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Blanchard Refining Company LLC

Petroleum Refining, major discharger, Texas City, Texas. NPDES permit TX0003697 expired Mar 29, 2023; its limits still apply. Last 12 months: over a limit 3 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form B monthly (18 values), outfall 003 form A monthly (6 values), outfall 004 form A monthly (6 values), outfall 005 form A monthly (6 values), outfall 006 form A monthly (5 values), outfall 009 form A monthly (6 values), and 3 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 1 of 108 reports late

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

Period endingOutfallParameterReportedLimitOver by
August 2026003Oil & Grease, daily maximum42 mg/L≤ 15 mg/L180%
August 2026005Oil & Grease, daily maximum20 mg/L≤ 15 mg/L33%
August 2026012Oxygen demand, chem. [high level] [COD], daily maximum887 mg/L≤ 135 mg/L557%

Limits in force (84)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily maximum≤ 110 deg Fall year001
Oxygen, dissolved [DO]monthly minimum≥ 3 mg/Lall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Nitrogen, ammonia total [as N]daily average≤ 4.7 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Cyanide, free [amenable to chlorination]daily averagereport only (mg/L)all year001
Cyanide, free [amenable to chlorination]daily maximum≤ .026 mg/Lall year001
Chromium, hexavalent [as Cr]daily averagereport only (mg/L)all year001
Chromium, hexavalent [as Cr]daily maximum≤ .025 mg/Lall year001
Selenium, total [as Se]daily averagereport only (mg/L)all year001
Selenium, total [as Se]daily maximum≤ .012 mg/Lall year001
Flow, in conduit or thru treatment plantdaily average≤ 2.2 MGDall year001
Flow, in conduit or thru treatment plantdaily maximum≤ 3.051 MGDall year001
Enterococcidaily average≤ 35 CFU/100mLall year001
Enterococcidaily maximum≤ 89 CFU/100mLall year001
BOD, carbonaceous [5 day, 20 C]daily average≤ 5 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year001
Oxygen demand, chem. [high level] [COD]daily maximum≤ 135 mg/Lall year003
pHminimum≥ 6 SUall year003
pHmaximum≤ 9 SUall year003
Oil & Greasedaily maximum≤ 15 mg/Lall year003
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
Oxygen demand, chem. [high level] [COD]daily maximum≤ 135 mg/Lall year004
pHminimum≥ 6 SUall year004
pHmaximum≤ 9 SUall year004
Oil & Greasedaily maximum≤ 15 mg/Lall year004
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
Oxygen demand, chem. [high level] [COD]daily maximum≤ 135 mg/Lall year005
pHminimum≥ 6 SUall year005
pHmaximum≤ 9 SUall year005
Oil & Greasedaily maximum≤ 15 mg/Lall year005
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year005
pHminimum≥ 6 SUall year006
pHmaximum≤ 9 SUall year006
Solids, total suspendeddaily maximum≤ 100 mg/Lall year006
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year006
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year006
Oxygen demand, chem. [high level] [COD]daily maximum≤ 135 mg/Lall year009
pHminimum≥ 6 SUall year009
pHmaximum≤ 9 SUall year009
Oil & Greasedaily maximum≤ 15 mg/Lall year009
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year009
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year009
Oxygen demand, chem. [high level] [COD]daily maximum≤ 135 mg/Lall year012
pHminimum≥ 6 SUall year012
pHmaximum≤ 9 SUall year012
Oil & Greasedaily maximum≤ 15 mg/Lall year012
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year012
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year012
Oxygen demand, chem. [high level] [COD]daily maximum≤ 135 mg/Lall year014
pHminimum≥ 6 SUall year014
pHmaximum≤ 9 SUall year014
Oil & Greasedaily maximum≤ 15 mg/Lall year014
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year014
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year014
Temperature, water deg. fahrenheitdaily maximum≤ 110 deg Fall year101
BOD, 5-day, 20 deg. Cdaily average≤ 694 lb/dall year101
BOD, 5-day, 20 deg. Cdaily maximum≤ 1266 lb/dall year101
Oxygen demand, chem. [high level] [COD]daily average≤ 5020 lb/dall year101
Oxygen demand, chem. [high level] [COD]daily maximum≤ 9765 lb/dall year101
pHminimum≥ 6 SUall year101
pHmaximum≤ 9 SUall year101
Solids, total suspendeddaily average≤ 709 lb/dall year101
Solids, total suspendeddaily maximum≤ 1477 lb/dall year101
Oil & Greasedaily average≤ 285 lb/dall year101
Oil & Greasedaily maximum≤ 481 lb/dall year101
Nitrogen, ammonia total [as N]daily average≤ 300 lb/dall year101
Nitrogen, ammonia total [as N]daily maximum≤ 659 lb/dall year101
Sulfide, total [as S]daily average≤ 6.29 lb/dall year101
Sulfide, total [as S]daily maximum≤ 13.27 lb/dall year101
Chromium, hexavalent [as Cr]daily average≤ 3.79 lb/dall year101
Chromium, hexavalent [as Cr]daily maximum≤ 7.67 lb/dall year101
Chromium, total [as Cr]daily average≤ 7.42 lb/dall year101
Chromium, total [as Cr]daily maximum≤ 18.2 lb/dall year101
Flow, in conduit or thru treatment plantdaily average≤ 2.2 MGDall year101
Flow, in conduit or thru treatment plantdaily maximum≤ 3.051 MGDall year101
Enterococcidaily average≤ 35 CFU/100mLall year101
Enterococcidaily maximum≤ 89 CFU/100mLall year101
Phenolic compounds, totaldaily average≤ 3.39 lb/dall year101
Phenolic compounds, totaldaily maximum≤ 8.49 lb/dall year101

How strict are these limits?

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

Same industry: the 32 Petroleum Refining and Related Industries permits in Texas.

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Your permit document is the final word. As JSON: /api/v1/permits/TX0003697 · MCP: https://passage-data.com/mcp