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Aqua Texas Inc

Sewerage Systems, Hays County, Texas. NPDES permit TX0100684, in force until Apr 14, 2030. Last 12 months: over a limit 2 times (last November 2025), 11 of 11 reports late. 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
8 values over a limit, 0 required values missing, 9 of 12 reports late

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

Period endingParameterReportedLimitOver by
October 2025Flow, in conduit or thru treatment plant, daily average.0487 MGD≤ .0424 MGD15%
November 2025Flow, in conduit or thru treatment plant, daily average.0562 MGD≤ .0424 MGD33%

Limits in force (18)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 4 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendeddaily average≤ 15 mg/Lall year
Solids, total suspendedsingle grab sample≤ 60 mg/Lall year
Solids, total suspendeddaily average≤ 5.3 lb/dall year
Nitrogen, ammonia total [as N]daily average≤ 3 mg/Lall year
Nitrogen, ammonia total [as N]single grab sample≤ 15 mg/Lall year
Nitrogen, ammonia total [as N]daily average≤ 1.1 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .0424 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. colisingle grab sample≤ 399 CFU/100mLall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]single grab sample≤ 35 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 3.5 lb/dall year

How strict are these limits?

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

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Your permit document is the final word. As JSON: /api/v1/permits/TX0100684 · MCP: https://passage-data.com/mcp