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Ascension Bulk Terminal LLC

Marine Cargo Handling, Darrow, Louisiana. NPDES permit LA0125938, in force until Jun 30, 2031. Last 12 months: over a limit once (last June 2026), 101 required values missing, 14 of 41 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: outfall 004 form S twice a year, outfall 005 form Q quarterly, outfall 02A form A quarterly, outfall 02B form A quarterly
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 10 required values missing, 0 of 54 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
June 2026Carbon, tot organic [TOC], daily maximum440 mg/L≤ 50 mg/L780%

Limits in force (30)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year004
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year004
pHinstantaneous minimum≥ 6 SUall year004
pHinstantaneous maximum≤ 9 SUall year004
Solids, total suspendedmonthly average≤ 30 mg/Lall year004
Solids, total suspendeddaily maximum≤ 45 mg/Lall year004
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year004
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year004
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year004
pHinstantaneous minimum≥ 6 SUall year005
pHinstantaneous maximum≤ 8.5 SUall year005
Oil & Greasedaily maximum≤ 15 mg/Lall year005
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year005
pHinstantaneous minimum≥ 6 SUall year02A
pHinstantaneous maximum≤ 8.5 SUall year02A
Solids, total suspendeddaily maximum≤ 50 mg/Lall year02A
Oil & Greasedaily maximum≤ 15 mg/Lall year02A
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year02A
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year02A
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year02A
pHinstantaneous minimum≥ 6 SUall year02B
pHinstantaneous maximum≤ 9 SUall year02B
Solids, total suspendeddaily maximum≤ 50 mg/Lall year02B
Oil & Greasedaily maximum≤ 15 mg/Lall year02B
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year02B
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year02B
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year02B

How strict are these limits?

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/LA0125938 · MCP: https://passage-data.com/mcp