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Linde Inc

Industrial Gases, Deer Park, Texas. NPDES permit TX0003239, in force until Jul 23, 2029. Last 12 months: over a limit 7 times (last April 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form A monthly (22 values), outfall 101 form A monthly (4 values), outfall 001 form Q quarterly
Last report on file
September 2026
Oct 2024 – Sep 2025
13 values over a limit, 1 required value missing, 1 of 28 reports late

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

Period endingParameterReportedLimitOver by
January 2026E. coli, daily average171.7 MPN/100mL≤ 126 CFU/100mL36%
January 2026E. coli, daily maximum686.7 MPN/100mL≤ 399 CFU/100mL72%
March 2026Copper, total [as Cu], daily average.0441 mg/L≤ .0403 mg/L9%
March 2026Copper, total [as Cu], daily maximum.0875 mg/L≤ .0852 mg/L3%
April 2026Copper, total [as Cu], daily average.049 mg/L≤ .0403 mg/L22%
April 2026Copper, total [as Cu], daily maximum.07903 lb/d≤ .063 lb/d25%
April 2026Copper, total [as Cu], daily maximum.119 mg/L≤ .0852 mg/L40%

Limits in force (28)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily average≤ 100 deg Fall year001
Temperature, water deg. fahrenheitdaily maximum≤ 105 deg Fall year001
BOD, 5-day, 20 deg. Cdaily average≤ 20 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year001
Oxygen demand, chem. [high level] [COD]daily average≤ 290 lb/dall year001
Oxygen demand, chem. [high level] [COD]daily maximum≤ 437 lb/dall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendeddaily average≤ 75 lb/dall year001
Solids, total suspendeddaily maximum≤ 150 lb/dall year001
Oil & Greasedaily average≤ 14 lb/dall year001
Oil & Greasedaily maximum≤ 28 lb/dall year001
Copper, total [as Cu]daily average≤ .0403 mg/Lall year001
Copper, total [as Cu]daily maximum≤ .0852 mg/Lall year001
Copper, total [as Cu]daily average≤ .029 lb/dall year001
Copper, total [as Cu]daily maximum≤ .063 lb/dall year001
Flow, in conduit or thru treatment plantdaily average≤ .43 MGDall year001
Flow, in conduit or thru treatment plantdaily maximum≤ .85 MGDall year001
E. colidaily average≤ 126 CFU/100mLall year001
E. colidaily maximum≤ 399 CFU/100mLall year001
Mercury, total [as Hg]daily average≤ .00041 mg/Lall year001
Mercury, total [as Hg]daily maximum≤ .00086 mg/Lall year001
Mercury, total [as Hg]daily average≤ .00029 lb/dall year001
Mercury, total [as Hg]daily maximum≤ .00061 lb/dall year001
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year101
Chlorine, total residualminimum≥ 1 mg/Lall year101
Chlorine, total residualmonthly maximum≤ 4 mg/Lall year101

How strict are these limits?

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

Same industry: the 165 Chemicals and Allied Products permits in Texas.

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Your permit document is the final word. As JSON: /api/v1/permits/TX0003239 · MCP: https://passage-data.com/mcp