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Lake Jackson, City of

Sewage treatment plant, major discharger, Lake Jackson, Texas. NPDES permit TX0025798, in force until Sep 8, 2030. Last 12 months: over a limit once (last May 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (20 values), outfall TXA form S twice a year
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 4 of 18 reports late

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

Period endingParameterReportedLimitOver by
May 2026Enterococci, daily maximum2400 CFU/100mL≤ 104 CFU/100mL2208%

Limits in force (24)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly minimum≥ 2 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily average≤ 20 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily average≤ 976 lb/dall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendeddaily average≤ 20 mg/Lall year001
Solids, total suspendeddaily maximum≤ 45 mg/Lall year001
Solids, total suspendeddaily average≤ 976 lb/dall year001
Copper, total [as Cu]daily averagereport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]daily averagereport only (lb/d)all year001
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plant2-hour peak≤ 13403 gal/minall year001
Flow, in conduit or thru treatment plantannual average≤ 5.85 MGDall year001
Chlorine, total residualinstantaneous maximum< .1 mg/Lall year001
Chlorine, total residualmonthly minimum≥ 1 mg/Lall year001
Enterococcidaily average≤ 35 CFU/100mLall year001
Enterococcidaily maximum≤ 104 CFU/100mLall year001
Whole effluent toxicity - retest #1single samplereport only (pass=0;fail=1)all yearTXA
Whole effluent toxicity - retest #2single samplereport only (pass=0;fail=1)all yearTXA
LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)single samplereport only (pass=0;fail=1)all yearTXA
LC50 Pass/Fail Static 24Hr Acute Menidia beryllinasingle samplereport only (pass=0;fail=1)all yearTXA

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TX0025798 · MCP: https://passage-data.com/mcp