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Marine Cargo Handling, Westlake, Louisiana. NPDES permit LA0091812, in force until Dec 31, 2029. Last 12 months: over a limit 2 times (last April 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| February 2026 | Solids, total suspended, daily maximum | 71 mg/L | ≤ 50 mg/L | 42% |
| April 2026 | pH, instantaneous maximum | 8.64 SU | ≤ 8.5 SU | — |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | instantaneous minimum | ≥ 6 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | all year | 002 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 002 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | 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 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 003 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | all year | 003 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 003 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 003 |
| Copper, total [as Cu] | monthly average | report only (mg/L) | all year | 003 |
| Copper, total [as Cu] | daily maximum | report only (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 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Copper, total [as Cu], daily maximum | 0.053 mg/L | new | 0.005 mg/L (3 values, 1 below detection) | 0.0943× |
| Copper, total [as Cu], monthly average | 0.022 mg/L | new | 0.005 mg/L (3 values, 1 below detection) | 0.227× |
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/LA0091812 · MCP: https://passage-data.com/mcp