SOUTH DAVIS SEWER DISTRICT-SOUTH PLANT

NPDES permit UT0021628 · Major POTW · effective, expires 2026-12-08 · 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

0values over a limit
0required values missing, on 0 form(s)
0of 19 forms filed late

Last period with anything received: 2026-07-31.

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 (64)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMX MO AV report only all year
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 25 mg/L Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001BOD, 5-day, 20 deg. CMX MO AV <= 20 mg/L Jul, Aug, Sep
001BOD, 5-day, 20 deg. CMX WK AV <= 35 mg/L Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001BOD, 5-day, 20 deg. CMX WK AV <= 27 mg/L Jul, Aug, Sep
001BOD, 5-day, 20 deg. CMX MO 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
001Oil & GreaseDAILY MX <= 10 mg/L all year
001Nitrogen, ammonia total [as N]MX MO AV <= 8 mg/L Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MX MO AV <= 14 mg/L Jan, Feb, Mar
001Nitrogen, ammonia total [as N]MX MO AV <= 12 mg/L Apr, May, Jun
001Nitrogen, ammonia total [as N]MX MO AV <= 20 mg/L Oct, Nov, Dec
001Nitrogen, ammonia total [as N]30DA AVG report only all year
001Nitrogen, ammonia total [as N]MX WK AV <= 30 mg/L Jul, Aug, Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 17 mg/L Jan, Feb, Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 26 mg/L Apr, May, Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 40 mg/L Oct, Nov, Dec
001Nitrogen, Kjeldahl, total [as N]30DA AVG report only all year
001Nitrogen, Kjeldahl, total [as N]30DA AVG report only all year
001Phosphorus, total [as P]30DA AVG report only all year
001Phosphorus, total [as P]30DA AVG report only all year
001Cyanide, free [as free]MX MO AV report only all year
001Arsenic, total [as As]QRTR AVG report only all year
001Arsenic, total [as As]QRTR AVG report only all year
001Cadmium, total [as Cd]QRTR AVG report only all year
001Cadmium, total [as Cd]QRTR AVG report only all year
001Chromium, total [as Cr]QRTR AVG report only all year
001Chromium, total [as Cr]QRTR AVG report only all year
001Copper, total [as Cu]QRTR AVG report only all year
001Copper, total [as Cu]QRTR AVG report only all year
001Lead, total [as Pb]QRTR AVG report only all year
001Lead, total [as Pb]QRTR AVG report only all year
001Molybdenum, total [as Mo]QRTR AVG report only all year
001Molybdenum, total [as Mo]QRTR AVG report only all year
001Nickel, total [as Ni]QRTR AVG report only all year
001Nickel, total [as Ni]QRTR AVG report only all year
001Silver, total [as Ag]QRTR AVG report only all year
001Silver, total [as Ag]QRTR AVG report only all year
001Zinc, total [as Zn]QRTR AVG report only all year
001Zinc, total [as Zn]QRTR AVG report only all year
001Selenium, total [as Se]QRTR AVG report only all year
001Selenium, total [as Se]QRTR AVG report only all year
001Phosphate, ortho [as P]30DA AVG report only all year
001Flow, in conduit or thru treatment plantMX MO AV <= 4 MGD all year
001Chlorine, total residualDAILY MX <= .253 mg/L Oct, Nov, Dec
001Chlorine, total residualDAILY MX <= .321 mg/L Jul, Aug, Sep
001Chlorine, total residualDAILY MX <= .134 mg/L Jan, Feb, Mar
001Chlorine, total residualDAILY MX <= .163 mg/L Apr, May, Jun
001E. coliMX MO AV <= 126 #/100mL all year
001E. coliMX WK AV <= 157 #/100mL all year
001Solids, total dissolved [TDS]MX MO AV report only 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]QRTR AVG report only all year
001Mercury, total [as Hg]QRTR AVG report only all year
001BOD, 5-day, percent removalMN % RMV >= 85 % all year
001Solids, suspended percent removalMN % RMV >= 85 % all year
001Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiaDAILY MX report only Jan, Feb, Mar, Jul, Aug, Sep
001Pass/Fail Static Renewal 7Day Chronic Pimephales promelasDAILY MX report only Apr, May, Jun, Oct, Nov, Dec

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