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Diana Special Utility District

Sewage treatment plant, Diana, Texas. NPDES permit TX0027944 expired Aug 30, 2026; its limits still apply. Last 12 months: over a limit 2 times (last December 2025), 3 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (12 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 2 required values missing, 1 of 12 reports late

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

Period endingParameterReportedLimitOver by
December 2025E. coli, daily average1209.8 CFU/100mL≤ 126 CFU/100mL860%
December 2025E. coli, single grab sample2419.6 CFU/100mL≤ 399 CFU/100mL506%

Limits in force (12)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 4 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≤ 30 lb/dall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendeddaily average≤ 90 mg/Lall year
Solids, total suspendeddaily average≤ 90 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .12 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

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/TX0027944 · MCP: https://passage-data.com/mcp