Passage Data · Check a report · Use it from your AI

Parowan City

Sewage treatment plant, Parowan, Utah. NPDES permit UT0026158, in force until Jan 31, 2031. Last 12 months: over a limit 9 times (last April 2026), 4 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (32 values), form Y yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 242 required values missing, 11 of 13 reports late

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

Period endingParameterReportedLimitOver by
April 2026BOD, 5-day, 20 deg. C, maximum monthly average42 mg/L≤ 25 mg/L68%
April 2026BOD, 5-day, 20 deg. C, maximum weekly average42 mg/L≤ 35 mg/L20%
April 2026BOD, 5-day, percent removal, minimum58.8 %≥ 85 %175%
April 2026Flow rate, daily maximum.714 MGD≤ .711 MGD0%
April 2026Flow rate, maximum monthly average.707 MGD≤ .474 MGD49%
April 2026Nitrogen, ammonia total [as N], daily maximum6.95 mg/L≤ 2.7 mg/L157%
April 2026Nitrogen, ammonia total [as N], maximum monthly average6.95 mg/L≤ .7 mg/L893%
April 2026Oxygen, dissolved [DO], monthly minimum3.78 mg/L≥ 5 mg/L24%
April 2026Solids, suspended percent removal, minimum77.6 %≥ 85 %49%

Limits in force (50)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitmaximum monthly averagereport only (deg F)all year
Flow ratemaximum monthly average≤ .474 MGDall year
Flow ratedaily maximum≤ .711 MGDall year
Oxygen, dissolved [DO]daily minimum≥ 3 mg/Lall year
Oxygen, dissolved [DO]monthly 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 averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]maximum monthly average≤ .5 mg/LJul–Sep
Nitrogen, ammonia total [as N]maximum monthly average≤ .7 mg/LApr–Jun
Nitrogen, ammonia total [as N]maximum monthly average≤ 1 mg/LOct–Dec
Nitrogen, ammonia total [as N]maximum monthly average≤ 1.5 mg/LJan–Mar
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LJul–Sep
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LApr–Jun
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LOct–Dec
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LJan–Mar
Nitrogen, Kjeldahl, total [as N]maximum monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]maximum monthly averagereport only (mg/L)all year
Phosphorus, total [as P]maximum monthly averagereport only (mg/L)all year
Phosphorus, total [as P]annual maximum≤ 1488 lb/yrall year
Phosphorus, total [as P]maximum monthly averagereport only (mg/L)all year
Cyanide, total [as CN]annual averagereport only (mg/L)all year
Arsenic, total [as As]annual averagereport only (mg/L)all year
Cadmium, total [as Cd]annual averagereport only (mg/L)all year
Chromium, total [as Cr]annual averagereport only (mg/L)all year
Copper, total [as Cu]annual averagereport only (mg/L)all year
Lead, total [as Pb]annual averagereport only (mg/L)all year
Nickel, total [as Ni]annual averagereport only (mg/L)all year
Silver, total [as Ag]annual averagereport only (mg/L)all year
Zinc, total [as Zn]annual averagereport only (mg/L)all year
Selenium, total [as Se]annual averagereport only (mg/L)all year
Phosphate, ortho [as P]maximum monthly averagereport only (mg/L)all year
Chlorine, total residualmaximum monthly averagereport only (mg/L)all year
Chlorine, total residualdaily maximumreport only (mg/L)all year
E. colimaximum monthly average≤ 126 #/100mLall year
E. colimaximum weekly average≤ 158 #/100mLall year
Nitrogen, nitrate total [as NO3]maximum monthly averagereport only (mg/L)all year
Nitrogen, nitrite total [as NO2]maximum monthly averagereport only (mg/L)all year
Mercury, total [as Hg]annual averagereport only (mg/L)all year
BOD, 5-day, percent removalminimum≥ 85 %all year
Solids, suspended percent removalminimum≥ 85 %all year

How strict are these limits?

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

Check this month's numbers Email me before each report is due

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/UT0026158 · MCP: https://passage-data.com/mcp