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City of St. George

Water Supply, Saint George, Utah. NPDES permit UT0026123, in force until Jan 31, 2031. Last 12 months: no values over a limit, 2 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (19 values), form W quarterly (1 value), form P every 60 months
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 3 of 17 reports late

Limits in force (31)

ParameterStatisticLimitMonths
Temperature, water deg. centigrademaximum monthly averagereport only (deg C)all year
Oxygen, dissolved [DO]daily minimum≥ 5.5 mg/Lall year
BOD, 20-day [20 deg. C]maximum monthly average≤ 25 mg/Lall year
BOD, 20-day [20 deg. C]maximum 7-day average≤ 35 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 7-day average≤ 35 mg/Lall year
Cyanide, total [as CN]annual maximumreport only (mg/L)all year
Arsenic, total [as As]maximum monthly averagereport only (mg/L)all year
Cadmium, total [as Cd]annual maximumreport only (mg/L)all year
Chromium, total [as Cr]annual maximumreport only (mg/L)all year
Copper, total [as Cu]annual maximumreport only (mg/L)all year
Iron, total [as Fe]maximum monthly averagereport only (mg/L)all year
Lead, total [as Pb]annual maximumreport only (mg/L)all year
Manganese, total [as Mn]maximum monthly averagereport only (mg/L)all year
Nickel, total [as Ni]annual maximumreport only (mg/L)all year
Silver, total [as Ag]annual maximumreport only (mg/L)all year
Zinc, total [as Zn]annual maximumreport only (mg/L)all year
Selenium, total [as Se]daily maximum≤ .0046 mg/Lall year
Selenium, total [as Se]annual maximumreport only (mg/L)all year
Oil and greasedaily maximum≤ 10 mg/Lall year
Chlorine, total residualdaily maximum≤ .08 mg/Lall year
E. colimaximum monthly average≤ 126 #/100mLall year
E. colimaximum 7-day average≤ 158 #/100mLall year
Solids, total dissolveddaily maximum≤ 2360 mg/Lall year
Solids, total dissolveddaily maximumreport only (ton/d)all year
Mercury, total [as Hg]annual averagereport only (mg/L)all year
Flow, totaldaily maximum≤ .02 MGDall year
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximumreport only (pass=0;fail=1)Jan, Feb, Mar, Jul, Aug, Sep
Pass/Fail Static Renewal 7Day Chronic Pimephales promelasdaily maximumreport only (pass=0;fail=1)Apr, May, Jun, Oct, Nov, Dec

How strict are these limits?

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

Same industry: the 11 Water Supply permits in Utah.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/UT0026123 · MCP: https://passage-data.com/mcp