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Hyrum City Corporation

Sewage treatment plant, major discharger, Hyrum, Utah. NPDES permit UT0023205, in force until Feb 28, 2030. Last 12 months: no values over a limit, 2 of 31 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (28 values), outfall 001 form P quarterly (24 values), outfall 001 form W quarterly (2 values), outfall 001R form A monthly (8 values), outfall 001 form Y yearly
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 2 required values missing, 2 of 29 reports late

Limits in force (72)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimum≥ 4 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 25 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≤ 4.4 mg/LOct–Dec001
Nitrogen, ammonia total [as N]maximum monthly average≤ 4.4 mg/LApr–Jun001
Nitrogen, ammonia total [as N]maximum monthly average≤ 3 mg/LJul–Sep001
Nitrogen, ammonia total [as N]maximum monthly average≤ 4 mg/LJan–Mar001
Nitrogen, ammonia total [as N]daily maximum≤ 11 mg/LOct–Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 11 mg/LApr–Jun001
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/LJul–Sep001
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/LJan–Mar001
Nitrogen, Kjeldahl, total [as N]30-day averagereport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]30-day averagereport only (mg/L)all year001
Phosphorus, total [as P]30-day averagereport only (mg/L)all year001
Phosphorus, total [as P]annual maximum≤ 563 kg/yrall year001
Phosphorus, total [as P]30-day averagereport only (mg/L)all year001
Cyanide, total [as CN]daily maximumreport only (mg/L)all year001
Cyanide, total [as CN]daily maximumreport only (mg/L)all year001
Arsenic, total [as As]daily maximumreport only (mg/L)all year001
Arsenic, total [as As]daily maximumreport only (mg/L)all year001
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year001
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year001
Chromium, total [as Cr]daily maximumreport only (mg/L)all year001
Chromium, total [as Cr]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Lead, total [as Pb]daily maximumreport only (mg/L)all year001
Lead, total [as Pb]daily maximumreport only (mg/L)all year001
Molybdenum, total [as Mo]daily maximumreport only (mg/L)all year001
Molybdenum, total [as Mo]daily maximumreport only (mg/L)all year001
Nickel, total [as Ni]daily maximumreport only (mg/L)all year001
Nickel, total [as Ni]daily maximumreport only (mg/L)all year001
Silver, total [as Ag]daily maximumreport only (mg/L)all year001
Silver, total [as Ag]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Selenium, total [as Se]daily maximumreport only (mg/L)all year001
Selenium, total [as Se]daily maximumreport only (mg/L)all year001
Phosphate, ortho [as P]30-day averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantmaximum monthly average≤ 2 MGDall year001
E. colimaximum monthly geometric mean≤ 126 #/100mLall year001
E. colimaximum 7-day geometric mean≤ 157 #/100mLall year001
Phosphorus, Totalmaximum monthly average≤ 1 mg/LJan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec001
Phosphorus, Totaldaily maximum≤ .1 mg/LJul–Sep001
Solids, total dissolveddaily maximum≤ 1616 mg/Lall year001
Nitrogen, nitrate total [as NO3]30-day averagereport only (mg/L)all year001
Nitrogen, nitrite total [as NO2]30-day averagereport only (mg/L)all year001
Mercury, total [as Hg]daily maximumreport only (mg/L)all year001
Mercury, total [as Hg]daily 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 % removal≥ 85 %all year001
Solids, suspended percent removalminimum % removal≥ 85 %all year001
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximum≤ 0 pass=0;fail=1all year001
Pass/Fail Static Renewal 7Day Chronic Pimephales promelasdaily maximum≤ 0 pass=0;fail=1all year001
Flow ratedaily maximumreport only (MGD)all year001R
Turbiditydaily average≤ 2 NTUall year001R
Turbiditydaily maximum≤ 5 NTUall year001R
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 10 mg/Lall year001R
pHdaily minimum≥ 6 SUall year001R
pHdaily maximum≤ 9 SUall year001R
E. colimaximum 7-day geometric mean≤ 0 #/100mLall year001R
E. colidaily maximum≤ 9 #/100mLall year001R

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/UT0023205 · MCP: https://passage-data.com/mcp