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Delta Marine & Environmental Services LLC

Chemicals & Allied Products, Slidell, Louisiana. NPDES permit LA0127370 expired Aug 31, 2025; its limits still apply. Last 12 months: no values over a limit, 1 of 20 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 002 form A quarterly (16 values), outfall 003 form A quarterly (16 values), outfall 001 form S twice a year
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 7 of 26 reports late

Limits in force (49)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly average minimum≥ 2 mg/Lall year001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendeddaily maximum≤ 45 mg/Lall year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 10 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 20 mg/Lall year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year001
Coliform, fecal generalmonthly average≤ 200 #/100mLall year001
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 15 mg/Lall year001
pHinstantaneous minimum≥ 6 SUall year002
pHinstantaneous minimum≥ 6 SUall year002
pHinstantaneous maximum≤ 9 SUall year002
pHinstantaneous maximum≤ 9 SUall year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year002
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year002
Chloride [as Cl]monthly averagereport only (mg/L)all year002
Chloride [as Cl]monthly averagereport only (mg/L)all year002
Chloride [as Cl]daily maximumreport only (mg/L)all year002
Chloride [as Cl]daily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year002
pHinstantaneous minimum≥ 6 SUall year003
pHinstantaneous minimum≥ 6 SUall year003
pHinstantaneous maximum≤ 9 SUall year003
pHinstantaneous maximum≤ 9 SUall year003
Oil & Greasedaily maximum≤ 15 mg/Lall year003
Oil & Greasedaily maximum≤ 15 mg/Lall year003
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year003
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year003
Chloride [as Cl]monthly averagereport only (mg/L)all year003
Chloride [as Cl]monthly averagereport only (mg/L)all year003
Chloride [as Cl]daily maximumreport only (mg/L)all year003
Chloride [as Cl]daily maximumreport only (mg/L)all year003
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year003
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year003

How strict are these limits?

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

Same industry: the 68 Wholesale Trade — Nondurable Goods 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/LA0127370 · MCP: https://passage-data.com/mcp