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Industrial Organic Chemicals, Memphis, Tennessee. NPDES permit TN0000078, in force until May 31, 2028. Last 12 months: over a limit 3 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | pH, maximum | 9.3 SU | ≤ 9 SU | — |
| January 2026 | pH, maximum | 9.4 SU | ≤ 9 SU | — |
| June 2026 | BOD, 5-day, 20 deg. C, daily maximum | 58 mg/L | ≤ 30 mg/L | 93% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 30 mg/L | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | 001 |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | all year | 001 |
| Oil and grease, hexane extr method | daily maximum | ≤ 15 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 |
| 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 | monthly average | ≤ .19 mg/L | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .33 mg/L | all year | 001 |
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | daily minimum | > 2.8 % | all year | 001 |
| IC25 Static Renewal 7 Day Chronic Pimephales | daily minimum | > 2.8 % | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 002 |
| pH | minimum | ≥ 6 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | 002 |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | all year | 002 |
| Oil and grease, hexane extr method | daily maximum | ≤ 15 mg/L | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 002 |
| Chlorine, total residual | monthly average | ≤ .43 mg/L | all year | 002 |
| Chlorine, total residual | daily maximum | ≤ .75 mg/L | all year | 002 |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | minimum | report only (%) | all year | 002 |
| LC50 Static 48Hr Acute Pimephales promelas | minimum | report only (%) | all year | 002 |
| pH | daily maximum | report only (SU) | all year | SW1 |
| pH | daily maximum | report only (SU) | all year | SW1 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | SW1 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | SW1 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | SW1 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | SW1 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | SW1 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | SW1 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | SW1 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | SW1 |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | minimum | report only (%) | all year | SW1 |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | minimum | report only (%) | all year | SW1 |
| LC50 Static 48Hr Acute Pimephales promelas | minimum | report only (%) | all year | SW1 |
| LC50 Static 48Hr Acute Pimephales promelas | minimum | report only (%) | all year | SW1 |
Cited limits by parameter: Tennessee's rules and the federal ones.
Same industry: the 30 Chemicals and Allied Products permits in Tennessee.
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