Bismarck City Public Works

NPDES permit ND0023434 · Major POTW · effective, expires 2028-06-30 · 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)
1of 28 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 (217)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MN report only all year
001Temperature, water deg. centigrade30DA AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Stream flow, instantaneous30DA AVG report only all year
001Stream flow, instantaneousDAILY MX report only all year
001ConductivityMINIMUM report only all year
001ConductivityAVERAGE report only all year
001ConductivityMAXIMUM report only all year
001pHMINIMUM report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM report only all year
001pHMAXIMUM <= 9 SU all year
001pHMINIMUM report only all year
001pHMAXIMUM report only all year
001Alkalinity, total [as CaCO3]MINIMUM report only all year
001Alkalinity, total [as CaCO3]AVERAGE report only all year
001Alkalinity, total [as CaCO3]MAXIMUM report only all year
001Bicarbonate ion- [as HCO3]MINIMUM report only all year
001Bicarbonate ion- [as HCO3]AVERAGE report only all year
001Bicarbonate ion- [as HCO3]MAXIMUM report only all year
001Carbonate ion- [as CO3]MINIMUM report only all year
001Carbonate ion- [as CO3]AVERAGE report only all year
001Carbonate ion- [as CO3]MAXIMUM report only all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedMX WK AV <= 45 mg/L all year
001Solids, total suspendedWD report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedWKLY MAX report only all year
001Oil & GreaseDAILY MX <= 10 mg/L all year
001Nitrogen, total [as N]DAILY MN report only all year
001Nitrogen, total [as N]DAILY AV report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY MN report only all year
001Nitrogen, ammonia total [as N]30DA AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Phosphorus, total [as P]MINIMUM report only all year
001Phosphorus, total [as P]WKLY AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Cyanide, total [as CN]DAILY MN report only all year
001Cyanide, total [as CN]DAILY AV report only all year
001Cyanide, total [as CN]DAILY MX report only all year
001Cyanide, total [as CN]DAILY MN report only all year
001Cyanide, total [as CN]DAILY AV report only all year
001Cyanide, total [as CN]DAILY MX report only all year
001Hardness, total [as CaCO3]DAILY MN report only all year
001Hardness, total [as CaCO3]DAILY AV report only all year
001Hardness, total [as CaCO3]DAILY MX report only all year
001Calcium, total [as Ca]MINIMUM report only all year
001Calcium, total [as Ca]AVERAGE report only all year
001Calcium, total [as Ca]MAXIMUM report only all year
001Magnesium, total [as Mg]MINIMUM report only all year
001Magnesium, total [as Mg]AVERAGE report only all year
001Magnesium, total [as Mg]MAXIMUM report only all year
001Sodium, total [as Na]MINIMUM report only all year
001Sodium, total [as Na]AVERAGE report only all year
001Sodium, total [as Na]MAXIMUM report only all year
001Sodium adsorption ratioMINIMUM report only all year
001Sodium adsorption ratioAVERAGE report only all year
001Sodium adsorption ratioMAXIMUM report only all year
001Potassium, total [as K]MINIMUM report only all year
001Potassium, total [as K]AVERAGE report only all year
001Potassium, total [as K]MAXIMUM report only all year
001Chloride [as Cl]MINIMUM report only all year
001Chloride [as Cl]AVERAGE report only all year
001Chloride [as Cl]MAXIMUM report only all year
001Sulfate, total [as SO4]MINIMUM report only all year
001Sulfate, total [as SO4]AVERAGE report only all year
001Sulfate, total [as SO4]MAXIMUM report only all year
001Fluoride, total [as F]MINIMUM report only all year
001Fluoride, total [as F]AVERAGE report only all year
001Fluoride, total [as F]MAXIMUM report only all year
001Arsenic, total [as As]DAILY MN report only all year
001Arsenic, total [as As]DAILY AV report only all year
001Arsenic, total [as As]DAILY MX report only all year
001Arsenic, total [as As]DAILY MN report only all year
001Arsenic, total [as As]DAILY AV report only all year
001Arsenic, total [as As]DAILY MX report only all year
001Beryllium, total [as Be]DAILY MN report only all year
001Beryllium, total [as Be]DAILY AV report only all year
001Beryllium, total [as Be]DAILY MX report only all year
001Beryllium, total [as Be]DAILY MN report only all year
001Beryllium, total [as Be]DAILY AV report only all year
001Beryllium, total [as Be]DAILY MX report only all year
001Cadmium, total [as Cd]DAILY MN report only all year
001Cadmium, total [as Cd]DAILY AV report only all year
001Cadmium, total [as Cd]DAILY MX report only all year
001Cadmium, total [as Cd]DAILY MN report only all year
001Cadmium, total [as Cd]DAILY AV report only all year
001Cadmium, total [as Cd]DAILY MX report only all year
001Chromium, total [as Cr]DAILY MN report only all year
001Chromium, total [as Cr]DAILY AV report only all year
001Chromium, total [as Cr]DAILY MX report only all year
001Chromium, total [as Cr]DAILY MN report only all year
001Chromium, total [as Cr]DAILY AV report only all year
001Chromium, total [as Cr]DAILY MX report only all year
001Copper, total [as Cu]DAILY MN report only all year
001Copper, total [as Cu]DAILY AV report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Copper, total [as Cu]DAILY MN report only all year
001Copper, total [as Cu]DAILY AV report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Iron, total [as Fe]MINIMUM report only all year
001Iron, total [as Fe]AVERAGE report only all year
001Iron, total [as Fe]MAXIMUM report only all year
001Lead, total [as Pb]DAILY MN report only all year
001Lead, total [as Pb]DAILY AV report only all year
001Lead, total [as Pb]DAILY MX report only all year
001Lead, total [as Pb]DAILY MN report only all year
001Lead, total [as Pb]DAILY AV report only all year
001Lead, total [as Pb]DAILY MX report only all year
001Manganese, total [as Mn]MINIMUM report only all year
001Manganese, total [as Mn]AVERAGE report only all year
001Manganese, total [as Mn]MAXIMUM report only all year
001Thallium, total [as Tl]DAILY MN report only all year
001Thallium, total [as Tl]DAILY AV report only all year
001Thallium, total [as Tl]DAILY MX report only all year
001Thallium, total [as Tl]DAILY MN report only all year
001Thallium, total [as Tl]DAILY AV report only all year
001Thallium, total [as Tl]DAILY MX report only all year
001Nickel, total [as Ni]DAILY MN report only all year
001Nickel, total [as Ni]DAILY AV report only all year
001Nickel, total [as Ni]DAILY MX report only all year
001Nickel, total [as Ni]DAILY MN report only all year
001Nickel, total [as Ni]DAILY AV report only all year
001Nickel, total [as Ni]DAILY MX report only all year
001Silver, total [as Ag]DAILY MN report only all year
001Silver, total [as Ag]DAILY AV report only all year
001Silver, total [as Ag]DAILY MX report only all year
001Silver, total [as Ag]DAILY MN report only all year
001Silver, total [as Ag]DAILY AV report only all year
001Silver, total [as Ag]DAILY MX report only all year
001Zinc, total [as Zn]DAILY MN report only all year
001Zinc, total [as Zn]DAILY AV report only all year
001Zinc, total [as Zn]DAILY MX report only all year
001Zinc, total [as Zn]DAILY MN report only all year
001Zinc, total [as Zn]DAILY AV report only all year
001Zinc, total [as Zn]DAILY MX report only all year
001Antimony, total [as Sb]DAILY MN report only all year
001Antimony, total [as Sb]DAILY AV report only all year
001Antimony, total [as Sb]DAILY MX report only all year
001Antimony, total [as Sb]DAILY MN report only all year
001Antimony, total [as Sb]DAILY AV report only all year
001Antimony, total [as Sb]DAILY MX report only all year
001Selenium, total [as Se]DAILY MN report only all year
001Selenium, total [as Se]DAILY AV report only all year
001Selenium, total [as Se]DAILY MX report only all year
001Selenium, total [as Se]DAILY MN report only all year
001Selenium, total [as Se]DAILY AV report only all year
001Selenium, total [as Se]DAILY MX report only all year
001Total phenolsDAILY MN report only all year
001Total phenolsDAILY AV report only all year
001Total phenolsDAILY MX report only all year
001Total phenolsDAILY MN report only all year
001Total phenolsDAILY AV report only all year
001Total phenolsDAILY MX 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
001Chlorine, total residualDAILY MX <= .1 mg/L all year
001E. coliMOAV GEO <= 126 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001E. coliDAILY MX <= 409 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001Sodium, % total cationsMINIMUM report only all year
001Sodium, % total cationsAVERAGE report only all year
001Sodium, % total cationsMAXIMUM report only all year
001Solids, total dissolved [TDS]MINIMUM report only all year
001Solids, total dissolved [TDS]AVERAGE report only all year
001Solids, total dissolved [TDS]MAXIMUM report only all year
001Mercury, total [as Hg]DAILY MN report only all year
001Mercury, total [as Hg]DAILY AV report only all year
001Mercury, total [as Hg]DAILY MX report only all year
001Mercury, total [as Hg]DAILY MN report only all year
001Mercury, total [as Hg]DAILY AV report only all year
001Mercury, total [as Hg]DAILY MX report only all year
001Total toxic organics [TTO] [40 CFR433]DAILY MN report only all year
001Total toxic organics [TTO] [40 CFR433]DAILY AV report only all year
001Total toxic organics [TTO] [40 CFR433]DAILY MX report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 20 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WD report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG report only all year
001BOD, carbonaceous, percent removalMN VALUE >= 85 % all year
001Solids, suspended percent removalMN VALUE >= 85 % all year
001Turbidity, lab, NTUMINIMUM report only all year
001Turbidity, lab, NTUAVERAGE report only all year
001Turbidity, lab, NTUMAXIMUM report only all year
001Flow, totalMO TOTAL report only all year
001Hardness, tot calc. [Ca, Mg, Fe] as CaC03MINIMUM report only all year
001Hardness, tot calc. [Ca, Mg, Fe] as CaC03AVERAGE report only all year
001Hardness, tot calc. [Ca, Mg, Fe] as CaC03MAXIMUM report only all year
001Oil and grease visualTOTAL report only all year
001Toxic Units Static Renewal 48Hr Acute Ceriodaphnia dubiaM0 <= 1 tox acute all year
001TU Static Renewal 96Hr Acute Pimphales promelasM0 <= 1 tox acute all year
001TU Static Renewal 7-Day Chronic Ceriodaphnia dubiaM0 report only all year
001TU Static Renewal 7-Day Chronic Pimphales promelasM0 report only all year
002pHMINIMUM report only all year
002pHMAXIMUM report only all year
002Solids, total suspendedDAILY MN report only all year
002Solids, total suspended30DA AVG report only all year
002Solids, total suspendedMX 7D AV report only all year
002Oil & GreaseDAILY MN report only all year
002Oil & Grease30DA AVG report only all year
002Oil & GreaseDAILY MX report only all year
002Nitrogen, ammonia total [as N]DAILY MN report only all year
002Nitrogen, ammonia total [as N]30DA AVG report only all year
002Nitrogen, ammonia total [as N]DAILY MX report only all year
002Flow, in conduit or thru treatment plant30DA AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002E. coliDAILY MN report only all year
002E. coli30DA AVG report only all year
002E. coliDAILY MX report only all year
002Flow, totalTOTAL report only all year
002BOD, carbonaceous [5 day, 20 C]DAILY MN report only all year
002BOD, carbonaceous [5 day, 20 C]DAILY AV report only all year
002BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
002Oil and grease visualTOTAL report only all year

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