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Allied Shipyard Inc - Larose Facility

Ship Building And Repairing, Larose, Louisiana. NPDES permit LA0118702, in force until Nov 30, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due

About 28 days after each period: outfall 001 form S twice a year, outfall 002 form Q quarterly, outfall 003 form Q quarterly, outfall 004 form Q quarterly, outfall 005 form Q quarterly, outfall 006 form Q quarterly

Last report on file

June 2026

Oct 2024 – Sep 2025

0 values over a limit, 0 required values missing, 0 of 22 reports late

Limits in force (52)

How strict are these limits?

• pH, instantaneous minimum at least 6.5 SU — stricter than 97% of 680 other minor industrial and other permits in Louisiana; 2% have the same limit
• Solids, total suspended, daily maximum 45 mg/L — stricter than 18% of 551 other minor industrial and other permits in Louisiana; 59% have the same limit
• Nitrogen, ammonia total [as N], daily maximum 15 mg/L — stricter than 11% of 133 other minor industrial and other permits in Louisiana; 4% have the same limit

Cited limits by parameter: Louisiana's rules and the federal ones.

Same industry: the 15 Transportation Equipment permits in Louisiana.

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/LA0118702 · MCP: https://passage-data.com/mcp