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Galveston, City of

Sewage treatment plant, major discharger, Galveston, Texas. NPDES permit TX0126977 expired Jul 26, 2026; its limits still apply. Last 12 months: over a limit 16 times (last August 2026), 3 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (15 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 0 of 12 reports late

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

All 16 values over a limit
Period endingParameterReportedLimitOver by
October 2025Enterococci, daily average47.2 CFU/100mL≤ 35 CFU/100mL35%
October 2025Enterococci, daily maximum224 CFU/100mL≤ 104 CFU/100mL115%
December 2025Enterococci, daily average377.6 CFU/100mL≤ 35 CFU/100mL979%
December 2025Enterococci, daily maximum1410 CFU/100mL≤ 104 CFU/100mL1256%
January 2026Chlorine, total residual, monthly minimum0 mg/L≥ 1 mg/L100%
January 2026Enterococci, daily average328 CFU/100mL≤ 35 CFU/100mL837%
January 2026Enterococci, daily maximum866 CFU/100mL≤ 104 CFU/100mL733%
January 2026pH, minimum5.8 SU≥ 6 SU—
February 2026Chlorine, total residual, monthly minimum0 mg/L≥ 1 mg/L100%
March 2026Chlorine, total residual, monthly minimum0 mg/L≥ 1 mg/L100%
April 2026Chlorine, total residual, monthly minimum0 mg/L≥ 1 mg/L100%
May 2026Solids, total suspended, daily average74.2 lb/d≤ 50 lb/d48%
July 2026Chlorine, total residual, monthly minimum0 mg/L≥ 1 mg/L100%
July 2026Enterococci, daily average83.9 CFU/100mL≤ 35 CFU/100mL140%
July 2026Enterococci, daily maximum2420 CFU/100mL≤ 104 CFU/100mL2227%
August 2026Chlorine, total residual, monthly minimum0 mg/L≥ 1 mg/L100%

Limits in force (15)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 2 mg/Lall year
BOD, 5-day, 20 deg. Cdaily average≤ 20 mg/Lall year
BOD, 5-day, 20 deg. Csingle grab sample≤ 65 mg/Lall year
BOD, 5-day, 20 deg. Cdaily average≤ 50 lb/dall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendeddaily average≤ 20 mg/Lall year
Solids, total suspendedsingle grab sample≤ 65 mg/Lall year
Solids, total suspendeddaily average≤ 50 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .3 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly minimum≥ 1 mg/Lall year
Chlorine, total residualmonthly maximum≤ 4 mg/Lall year
Enterococcidaily average≤ 35 CFU/100mLall year
Enterococcidaily maximum≤ 104 CFU/100mLall year

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TX0126977 · MCP: https://passage-data.com/mcp