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Water Transportation Services, Modeste, Louisiana. NPDES permit LA0083674, in force until Mar 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | instantaneous minimum | ≥ 6 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Chlorine, total residual | daily maximum | ≤ .2 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 003 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 45 mg/L | all year | 003 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 003 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Coliform, fecal general | monthly geometric mean | ≤ 200 #/100mL | all year | 003 |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year | 003 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 22 mg/L | all year | 004 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 61 mg/L | all year | 004 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 004 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 004 |
| Solids, total suspended | monthly average | ≤ 26 mg/L | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 58 mg/L | all year | 004 |
| Oil & Grease | monthly average | ≤ 16 mg/L | all year | 004 |
| Oil & Grease | daily maximum | ≤ 36 mg/L | all year | 004 |
| Cadmium, total [as Cd] | daily maximum | ≤ .02 mg/L | all year | 004 |
| Chromium, total [as Cr] | daily maximum | ≤ .42 mg/L | all year | 004 |
| Copper, total [as Cu] | daily maximum | ≤ .1 mg/L | all year | 004 |
| Lead, total [as Pb] | daily maximum | ≤ .14 mg/L | all year | 004 |
| Nickel, total [as Ni] | daily maximum | ≤ .58 mg/L | all year | 004 |
| Zinc, total [as Zn] | daily maximum | ≤ 8.3 mg/L | all year | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 004 |
| Mercury, total [as Hg] | daily maximum | ≤ .0013 mg/L | all year | 004 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 250 mg/L | all year | 01A |
| pH | instantaneous minimum | ≥ 6 SU | all year | 01A |
| pH | instantaneous maximum | ≤ 9 SU | all year | 01A |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 01A |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | 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 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 250 mg/L | all year | 01B |
| pH | instantaneous minimum | ≥ 6 SU | all year | 01B |
| pH | instantaneous maximum | ≤ 9 SU | all year | 01B |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 01B |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 01B |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 01B |
Cited limits by parameter: Louisiana's rules and the federal ones.
Same industry: the 28 Water Transportation permits in Louisiana.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/LA0083674 · MCP: https://passage-data.com/mcp