Parowan City

NPDES permit UT0026158 · Minor POTW · effective, expires 2031-01-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

9values over a limit
0required values missing, on 0 form(s)
5of 12 forms filed late

Last period with anything received: 2026-07-31. Most often over: BOD, 5-day, 20 deg. C (2), Flow rate (2), Nitrogen, ammonia total [as N] (2).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (50)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMX MO AV report only all year
001Flow rateMX MO AV <= .474 MGD all year
001Flow rateDAILY MX <= .711 MGD all year
001Oxygen, dissolved [DO]DAILY MN >= 3 mg/L all year
001Oxygen, dissolved [DO]MO MIN >= 5 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 25 mg/L all year
001BOD, 5-day, 20 deg. CMX WK AV <= 35 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV report only all year
001BOD, 5-day, 20 deg. CMX WK AV report only all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMX MO AV <= 25 mg/L all year
001Solids, total suspendedMX WK AV <= 35 mg/L all year
001Solids, total suspendedMX MO AV report only all year
001Solids, total suspendedMX WK AV report only all year
001Oil & GreaseDAILY MX <= 10 mg/L all year
001Nitrogen, ammonia total [as N]MX MO AV report only all year
001Nitrogen, ammonia total [as N]MX MO AV <= .5 mg/L Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MX MO AV <= .7 mg/L Apr, May, Jun
001Nitrogen, ammonia total [as N]MX MO AV <= 1 mg/L Oct, Nov, Dec
001Nitrogen, ammonia total [as N]MX MO AV <= 1.5 mg/L Jan, Feb, Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 2.7 mg/L Jul, Aug, Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 2.7 mg/L Apr, May, Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 2.7 mg/L Oct, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 2.7 mg/L Jan, Feb, Mar
001Nitrogen, Kjeldahl, total [as N]MX MO AV report only all year
001Nitrogen, Kjeldahl, total [as N]MX MO AV report only all year
001Phosphorus, total [as P]MX MO AV report only all year
001Phosphorus, total [as P]ANNL MAX <= 1488 lb/yr all year
001Phosphorus, total [as P]MX MO AV report only all year
001Cyanide, total [as CN]ANNL AVG report only all year
001Arsenic, total [as As]ANNL AVG report only all year
001Cadmium, total [as Cd]ANNL AVG report only all year
001Chromium, total [as Cr]ANNL AVG report only all year
001Copper, total [as Cu]ANNL AVG report only all year
001Lead, total [as Pb]ANNL AVG report only all year
001Nickel, total [as Ni]ANNL AVG report only all year
001Silver, total [as Ag]ANNL AVG report only all year
001Zinc, total [as Zn]ANNL AVG report only all year
001Selenium, total [as Se]ANNL AVG report only all year
001Phosphate, ortho [as P]MX MO AV report only all year
001Chlorine, total residualMX MO AV report only all year
001Chlorine, total residualDAILY MX report only all year
001E. coliMX MO AV <= 126 #/100mL all year
001E. coliMX WK AV <= 158 #/100mL all year
001Nitrogen, nitrate total [as NO3]MX MO AV report only all year
001Nitrogen, nitrite total [as NO2]MX MO AV report only all year
001Mercury, total [as Hg]ANNL AVG report only all year
001BOD, 5-day, percent removalMINIMUM >= 85 % all year
001Solids, suspended percent removalMINIMUM >= 85 % all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states