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Nueces County Water Control and Improvement District No 5

Sewage treatment plant, Banquete, Texas. NPDES permit TX0137197, in force until Jun 25, 2031. Last 12 months: over a limit 11 times (last August 2026), 2 required values missing, 3 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (24 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 1 of 12 reports late

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

Period endingParameterReportedLimitOver by
November 2025BOD, 5-day, 20 deg. C, daily average11.25 mg/L≤ 10 mg/L13%
February 2026BOD, 5-day, 20 deg. C, daily average24.25 mg/L≤ 10 mg/L143%
March 2026BOD, 5-day, 20 deg. C, daily average18 mg/L≤ 10 mg/L80%
May 2026BOD, 5-day, 20 deg. C, daily average15.8 lb/d≤ 8.3 lb/d90%
May 2026Flow, in conduit or thru treatment plant, daily average.185 MGD≤ .1 MGD85%
May 2026Solids, total suspended, daily average15.37 lb/d≤ 13 lb/d18%
June 2026BOD, 5-day, 20 deg. C, daily average11.4 lb/d≤ 8.3 lb/d37%
June 2026Chlorine, total residual, monthly minimum.8 mg/L≥ 1 mg/L20%
June 2026Flow, in conduit or thru treatment plant, daily average.209 MGD≤ .1 MGD109%
June 2026Oxygen, dissolved [DO], monthly minimum2.04 mg/L≥ 4 mg/L49%
August 2026BOD, 5-day, 20 deg. C, daily average12.5 mg/L≤ 10 mg/L25%

Limits in force (24)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 4 mg/Lall year
BOD, 5-day, 20 deg. Cdaily average≤ 10 mg/Lall year
BOD, 5-day, 20 deg. Csingle grab sample≤ 35 mg/Lall year
BOD, 5-day, 20 deg. Cdaily average≤ 8.3 lb/dall 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≤ 13 lb/dall year
Chloride [as Cl]daily averagereport only (mg/L)all year
Chloride [as Cl]single grab samplereport only (mg/L)all year
Chloride [as Cl]daily averagereport only (lb/d)all year
Sulfate, total [as SO4]daily averagereport only (mg/L)all year
Sulfate, total [as SO4]single grab samplereport only (mg/L)all year
Sulfate, total [as SO4]daily averagereport only (lb/d)all year
Flow, in conduit or thru treatment plantdaily average≤ .1 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
Solids, total dissolveddaily averagereport only (mg/L)all year
Solids, total dissolvedsingle grab samplereport only (mg/L)all year
Solids, total dissolveddaily averagereport only (lb/d)all 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/TX0137197 · MCP: https://passage-data.com/mcp