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Lone Star NGL Refinery Services LLC

Natural Gas Liquids, Chalmette, Louisiana. NPDES permit LA0124931, in force until Apr 30, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form Q quarterly (11 values)
Renewal application due
Nov 2, 2027 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 4 reports late

Limits in force (11)

ParameterStatisticLimitMonths
Oxygen demand, chem. [high level] [COD]daily maximum≤ 125 mg/Lall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Oil & Greasedaily maximum≤ 15 mg/Lall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Carbon, tot organic [TOC]daily maximum≤ 110 mg/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year

How strict are these limits?

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

Same industry: the 56 Oil and Gas Extraction permits in Louisiana.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/LA0124931 · MCP: https://passage-data.com/mcp