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Water Transportation Of Freight, Demopolis, Alabama. NPDES permit AL0084488, in force until Aug 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 001 |
| pH | minimum | report only (SU) | all year | 001 |
| pH | daily maximum | report only (SU) | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 001 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 003 |
| pH | 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 | daily maximum | ≤ 15 mg/L | all year | 003 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 004 |
| pH | daily minimum | ≥ 6 SU | all year | 004 |
| pH | daily maximum | ≤ 9 SU | all year | 004 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 004 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 004 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 004 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 004 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year | 004 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year | 004 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 004 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 004 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 004 |
| Manganese, total [as Mn] | monthly average | ≤ 2 mg/L | all year | 004 |
| Manganese, total [as Mn] | daily maximum | ≤ 4 mg/L | all year | 004 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 004 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 005 |
| pH | 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 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 005 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 005 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 005 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 006 |
| pH | 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 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 006 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 006 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 006 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 007 |
| pH | minimum | report only (SU) | all year | 007 |
| pH | daily maximum | report only (SU) | all year | 007 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 007 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 007 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 007 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 007 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 008 |
| pH | minimum | report only (SU) | all year | 008 |
| pH | daily maximum | report only (SU) | all year | 008 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 008 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 008 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 008 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 008 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 008 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 009 |
| pH | minimum | report only (SU) | all year | 009 |
| pH | daily maximum | report only (SU) | all year | 009 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 009 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 009 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 009 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 009 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 009 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 009 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 010 |
| pH | daily minimum | ≥ 6 SU | all year | 010 |
| pH | daily maximum | ≤ 9 SU | all year | 010 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 010 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 010 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 010 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 010 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 010 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year | 010 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year | 010 |
| Iron, total [as Fe] | monthly average | ≤ 3 mg/L | all year | 010 |
| Iron, total [as Fe] | daily maximum | ≤ 6 mg/L | all year | 010 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 010 |
| Manganese, total [as Mn] | monthly average | ≤ 2 mg/L | all year | 010 |
| Manganese, total [as Mn] | daily maximum | ≤ 4 mg/L | all year | 010 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 010 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 010 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 010 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 011 |
| pH | minimum | report only (SU) | all year | 011 |
| pH | daily maximum | report only (SU) | all year | 011 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 011 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 011 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 011 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 011 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 012 |
| pH | minimum | report only (SU) | all year | 012 |
| pH | daily maximum | report only (SU) | all year | 012 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 012 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 012 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 012 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 012 |
Cited limits by parameter: Alabama's rules and the federal ones.
Same industry: the 13 Water Transportation permits in Alabama.
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