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Ship Building And Repairing, Larose, Louisiana. NPDES permit LA0105856, in force until Nov 30, 2027. Last 12 months: no values over a limit, 3 of 21 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | instantaneous minimum | ≥ 6 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 001 |
| Oil and grease | daily maximum | ≤ 15 mg/L | 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 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 250 mg/L | all year | 002 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 250 mg/L | all year | 002 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 002 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 002 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 002 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 002 |
| Oil and grease visual | daily maximum | ≤ 0 occur/d | all year | 002 |
| Oil and grease visual | daily maximum | ≤ 0 occur/d | all year | 002 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 902 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 902 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 45 mg/L | all year | 902 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 45 mg/L | all year | 902 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 902 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 902 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 902 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 902 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 902 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 902 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 902 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 902 |
| Coliform, fecal general | monthly geometric mean | ≤ 200 #/100mL | all year | 902 |
| Coliform, fecal general | monthly geometric mean | ≤ 200 #/100mL | all year | 902 |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year | 902 |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year | 902 |
Cited limits by parameter: Louisiana's rules and the federal ones.
Same industry: the 15 Transportation Equipment 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/LA0105856 · MCP: https://passage-data.com/mcp