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Hidrogenii, LLC

Industrial Gases, Saint Gabriel, Louisiana. NPDES permit LA0127697, in force until Dec 31, 2028. Last 12 months: over a limit once (last September 2026), 29 required values missing, 7 of 26 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form Q quarterly (7 values), outfall 101 form Q quarterly (4 values), outfall 201 form A quarterly (5 values), outfall 401 form Q quarterly (11 values), outfall 301 form S twice a year
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 13 of 26 reports late

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

Period endingParameterReportedLimitOver by
September 2026Oil & Grease, daily maximum16.2 mg/L≤ 15 mg/L8%

Limits in force (35)

ParameterStatisticLimitMonthsOutfall
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year001
Arsenic, total [as As]daily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Oil & Greasedaily maximum≤ 15 mg/Lall year101
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year101
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year101
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year201
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)all year201
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year201
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year201
Chlorine, total residualdaily maximum≤ .2 mg/Lall year201
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year301
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year301
Solids, total suspendedmonthly average≤ 30 mg/Lall year301
Solids, total suspendeddaily maximum≤ 45 mg/Lall year301
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year301
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year301
Coliform, fecal generalmonthly geometric mean≤ 200 CFU/100mLall year301
Coliform, fecal generaldaily maximum≤ 400 CFU/100mLall year301
pHinstantaneous minimum≥ 6 SUall year401
pHinstantaneous maximum≤ 9 SUall year401
Solids, total suspendeddaily maximum≤ 90 mg/Lall year401
Solids, total suspendeddaily maximum≤ 90 mg/Lall year401
Oil & Greasedaily maximum≤ 15 mg/Lall year401
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year401
Lead, total [as Pb]daily maximum≤ 50 ug/Lall year401
Benzenedaily maximum≤ 50 ug/Lall year401
BTEXdaily maximum≤ 250 ug/Lall year401
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year401
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year401

How strict are these limits?

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

Same industry: the 130 Chemicals and Allied Products 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/LA0127697 · MCP: https://passage-data.com/mcp