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Sewage treatment plant, major discharger, Bismarck, North Dakota. NPDES permit ND0023434, in force until Jun 30, 2028. Last 12 months: no values over a limit, 1 of 30 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | daily minimum | report only (deg C) | all year | 001 |
| Temperature, water deg. centigrade | 30-day average | report only (deg C) | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 001 |
| Stream flow, instantaneous | 30-day average | report only (cfs) | all year | 001 |
| Stream flow, instantaneous | daily maximum | report only (cfs) | all year | 001 |
| Conductivity | minimum | report only (umho/cm) | all year | 001 |
| Conductivity | average | report only (umho/cm) | all year | 001 |
| Conductivity | maximum | report only (umho/cm) | all year | 001 |
| pH | minimum | report only (SU) | all year | 001 |
| pH | minimum | ≥ 6.5 SU | all year | 001 |
| pH | maximum | report only (SU) | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| pH | minimum | report only (SU) | all year | 001 |
| pH | maximum | report only (SU) | all year | 001 |
| Alkalinity, total [as CaCO3] | minimum | report only (mg/L) | all year | 001 |
| Alkalinity, total [as CaCO3] | average | report only (mg/L) | all year | 001 |
| Alkalinity, total [as CaCO3] | maximum | report only (mg/L) | all year | 001 |
| Bicarbonate ion- [as HCO3] | minimum | report only (mg/L) | all year | 001 |
| Bicarbonate ion- [as HCO3] | average | report only (mg/L) | all year | 001 |
| Bicarbonate ion- [as HCO3] | maximum | report only (mg/L) | all year | 001 |
| Carbonate ion- [as CO3] | minimum | report only (mg/L) | all year | 001 |
| Carbonate ion- [as CO3] | average | report only (mg/L) | all year | 001 |
| Carbonate ion- [as CO3] | maximum | report only (mg/L) | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | weekly minimum | report only (mg/L) | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | weekly maximum | report only (mg/L) | all year | 001 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 001 |
| Nitrogen, total [as N] | daily minimum | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | daily average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily minimum | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | minimum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | weekly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Cyanide, total [as CN] | daily minimum | report only (ug/L) | all year | 001 |
| Cyanide, total [as CN] | daily average | report only (ug/L) | all year | 001 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 001 |
| Cyanide, total [as CN] | daily minimum | report only (ug/L) | all year | 001 |
| Cyanide, total [as CN] | daily average | report only (ug/L) | all year | 001 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 001 |
| Hardness, total [as CaCO3] | daily minimum | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | daily average | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 001 |
| Calcium, total [as Ca] | minimum | report only (mg/L) | all year | 001 |
| Calcium, total [as Ca] | average | report only (mg/L) | all year | 001 |
| Calcium, total [as Ca] | maximum | report only (mg/L) | all year | 001 |
| Magnesium, total [as Mg] | minimum | report only (mg/L) | all year | 001 |
| Magnesium, total [as Mg] | average | report only (mg/L) | all year | 001 |
| Magnesium, total [as Mg] | maximum | report only (mg/L) | all year | 001 |
| Sodium, total [as Na] | minimum | report only (mg/L) | all year | 001 |
| Sodium, total [as Na] | average | report only (mg/L) | all year | 001 |
| Sodium, total [as Na] | maximum | report only (mg/L) | all year | 001 |
| Sodium adsorption ratio | minimum | report only (Ratio) | all year | 001 |
| Sodium adsorption ratio | average | report only (Ratio) | all year | 001 |
| Sodium adsorption ratio | maximum | report only (Ratio) | all year | 001 |
| Potassium, total [as K] | minimum | report only (mg/L) | all year | 001 |
| Potassium, total [as K] | average | report only (mg/L) | all year | 001 |
| Potassium, total [as K] | maximum | report only (mg/L) | all year | 001 |
| Chloride [as Cl] | minimum | report only (mg/L) | all year | 001 |
| Chloride [as Cl] | average | report only (mg/L) | all year | 001 |
| Chloride [as Cl] | maximum | report only (mg/L) | all year | 001 |
| Sulfate, total [as SO4] | minimum | report only (mg/L) | all year | 001 |
| Sulfate, total [as SO4] | average | report only (mg/L) | all year | 001 |
| Sulfate, total [as SO4] | maximum | report only (mg/L) | all year | 001 |
| Fluoride, total [as F] | minimum | report only (mg/L) | all year | 001 |
| Fluoride, total [as F] | average | report only (mg/L) | all year | 001 |
| Fluoride, total [as F] | maximum | report only (mg/L) | all year | 001 |
| Arsenic, total [as As] | daily minimum | report only (ug/L) | all year | 001 |
| Arsenic, total [as As] | daily average | report only (ug/L) | all year | 001 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | all year | 001 |
| Arsenic, total [as As] | daily minimum | report only (ug/L) | all year | 001 |
| Arsenic, total [as As] | daily average | report only (ug/L) | all year | 001 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | all year | 001 |
| Beryllium, total [as Be] | daily minimum | report only (ug/L) | all year | 001 |
| Beryllium, total [as Be] | daily average | report only (ug/L) | all year | 001 |
| Beryllium, total [as Be] | daily maximum | report only (ug/L) | all year | 001 |
| Beryllium, total [as Be] | daily minimum | report only (ug/L) | all year | 001 |
| Beryllium, total [as Be] | daily average | report only (ug/L) | all year | 001 |
| Beryllium, total [as Be] | daily maximum | report only (ug/L) | all year | 001 |
| Cadmium, total [as Cd] | daily minimum | report only (ug/L) | all year | 001 |
| Cadmium, total [as Cd] | daily average | report only (ug/L) | all year | 001 |
| Cadmium, total [as Cd] | daily maximum | report only (ug/L) | all year | 001 |
| Cadmium, total [as Cd] | daily minimum | report only (ug/L) | all year | 001 |
| Cadmium, total [as Cd] | daily average | report only (ug/L) | all year | 001 |
| Cadmium, total [as Cd] | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, total [as Cr] | daily minimum | report only (ug/L) | all year | 001 |
| Chromium, total [as Cr] | daily average | report only (ug/L) | all year | 001 |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, total [as Cr] | daily minimum | report only (ug/L) | all year | 001 |
| Chromium, total [as Cr] | daily average | report only (ug/L) | all year | 001 |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year | 001 |
| Copper, total [as Cu] | daily minimum | report only (ug/L) | all year | 001 |
| Copper, total [as Cu] | daily average | report only (ug/L) | all year | 001 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year | 001 |
| Copper, total [as Cu] | daily minimum | report only (ug/L) | all year | 001 |
| Copper, total [as Cu] | daily average | report only (ug/L) | all year | 001 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year | 001 |
| Iron, total [as Fe] | minimum | report only (mg/L) | all year | 001 |
| Iron, total [as Fe] | average | report only (mg/L) | all year | 001 |
| Iron, total [as Fe] | maximum | report only (mg/L) | all year | 001 |
| Lead, total [as Pb] | daily minimum | report only (ug/L) | all year | 001 |
| Lead, total [as Pb] | daily average | report only (ug/L) | all year | 001 |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year | 001 |
| Lead, total [as Pb] | daily minimum | report only (ug/L) | all year | 001 |
| Lead, total [as Pb] | daily average | report only (ug/L) | all year | 001 |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year | 001 |
| Manganese, total [as Mn] | minimum | report only (mg/L) | all year | 001 |
| Manganese, total [as Mn] | average | report only (mg/L) | all year | 001 |
| Manganese, total [as Mn] | maximum | report only (mg/L) | all year | 001 |
| Thallium, total [as Tl] | daily minimum | report only (ug/L) | all year | 001 |
| Thallium, total [as Tl] | daily average | report only (ug/L) | all year | 001 |
| Thallium, total [as Tl] | daily maximum | report only (ug/L) | all year | 001 |
| Thallium, total [as Tl] | daily minimum | report only (ug/L) | all year | 001 |
| Thallium, total [as Tl] | daily average | report only (ug/L) | all year | 001 |
| Thallium, total [as Tl] | daily maximum | report only (ug/L) | all year | 001 |
| Nickel, total [as Ni] | daily minimum | report only (ug/L) | all year | 001 |
| Nickel, total [as Ni] | daily average | report only (ug/L) | all year | 001 |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year | 001 |
| Nickel, total [as Ni] | daily minimum | report only (ug/L) | all year | 001 |
| Nickel, total [as Ni] | daily average | report only (ug/L) | all year | 001 |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year | 001 |
| Silver, total [as Ag] | daily minimum | report only (ug/L) | all year | 001 |
| Silver, total [as Ag] | daily average | report only (ug/L) | all year | 001 |
| Silver, total [as Ag] | daily maximum | report only (ug/L) | all year | 001 |
| Silver, total [as Ag] | daily minimum | report only (ug/L) | all year | 001 |
| Silver, total [as Ag] | daily average | report only (ug/L) | all year | 001 |
| Silver, total [as Ag] | daily maximum | report only (ug/L) | all year | 001 |
| Zinc, total [as Zn] | daily minimum | report only (ug/L) | all year | 001 |
| Zinc, total [as Zn] | daily average | report only (ug/L) | all year | 001 |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year | 001 |
| Zinc, total [as Zn] | daily minimum | report only (ug/L) | all year | 001 |
| Zinc, total [as Zn] | daily average | report only (ug/L) | all year | 001 |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year | 001 |
| Antimony, total [as Sb] | daily minimum | report only (ug/L) | all year | 001 |
| Antimony, total [as Sb] | daily average | report only (ug/L) | all year | 001 |
| Antimony, total [as Sb] | daily maximum | report only (ug/L) | all year | 001 |
| Antimony, total [as Sb] | daily minimum | report only (ug/L) | all year | 001 |
| Antimony, total [as Sb] | daily average | report only (ug/L) | all year | 001 |
| Antimony, total [as Sb] | daily maximum | report only (ug/L) | all year | 001 |
| Selenium, total [as Se] | daily minimum | report only (ug/L) | all year | 001 |
| Selenium, total [as Se] | daily average | report only (ug/L) | all year | 001 |
| Selenium, total [as Se] | daily maximum | report only (ug/L) | all year | 001 |
| Selenium, total [as Se] | daily minimum | report only (ug/L) | all year | 001 |
| Selenium, total [as Se] | daily average | report only (ug/L) | all year | 001 |
| Selenium, total [as Se] | daily maximum | report only (ug/L) | all year | 001 |
| Total phenols | daily minimum | report only (ug/L) | all year | 001 |
| Total phenols | daily average | report only (ug/L) | all year | 001 |
| Total phenols | daily maximum | report only (ug/L) | all year | 001 |
| Total phenols | daily minimum | report only (ug/L) | all year | 001 |
| Total phenols | daily average | report only (ug/L) | all year | 001 |
| Total phenols | daily maximum | report only (ug/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .1 mg/L | all year | 001 |
| E. coli | monthly geometric mean | ≤ 126 #/100mL | Apr–Oct | 001 |
| E. coli | daily maximum | ≤ 409 #/100mL | Apr–Oct | 001 |
| Sodium, % total cations | minimum | report only (%) | all year | 001 |
| Sodium, % total cations | average | report only (%) | all year | 001 |
| Sodium, % total cations | maximum | report only (%) | all year | 001 |
| Solids, total dissolved [TDS] | minimum | report only (mg/L) | all year | 001 |
| Solids, total dissolved [TDS] | average | report only (mg/L) | all year | 001 |
| Solids, total dissolved [TDS] | maximum | report only (mg/L) | all year | 001 |
| Mercury, total [as Hg] | daily minimum | report only (ug/L) | all year | 001 |
| Mercury, total [as Hg] | daily average | report only (ug/L) | all year | 001 |
| Mercury, total [as Hg] | daily maximum | report only (ug/L) | all year | 001 |
| Mercury, total [as Hg] | daily minimum | report only (ug/L) | all year | 001 |
| Mercury, total [as Hg] | daily average | report only (ug/L) | all year | 001 |
| Mercury, total [as Hg] | daily maximum | report only (ug/L) | all year | 001 |
| Total toxic organics [TTO] [40 CFR433] | daily minimum | report only (mg/L) | all year | 001 |
| Total toxic organics [TTO] [40 CFR433] | daily average | report only (mg/L) | all year | 001 |
| Total toxic organics [TTO] [40 CFR433] | daily maximum | report only (mg/L) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 20 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 40 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly minimum | report only (mg/L) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | report only (mg/L) | all year | 001 |
| BOD, carbonaceous, percent removal | minimum value | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | minimum value | ≥ 85 % | all year | 001 |
| Turbidity, lab, NTU | minimum | report only (NTU) | all year | 001 |
| Turbidity, lab, NTU | average | report only (NTU) | all year | 001 |
| Turbidity, lab, NTU | maximum | report only (NTU) | all year | 001 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 001 |
| Hardness, tot calc. [Ca, Mg, Fe] as CaC03 | minimum | report only (mg/L) | all year | 001 |
| Hardness, tot calc. [Ca, Mg, Fe] as CaC03 | average | report only (mg/L) | all year | 001 |
| Hardness, tot calc. [Ca, Mg, Fe] as CaC03 | maximum | report only (mg/L) | all year | 001 |
| Oil and grease visual | total | report only (N=0;Y=1) | all year | 001 |
| Toxic Units Static Renewal 48Hr Acute Ceriodaphnia dubia | maximum value | ≤ 1 tox acute | all year | 001 |
| TU Static Renewal 96Hr Acute Pimphales promelas | maximum value | ≤ 1 tox acute | all year | 001 |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | maximum value | report only (tox chronic) | all year | 001 |
| TU Static Renewal 7-Day Chronic Pimphales promelas | maximum value | report only (tox chronic) | all year | 001 |
| pH | minimum | report only (SU) | all year | 002 |
| pH | maximum | report only (SU) | all year | 002 |
| Solids, total suspended | daily minimum | report only (mg/L) | all year | 002 |
| Solids, total suspended | 30-day average | report only (mg/L) | all year | 002 |
| Solids, total suspended | maximum 7-day average | report only (mg/L) | all year | 002 |
| Oil & Grease | daily minimum | report only (mg/L) | all year | 002 |
| Oil & Grease | 30-day average | report only (mg/L) | all year | 002 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily minimum | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| E. coli | daily minimum | report only (#/100mL) | all year | 002 |
| E. coli | 30-day average | report only (#/100mL) | all year | 002 |
| E. coli | daily maximum | report only (#/100mL) | all year | 002 |
| Flow, total | total | report only (Mgal) | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily minimum | report only (mg/L) | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily average | report only (mg/L) | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 002 |
| Oil and grease visual | total | report only (N=0;Y=1) | all year | 002 |
Cited limits by parameter: North Dakota's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/ND0023434 · MCP: https://passage-data.com/mcp