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Riverton City

Industrial or other facility, major discharger, Riverton, Utah. NPDES permit UT0026212, in force until Mar 31, 2027. Last 12 months: over a limit 3 times (last March 2026), 4 of 25 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (12 values), form M monthly (11 values), form W quarterly (1 value)
Renewal application due
Oct 2, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 5 of 28 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
February 2026Flow, in conduit or thru treatment plant, maximum monthly average1.393893 MGD≤ 1 MGD39%
March 2026Flow, in conduit or thru treatment plant, maximum monthly average1.133419 MGD≤ 1 MGD13%
March 2026Oxygen, dissolved [DO], daily minimum4.9 mg/L≥ 5 mg/L2%

Limits in force (25)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year
pHdaily minimum> 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmaximum monthly average≤ 25 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 35 mg/Lall year
Oil & Greasedaily maximum≤ 10 mg/Lall year
Cyanide, total [as CN]30-day averagereport only (mg/L)all year
Selenium, total recoverabledaily maximum≤ .0072 mg/Lall year
Arsenic, total [as As]30-day averagereport only (mg/L)all year
Cadmium, total [as Cd]30-day averagereport only (mg/L)all year
Chromium, hexavalent [as Cr]30-day averagereport only (mg/L)all year
Copper, total [as Cu]30-day averagereport only (mg/L)all year
Iron, total [as Fe]30-day averagereport only (mg/L)all year
Lead, total [as Pb]30-day averagereport only (mg/L)all year
Nickel, total [as Ni]30-day averagereport only (mg/L)all year
Silver, total [as Ag]30-day averagereport only (mg/L)all year
Zinc, total [as Zn]30-day averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantmaximum monthly average≤ 1 MGDall year
E. colimaximum monthly average≤ 126 #/100mLall year
E. colimaximum weekly average≤ 157 #/100mLall year
Solids, total dissolved [TDS]daily maximum≤ 1200 mg/Lall year
Mercury, total recoverable30-day averagereport only (mg/L)all year
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximum≤ 0 pass=0;fail=1Apr, May, Jun, Oct, Nov, Dec
Pass/Fail Static Renewal 7Day Chronic Pimephales promelasdaily maximum≤ 0 pass=0;fail=1Jan, Feb, Mar, Jul, Aug, Sep

How strict are these limits?

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

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/UT0026212 · MCP: https://passage-data.com/mcp