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Driscoll, City of

Sewage treatment plant, Driscoll, Texas. NPDES permit TX0142476, in force until May 17, 2029. Last 12 months: over a limit 51 times (last August 2026), 2 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
38 values over a limit, 30 required values missing, 8 of 12 reports late

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

All 51 values over a limit
Period endingParameterReportedLimitOver by
October 2025Chlorine, total residual, monthly maximum4.4 mg/L≤ 4 mg/L10%
October 2025Chlorine, total residual, monthly minimum.28 mg/L≥ 1 mg/L72%
October 2025E. coli, daily average2419.6 CFU/100mL≤ 126 CFU/100mL1820%
October 2025E. coli, single grab sample2419.6 CFU/100mL≤ 399 CFU/100mL506%
October 2025Oxygen, dissolved [DO], monthly minimum1.79 mg/L≥ 4 mg/L55%
October 2025Solids, total suspended, daily average24.08 mg/L≤ 20 mg/L20%
November 2025Chlorine, total residual, monthly maximum4.42 mg/L≤ 4 mg/L11%
November 2025Chlorine, total residual, monthly minimum.12 mg/L≥ 1 mg/L88%
November 2025E. coli, daily average2419.6 CFU/100mL≤ 126 CFU/100mL1820%
November 2025E. coli, single grab sample2419.6 CFU/100mL≤ 399 CFU/100mL506%
November 2025Oxygen, dissolved [DO], monthly minimum2.56 mg/L≥ 4 mg/L36%
November 2025Solids, total suspended, daily average23.2 mg/L≤ 20 mg/L16%
December 2025BOD, 5-day, 20 deg. C, daily average24.02 mg/L≤ 20 mg/L20%
December 2025Chlorine, total residual, monthly minimum0 mg/L≥ 1 mg/L100%
December 2025E. coli, daily average2419.6 CFU/100mL≤ 126 CFU/100mL1820%
December 2025E. coli, single grab sample2419.6 CFU/100mL≤ 399 CFU/100mL506%
December 2025Oxygen, dissolved [DO], monthly minimum.86 mg/L≥ 4 mg/L79%
December 2025Solids, total suspended, daily average37.06 mg/L≤ 20 mg/L85%
December 2025Solids, total suspended, single grab sample66 mg/L≤ 65 mg/L2%
January 2026BOD, 5-day, 20 deg. C, daily average27.85 mg/L≤ 20 mg/L39%
January 2026Chlorine, total residual, monthly minimum.1 mg/L≥ 1 mg/L90%
January 2026E. coli, daily average2419.6 CFU/100mL≤ 126 CFU/100mL1820%
January 2026E. coli, single grab sample2419.6 CFU/100mL≤ 399 CFU/100mL506%
January 2026Oxygen, dissolved [DO], monthly minimum2.99 mg/L≥ 4 mg/L25%
January 2026Solids, total suspended, daily average25.2 mg/L≤ 20 mg/L26%
February 2026BOD, 5-day, 20 deg. C, daily average102.1 lb/d≤ 17 lb/d501%
February 2026Chlorine, total residual, monthly maximum4.4 mg/L≤ 4 mg/L10%
February 2026Chlorine, total residual, monthly minimum.13 mg/L≥ 1 mg/L87%
February 2026Oxygen, dissolved [DO], monthly minimum2.62 mg/L≥ 4 mg/L35%
March 2026BOD, 5-day, 20 deg. C, daily average23.7 mg/L≤ 20 mg/L19%
March 2026Chlorine, total residual, monthly maximum4.4 mg/L≤ 4 mg/L10%
March 2026Chlorine, total residual, monthly minimum.02 mg/L≥ 1 mg/L98%
March 2026E. coli, daily average2419.6 CFU/100mL≤ 126 CFU/100mL1820%
March 2026E. coli, single grab sample2419.6 CFU/100mL≤ 399 CFU/100mL506%
March 2026Oxygen, dissolved [DO], monthly minimum1.53 mg/L≥ 4 mg/L62%
March 2026Solids, total suspended, daily average23.7 mg/L≤ 20 mg/L19%
April 2026Chlorine, total residual, monthly minimum.3 mg/L≥ 1 mg/L70%
April 2026E. coli, daily average2419.6 CFU/100mL≤ 126 CFU/100mL1820%
April 2026E. coli, single grab sample2419.6 CFU/100mL≤ 399 CFU/100mL506%
April 2026Oxygen, dissolved [DO], monthly minimum2.53 mg/L≥ 4 mg/L37%
April 2026Solids, total suspended, daily average26.38 mg/L≤ 20 mg/L32%
May 2026Chlorine, total residual, monthly minimum.39 mg/L≥ 1 mg/L61%
May 2026E. coli, daily average460 CFU/100mL≤ 126 CFU/100mL265%
May 2026E. coli, single grab sample460 CFU/100mL≤ 399 CFU/100mL15%
June 2026Chlorine, total residual, monthly maximum4.4 mg/L≤ 4 mg/L10%
June 2026Chlorine, total residual, monthly minimum.22 mg/L≥ 1 mg/L78%
June 2026Oxygen, dissolved [DO], monthly minimum3.41 mg/L≥ 4 mg/L15%
June 2026pH, maximum9.17 SU≤ 9 SU—
July 2026Chlorine, total residual, monthly minimum0 mg/L≥ 1 mg/L100%
July 2026Oxygen, dissolved [DO], monthly minimum3.93 mg/L≥ 4 mg/L2%
August 2026Chlorine, total residual, monthly minimum.07 mg/L≥ 1 mg/L93%

Limits in force (15)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 4 mg/Lall year
BOD, 5-day, 20 deg. Cdaily average≤ 20 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 65 mg/Lall year
BOD, 5-day, 20 deg. Cdaily average≤ 17 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≤ 17 lb/dall 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

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/TX0142476 · MCP: https://passage-data.com/mcp