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ST George City Corporation

Sewage treatment plant, major discharger, Saint George, Utah. NPDES permit UT0024686, in force until Jan 31, 2031. Last 12 months: over a limit 4 times (last May 2026), 2 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (30 values), outfall 001R form A monthly (9 values), outfall 002 form A monthly (29 values), outfall 003 form A monthly (29 values), outfall SUM form A monthly (1 value), outfall 001 form P quarterly, and 8 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 32 reports late

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

Period endingOutfallParameterReportedLimitOver by
October 2025001E. coli, maximum weekly average245 #/100mL≤ 157 #/100mL56%
December 2025001BOD, 5-day, 20 deg. C, maximum monthly average15.9 mg/L≤ 15 mg/L6%
February 2026001BOD, 5-day, 20 deg. C, maximum monthly average13 mg/L≤ 10.6 mg/L23%
May 2026001RChlorine, total residual, minimum.9 mg/L≥ 1 mg/L10%

Limits in force (207)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademaximum weekly averagereport only (deg C)all year001
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 10.6 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 35 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum monthly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmaximum weekly averagereport only (mg/L)all year001
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmaximum monthly average≤ 25 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 35 mg/Lall year001
Solids, total suspendedmaximum monthly averagereport only (mg/L)all year001
Solids, total suspendedmaximum weekly averagereport only (mg/L)all year001
Oil & Greasedaily maximum≤ 10 mg/Lall year001
Nitrogen, ammonia total [as N]maximum monthly average≤ 3.8 mg/LJan–Mar001
Nitrogen, ammonia total [as N]maximum monthly average≤ 3.1 mg/LApr–Jun001
Nitrogen, ammonia total [as N]maximum monthly average≤ 2 mg/LJul–Sep001
Nitrogen, ammonia total [as N]maximum monthly average≤ 2.8 mg/LOct–Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 17.8 mg/LJan–Mar001
Nitrogen, ammonia total [as N]daily maximum≤ 14.1 mg/LApr–Jun001
Nitrogen, ammonia total [as N]daily maximum≤ 11.7 mg/LJul–Sep001
Nitrogen, ammonia total [as N]daily maximum≤ 12.9 mg/LOct–Dec001
Nitrogen, Kjeldahl, total [as N]maximum monthly averagereport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]maximum monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]annual average≤ 1 mg/Lall year001
Phosphorus, total [as P]maximum monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]annual average≤ 2.5 mg/LJan, Feb, Mar, Apr, May, Jun, Dec001
Phosphorus, total [as P]maximum monthly averagereport only (mg/L)all year001
Cyanide, total [as CN]quarterly maximumreport only (mg/L)all year001
Cyanide, total [as CN]quarterly maximumreport only (mg/L)all year001
Arsenic, total [as As]quarterly maximumreport only (mg/L)all year001
Arsenic, total [as As]quarterly maximumreport only (mg/L)all year001
Boron, total [as B]quarterly maximumreport only (mg/L)all year001
Cadmium, total [as Cd]quarterly maximumreport only (mg/L)all year001
Cadmium, total [as Cd]quarterly maximumreport only (mg/L)all year001
Chromium, total [as Cr]quarterly maximumreport only (mg/L)all year001
Chromium, total [as Cr]quarterly maximumreport only (mg/L)all year001
Copper, total [as Cu]quarterly maximumreport only (mg/L)all year001
Copper, total [as Cu]quarterly maximumreport only (mg/L)all year001
Lead, total [as Pb]quarterly maximumreport only (mg/L)all year001
Lead, total [as Pb]quarterly maximumreport only (mg/L)all year001
Molybdenum, total [as Mo]quarterly maximumreport only (mg/L)all year001
Molybdenum, total [as Mo]quarterly maximumreport only (mg/L)all year001
Nickel, total [as Ni]quarterly maximumreport only (mg/L)all year001
Nickel, total [as Ni]quarterly maximumreport only (mg/L)all year001
Silver, total [as Ag]quarterly maximumreport only (mg/L)all year001
Silver, total [as Ag]quarterly maximumreport only (mg/L)all year001
Zinc, total [as Zn]quarterly maximumreport only (mg/L)all year001
Zinc, total [as Zn]quarterly maximumreport only (mg/L)all year001
Selenium, total [as Se]quarterly maximumreport only (mg/L)all year001
Selenium, total [as Se]quarterly maximumreport only (mg/L)all year001
Phosphorus, orthomaximum monthly averagereport only (mg/L)all year001
E. colimaximum monthly average≤ 126 #/100mLall year001
E. colimaximum weekly average≤ 157 #/100mLall year001
Solids, total dissolveddaily maximum≤ 2360 mg/Lall year001
Solids, total dissolvedmaximum monthly averagereport only (mg/L)all year001
Nitrogen, nitrate total [as NO3]maximum monthly averagereport only (mg/L)all year001
Nitrogen, nitrite total [as NO2]maximum monthly averagereport only (mg/L)all year001
Mercury, total [as Hg]quarterly maximumreport only (mg/L)all year001
Mercury, total [as Hg]quarterly maximumreport only (mg/L)all year001
Organics, total toxic [TTO]valuereport only (mg/L)all year001
Organics, total toxic [TTO]valuereport only (mg/L)all year001
BOD, 5-day, percent removalminimum≥ 85 %all year001
Solids, suspended percent removalminimum≥ 85 %all year001
Flow, totalmaximum monthly averagereport only (MGD)all year001
Flow, totalmaximum monthly averagereport only (MGD)all year001
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximum≤ 0 pass=0;fail=1Apr, May, Jun, Oct, Nov, Dec001
Pass/Fail Static Renewal 7Day Chronic Pimephales promelasdaily maximum≤ 0 pass=0;fail=1Jan, Feb, Mar, Jul, Aug, Sep001
Turbiditymaximum daily average≤ 2 NTUall year001R
Turbiditymaximum≤ 5 NTUall year001R
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 10 mg/Lall year001R
pHminimum≥ 6 SUall year001R
pHmaximum≤ 9 SUall year001R
Chlorine, total residualminimum≥ 1 mg/Lall year001R
E. coli7-day median≤ 0 #/100mLall year001R
E. colimaximum≤ 9 #/100mLall year001R
Flow, totalmaximum monthly averagereport only (MGD)all year001R
Temperature, water deg. centigrademaximum weekly averagereport only (deg C)all year002
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year002
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 20 mg/Lall year002
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 35 mg/Lall year002
BOD, 5-day, 20 deg. Cmaximum monthly averagereport only (mg/L)all year002
BOD, 5-day, 20 deg. Cmaximum weekly averagereport only (mg/L)all year002
pHdaily minimum≥ 6.5 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendedmaximum monthly average≤ 25 mg/Lall year002
Solids, total suspendedmaximum weekly average≤ 35 mg/Lall year002
Solids, total suspendedmaximum monthly averagereport only (mg/L)all year002
Solids, total suspendedmaximum weekly averagereport only (mg/L)all year002
Oil & Greasedaily maximum≤ 10 mg/Lall year002
Nitrogen, ammonia total [as N]maximum monthly average≤ 2.9 mg/LApr–Jun002
Nitrogen, ammonia total [as N]maximum monthly average≤ 2.7 mg/LJul–Sep002
Nitrogen, ammonia total [as N]maximum monthly average≤ 2.9 mg/LOct–Dec002
Nitrogen, ammonia total [as N]maximum monthly average≤ 2 mg/LJan–Mar002
Nitrogen, ammonia total [as N]daily maximum≤ 11.8 mg/LApr–Jun002
Nitrogen, ammonia total [as N]daily maximum≤ 11.7 mg/LJul–Sep002
Nitrogen, ammonia total [as N]daily maximum≤ 11.8 mg/LOct–Dec002
Nitrogen, ammonia total [as N]daily maximum≤ 11 mg/LJan–Mar002
Nitrogen, Kjeldahl, total [as N]maximum monthly averagereport only (mg/L)all year002
Nitrogen, Kjeldahl, total [as N]maximum monthly averagereport only (mg/L)all year002
Phosphorus, total [as P]annual average≤ 1 mg/Lall year002
Phosphorus, total [as P]maximum monthly averagereport only (mg/L)all year002
Phosphorus, total [as P]maximum monthly averagereport only (mg/L)all year002
Cyanide, total [as CN]quarterly maximumreport only (mg/L)all year002
Cyanide, total [as CN]quarterly maximumreport only (mg/L)all year002
Arsenic, total [as As]quarterly maximumreport only (mg/L)all year002
Arsenic, total [as As]quarterly maximumreport only (mg/L)all year002
Boron, total [as B]quarterly maximumreport only (mg/L)all year002
Cadmium, total [as Cd]quarterly maximumreport only (mg/L)all year002
Cadmium, total [as Cd]quarterly maximumreport only (mg/L)all year002
Chromium, total [as Cr]quarterly maximumreport only (mg/L)all year002
Chromium, total [as Cr]quarterly maximumreport only (mg/L)all year002
Copper, total [as Cu]quarterly maximumreport only (mg/L)all year002
Copper, total [as Cu]quarterly maximumreport only (mg/L)all year002
Lead, total [as Pb]quarterly maximumreport only (mg/L)all year002
Lead, total [as Pb]quarterly maximumreport only (mg/L)all year002
Molybdenum, total [as Mo]quarterly maximumreport only (mg/L)all year002
Molybdenum, total [as Mo]quarterly maximumreport only (mg/L)all year002
Nickel, total [as Ni]quarterly maximumreport only (mg/L)all year002
Nickel, total [as Ni]quarterly maximumreport only (mg/L)all year002
Silver, total [as Ag]quarterly maximumreport only (mg/L)all year002
Silver, total [as Ag]quarterly maximumreport only (mg/L)all year002
Zinc, total [as Zn]quarterly maximumreport only (mg/L)all year002
Zinc, total [as Zn]quarterly maximumreport only (mg/L)all year002
Selenium, total [as Se]quarterly maximumreport only (mg/L)all year002
Selenium, total [as Se]quarterly maximumreport only (mg/L)all year002
Phosphorus, orthomaximum monthly averagereport only (mg/L)all year002
E. colimaximum monthly average≤ 126 #/100mLall year002
E. colimaximum weekly average≤ 157 #/100mLall year002
Solids, total dissolveddaily maximum≤ 2360 mg/Lall year002
Solids, total dissolvedmaximum monthly averagereport only (mg/L)all year002
Nitrogen, nitrate total [as NO3]maximum monthly averagereport only (mg/L)all year002
Nitrogen, nitrite total [as NO2]maximum monthly averagereport only (mg/L)all year002
Mercury, total [as Hg]quarterly maximumreport only (mg/L)all year002
Mercury, total [as Hg]quarterly maximumreport only (mg/L)all year002
Organics, total toxic [TTO]valuereport only (mg/L)all year002
Organics, total toxic [TTO]valuereport only (mg/L)all year002
BOD, 5-day, percent removalminimum≥ 85 %all year002
Solids, suspended percent removalminimum≥ 85 %all year002
Flow, totalmaximum monthly averagereport only (MGD)all year002
Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubiadaily maximum≤ 0 pass=0;fail=1Apr, May, Jun, Oct, Nov, Dec002
Pass/Fail Static Renewal 48Hr Acute Pimephales promelasdaily maximum≤ 0 pass=0;fail=1Jan, Feb, Mar, Jul, Aug, Sep002
Temperature, water deg. centigrademaximum weekly averagereport only (deg C)all year003
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year003
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 20 mg/Lall year003
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 35 mg/Lall year003
BOD, 5-day, 20 deg. Cmaximum monthly averagereport only (mg/L)all year003
BOD, 5-day, 20 deg. Cmaximum weekly averagereport only (mg/L)all year003
pHdaily minimum≥ 6.5 SUall year003
pHdaily maximum≤ 9 SUall year003
Solids, total suspendedmaximum monthly average≤ 25 mg/Lall year003
Solids, total suspendedmaximum weekly average≤ 35 mg/Lall year003
Solids, total suspendedmaximum monthly averagereport only (mg/L)all year003
Solids, total suspendedmaximum weekly averagereport only (mg/L)all year003
Oil & Greasedaily maximum≤ 10 mg/Lall year003
Nitrogen, ammonia total [as N]maximum monthly average≤ 2.9 mg/LApr–Jun003
Nitrogen, ammonia total [as N]maximum monthly average≤ 2.7 mg/LJul–Sep003
Nitrogen, ammonia total [as N]maximum monthly average≤ 2.9 mg/LOct–Dec003
Nitrogen, ammonia total [as N]maximum monthly average≤ 2 mg/LJan–Mar003
Nitrogen, ammonia total [as N]daily maximum≤ 11.8 mg/LApr–Jun003
Nitrogen, ammonia total [as N]daily maximum≤ 11.7 mg/LJul–Sep003
Nitrogen, ammonia total [as N]daily maximum≤ 11.8 mg/LOct–Dec003
Nitrogen, ammonia total [as N]daily maximum≤ 11 mg/LJan–Mar003
Nitrogen, Kjeldahl, total [as N]maximum monthly averagereport only (mg/L)all year003
Nitrogen, Kjeldahl, total [as N]maximum monthly averagereport only (mg/L)all year003
Phosphorus, total [as P]annual average≤ 1 mg/Lall year003
Phosphorus, total [as P]maximum monthly averagereport only (mg/L)all year003
Phosphorus, total [as P]maximum monthly averagereport only (mg/L)all year003
Cyanide, total [as CN]quarterly maximumreport only (mg/L)all year003
Cyanide, total [as CN]quarterly maximumreport only (mg/L)all year003
Arsenic, total [as As]quarterly maximumreport only (mg/L)all year003
Arsenic, total [as As]quarterly maximumreport only (mg/L)all year003
Boron, total [as B]quarterly maximumreport only (mg/L)all year003
Cadmium, total [as Cd]quarterly maximumreport only (mg/L)all year003
Cadmium, total [as Cd]quarterly maximumreport only (mg/L)all year003
Chromium, total [as Cr]quarterly maximumreport only (mg/L)all year003
Chromium, total [as Cr]quarterly maximumreport only (mg/L)all year003
Copper, total [as Cu]quarterly maximumreport only (mg/L)all year003
Copper, total [as Cu]quarterly maximumreport only (mg/L)all year003
Lead, total [as Pb]quarterly maximumreport only (mg/L)all year003
Lead, total [as Pb]quarterly maximumreport only (mg/L)all year003
Molybdenum, total [as Mo]quarterly maximumreport only (mg/L)all year003
Molybdenum, total [as Mo]quarterly maximumreport only (mg/L)all year003
Nickel, total [as Ni]quarterly maximumreport only (mg/L)all year003
Nickel, total [as Ni]quarterly maximumreport only (mg/L)all year003
Silver, total [as Ag]quarterly maximumreport only (mg/L)all year003
Silver, total [as Ag]quarterly maximumreport only (mg/L)all year003
Zinc, total [as Zn]quarterly maximumreport only (mg/L)all year003
Zinc, total [as Zn]quarterly maximumreport only (mg/L)all year003
Selenium, total [as Se]quarterly maximumreport only (mg/L)all year003
Selenium, total [as Se]quarterly maximumreport only (mg/L)all year003
Phosphorus, orthomaximum monthly averagereport only (mg/L)all year003
E. colimaximum monthly average≤ 126 #/100mLall year003
E. colimaximum weekly average≤ 157 #/100mLall year003
Solids, total dissolveddaily maximum≤ 2360 mg/Lall year003
Solids, total dissolvedmaximum monthly averagereport only (mg/L)all year003
Nitrogen, nitrate total [as NO3]maximum monthly averagereport only (mg/L)all year003
Nitrogen, nitrite total [as NO2]maximum monthly averagereport only (mg/L)all year003
Mercury, total [as Hg]quarterly maximumreport only (mg/L)all year003
Mercury, total [as Hg]quarterly maximumreport only (mg/L)all year003
Organics, total toxic [TTO]valuereport only (mg/L)all year003
Organics, total toxic [TTO]valuereport only (mg/L)all year003
BOD, 5-day, percent removalminimum≥ 85 %all year003
Solids, suspended percent removalminimum≥ 85 %all year003
Flow, totalmaximum monthly averagereport only (MGD)all year003
Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubiadaily maximum≤ 0 pass=0;fail=1Apr, May, Jun, Oct, Nov, Dec003
Pass/Fail Static Renewal 48Hr Acute Pimephales promelasdaily maximum≤ 0 pass=0;fail=1Jan, Feb, Mar, Jul, Aug, Sep003
Flow, totalmaximum monthly average≤ 25.2 MGDall yearSUM

How strict are these limits?

Cited limits by parameter: Utah'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/UT0024686 · MCP: https://passage-data.com/mcp