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Energy Transfer GC NGL Fractionators LLC

Natural Gas Liquids, Mont Belvieu, Texas. NPDES permit TX0134068, in force until Feb 6, 2031. Last 12 months: over a limit once (last September 2026), 2 required values missing, 4 of 14 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 20 days after each period: form A monthly (14 values)
Last report on file: September 2026
Oct 2024 – Sep 2025: 4 values over a limit, 0 required values missing, 2 of 18 reports late

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

Period ending	Parameter	Reported	Limit	Over by
September 2026	Carbon, tot organic [TOC], daily maximum	79.49 mg/L	≤ 75 mg/L	6%

Limits in force (14)

Parameter	Statistic	Limit	Months
Oxygen, dissolved [DO]	daily average	report only (mg/L)	all year
BOD, 5-day, 20 deg. C	daily average	≤ 20 mg/L	all year
BOD, 5-day, 20 deg. C	daily maximum	≤ 30 mg/L	all year
BOD, 5-day, 20 deg. C	daily average	≤ 106.42 lb/d	all year
BOD, 5-day, 20 deg. C	daily maximum	≤ 159.63 lb/d	all year
pH	minimum	≥ 6.5 SU	all year
pH	maximum	≤ 9 SU	all year
Oil & Grease	daily maximum	≤ 15 mg/L	all year
Carbon, tot organic [TOC]	daily maximum	≤ 75 mg/L	all year
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year
Chlorine, total residual	daily maximum	≤ .019 mg/L	all year
Flow [dry weather]	daily average	≤ .936 MGD	all year
Flow [dry weather]	daily maximum	≤ 1.276 MGD	all year

New limits from Mar 1, 2029

Parameter	New limit	New or tighter	Median, last 12 months	× new limit
Oxygen, dissolved [DO], daily average	2 mg/L	new	5.93 mg/L (7 values)	2.96×

How strict are these limits?

pH, minimum at least 6.5 SU — stricter than 96% of 1,035 other minor industrial and other permits in Texas; 3% have the same limit
Chlorine, total residual, daily maximum .019 mg/L — stricter than 70% of 27 other minor industrial and other permits in Texas; 19% have the same limit
BOD, 5-day, 20 deg. C, daily maximum 30 mg/L — stricter than 65% of 79 other minor industrial and other permits in Texas; 19% have the same limit

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

Same industry: the 30 Oil and Gas Extraction permits in Texas.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TX0134068 · MCP: https://passage-data.com/mcp