Dwight City Of

NPDES permit ND0025127 · Minor POTW · effective, expires 2030-03-31 · 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

0values over a limit
74required values missing, on 3 form(s)
1of 3 forms filed late

Last period with anything received: 2025-09-30.

Reporting

Reports are due about 30 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (61)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMO AVG <= 25 mg/L all year
001BOD, 5-day, 20 deg. CMX WK AV <= 45 mg/L all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedMX WK AV <= 45 mg/L all year
001Oil & GreaseDAILY MX <= 10 mg/L all year
001Cyanide, total [as CN]DAILY MX report only all year
001Cyanide, total [as CN]WKLY AVG report only all year
001Cyanide, total [as CN]MO AVG report only all year
001Hardness, total [as CaCO3]DAILY MX report only all year
001Hardness, total [as CaCO3]WKLY AVG report only all year
001Hardness, total [as CaCO3]MO AVG report only all year
001Arsenic, total [as As]DAILY MX report only all year
001Arsenic, total [as As]WKLY AVG report only all year
001Arsenic, total [as As]MO AVG report only all year
001Beryllium, total [as Be]DAILY MX report only all year
001Beryllium, total [as Be]WKLY AVG report only all year
001Beryllium, total [as Be]MO AVG report only all year
001Cadmium, total [as Cd]DAILY MX report only all year
001Cadmium, total [as Cd]WKLY AVG report only all year
001Cadmium, total [as Cd]MO AVG report only all year
001Chromium, total [as Cr]DAILY MX report only all year
001Chromium, total [as Cr]WKLY AVG report only all year
001Chromium, total [as Cr]MO AVG report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Copper, total [as Cu]WKLY AVG report only all year
001Copper, total [as Cu]MO AVG report only all year
001Lead, total [as Pb]DAILY MX report only all year
001Lead, total [as Pb]WKLY AVG report only all year
001Lead, total [as Pb]MO AVG report only all year
001Thallium, total [as Tl]DAILY MX report only all year
001Thallium, total [as Tl]WKLY AVG report only all year
001Thallium, total [as Tl]MO AVG report only all year
001Nickel, total [as Ni]DAILY MX report only all year
001Nickel, total [as Ni]WKLY AVG report only all year
001Nickel, total [as Ni]MO AVG report only all year
001Silver, total [as Ag]DAILY MX report only all year
001Silver, total [as Ag]WKLY AVG report only all year
001Silver, total [as Ag]MO AVG report only all year
001Zinc, total [as Zn]DAILY MX report only all year
001Zinc, total [as Zn]WKLY AVG report only all year
001Zinc, total [as Zn]MO AVG report only all year
001Antimony, total [as Sb]DAILY MX report only all year
001Antimony, total [as Sb]WKLY AVG report only all year
001Antimony, total [as Sb]MO AVG report only all year
001Selenium, total [as Se]DAILY MX report only all year
001Selenium, total [as Se]WKLY AVG report only all year
001Selenium, total [as Se]MO AVG report only all year
001Total phenolsDAILY MX report only all year
001Total phenolsWKLY AVG report only all year
001Total phenolsMO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001E. coliMOAV GEO <= 126 #/100mL all year
001E. coliDAILY MX <= 409 #/100mL all year
001Mercury, total [as Hg]DAILY MX report only all year
001Mercury, total [as Hg]WKLY AVG report only all year
001Mercury, total [as Hg]MO AVG report only all year
001Flow, totalMO TOTAL report only all year
001Oil and grease visualTOTAL report only 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