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Industrial Organic Chemicals, Carrollton, Missouri. NPDES permit MO0134198 expired Jun 30, 2024; its limits still apply. Last 12 months: over a limit 4 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| November 2025 | Chloride, monthly average | 214 | ≤ 161 mg/L | 33% |
| January 2026 | Chloride, monthly average | 165 | ≤ 161 mg/L | 2% |
| June 2026 | Cadmium, total recoverable, daily maximum | < .5 | ≤ .4 ug/L | 25% |
| June 2026 | Cadmium, total recoverable, monthly average | < .5 | ≤ .3 ug/L | 67% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 001 |
| pH | minimum | ≥ 6.5 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | all year | 001 |
| Iron, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| BOD, 5-day, total | daily maximum | report only (mg/L) | all year | 001 |
| Precipitation volume | daily maximum | report only (in/d) | all year | 001 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 002 |
| pH | minimum | ≥ 6.5 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 002 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | all year | 002 |
| Iron, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| BOD, 5-day, total | daily maximum | report only (mg/L) | all year | 002 |
| Precipitation volume | daily maximum | report only (in/d) | all year | 002 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 003 |
| pH | minimum | ≥ 6.5 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 003 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | all year | 003 |
| Iron, total recoverable | daily maximum | report only (ug/L) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| BOD, 5-day, total | daily maximum | report only (mg/L) | all year | 003 |
| Precipitation volume | daily maximum | report only (in/d) | all year | 003 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 004 |
| pH | minimum | ≥ 6.5 SU | all year | 004 |
| pH | maximum | ≤ 9 SU | all year | 004 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 004 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | all year | 004 |
| Iron, total recoverable | daily maximum | report only (ug/L) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| BOD, 5-day, total | daily maximum | report only (mg/L) | all year | 004 |
| Precipitation volume | daily maximum | report only (in/d) | all year | 004 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 90 deg F | all year | 009 |
| Temperature, water deg. fahrenheit | monthly average | ≤ 90 deg F | all year | 009 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 120 mg/L | all year | 009 |
| Oxygen demand, chem. [high level] [COD] | monthly average | ≤ 90 mg/L | all year | 009 |
| pH | minimum | ≥ 6.5 SU | all year | 009 |
| pH | maximum | ≤ 9 SU | all year | 009 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 009 |
| Solids, total suspended | monthly average | ≤ 46 mg/L | all year | 009 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | all year | 009 |
| Oil and grease [soxhlet extr.] tot. | monthly average | report only (mg/L) | all year | 009 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 009 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 009 |
| Arsenic, total recoverable | daily maximum | ≤ 32.2 ug/L | all year | 009 |
| Arsenic, total recoverable | monthly average | ≤ 16.6 ug/L | all year | 009 |
| Iron, total recoverable | daily maximum | ≤ 1839 ug/L | all year | 009 |
| Iron, total recoverable | monthly average | ≤ 645 ug/L | all year | 009 |
| Aluminum, total recoverable | daily maximum | ≤ 750 ug/L | all year | 009 |
| Aluminum, total recoverable | monthly average | ≤ 302 ug/L | all year | 009 |
| Cadmium, total recoverable | daily maximum | ≤ .4 ug/L | all year | 009 |
| Cadmium, total recoverable | monthly average | ≤ .3 ug/L | all year | 009 |
| Copper, total recoverable | daily maximum | ≤ 16.6 ug/L | all year | 009 |
| Copper, total recoverable | monthly average | ≤ 8.1 ug/L | all year | 009 |
| Chloride | daily maximum | ≤ 424 mg/L | all year | 009 |
| Chloride | monthly average | ≤ 161 mg/L | all year | 009 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 009 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 009 |
| Chlorine, total residual | daily maximum | ≤ 17 ug/L | all year | 009 |
| Chlorine, total residual | monthly average | ≤ 8 ug/L | all year | 009 |
| Toxicity [chronic], Ceriodaphnia dubia | daily maximum | ≤ 1.1 toxic | all year | 009 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | daily maximum | ≤ 1.1 toxic | all year | 009 |
| BOD, 5-day, total | daily maximum | ≤ 80 mg/L | all year | 009 |
| BOD, 5-day, total | monthly average | ≤ 30 mg/L | all year | 009 |
| Chlorides + Sulfates | daily maximum | report only (mg/L) | all year | 009 |
| Chlorides + Sulfates | monthly average | report only (mg/L) | all year | 009 |
Cited limits by parameter: Missouri's rules and the federal ones.
Same industry: the 22 Chemicals and Allied Products permits in Missouri.
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