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Texas Department of Criminal Justice

Sewage treatment plant, Huntsville, Texas. NPDES permit TX0031607, in force until Mar 28, 2027. Last 12 months: over a limit 14 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (18 values)
Renewal application due
Sep 29, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
16 values over a limit, 0 required values missing, 0 of 12 reports late

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

All 14 values over a limit
Period endingParameterReportedLimitOver by
December 2025Flow, in conduit or thru treatment plant, daily average.917 MGD≤ .85 MGD8%
December 2025Solids, total suspended, daily average135 lb/d≤ 106 lb/d27%
December 2025Solids, total suspended, daily average20.2 mg/L≤ 15 mg/L35%
January 2026Flow, in conduit or thru treatment plant, daily average.87 MGD≤ .85 MGD2%
January 2026Solids, total suspended, daily average177 lb/d≤ 106 lb/d67%
January 2026Solids, total suspended, daily average27.4 mg/L≤ 15 mg/L83%
January 2026Solids, total suspended, daily maximum41.4 mg/L≤ 40 mg/L4%
May 2026Nitrogen, ammonia total [as N], daily average2.38 mg/L≤ 2 mg/L19%
May 2026Solids, total suspended, daily average292 lb/d≤ 106 lb/d175%
May 2026Solids, total suspended, daily average71.8 mg/L≤ 15 mg/L379%
May 2026Solids, total suspended, daily maximum268 mg/L≤ 40 mg/L570%
June 2026Solids, total suspended, daily average128 lb/d≤ 106 lb/d21%
June 2026Solids, total suspended, daily average24.8 mg/L≤ 15 mg/L65%
June 2026Solids, total suspended, daily maximum73.1 mg/L≤ 40 mg/L83%

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 suspendeddaily maximum≤ 40 mg/Lall year
Solids, total suspendeddaily average≤ 106 lb/dall year
Nitrogen, ammonia total [as N]daily average≤ 2 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/Lall year
Nitrogen, ammonia total [as N]daily average≤ 14 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .85 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≤ 71 lb/dall year

How strict are these limits?

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/TX0031607 · MCP: https://passage-data.com/mcp