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Detroit, City of

Sewage treatment plant, Detroit, Texas. NPDES permit TX0055581, in force until Nov 10, 2026. Last 12 months: over a limit 12 times (last September 2026), 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (12 values)
Renewal application due
May 14, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
9 values over a limit, 0 required values missing, 6 of 12 reports late

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

Period endingParameterReportedLimitOver by
November 2025E. coli, daily average2129.33 CFU/100mL≤ 126 CFU/100mL1590%
November 2025E. coli, single grab sample2419 CFU/100mL≤ 399 CFU/100mL506%
December 2025E. coli, daily average367.2 CFU/100mL≤ 126 CFU/100mL191%
December 2025E. coli, single grab sample980 CFU/100mL≤ 399 CFU/100mL146%
May 2026E. coli, daily average457 CFU/100mL≤ 126 CFU/100mL263%
May 2026E. coli, single grab sample866 CFU/100mL≤ 399 CFU/100mL117%
June 2026E. coli, daily average775 CFU/100mL≤ 126 CFU/100mL515%
June 2026E. coli, single grab sample1550 CFU/100mL≤ 399 CFU/100mL288%
July 2026E. coli, daily average1103.25 CFU/100mL≤ 126 CFU/100mL776%
July 2026E. coli, single grab sample2420 CFU/100mL≤ 399 CFU/100mL507%
August 2026E. coli, daily average205 CFU/100mL≤ 126 CFU/100mL63%
September 2026E. coli, daily average256 CFU/100mL≤ 126 CFU/100mL103%

Limits in force (12)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 2 mg/Lall year
BOD, 5-day, 20 deg. Cdaily average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Csingle grab sample≤ 100 mg/Lall year
BOD, 5-day, 20 deg. Cdaily average≤ 27 lb/dall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendeddaily average≤ 90 mg/Lall year
Solids, total suspendeddaily average≤ 81 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .108 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
E. colidaily average≤ 126 CFU/100mLall year
E. colisingle grab sample≤ 399 CFU/100mLall year

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/TX0055581 · MCP: https://passage-data.com/mcp