Gunlock Water Treatment Plant

NPDES permit UT0026123 · Minor NON-POTW · expired, expires 2026-01-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2026-01-31 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit
0required values missing, on 0 form(s)
2of 16 forms filed late

Last period with anything received: 2026-08-31.

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 (36)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMX MO AV report only all year
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
001BOD, 20-day [20 deg. C]MX MO AV <= 25 mg/L all year
001BOD, 20-day [20 deg. C]MX 7D AV <= 35 mg/L 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 7D AV <= 35 mg/L all year
001Cyanide, total [as CN]ANNL MAX report only all year
001Arsenic, total [as As]MX MO AV report only all year
001Arsenic, total [as As]ANNL MAX report only all year
001Cadmium, total [as Cd]ANNL MAX report only all year
001Chromium, total [as Cr]ANNL MAX report only all year
001Copper, total [as Cu]ANNL MAX report only all year
001Iron, total [as Fe]MX MO AV report only all year
001Lead, total [as Pb]ANNL MAX report only all year
001Manganese, total [as Mn]MX MO AV report only all year
001Molybdenum, total [as Mo]ANNL MAX report only all year
001Nickel, total [as Ni]ANNL MAX report only all year
001Silver, total [as Ag]ANNL MAX report only all year
001Zinc, total [as Zn]ANNL MAX report only all year
001Selenium, total [as Se]DAILY MX <= .0046 mg/L all year
001Selenium, total [as Se]ANNL MAX report only all year
001Oil and greaseDAILY MX <= 10 mg/L all year
001Chlorine, total residualDAILY MX <= .29 mg/L Jul, Aug, Sep
001Chlorine, total residualDAILY MX <= .21 mg/L Oct, Nov, Dec
001Chlorine, total residualDAILY MX <= .16 mg/L Jan, Feb, Mar
001Chlorine, total residualDAILY MX <= .23 mg/L Apr, May, Jun
001E. coliMX MO AV <= 126 #/100mL all year
001E. coliMX 7D AV <= 157 #/100mL all year
001Solids, total dissolvedDAILY MX <= 2360 mg/L all year
001Solids, total dissolvedDAILY MX <= 1 ton/d all year
001Mercury, total [as Hg]ANNL AVG report only all year
001Flow, totalDAILY MX <= .02 MGD 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