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Industrial Inorganic Chemicals, Tuscaloosa, Alabama. NPDES permit AL0050890, in force until Apr 30, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Sulfate [as S] | daily maximum | report only (mg/L) | all year | 002 |
| pH | daily minimum | report only (SU) | all year | 002 |
| pH | daily maximum | report only (SU) | all year | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 002 |
| Oil & Grease | monthly average | ≤ 10 mg/L | all year | 002 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 002 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Solids, total dissolved [TDS] | daily maximum | report only (mg/L) | all year | 002 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 002 |
| Sulfate [as S] | daily maximum | report only (mg/L) | all year | 003 |
| pH | daily minimum | report only (SU) | all year | 003 |
| pH | daily maximum | report only (SU) | all year | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 003 |
| Oil & Grease | monthly average | ≤ 10 mg/L | all year | 003 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Solids, total dissolved [TDS] | daily maximum | report only (mg/L) | all year | 003 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 003 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 90 deg F | all year | 004 |
| pH | daily minimum | ≥ 6 SU | all year | 004 |
| pH | daily maximum | ≤ 9 SU | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| pH | daily minimum | ≥ 6 SU | all year | 005 |
| pH | daily maximum | ≤ 9 SU | all year | 005 |
| Oil & Grease | monthly average | ≤ 10 mg/L | all year | 005 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| pH | daily minimum | ≥ 6 SU | all year | 006 |
| pH | daily maximum | ≤ 9 SU | all year | 006 |
| Oil & Grease | monthly average | ≤ 10 mg/L | all year | 006 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| Sulfate [as S] | monthly average | report only (mg/L) | all year | 007 |
| Sulfate [as S] | daily maximum | report only (mg/L) | all year | 007 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 007 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 007 |
| pH | daily minimum | ≥ 6 SU | all year | 007 |
| pH | daily maximum | ≤ 9 SU | all year | 007 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 007 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 007 |
| Oil & Grease | monthly average | ≤ 10 mg/L | all year | 007 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| Chemical Oxygen Demand [COD] | monthly average | report only (mg/L) | all year | 007 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 007 |
Cited limits by parameter: Alabama's rules and the federal ones.
Same industry: the 79 Chemicals and Allied Products permits in Alabama.
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Your permit document is the final word. As JSON: /api/v1/permits/AL0050890 · MCP: https://passage-data.com/mcp