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Industrial Organic Chemicals, Richardton, North Dakota. NPDES permit ND0026271, in force until Sep 30, 2030. Last 12 months: no values over a limit, 4 required values missing, 3 of 6 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. fahrenheit | daily minimum | report only (deg F) | all year |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 85 deg F | all year |
| Conductivity | daily minimum | report only (umho/cm) | all year |
| Conductivity | monthly average | report only (umho/cm) | all year |
| Conductivity | weekly average | report only (umho/cm) | all year |
| BOD, 5-day, 20 deg. C | daily minimum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 25 mg/L | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | daily minimum | report only (mg/L) | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year |
| Oil and grease, hexane extr method | weekly average | report only (mg/L) | all year |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | all year |
| Nitrogen, ammonia total [as N] | daily minimum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Phosphorus, total [as P] | weekly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year |
| Magnesium, total [as Mg] | weekly average | report only (mg/L) | all year |
| Magnesium, total [as Mg] | monthly average | report only (mg/L) | all year |
| Magnesium, total [as Mg] | daily maximum | report only (mg/L) | all year |
| Sodium, total [as Na] | weekly average | report only (mg/L) | all year |
| Sodium, total [as Na] | monthly average | report only (mg/L) | all year |
| Sodium, total [as Na] | daily maximum | report only (mg/L) | all year |
| Chloride [as Cl] | weekly average | report only (mg/L) | all year |
| Chloride [as Cl] | monthly average | ≤ 250 mg/L | all year |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year |
| Sulfate, total [as SO4] | weekly average | report only (mg/L) | all year |
| Sulfate, total [as SO4] | monthly average | ≤ 750 mg/L | all year |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year |
| Iron, total [as Fe] | weekly average | report only (mg/L) | all year |
| Iron, total [as Fe] | monthly average | report only (mg/L) | all year |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year |
| Flow, in conduit or thru treatment plant | 30-day 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 |
| Flow, total | total | report only (Mgal) | all year |
| Solids, total dissolved [TDS] | daily minimum | report only (mg/L) | all year |
| Solids, total dissolved [TDS] | monthly average | report only (mg/L) | all year |
| Solids, total dissolved [TDS] | weekly average | report only (mg/L) | all year |
| Oil and grease visual | total | ≤ 0 N=0;Y=1 | all year |
| Toxic Units Static 48HR Acute Ceriodaphnia dubia | total | ≤ 1 tox acute | all year |
| TU LC50 Static Renewal 96Hr Acute Pimephales promelas | total | ≤ 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/ND0026271 · MCP: https://passage-data.com/mcp