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HollyFrontier Tulsa Refining LLC (West)

Petroleum Refining, major discharger, Tulsa, Oklahoma. NPDES permit OK0000876 expired Dec 31, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (32 values), outfall 999 form A monthly (2 values), outfall TX1 form Q quarterly (17 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 28 reports late

Limits in force (51)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cmonthly average≤ 61 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 119 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 1363 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 2660 lb/dall year001
Oxygen demand, chem. [high level] [COD]monthly average≤ 440 mg/Lall year001
Oxygen demand, chem. [high level] [COD]daily maximum≤ 849 mg/Lall year001
Oxygen demand, chem. [high level] [COD]monthly average≤ 9824 lb/dall year001
Oxygen demand, chem. [high level] [COD]daily maximum≤ 18976 lb/dall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 53.2 mg/Lall year001
Solids, total suspendeddaily maximum≤ 83.1 mg/Lall year001
Solids, total suspendedmonthly average≤ 1189 lb/dall year001
Solids, total suspendeddaily maximum≤ 1858 lb/dall year001
Oil and grease, hexane extr methodmonthly average≤ 20 mg/Lall year001
Oil and grease, hexane extr methoddaily maximum≤ 38 mg/Lall year001
Oil and grease, hexane extr methodmonthly average≤ 446 lb/dall year001
Oil and grease, hexane extr methoddaily maximum≤ 849 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 22.8 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 49.9 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 510 lb/dall year001
Nitrogen, ammonia total [as N]daily maximum≤ 1115 lb/dall year001
Sulfide, total [as S]monthly average≤ .32 mg/Lall year001
Sulfide, total [as S]daily maximum≤ .71 mg/Lall year001
Sulfide, total [as S]monthly average≤ 7.12 lb/dall year001
Sulfide, total [as S]daily maximum≤ 15.85 lb/dall year001
Phenolics, total recoverablemonthly average≤ .34 mg/Lall year001
Phenolics, total recoverabledaily maximum≤ .88 mg/Lall year001
Phenolics, total recoverablemonthly average≤ 7.66 lb/dall year001
Phenolics, total recoverabledaily maximum≤ 19.72 lb/dall 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
Mercury, total [as Hg]monthly averagereport only (ug/L)all year999
Mercury, total [as Hg]daily maximumreport only (ug/L)all year999
pHdaily minimumreport only (SU)all yearTX1
pHdaily maximumreport only (SU)all yearTX1
Nitrogen, ammonia total [as N]daily minimumreport only (mg/L)all yearTX1
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all yearTX1
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all yearTX1
Whole effluent toxicity - retest #148-hour minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #248-hour minimumreport only (pass=0;fail=1)all yearTX1
Whole Effluent Toxicity [WET] - P. promelas48-hour minimum≥ 100 %all yearTX1
Solids, total dissolved- 180 deg. Cdaily minimumreport only (mg/L)all yearTX1
Solids, total dissolved- 180 deg. Cmonthly averagereport only (mg/L)all yearTX1
Solids, total dissolved- 180 deg. Cdaily maximumreport only (mg/L)all yearTX1
LC50 Static Renewal 48Hr Acute Daphnia pulex48-hour minimumreport only (%)all yearTX1
LC50 Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (%)all yearTX1
LC50 Pass/Fail Static Renewal 48Hr Acute Daphnia Pulex48-hour minimumreport only (pass=0;fail=1)all yearTX1
LC50 Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (pass=0;fail=1)all yearTX1
%Mortality Static Renewal 48Hr Acute Daphnia Pulex48-hour minimumreport only (%)all yearTX1
% Mortality Static Renewal 48 Hr Pimephales promelas or use TJA6C48-hour minimumreport only (%)all yearTX1

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/OK0000876 · MCP: https://passage-data.com/mcp