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Fort Bend County Municipal Utility District No 134A

Sewage treatment plant, Fort Bend County, Texas. NPDES permit TX0136875, in force until May 10, 2029. Last 12 months: over a limit 5 times (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (18 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
November 2025Nitrogen, ammonia total [as N], daily maximum11.7 mg/L≤ 10 mg/L17%
December 2025Nitrogen, ammonia total [as N], daily maximum14.2 mg/L≤ 10 mg/L42%
February 2026E. coli, daily maximum2420 CFU/100mL≤ 399 CFU/100mL507%
March 2026BOD, carbonaceous [5 day, 20 C], daily average11 mg/L≤ 10 mg/L10%
March 2026Solids, total suspended, daily maximum27.5 mg/L≤ 25 mg/L10%

Limits in force (18)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 5 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendeddaily average≤ 10 mg/Lall year
Solids, total suspendeddaily maximum≤ 25 mg/Lall year
Solids, total suspendeddaily average≤ 60 lb/dall year
Nitrogen, ammonia total [as N]daily average≤ 3 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/Lall year
Nitrogen, ammonia total [as N]daily average≤ 18 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .72 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
E. colidaily average≤ 126 CFU/100mLall year
E. colidaily maximum≤ 399 CFU/100mLall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 60 lb/dall year

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/TX0136875 · MCP: https://passage-data.com/mcp