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Nome, City of

Sewage treatment plant, Nome, Texas. NPDES permit TX0054178 expired Aug 19, 2026; its limits still apply. Last 12 months: over a limit 7 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (17 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
January 2026Nitrogen, ammonia total [as N], daily average8.5 mg/L≤ 8 mg/L6%
February 2026Nitrogen, ammonia total [as N], daily average8.5 mg/L≤ 8 mg/L6%
March 2026Solids, total suspended, daily average50.8 mg/L≤ 45 mg/L13%
May 2026E. coli, single grab sample980 CFU/100mL≤ 399 CFU/100mL146%
June 2026E. coli, single grab sample2420 CFU/100mL≤ 399 CFU/100mL507%
September 2026Nitrogen, ammonia total [as N], daily average11.5 mg/L≤ 8 mg/L44%
September 2026Nitrogen, ammonia total [as N], single grab sample16.6 mg/L≤ 15 mg/L11%

Limits in force (17)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 4 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendeddaily average≤ 45 mg/Lall year
Solids, total suspendeddaily average≤ 94 lb/dall year
Nitrogen, ammonia total [as N]daily average≤ 8 mg/Lall year
Nitrogen, ammonia total [as N]single grab sample≤ 15 mg/Lall year
Nitrogen, ammonia total [as N]daily average≤ 17 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .25 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
BOD, carbonaceous [5 day, 20 C]daily average≤ 20 mg/Lall year
BOD, carbonaceous [5 day, 20 C]single grab sample≤ 65 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 42 lb/dall 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/TX0054178 · MCP: https://passage-data.com/mcp