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Industrial Inorganic Chemicals, Chattanooga, Tennessee. NPDES permit TN0073237, in force until May 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | value | report only (SU) | all year | 01A |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 01A |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 01A |
| Phosphorus, total [as P] | rolling average | report only (mg/L) | all year | 01A |
| Magnesium, total [as Mg] | daily maximum | report only (mg/L) | all year | 01A |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 01A |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 01A |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 01A |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year | 01A |
| Oil and grease | daily maximum | report only (mg/L) | all year | 01A |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 01A |
| pH | value | report only (SU) | all year | SWE2 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | SWE2 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | SWE2 |
| Phosphorus, total [as P] | rolling average | ≤ .62 mg/L | all year | SWE2 |
| Magnesium, total [as Mg] | daily maximum | report only (mg/L) | all year | SWE2 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | SWE2 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | SWE2 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | SWE2 |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year | SWE2 |
| Oil and grease | daily maximum | report only (mg/L) | all year | SWE2 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | SWE2 |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | minimum | report only (%) | all year | SWE2 |
| LC50 Static 48Hr Acute Pimephales promelas | minimum | report only (%) | all year | SWE2 |
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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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/TN0073237 · MCP: https://passage-data.com/mcp