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T.T. 237, LLC

Water Transportation Services, Port Allen, Louisiana. NPDES permit LA0075213 expired Oct 31, 2026. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 006 form A quarterly (10 values), outfall 012 form A quarterly (22 values), outfall 014 form A quarterly (34 values), outfall 05A form A quarterly (12 values), outfall 05B form A quarterly (14 values), outfall 004 form S twice a year, and 1 more form
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 64 reports late

Limits in force (112)

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 (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year004
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year004
pHinstantaneous minimum≥ 6 SUall year006
pHinstantaneous minimum≥ 6 SUall year006
pHinstantaneous maximum≤ 9 SUall year006
pHinstantaneous maximum≤ 9 SUall year006
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year006
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year006
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year006
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year006
Chlorine, total residualdaily maximum≤ .2 mg/Lall year006
Chlorine, total residualdaily maximum≤ .2 mg/Lall year006
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year008
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year008
pHinstantaneous minimum≥ 6 SUall year008
pHinstantaneous maximum≤ 9 SUall year008
Solids, total suspendedmonthly average≤ 30 mg/Lall year008
Solids, total suspendeddaily maximum≤ 45 mg/Lall year008
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year008
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year008
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year008
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year008
pHinstantaneous minimum≥ 6 SUall year012
pHinstantaneous minimum≥ 6 SUall year012
pHinstantaneous maximum≤ 9 SUall year012
pHinstantaneous maximum≤ 9 SUall year012
Solids, total suspendeddaily maximum≤ 90 mg/Lall year012
Solids, total suspendeddaily maximum≤ 90 mg/Lall year012
Solids, total suspendeddaily maximum≤ 90 mg/Lall year012
Solids, total suspendeddaily maximum≤ 90 mg/Lall year012
Oil & Greasedaily maximum≤ 15 mg/Lall year012
Oil & Greasedaily maximum≤ 15 mg/Lall year012
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year012
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year012
Lead, total [as Pb]daily maximum≤ 50 ug/Lall year012
Lead, total [as Pb]daily maximum≤ 50 ug/Lall year012
Benzenedaily maximum≤ 50 ug/Lall year012
Benzenedaily maximum≤ 50 ug/Lall year012
BTEXdaily maximum≤ 250 ug/Lall year012
BTEXdaily maximum≤ 250 ug/Lall year012
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year012
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year012
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year012
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year012
BOD, 5-day, 20 deg. Cmonthly average≤ 22 mg/Lall year014
BOD, 5-day, 20 deg. Cmonthly average≤ 22 mg/Lall year014
BOD, 5-day, 20 deg. Cdaily maximum≤ 61 mg/Lall year014
BOD, 5-day, 20 deg. Cdaily maximum≤ 61 mg/Lall year014
pHinstantaneous minimum≥ 6 SUall year014
pHinstantaneous minimum≥ 6 SUall year014
pHinstantaneous maximum≤ 9 SUall year014
pHinstantaneous maximum≤ 9 SUall year014
Solids, total suspendedmonthly average≤ 26 mg/Lall year014
Solids, total suspendedmonthly average≤ 26 mg/Lall year014
Solids, total suspendeddaily maximum≤ 58 mg/Lall year014
Solids, total suspendeddaily maximum≤ 58 mg/Lall year014
Oil & Greasemonthly average≤ 16 mg/Lall year014
Oil & Greasemonthly average≤ 16 mg/Lall year014
Oil & Greasedaily maximum≤ 36 mg/Lall year014
Oil & Greasedaily maximum≤ 36 mg/Lall year014
Cadmium, total [as Cd]daily maximum≤ .02 mg/Lall year014
Cadmium, total [as Cd]daily maximum≤ .02 mg/Lall year014
Chromium, total [as Cr]daily maximum≤ .42 mg/Lall year014
Chromium, total [as Cr]daily maximum≤ .42 mg/Lall year014
Copper, total [as Cu]daily maximum≤ .1 mg/Lall year014
Copper, total [as Cu]daily maximum≤ .1 mg/Lall year014
Lead, total [as Pb]daily maximum≤ .14 mg/Lall year014
Lead, total [as Pb]daily maximum≤ .14 mg/Lall year014
Nickel, total [as Ni]daily maximum≤ .58 mg/Lall year014
Nickel, total [as Ni]daily maximum≤ .58 mg/Lall year014
Zinc, total [as Zn]daily maximum≤ 8.3 mg/Lall year014
Zinc, total [as Zn]daily maximum≤ 8.3 mg/Lall year014
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year014
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year014
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year014
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year014
Mercury, total [as Hg]daily maximum≤ .0013 mg/Lall year014
Mercury, total [as Hg]daily maximum≤ .0013 mg/Lall year014
Oxygen demand, chem. [high level] [COD]daily maximum≤ 250 mg/Lall year05A
Oxygen demand, chem. [high level] [COD]daily maximum≤ 250 mg/Lall year05A
pHinstantaneous minimum≥ 6 SUall year05A
pHinstantaneous minimum≥ 6 SUall year05A
pHinstantaneous maximum≤ 9 SUall year05A
pHinstantaneous maximum≤ 9 SUall year05A
Oil & Greasedaily maximum≤ 15 mg/Lall year05A
Oil & Greasedaily maximum≤ 15 mg/Lall year05A
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year05A
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year05A
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year05A
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year05A
Oxygen demand, chem. [high level] [COD]daily maximum≤ 250 mg/Lall year05B
Oxygen demand, chem. [high level] [COD]daily maximum≤ 250 mg/Lall year05B
pHinstantaneous minimum≥ 6 SUall year05B
pHinstantaneous minimum≥ 6 SUall year05B
pHinstantaneous maximum≤ 9 SUall year05B
pHinstantaneous maximum≤ 9 SUall year05B
Oil & Greasedaily maximum≤ 15 mg/Lall year05B
Oil & Greasedaily maximum≤ 15 mg/Lall year05B
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year05B
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year05B
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year05B
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year05B
Oil and grease visualdaily maximum≤ 0 occur/dall year05B
Oil and grease visualdaily maximum≤ 0 occur/dall year05B

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/LA0075213 · MCP: https://passage-data.com/mcp