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Industrial Organic Chemicals, Hankinson, North Dakota. NPDES permit ND0026310, in force until Sep 30, 2028. Last 12 months: over a limit 6 times (last June 2026), 2 of 6 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Chlorine, total residual, daily maximum | .04 mg/L | ≤ .019 mg/L | 111% |
| December 2025 | Chlorine, total residual, monthly average | .019833 mg/L | ≤ .011 mg/L | 80% |
| March 2026 | Chlorine, total residual, daily maximum | .04 mg/L | ≤ .019 mg/L | 111% |
| March 2026 | Chlorine, total residual, monthly average | .02 mg/L | ≤ .011 mg/L | 82% |
| June 2026 | Chlorine, total residual, daily maximum | .05 mg/L | ≤ .019 mg/L | 163% |
| June 2026 | Chlorine, total residual, monthly average | .027 mg/L | ≤ .011 mg/L | 145% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. fahrenheit | daily minimum | report only (deg F) | Jan, Feb, Mar, Oct, Nov, Dec |
| Temperature, water deg. fahrenheit | daily minimum | report only (deg F) | Apr–Sep |
| Temperature, water deg. fahrenheit | daily average | report only (deg F) | Jan, Feb, Mar, Oct, Nov, Dec |
| Temperature, water deg. fahrenheit | daily average | report only (deg F) | Apr–Sep |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 60 deg F | Jan, Feb, Mar, Oct, Nov, Dec |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 85 deg F | Apr–Sep |
| Conductivity | daily minimum | report only (umho/cm) | all year |
| Conductivity | minimum | report only (umho/cm) | all year |
| Conductivity | daily average | report only (umho/cm) | all year |
| Conductivity | average | report only (umho/cm) | all year |
| Conductivity | daily maximum | report only (umho/cm) | all year |
| Conductivity | maximum | report only (umho/cm) | all year |
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | all year |
| Oxygen, dissolved [DO] | daily average | report only (mg/L) | all year |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | daily minimum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | maximum 30-day average | ≤ 25 mg/L | all year |
| BOD, 5-day, 20 deg. C | maximum 7-day average | ≤ 45 mg/L | all year |
| pH | minimum | report only (SU) | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | report only (SU) | all year |
| pH | maximum | ≤ 9 SU | all year |
| Alkalinity, total [as CaCO3] | daily minimum | report only (mg/L) | all year |
| Alkalinity, total [as CaCO3] | daily average | report only (mg/L) | all year |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Bicarbonate ion- [as HCO3] | daily minimum | report only (mg/L) | all year |
| Bicarbonate ion- [as HCO3] | daily average | report only (mg/L) | all year |
| Bicarbonate ion- [as HCO3] | daily maximum | report only (mg/L) | all year |
| Carbonate ion- [as CO3] | daily minimum | report only (mg/L) | all year |
| Carbonate ion- [as CO3] | daily average | report only (mg/L) | all year |
| Carbonate ion- [as CO3] | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | daily minimum | report only (mg/L) | all year |
| Solids, total suspended | maximum 30-day average | ≤ 30 mg/L | all year |
| Solids, total suspended | maximum 7-day average | ≤ 45 mg/L | all year |
| Oil & Grease | daily minimum | report only (mg/L) | all year |
| Oil & Grease | daily average | report only (mg/L) | all year |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year |
| Nitrogen, ammonia total [as N] | minimum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | maximum 30-day average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily minimum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily average | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Calcium, total [as Ca] | daily minimum | report only (mg/L) | all year |
| Calcium, total [as Ca] | daily average | report only (mg/L) | all year |
| Calcium, total [as Ca] | daily maximum | report only (mg/L) | all year |
| Magnesium, total [as Mg] | daily minimum | report only (mg/L) | all year |
| Magnesium, total [as Mg] | daily average | report only (mg/L) | all year |
| Magnesium, total [as Mg] | daily maximum | report only (mg/L) | all year |
| Sodium adsorption ratio | minimum | report only (Ratio) | all year |
| Sodium adsorption ratio | average | report only (Ratio) | all year |
| Sodium adsorption ratio | maximum | report only (Ratio) | all year |
| Potassium, total [as K] | daily minimum | report only (mg/L) | all year |
| Potassium, total [as K] | daily average | report only (mg/L) | all year |
| Potassium, total [as K] | daily maximum | report only (mg/L) | all year |
| Chloride [as Cl] | minimum | report only (mg/L) | all year |
| Chloride [as Cl] | maximum 30-day average | report only (mg/L) | all year |
| Chloride [as Cl] | maximum | report only (mg/L) | all year |
| Sulfate, total [as SO4] | daily minimum | report only (mg/L) | all year |
| Sulfate, total [as SO4] | maximum 30-day average | ≤ 450 mg/L | all year |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year |
| Fluoride, total [as F] | daily minimum | report only (mg/L) | all year |
| Fluoride, total [as F] | daily average | report only (mg/L) | all year |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year |
| Silica, total [as SiO2] | daily minimum | report only (mg/L) | all year |
| Silica, total [as SiO2] | daily average minimum | report only (mg/L) | all year |
| Silica, total [as SiO2] | daily maximum | report only (mg/L) | all year |
| Arsenic, total [as As] | daily minimum | report only (ug/L) | all year |
| Arsenic, total [as As] | maximum 30-day average | report only (ug/L) | all year |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | all year |
| Chromium, total [as Cr] | minimum | report only (mg/L) | all year |
| Chromium, total [as Cr] | maximum monthly average | ≤ .2 mg/L | all year |
| Chromium, total [as Cr] | maximum 7-day average | ≤ .2 mg/L | all year |
| Iron, total [as Fe] | daily minimum | report only (mg/L) | all year |
| Iron, total [as Fe] | daily average | report only (mg/L) | all year |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year |
| Manganese, total [as Mn] | daily minimum | report only (mg/L) | all year |
| Manganese, total [as Mn] | daily average | report only (mg/L) | all year |
| Manganese, total [as Mn] | daily maximum | report only (mg/L) | all year |
| Zinc, total [as Zn] | minimum | report only (mg/L) | all year |
| Zinc, total [as Zn] | maximum monthly average | ≤ 1 mg/L | all year |
| Zinc, total [as Zn] | daily maximum | ≤ 1 mg/L | all year |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Chlorine, total residual | daily minimum | report only (mg/L) | all year |
| Chlorine, total residual | monthly average | ≤ .011 mg/L | all year |
| Chlorine, total residual | daily maximum | ≤ .019 mg/L | all year |
| Priority pollutants scan [yes/no] | total | report only (N=0;Y=1) | all year |
| Hydroxide | daily minimum | report only (mg/L) | all year |
| Hydroxide | daily average | report only (mg/L) | all year |
| Hydroxide | daily maximum | report only (mg/L) | all year |
| Sodium, % total cations | minimum | report only (%) | all year |
| Sodium, % total cations | average | report only (%) | all year |
| Sodium, % total cations | maximum | report only (%) | all year |
| Solids, total dissolved [TDS] | daily minimum | report only (mg/L) | all year |
| Solids, total dissolved [TDS] | daily minimum | report only (mg/L) | all year |
| Solids, total dissolved [TDS] | daily average | report only (mg/L) | all year |
| Solids, total dissolved [TDS] | daily average | report only (mg/L) | all year |
| Solids, total dissolved [TDS] | daily maximum | report only (mg/L) | all year |
| Solids, total dissolved [TDS] | daily maximum | report only (mg/L) | all year |
| Turbidity, lab, NTU | daily minimum | report only (NTU) | all year |
| Turbidity, lab, NTU | daily average | report only (NTU) | all year |
| Turbidity, lab, NTU | daily maximum | report only (NTU) | all year |
| Flow, total | quarterly total | report only (Mgal/qtr) | all year |
| Oil and grease visual | total | report only (N=0;Y=1) | all year |
| Toxic Units Static Renewal 48Hr Acute Ceriodaphnia dubia | maximum | ≤ 1 tox acute | all year |
| TU Static Renewal 96Hr Acute Pimphales promelas | maximum | ≤ 1 tox acute | 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/ND0026310 · MCP: https://passage-data.com/mcp