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Mountain Green Sewer Improveme

Sewage treatment plant, major discharger, Mountain Green, Utah. NPDES permit UT0024732, in force until Jul 31, 2030. Last 12 months: over a limit 18 times (last March 2026), 1 of 18 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (32 values), form W quarterly (1 value), form M twice a year, form T yearly, form Y yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
6 values over a limit, 0 required values missing, 2 of 14 reports late

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

All 18 values over a limit
Period endingParameterReportedLimitOver by
December 2025Phosphorus, total [as P], annual average5.23 mg/L≤ 1 mg/L423%
December 2025Solids, suspended percent removal, minimum % removal80.2 %≥ 85 %32%
December 2025Solids, total suspended, maximum monthly average33 mg/L≤ 25 mg/L32%
December 2025Solids, total suspended, maximum weekly average52 mg/L≤ 35 mg/L49%
January 2026BOD, 5-day, 20 deg. C, maximum monthly average26.5 mg/L≤ 25 mg/L6%
January 2026E. coli, maximum monthly average355.5 #/100mL≤ 126 #/100mL182%
January 2026E. coli, maximum weekly average980 #/100mL≤ 158 #/100mL520%
January 2026Solids, total suspended, maximum monthly average33.5 mg/L≤ 25 mg/L34%
January 2026Solids, total suspended, maximum weekly average61 mg/L≤ 35 mg/L74%
February 2026BOD, 5-day, 20 deg. C, maximum monthly average27.75 mg/L≤ 25 mg/L11%
February 2026BOD, 5-day, 20 deg. C, maximum weekly average44 mg/L≤ 35 mg/L26%
February 2026E. coli, maximum monthly average1206.25 #/100mL≤ 126 #/100mL857%
February 2026E. coli, maximum weekly average2400 #/100mL≤ 158 #/100mL1419%
March 2026BOD, 5-day, 20 deg. C, maximum monthly average37.75 mg/L≤ 25 mg/L51%
March 2026BOD, 5-day, 20 deg. C, maximum weekly average56 mg/L≤ 35 mg/L60%
March 2026BOD, 5-day, percent removal, minimum % removal80.93 %≥ 85 %27%
March 2026E. coli, maximum monthly average1101.75 #/100mL≤ 126 #/100mL774%
March 2026E. coli, maximum weekly average2400 #/100mL≤ 158 #/100mL1419%

Limits in force (75)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 25 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 35 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cmaximum weekly averagereport only (mg/L)all 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
Solids, total suspendedmaximum monthly averagereport only (mg/L)all year
Solids, total suspendedmaximum weekly averagereport only (mg/L)all year
Oil & Greasedaily maximum≤ 10 mg/Lall year
Nitrogen, ammonia total [as N]maximum monthly average≤ 94.56 mg/LJul–Sep
Nitrogen, ammonia total [as N]maximum monthly average≤ 49.8 mg/LOct–Dec
Nitrogen, ammonia total [as N]maximum monthly average≤ 63.27 mg/LJan–Mar
Nitrogen, ammonia total [as N]maximum monthly average≤ 89.89 mg/LApr–Jun
Nitrogen, ammonia total [as N]daily maximum≤ 94.56 mg/LJul–Sep
Nitrogen, ammonia total [as N]daily maximum≤ 49.8 mg/LOct–Dec
Nitrogen, ammonia total [as N]daily maximum≤ 67.78 mg/LJan–Mar
Nitrogen, ammonia total [as N]daily maximum≤ 89.89 mg/LApr–Jun
Nitrogen, Kjeldahl, total [as N]30-day averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]30-day averagereport only (mg/L)all year
Phosphorus, total [as P]30-day averagereport only (mg/L)all year
Phosphorus, total [as P]annual average≤ 1 mg/Lall year
Phosphorus, total [as P]annual averagereport only (mg/L)all year
Phosphorus, total [as P]annual averagereport only (lb/yr)all year
Phosphorus, total [as P]30-day averagereport only (mg/L)all year
Arsenic, total recoverabledaily maximumreport only (mg/L)all year
Arsenic, total recoverabledaily maximumreport only (mg/L)all year
Selenium, total recoverabledaily maximumreport only (mg/L)all year
Selenium, total recoverabledaily maximumreport only (mg/L)all year
Nickel, total recoverabledaily maximumreport only (mg/L)all year
Nickel, total recoverabledaily maximumreport only (mg/L)all year
Silver total recoverabledaily maximumreport only (mg/L)all year
Silver total recoverabledaily maximumreport only (mg/L)all year
Zinc, total recoverabledaily maximumreport only (mg/L)all year
Zinc, total recoverabledaily maximumreport only (mg/L)all year
Cadmium, total recoverabledaily maximumreport only (mg/L)all year
Cadmium, total recoverabledaily maximumreport only (mg/L)all year
Lead, total recoverabledaily maximumreport only (mg/L)all year
Lead, total recoverabledaily maximumreport only (mg/L)all year
Chromium, total recoverabledaily maximumreport only (mg/L)all year
Chromium, total recoverabledaily maximumreport only (mg/L)all year
Copper, total recoverabledaily maximumreport only (mg/L)all year
Copper, total recoverabledaily maximumreport only (mg/L)all year
Molybdenum, total recoverabledaily maximumreport only (mg/L)all year
Molybdenum, total recoverabledaily maximumreport only (mg/L)all year
Phosphate, ortho [as P]30-day averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantmaximum monthly average≤ 1.5 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmaximum monthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmaximum monthly average≤ .735 mg/LJul–Sep
Chlorine, total residualmaximum monthly average≤ .224 mg/LOct–Dec
Chlorine, total residualmaximum monthly average≤ .225 mg/LJan–Mar
Chlorine, total residualmaximum monthly average≤ .706 mg/LApr–Jun
Chlorine, total residualdaily maximum≤ .747 mg/LJul–Sep
Chlorine, total residualdaily maximum≤ .233 mg/LOct–Dec
Chlorine, total residualdaily maximum≤ .234 mg/LJan–Mar
Chlorine, total residualdaily maximum≤ .718 mg/LApr–Jun
E. colimaximum monthly average≤ 126 #/100mLall year
E. colimaximum weekly average≤ 158 #/100mLall year
Solids, total dissolved30-day averagereport only (mg/L)all year
Nitrogen, nitrate total [as NO3]30-day averagereport only (mg/L)all year
Nitrogen, nitrite total [as NO2]30-day averagereport only (mg/L)all year
Mercury, total recoverabledaily maximumreport only (mg/L)all year
Mercury, total recoverabledaily maximumreport only (mg/L)all year
Organics, total toxic [TTO]valuereport only (mg/L)all year
Organics, total toxic [TTO]valuereport only (mg/L)all year
Cyanide, total recoverabledaily maximumreport only (mg/L)all year
Cyanide, total recoverabledaily maximumreport only (mg/L)all year
BOD, 5-day, percent removalminimum % removal≥ 85 %all year
Solids, suspended percent removalminimum % removal≥ 85 %all year
Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubiadaily maximumreport only (pass=0;fail=1)Apr, May, Jun, Oct, Nov, Dec
Pass/Fail Static Renewal 48Hr Acute Pimephales promelasdaily maximumreport only (pass=0;fail=1)Jan, Feb, Mar, Jul, Aug, Sep

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/UT0024732 · MCP: https://passage-data.com/mcp