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Wynnewood Refining Co. -PLF Remediation Site

Petroleum Refining, Wynnewood, Oklahoma. NPDES permit OK0100544, in force until Aug 31, 2027. Last 12 months: over a limit once (last December 2025). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (17 values)
Renewal application due
Mar 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
December 2025Solids, total suspended, daily maximum67 mg/L≤ 45 mg/L49%

Limits in force (17)

ParameterStatisticLimitMonths
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Carbon, tot organic [TOC]monthly average≤ 75 mg/Lall year
Carbon, tot organic [TOC]daily maximum≤ 95 mg/Lall year
Methyl tert-butyl ether [MTBE]monthly average≤ 70 ug/Lall year
Methyl tert-butyl ether [MTBE]daily maximum≤ 70 ug/Lall year
Polynuclear Aromatic Hydrocarbons [PAHs]monthly average≤ 10 ug/Lall year
Polynuclear Aromatic Hydrocarbons [PAHs]daily maximum≤ 10 ug/Lall year
Benzene, ethylbenzene, toluene, xylene combinationmonthly average≤ 100 ug/Lall year
Benzene, ethylbenzene, toluene, xylene combinationdaily maximum≤ 100 ug/Lall year
Benzenemonthly average≤ 5 ug/Lall year
Benzenedaily maximum≤ 5 ug/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximum≤ .144 MGDall year
Total Petroleum Hydrocarbons - Dieseldaily maximum≤ 1000 ug/Lall year
Total Petroleum Hydrocarbons - Gasolinedaily maximum≤ 1000 ug/Lall year

How strict are these limits?

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

Same industry: the 6 Petroleum Refining and Related Industries permits in Oklahoma.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OK0100544 · MCP: https://passage-data.com/mcp