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Gulf Coast Fractionators

Crude Petroleum And Natural Gas, Mont Belvieu, Texas. NPDES permit TX0085928, in force until Oct 5, 2028. Last 12 months: over a limit 23 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (9 values), outfall 101 form A monthly (8 values)
Renewal application due
Apr 8, 2028 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
9 values over a limit, 0 required values missing, 0 of 24 reports late

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

All 23 values over a limit
Period endingOutfallParameterReportedLimitOver by
November 2025001Flow, in conduit or thru treatment plant, daily maximum.9216 MGD≤ .5577 MGD65%
December 2025001Flow, in conduit or thru treatment plant, daily maximum.804 MGD≤ .5577 MGD44%
February 2026101Flow, in conduit or thru treatment plant, daily average.2069 MGD≤ .19344 MGD7%
February 2026101Flow, in conduit or thru treatment plant, daily maximum.423 MGD≤ .3545 MGD19%
March 2026001Flow, in conduit or thru treatment plant, daily maximum.671 MGD≤ .5577 MGD20%
March 2026101Flow, in conduit or thru treatment plant, daily average.245 MGD≤ .19344 MGD27%
March 2026101Flow, in conduit or thru treatment plant, daily maximum.703 MGD≤ .3545 MGD98%
April 2026001Flow, in conduit or thru treatment plant, daily maximum.726 MGD≤ .5577 MGD30%
April 2026101BOD, 5-day, 20 deg. C, daily average27.7 mg/L≤ 20 mg/L39%
April 2026101BOD, 5-day, 20 deg. C, daily average39.46 lb/d≤ 31.02 lb/d27%
April 2026101BOD, 5-day, 20 deg. C, daily maximum49.4 mg/L≤ 30 mg/L65%
April 2026101BOD, 5-day, 20 deg. C, daily maximum73.03 lb/d≤ 46.54 lb/d57%
April 2026101Flow, in conduit or thru treatment plant, daily average.231 MGD≤ .19344 MGD19%
April 2026101Flow, in conduit or thru treatment plant, daily maximum1.427 MGD≤ .3545 MGD303%
May 2026001Flow, in conduit or thru treatment plant, daily maximum.9841 MGD≤ .5577 MGD76%
May 2026101Flow, in conduit or thru treatment plant, daily maximum.3693 MGD≤ .3545 MGD4%
June 2026101Flow, in conduit or thru treatment plant, daily average.2366 MGD≤ .19344 MGD22%
July 2026001Carbon, tot organic [TOC], daily maximum93.4 mg/L≤ 75 mg/L25%
July 2026001Flow, in conduit or thru treatment plant, daily maximum.7203 MGD≤ .5577 MGD29%
July 2026101BOD, 5-day, 20 deg. C, daily average31.99 lb/d≤ 31.02 lb/d3%
July 2026101BOD, 5-day, 20 deg. C, daily maximum46.1 mg/L≤ 30 mg/L54%
July 2026101BOD, 5-day, 20 deg. C, daily maximum84.28 lb/d≤ 46.54 lb/d81%
July 2026101Flow, in conduit or thru treatment plant, daily average.21339 MGD≤ .19344 MGD10%

Limits in force (17)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Carbon, tot organic [TOC]daily maximum≤ 75 mg/Lall year001
Flow, in conduit or thru treatment plantdaily average≤ .3967 MGDall year001
Flow, in conduit or thru treatment plantdaily maximum≤ .5577 MGDall year001
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualdaily maximumreport only (mg/L)all year001
BOD, 5-day, 20 deg. Cdaily average≤ 20 mg/Lall year101
BOD, 5-day, 20 deg. Cdaily maximum≤ 30 mg/Lall year101
BOD, 5-day, 20 deg. Cdaily average≤ 31.02 lb/dall year101
BOD, 5-day, 20 deg. Cdaily maximum≤ 46.54 lb/dall year101
pHminimum≥ 6 SUall year101
pHmaximum≤ 9 SUall year101
Flow, in conduit or thru treatment plantdaily average≤ .19344 MGDall year101
Flow, in conduit or thru treatment plantdaily maximum≤ .3545 MGDall year101

How strict are these limits?

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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Your permit document is the final word. As JSON: /api/v1/permits/TX0085928 · MCP: https://passage-data.com/mcp