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Ship Building And Repairing, Freeport, Texas. NPDES permit TX0126322, in force until Mar 17, 2031. Last 12 months: over a limit once (last December 2025). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Carbon, tot organic [TOC], daily maximum | 287 mg/L | ≤ 150 mg/L | 91% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | daily average | report only (mg/L) | all year | 004 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 004 |
| pH | minimum | ≥ 6 SU | all year | 004 |
| pH | maximum | ≤ 9 SU | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 004 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 004 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 150 mg/L | all year | 004 |
| Thallium, total [as Tl] | daily average | ≤ .0021 mg/L | all year | 004 |
| Thallium, total [as Tl] | daily maximum | ≤ .0043 mg/L | all year | 004 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| pH | minimum | ≥ 6 SU | all year | 005 |
| pH | maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 005 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 005 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 150 mg/L | all year | 005 |
| Copper, total [as Cu] | daily average | ≤ .007 mg/L | all year | 005 |
| Copper, total [as Cu] | daily maximum | ≤ .15 mg/L | all year | 005 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
Cited limits by parameter: Texas's rules and the federal ones.
Same industry: the 8 Transportation Equipment permits in Texas.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/TX0126322 · MCP: https://passage-data.com/mcp