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Tremonton City Corp

Sewage treatment plant, major discharger, Tremonton, Utah. NPDES permit UT0020303, in force until Sep 30, 2028. Last 12 months: over a limit 49 times (last September 2026), 1 of 23 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (27 values), form Q quarterly (2 values), form W quarterly (1 value), form P twice a year, form T yearly
Renewal application due
Apr 3, 2028 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 23 reports late

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

All 49 values over a limit
Period endingParameterReportedLimitOver by
March 2026BOD, 5-day, 20 deg. C, maximum weekly average41.5 mg/L≤ 35 mg/L19%
March 2026E. coli, maximum monthly average542 #/100mL≤ 126 #/100mL330%
March 2026E. coli, maximum weekly average1986 #/100mL≤ 157 #/100mL1165%
March 2026Oxygen, dissolved [DO], daily minimum4.3 mg/L≥ 5 mg/L14%
April 2026BOD, 5-day, 20 deg. C, maximum monthly average72 mg/L≤ 25 mg/L188%
April 2026BOD, 5-day, 20 deg. C, maximum weekly average146 mg/L≤ 35 mg/L317%
April 2026BOD, 5-day, percent removal, minimum % removal77.1 %≥ 85 %53%
April 2026E. coli, maximum monthly average2419 #/100mL≤ 126 #/100mL1820%
April 2026E. coli, maximum weekly average2419 #/100mL≤ 157 #/100mL1441%
April 2026Nitrogen, ammonia total [as N], maximum monthly average17.4 mg/L≤ 15 mg/L16%
April 2026Oxygen, dissolved [DO], daily minimum1.4 mg/L≥ 5 mg/L72%
April 2026Solids, suspended percent removal, minimum % removal57.5 %≥ 85 %183%
April 2026Solids, total suspended, maximum monthly average88 mg/L≤ 25 mg/L252%
April 2026Solids, total suspended, maximum weekly average154 mg/L≤ 35 mg/L340%
May 2026BOD, 5-day, 20 deg. C, maximum monthly average68 mg/L≤ 25 mg/L172%
May 2026BOD, 5-day, 20 deg. C, maximum weekly average63.5 mg/L≤ 35 mg/L81%
May 2026BOD, 5-day, percent removal, minimum % removal83.4 %≥ 85 %11%
May 2026E. coli, maximum monthly average387.6 #/100mL≤ 126 #/100mL208%
May 2026E. coli, maximum weekly average1440 #/100mL≤ 157 #/100mL817%
May 2026Oxygen, dissolved [DO], daily minimum1.6 mg/L≥ 5 mg/L68%
May 2026Solids, suspended percent removal, minimum % removal83.4 %≥ 85 %11%
May 2026Solids, total suspended, maximum monthly average55 mg/L≤ 25 mg/L120%
May 2026Solids, total suspended, maximum weekly average69.5 mg/L≤ 35 mg/L99%
June 2026BOD, 5-day, 20 deg. C, maximum monthly average33 mg/L≤ 25 mg/L32%
June 2026BOD, 5-day, 20 deg. C, maximum weekly average39.5 mg/L≤ 35 mg/L13%
June 2026E. coli, maximum monthly average648 #/100mL≤ 126 #/100mL414%
June 2026E. coli, maximum weekly average395.9 #/100mL≤ 157 #/100mL152%
June 2026Oxygen, dissolved [DO], daily minimum.5 mg/L≥ 5 mg/L90%
June 2026Solids, suspended percent removal, minimum % removal77.1 %≥ 85 %53%
June 2026Solids, total suspended, maximum monthly average38 mg/L≤ 25 mg/L52%
June 2026Solids, total suspended, maximum weekly average45 mg/L≤ 35 mg/L29%
July 2026BOD, 5-day, 20 deg. C, maximum monthly average28 mg/L≤ 25 mg/L12%
July 2026Nitrogen, ammonia total [as N], maximum monthly average6.4 mg/L≤ 2.5 mg/L156%
July 2026Oxygen, dissolved [DO], daily minimum.3 mg/L≥ 5 mg/L94%
July 2026Solids, total suspended, maximum weekly average36.5 mg/L≤ 35 mg/L4%
August 2026BOD, 5-day, 20 deg. C, maximum monthly average31 mg/L≤ 25 mg/L24%
August 2026BOD, 5-day, 20 deg. C, maximum weekly average52 mg/L≤ 35 mg/L49%
August 2026E. coli, maximum monthly average1440 #/100mL≤ 126 #/100mL1043%
August 2026E. coli, maximum weekly average1440 #/100mL≤ 157 #/100mL817%
August 2026Nitrogen, ammonia total [as N], daily maximum13 mg/L≤ 12 mg/L8%
August 2026Nitrogen, ammonia total [as N], maximum monthly average8.6 mg/L≤ 2.5 mg/L244%
August 2026Oxygen, dissolved [DO], daily minimum.4 mg/L≥ 5 mg/L92%
August 2026Solids, total suspended, maximum weekly average93 mg/L≤ 35 mg/L166%
September 2026BOD, 5-day, 20 deg. C, maximum monthly average28 mg/L≤ 25 mg/L12%
September 2026BOD, 5-day, 20 deg. C, maximum weekly average40 mg/L≤ 35 mg/L14%
September 2026E. coli, maximum monthly average1440 #/100mL≤ 126 #/100mL1043%
September 2026E. coli, maximum weekly average1440 #/100mL≤ 157 #/100mL817%
September 2026Nitrogen, ammonia total [as N], maximum monthly average7.2 mg/L≤ 2.5 mg/L188%
September 2026Oxygen, dissolved [DO], daily minimum.3 mg/L≥ 5 mg/L94%

Limits in force (83)

ParameterStatisticLimitMonths
Flow ratemaximum monthly average≤ 2 MGDall year
Flow ratedaily maximum≤ 3 MGDall year
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
Nitrogen, ammonia total [as N]maximum monthly average≤ 15 mg/LJan–Mar
Nitrogen, ammonia total [as N]maximum monthly average≤ 15 mg/LApr–Jun
Nitrogen, ammonia total [as N]maximum monthly average≤ 2.5 mg/LJul–Sep
Nitrogen, ammonia total [as N]daily maximum≤ 25 mg/LJan–Mar
Nitrogen, ammonia total [as N]daily maximum≤ 24.5 mg/LApr–Jun
Nitrogen, ammonia total [as N]daily maximum≤ 12 mg/LJul–Sep
Nitrogen, ammonia total [as N]maximum monthly average≤ 5 mg/LOct–Dec
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/LOct–Dec
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly maximumreport only (mg/L)all year
Cyanide, total [as CN]semi-annual averagereport only (mg/L)all year
Cyanide, total [as CN]semi-annual maximumreport only (mg/L)all year
Cyanide, total [as CN]semi-annual averagereport only (mg/L)all year
Cyanide, total [as CN]semi-annual maximumreport only (mg/L)all year
Arsenic, total [as As]semi-annual averagereport only (mg/L)all year
Arsenic, total [as As]semi-annual maximumreport only (mg/L)all year
Arsenic, total [as As]semi-annual averagereport only (mg/L)all year
Arsenic, total [as As]semi-annual maximumreport only (mg/L)all year
Cadmium, total [as Cd]semi-annual averagereport only (mg/L)all year
Cadmium, total [as Cd]semi-annual maximumreport only (mg/L)all year
Cadmium, total [as Cd]semi-annual averagereport only (mg/L)all year
Cadmium, total [as Cd]semi-annual maximumreport only (mg/L)all year
Chromium, total [as Cr]semi-annual averagereport only (mg/L)all year
Chromium, total [as Cr]semi-annual maximumreport only (mg/L)all year
Chromium, total [as Cr]semi-annual averagereport only (mg/L)all year
Chromium, total [as Cr]semi-annual maximumreport only (mg/L)all year
Copper, total [as Cu]semi-annual averagereport only (mg/L)all year
Copper, total [as Cu]semi-annual maximumreport only (mg/L)all year
Copper, total [as Cu]semi-annual averagereport only (mg/L)all year
Copper, total [as Cu]semi-annual maximumreport only (mg/L)all year
Lead, total [as Pb]semi-annual averagereport only (mg/L)all year
Lead, total [as Pb]semi-annual maximumreport only (mg/L)all year
Lead, total [as Pb]semi-annual averagereport only (mg/L)all year
Lead, total [as Pb]semi-annual maximumreport only (mg/L)all year
Molybdenum, total [as Mo]semi-annual averagereport only (mg/L)all year
Molybdenum, total [as Mo]semi-annual maximumreport only (mg/L)all year
Molybdenum, total [as Mo]semi-annual averagereport only (mg/L)all year
Molybdenum, total [as Mo]semi-annual maximumreport only (mg/L)all year
Nickel, total [as Ni]semi-annual averagereport only (mg/L)all year
Nickel, total [as Ni]semi-annual maximumreport only (mg/L)all year
Nickel, total [as Ni]semi-annual averagereport only (mg/L)all year
Nickel, total [as Ni]semi-annual maximumreport only (mg/L)all year
Silver, total [as Ag]semi-annual averagereport only (mg/L)all year
Silver, total [as Ag]semi-annual maximumreport only (mg/L)all year
Silver, total [as Ag]semi-annual averagereport only (mg/L)all year
Silver, total [as Ag]semi-annual maximumreport only (mg/L)all year
Zinc, total [as Zn]semi-annual averagereport only (mg/L)all year
Zinc, total [as Zn]semi-annual maximumreport only (mg/L)all year
Zinc, total [as Zn]semi-annual averagereport only (mg/L)all year
Zinc, total [as Zn]semi-annual maximumreport only (mg/L)all year
Selenium, total [as Se]quarterly maximumreport only (mg/L)all year
Selenium, total [as Se]semi-annual averagereport only (mg/L)all year
Selenium, total [as Se]semi-annual maximumreport only (mg/L)all year
Oil and greasedaily maximum≤ 10 mg/Lall year
Phosphate, ortho [as P]daily maximumreport only (mg/L)all year
E. colimaximum monthly average≤ 126 #/100mLall year
E. colimaximum weekly average≤ 157 #/100mLall year
Nitrogen, nitrate total [as NO3]daily maximumreport only (mg/L)all year
Nitrogen, nitrite total [as NO2]daily maximumreport only (mg/L)all year
Mercury, total [as Hg]quarterly maximumreport only (mg/L)all year
Mercury, total [as Hg]semi-annual averagereport only (mg/L)all year
Mercury, total [as Hg]semi-annual maximumreport only (mg/L)all year
Organics, total toxic [TTO]annual maximumreport only (mg/L)all year
Organics, total toxic [TTO]annual 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 7 Day Chronic Ceriodaphnia dubiaquarterly maximum≤ 0 pass=0;fail=1Jan, Feb, Mar, Jul, Aug, Sep
Pass/Fail Static Renewal 7Day Chronic Pimephales promelasquarterly maximum≤ 0 pass=0;fail=1Apr, May, Jun, Oct, Nov, Dec

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/UT0020303 · MCP: https://passage-data.com/mcp