide-hydrogen sulfide [undissociated]30-day averagereport only (mg/L)all year
Sulfide-hydrogen sulfide [undissociated]30-day average≤ .002 mg/Lall year
Solids, total dissolved30-day averagereport only (mg/L)all year
Solids, total dissolveddaily maximumreport only (mg/L)all year
Mercury, total [as Hg]30-day averagereport only (ug/L)all year
Chemical Oxygen Demand [COD]30-day average≤ 100 mg/Lall year
Chemical Oxygen Demand [COD]daily maximum≤ 200 mg/Lall year
Oil and grease visualinstantaneous maximumreport only (abst=0;prst=1)all year
Static Renewal 7 Day Chronic Ceriodaphnia dubiasingle samplereport only (tox chronic)all year
Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum valuereport only (tox chronic)all year
Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum value≥ 100 tox chronicall year
Static Renewal 7 Day Chronic Pimephales promelassingle samplereport only (tox chronic)all year
Static Renewal 7 Day Chronic Pimephales promelasminimum valuereport only (tox chronic)all year
Static Renewal 7 Day Chronic Pimephales promelasminimum value≥ 100 tox chronicall year

How strict are these limits?

Cited limits by parameter: Colorado's rules and the federal ones.

Same industry: the 30 Metal Mining permits in Colorado.

Check this month's numbers Email me before each report is due

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/CO0047562 · MCP: https://passage-data.com/mcp