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Industrial Organic Chemicals, Williston, North Dakota. NPDES permit ND0027031, in force until Mar 31, 2028. Last 12 months: no values over a limit, 100 required values missing, 7 of 18 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | ≤ 29.44 deg C | all year |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year |
| Stream flow, instantaneous | monthly average | report only (cfs) | all year |
| Stream flow, instantaneous | daily maximum | report only (cfs) | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 25 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 45 mg/L | all year |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 82.57 lb/d | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 220.18 lb/d | all year |
| pH | minimum | ≥ 6.5 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| pH | minimum | report only (SU) | all year |
| pH | maximum | report only (SU) | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year |
| Solids, total suspended | maximum monthly average | ≤ 15.18 lb/d | all year |
| Solids, total suspended | daily maximum | ≤ 49.17 lb/d | all year |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | weekly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily minimum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | weekly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year |
| Carbon, tot organic [TOC] | monthly average | report only (mg/L) | all year |
| Carbon, tot organic [TOC] | weekly average | report only (mg/L) | all year |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year |
| Cyanide, total [as CN] | maximum monthly average | ≤ 1.16 lb/d | all year |
| Cyanide, total [as CN] | daily maximum | ≤ 3.3 lb/d | all year |
| Sulfide, total [as S] | monthly average | report only (mg/L) | all year |
| Sulfide, total [as S] | weekly average | report only (mg/L) | all year |
| Sulfide, total [as S] | daily maximum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | weekly average | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Magnesium, total [as Mg] | monthly average | report only (ug/L) | all year |
| Magnesium, total [as Mg] | weekly average | report only (ug/L) | all year |
| Magnesium, total [as Mg] | daily maximum | report only (ug/L) | all year |
| Chloride [as Cl] | monthly average | report only (mg/L) | all year |
| Chloride [as Cl] | weekly average | report only (mg/L) | all year |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year |
| Sulfate, total [as SO4] | weekly average | report only (mg/L) | all year |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year |
| Barium, total [as Ba] | monthly average | report only (ug/L) | all year |
| Barium, total [as Ba] | weekly average | report only (ug/L) | all year |
| Barium, total [as Ba] | daily maximum | report only (ug/L) | all year |
| Boron, total [as B] | monthly average | report only (ug/L) | all year |
| Boron, total [as B] | weekly average | report only (ug/L) | all year |
| Boron, total [as B] | daily maximum | report only (ug/L) | all year |
| Chromium, total [as Cr] | maximum monthly average | ≤ 3.05 lb/d | all year |
| Chromium, total [as Cr] | daily maximum | ≤ 7.62 lb/d | all year |
| Copper, total [as Cu] | maximum monthly average | ≤ 3.99 lb/d | all year |
| Copper, total [as Cu] | daily maximum | ≤ 9.3 lb/d | all year |
| Iron, total [as Fe] | monthly average | report only (ug/L) | all year |
| Iron, total [as Fe] | weekly average | report only (ug/L) | all year |
| Iron, total [as Fe] | daily maximum | report only (ug/L) | all year |
| Lead, total [as Pb] | maximum monthly average | ≤ .88 lb/d | all year |
| Lead, total [as Pb] | daily maximum | ≤ 1.9 lb/d | all year |
| Manganese, total [as Mn] | monthly average | report only (mg/L) | all year |
| Manganese, total [as Mn] | weekly average | report only (mg/L) | all year |
| Manganese, total [as Mn] | daily maximum | report only (mg/L) | all year |
| Nickel, total [as Ni] | maximum monthly average | ≤ 4.65 lb/d | all year |
| Nickel, total [as Ni] | daily maximum | ≤ 10.95 lb/d | all year |
| Zinc, total [as Zn] | maximum monthly average | ≤ 2.89 lb/d | all year |
| Zinc, total [as Zn] | daily maximum | ≤ 7.18 lb/d | all year |
| Aluminum, total [as Al] | monthly average | report only (ug/L) | all year |
| Aluminum, total [as Al] | weekly average | report only (ug/L) | all year |
| Aluminum, total [as Al] | daily maximum | report only (ug/L) | all year |
| Total phenols | maximum monthly average | ≤ .04 lb/d | all year |
| Total phenols | daily maximum | ≤ .07 lb/d | all year |
| Carbon tetrachloride | maximum monthly average | ≤ .05 lb/d | all year |
| Carbon tetrachloride | daily maximum | ≤ .1 lb/d | all year |
| 1,2-Dichloroethane | maximum monthly average | ≤ .19 lb/d | all year |
| 1,2-Dichloroethane | daily maximum | ≤ .58 lb/d | all year |
| Chloroform | maximum monthly average | ≤ .06 lb/d | all year |
| Chloroform | daily maximum | ≤ .13 lb/d | all year |
| Toluene | maximum monthly average | ≤ .07 lb/d | all year |
| Toluene | daily maximum | ≤ .22 lb/d | all year |
| Acenaphthylene | maximum monthly average | ≤ .06 lb/d | all year |
| Acenaphthylene | daily maximum | ≤ .16 lb/d | all year |
| Acenaphthene | maximum monthly average | ≤ .06 lb/d | all year |
| Acenaphthene | daily maximum | ≤ .16 lb/d | all year |
| Acrylonitrile | maximum monthly average | ≤ .26 lb/d | all year |
| Acrylonitrile | daily maximum | ≤ .67 lb/d | all year |
| Anthracene | maximum monthly average | ≤ .06 lb/d | all year |
| Anthracene | daily maximum | ≤ .16 lb/d | all year |
| Benzo[k]fluoranthene | maximum monthly average | ≤ .06 lb/d | all year |
| Benzo[k]fluoranthene | daily maximum | ≤ .16 lb/d | all year |
| Benzo[a]pyrene | maximum monthly average | ≤ .06 lb/d | all year |
| Benzo[a]pyrene | daily maximum | ≤ .17 lb/d | all year |
| Chlorobenzene | maximum monthly average | ≤ .04 lb/d | all year |
| Chlorobenzene | daily maximum | ≤ .08 lb/d | all year |
| Chrysene | maximum monthly average | ≤ .06 lb/d | all year |
| Chrysene | daily maximum | ≤ .16 lb/d | all year |
| Diethyl phthalate | maximum monthly average | ≤ .22 lb/d | all year |
| Diethyl phthalate | daily maximum | ≤ .56 lb/d | all year |
| Dimethyl phthalate | maximum monthly average | ≤ .05 lb/d | all year |
| Dimethyl phthalate | daily maximum | ≤ .13 lb/d | all year |
| Ethylbenzene | maximum monthly average | ≤ .09 lb/d | all year |
| Ethylbenzene | daily maximum | ≤ .3 lb/d | all year |
| Fluoranthene | maximum monthly average | ≤ .07 lb/d | all year |
| Fluoranthene | daily maximum | ≤ .19 lb/d | all year |
| Fluorene | maximum monthly average | ≤ .06 lb/d | all year |
| Fluorene | daily maximum | ≤ .16 lb/d | all year |
| Hexachlorobutadiene | maximum monthly average | ≤ .06 lb/d | all year |
| Hexachlorobutadiene | daily maximum | ≤ .13 lb/d | all year |
| Hexachloroethane | maximum monthly average | ≤ .06 lb/d | all year |
| Hexachloroethane | daily maximum | ≤ .15 lb/d | all year |
| Methyl chloride [Chloromethane] | maximum monthly average | ≤ .24 lb/d | all year |
| Methyl chloride [Chloromethane] | daily maximum | ≤ .52 lb/d | all year |
| Methylene chloride | maximum monthly average | ≤ .11 lb/d | all year |
| Methylene chloride | daily maximum | ≤ .24 lb/d | all year |
| Nitrobenzene | maximum monthly average | ≤ .07 lb/d | all year |
| Nitrobenzene | daily maximum | ≤ .19 lb/d | all year |
| Phenanthrene | maximum monthly average | ≤ .06 lb/d | all year |
| Phenanthrene | daily maximum | ≤ .16 lb/d | all year |
| Pyrene | maximum monthly average | ≤ .07 lb/d | all year |
| Pyrene | daily maximum | ≤ .18 lb/d | all year |
| Tetrachloroethylene | maximum monthly average | ≤ .06 lb/d | all year |
| Tetrachloroethylene | daily maximum | ≤ .15 lb/d | all year |
| 1,1-Dichloroethane | maximum monthly average | ≤ .06 lb/d | all year |
| 1,1-Dichloroethane | daily maximum | ≤ .16 lb/d | all year |
| 1,1-Dichloroethylene | maximum monthly average | ≤ .04 lb/d | all year |
| 1,1-Dichloroethylene | daily maximum | ≤ .07 lb/d | all year |
| 1,1,1-Trichloroethane | maximum monthly average | ≤ .06 lb/d | all year |
| 1,1,1-Trichloroethane | daily maximum | ≤ .15 lb/d | all year |
| 1,1,2-Trichloroethane | maximum monthly average | ≤ .06 lb/d | all year |
| 1,1,2-Trichloroethane | daily maximum | ≤ .15 lb/d | all year |
| Benzo[a]anthracene | maximum monthly average | ≤ .06 lb/d | all year |
| Benzo[a]anthracene | daily maximum | ≤ .16 lb/d | all year |
| 1,2-Dichlorobenzene | maximum monthly average | ≤ .21 lb/d | all year |
| 1,2-Dichlorobenzene | daily maximum | ≤ .45 lb/d | all year |
| 1,2-Dichloropropane | maximum monthly average | ≤ .42 lb/d | all year |
| 1,2-Dichloropropane | daily maximum | ≤ .63 lb/d | all year |
| trans-1,2-Dichloroethylene | maximum monthly average | ≤ .06 lb/d | all year |
| trans-1,2-Dichloroethylene | daily maximum | ≤ .15 lb/d | all year |
| 1,2,4-Trichlorobenzene | maximum monthly average | ≤ .19 lb/d | all year |
| 1,2,4-Trichlorobenzene | daily maximum | ≤ .39 lb/d | all year |
| 1,3-Dichlorobenzene | maximum monthly average | ≤ .09 lb/d | all year |
| 1,3-Dichlorobenzene | daily maximum | ≤ .12 lb/d | all year |
| 1,4-Dichlorobenzene | maximum monthly average | ≤ .04 lb/d | all year |
| 1,4-Dichlorobenzene | daily maximum | ≤ .08 lb/d | all year |
| 2-Chlorophenol | maximum monthly average | ≤ .09 lb/d | all year |
| 2-Chlorophenol | daily maximum | ≤ .27 lb/d | all year |
| 2-Nitrophenol | maximum monthly average | ≤ .11 lb/d | all year |
| 2-Nitrophenol | daily maximum | ≤ .19 lb/d | all year |
| 2,4-Dichlorophenol | maximum monthly average | ≤ .11 lb/d | all year |
| 2,4-Dichlorophenol | daily maximum | ≤ .31 lb/d | all year |
| 2,4-Dimethylphenol | maximum monthly average | ≤ .05 lb/d | all year |
| 2,4-Dimethylphenol | daily maximum | ≤ .1 lb/d | all year |
| 2,4-Dinitrotoluene | maximum monthly average | ≤ .31 lb/d | all year |
| 2,4-Dinitrotoluene | daily maximum | ≤ .78 lb/d | all year |
| 2,4-Dinitrophenol | maximum monthly average | ≤ .2 lb/d | all year |
| 2,4-Dinitrophenol | daily maximum | ≤ .34 lb/d | all year |
| 2,6-Dinitrotoluene | maximum monthly average | ≤ .7 lb/d | all year |
| 2,6-Dinitrotoluene | daily maximum | ≤ 1.76 lb/d | all year |
| 4-Nitrophenol | maximum monthly average | ≤ .2 lb/d | all year |
| 4-Nitrophenol | daily maximum | ≤ .34 lb/d | all year |
| 4,6-Dinitro-o-cresol | maximum monthly average | ≤ .21 lb/d | all year |
| 4,6-Dinitro-o-cresol | daily maximum | ≤ .76 lb/d | all year |
| Naphthalene | maximum monthly average | ≤ .06 lb/d | all year |
| Naphthalene | daily maximum | ≤ .16 lb/d | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | maximum monthly average | ≤ .28 lb/d | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | ≤ .77 lb/d | all year |
| Di-n-butyl phthalate | maximum monthly average | ≤ .07 lb/d | all year |
| Di-n-butyl phthalate | daily maximum | ≤ .16 lb/d | all year |
| Vinyl chloride | maximum monthly average | ≤ .29 lb/d | all year |
| Vinyl chloride | daily maximum | ≤ .74 lb/d | all year |
| Trichloroethylene | maximum monthly average | ≤ .06 lb/d | all year |
| Trichloroethylene | daily maximum | ≤ .15 lb/d | all year |
| Hexachlorobenzene | maximum monthly average | ≤ .04 lb/d | all year |
| Hexachlorobenzene | daily maximum | ≤ .08 lb/d | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Chlorine, total residual | monthly average | ≤ .011 mg/L | all year |
| Chlorine, total residual | daily maximum | ≤ .019 mg/L | all year |
| Flow, total | total | report only (Mgal) | all year |
| 1,3-Dichloropropene | maximum monthly average | ≤ .08 lb/d | all year |
| 1,3-Dichloropropene | daily maximum | ≤ .12 lb/d | all year |
| Benzene [volatile analysis] | maximum monthly average | ≤ .1 lb/d | all year |
| Benzene [volatile analysis] | daily maximum | ≤ .37 lb/d | all year |
| 3,4-Benzofluoranthene | maximum monthly average | ≤ .06 lb/d | all year |
| 3,4-Benzofluoranthene | daily maximum | ≤ .17 lb/d | all year |
| Chemical Oxygen Demand [COD] | monthly average | report only (mg/L) | all year |
| Chemical Oxygen Demand [COD] | weekly average | report only (mg/L) | all year |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year |
| Oil and grease visual | total | report only (N=0;Y=1) | all year |
| Chloroethane | maximum monthly average | ≤ .29 lb/d | all year |
| Chloroethane | daily maximum | ≤ .74 lb/d | all year |
| Toxic Units Static Renewal 48Hr Acute Ceriodaphnia dubia | maximum value | ≤ 1 tox acute | all year |
| TU Static Renewal 96Hr Acute Pimphales promelas | maximum value | ≤ 1 tox acute | all year |
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | maximum value | report only (tox chronic) | all year |
| TU Static Renewal 7-Day Chronic Pimphales promelas | maximum value | report only (tox chronic) | all year |
Cited limits by parameter: North Dakota's rules and the federal ones.
Same industry: the 4 Chemicals and Allied Products permits in North Dakota.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/ND0027031 · MCP: https://passage-data.com/mcp