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Tennessee Gas Pipeline Company LLC - Compressor Station 40 500C1

Natural Gas Transmission, Natchitoches, Louisiana. NPDES permit LA0005631, in force until May 31, 2030. Last 12 months: no values over a limit. 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)
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 8 reports late

Limits in force (11)

ParameterStatisticLimitMonthsOutfall
Oxygen demand, chem. [high level] [COD]daily maximum≤ 125 mg/Lall year001
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
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
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 (gal/d)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year101

How strict are these limits?

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

Same industry: the 10 Natural Gas Transmission 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/LA0005631 · MCP: https://passage-data.com/mcp