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Enterprise Products Operating LLC

Industrial Organic Chemicals, Baytown, Texas. NPDES permit TX0139076, in force until Jan 15, 2030. 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 007 form A monthly (6 values), outfall 008 form A monthly (14 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 24 reports late

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

Period endingParameterReportedLimitOver by
June 2026Sulfate, total [as SO4], daily average397.66 mg/L≤ 280 mg/L42%
August 2026Solids, total dissolved, daily average1251.5 mg/L≤ 1142 mg/L10%
August 2026Sulfate, total [as SO4], daily average379.58 mg/L≤ 280 mg/L36%

Limits in force (20)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6 SUall year007
pHmaximum≤ 9 SUall year007
Oil & Greasedaily maximum≤ 15 mg/Lall year007
Carbon, tot organic [TOC]daily maximum≤ 75 mg/Lall year007
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year007
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year007
pHminimum≥ 6 SUall year008
pHmaximum≤ 9 SUall year008
Solids, total suspendeddaily average≤ 30 mg/Lall year008
Solids, total suspendeddaily maximum≤ 100 mg/Lall year008
Oil & Greasedaily average≤ 15 mg/Lall year008
Oil & Greasedaily maximum≤ 20 mg/Lall year008
Sulfate, total [as SO4]daily average≤ 280 mg/Lall year008
Sulfate, total [as SO4]daily maximum≤ 593 mg/Lall year008
Zinc, total [as Zn]daily averagereport only (mg/L)all year008
Zinc, total [as Zn]daily maximumreport only (mg/L)all year008
Flow, in conduit or thru treatment plantdaily average≤ .6 MGDall year008
Flow, in conduit or thru treatment plantdaily maximum≤ .9 MGDall year008
Solids, total dissolveddaily average≤ 1142 mg/Lall year008
Solids, total dissolveddaily maximum≤ 2416 mg/Lall year008

New limits from Feb 1, 2028

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Zinc, total [as Zn], daily average0.262 mg/Lnew0.082 mg/L (11 values)0.313×
Zinc, total [as Zn], daily maximum0.555 mg/Lnew0.113 mg/L (11 values)0.204×

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/TX0139076 · MCP: https://passage-data.com/mcp