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ONEOK Hydrocarbon LP - Eunice Fractionator

Natural Gas Liquids, Eunice, Louisiana. NPDES permit LA0005436, in force until Jan 31, 2031. Last 12 months: over a limit 6 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form Q quarterly, outfall 002 form S twice a year, outfall 101 form S twice a year
Last report on file
June 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 18 reports late

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

Period endingParameterReportedLimitOver by
June 2026BOD, 5-day, 20 deg. C, daily maximum480 mg/L≤ 45 mg/L967%
June 2026BOD, 5-day, 20 deg. C, monthly average480 mg/L≤ 30 mg/L1500%
June 2026Coliform, fecal general, daily maximum> 24100 #/100mL≤ 400 #/100mL—
June 2026Coliform, fecal general, monthly geometric mean> 24100 #/100mL≤ 200 #/100mL—
June 2026Solids, total suspended, daily maximum57.9 mg/L≤ 45 mg/L29%
June 2026Solids, total suspended, monthly average57.9 mg/L≤ 30 mg/L93%

Limits in force (31)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)all year001
Oxygen demand, chem. [high level] [COD]daily maximum≤ 125 mg/Lall year001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 8.5 SUall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall 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
Chlorine, free availabledaily maximum≤ .5 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year002
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year002
pHinstantaneous minimum≥ 6 SUall year002
pHinstantaneous maximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 30 mg/Lall year002
Solids, total suspendeddaily maximum≤ 45 mg/Lall year002
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year002
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year002
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year002
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year101
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year101
Solids, total suspendedmonthly average≤ 30 mg/Lall year101
Solids, total suspendeddaily maximum≤ 45 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
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year101
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year101

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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/LA0005436 · MCP: https://passage-data.com/mcp