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Alkalies And Chlorine, major discharger, Mc Intosh, Alabama. NPDES permit AL0001945 expired Aug 31, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 8.5 SU | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Apr–Oct | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Apr–Oct | 001 |
| Chloride [as Cl] | monthly average | report only (mg/L) | all year | 001 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 001 |
| Sulfate, total [as SO4] | monthly average | report only (lb/d) | all year | 001 |
| Sulfate, total [as SO4] | daily maximum | report only (lb/d) | 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 |
| Toxicity [acute], Ceriodaphnia dubia | single sample | ≤ 0 pass=0;fail=1 | all year | 001 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | single sample | ≤ 0 pass=0;fail=1 | all year | 001 |
| Solids, total dissolved | monthly average | ≤ 375000 lb/d | all year | 001 |
| Solids, total dissolved | daily maximum | ≤ 632000 lb/d | all year | 001 |
| Mercury, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Mercury, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Mercury, total recoverable | monthly average | ≤ .065 lb/d | all year | 001 |
| Mercury, total recoverable | daily maximum | ≤ .25 lb/d | all year | 001 |
| 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 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 002 |
| Mercury, total recoverable | daily maximum | report only (mg/L) | all year | 002 |
| 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 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 003 |
| Mercury, total recoverable | daily maximum | report only (mg/L) | all year | 003 |
| pH | daily minimum | report only (SU) | all year | 004 |
| pH | daily maximum | report only (SU) | all year | 004 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 004 |
| Mercury, total recoverable | daily maximum | report only (mg/L) | all year | 004 |
| pH | daily minimum | report only (SU) | all year | 005 |
| pH | daily maximum | report only (SU) | all year | 005 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 005 |
| Mercury, total recoverable | daily maximum | report only (mg/L) | all year | 005 |
| pH | daily minimum | report only (SU) | all year | 006 |
| pH | daily maximum | report only (SU) | all year | 006 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 006 |
| Mercury, total recoverable | daily maximum | report only (mg/L) | all year | 006 |
| Solids, total suspended | monthly average | ≤ 858 lb/d | all year | 01A |
| Solids, total suspended | daily maximum | ≤ 1823 lb/d | all year | 01A |
| Copper, total [as Cu] | monthly average | ≤ 4 lb/d | all year | 01A |
| Copper, total [as Cu] | daily maximum | ≤ 20.2 lb/d | all year | 01A |
| Lead, total [as Pb] | monthly average | ≤ 6 lb/d | all year | 01A |
| Lead, total [as Pb] | daily maximum | ≤ 9.9 lb/d | all year | 01A |
| Nickel, total [as Ni] | monthly average | ≤ 6.2 lb/d | all year | 01A |
| Nickel, total [as Ni] | daily maximum | ≤ 16.3 lb/d | all year | 01A |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 01A |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 01A |
| Chlorine, total residual | monthly average | ≤ 13.3 lb/d | all year | 01A |
| Chlorine, total residual | daily maximum | ≤ 21.9 lb/d | all year | 01A |
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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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/AL0001945 · MCP: https://passage-data.com/mcp