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Mabank, City of

Sewage treatment plant, Mabank, Texas. NPDES permit TX0052949, in force until Nov 18, 2029. Last 12 months: over a limit 32 times (last August 2026). 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
49 values over a limit, 0 required values missing, 0 of 12 reports late

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

All 32 values over a limit
Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], daily average10.0426 mg/L≤ 2 mg/L402%
October 2025Nitrogen, ammonia total [as N], daily average34.2 lb/d≤ 7.5 lb/d356%
October 2025Nitrogen, ammonia total [as N], single grab sample20.5 mg/L≤ 15 mg/L37%
December 2025E. coli, daily average672.356 CFU/100mL≤ 126 CFU/100mL434%
December 2025E. coli, single grab sample980.4 CFU/100mL≤ 399 CFU/100mL146%
January 2026E. coli, daily average307.522 CFU/100mL≤ 126 CFU/100mL144%
January 2026E. coli, single grab sample1413.6 CFU/100mL≤ 399 CFU/100mL254%
January 2026Flow, in conduit or thru treatment plant, daily average.469 MGD≤ .45 MGD4%
January 2026Nitrogen, ammonia total [as N], daily average18.58 mg/L≤ 8 mg/L132%
January 2026Nitrogen, ammonia total [as N], daily average75.47 lb/d≤ 30 lb/d152%
January 2026Nitrogen, ammonia total [as N], single grab sample27.2 mg/L≤ 15 mg/L81%
February 2026E. coli, daily average410.47 CFU/100mL≤ 126 CFU/100mL226%
February 2026E. coli, single grab sample461.1 CFU/100mL≤ 399 CFU/100mL16%
February 2026Nitrogen, ammonia total [as N], daily average19.82 mg/L≤ 8 mg/L148%
February 2026Nitrogen, ammonia total [as N], daily average75.14 lb/d≤ 30 lb/d150%
February 2026Nitrogen, ammonia total [as N], single grab sample25.5 mg/L≤ 15 mg/L70%
March 2026E. coli, daily average159.445 CFU/100mL≤ 126 CFU/100mL27%
March 2026E. coli, single grab sample1046.2 CFU/100mL≤ 399 CFU/100mL162%
March 2026Nitrogen, ammonia total [as N], daily average14.08 mg/L≤ 8 mg/L76%
March 2026Nitrogen, ammonia total [as N], daily average50.93 lb/d≤ 30 lb/d70%
March 2026Nitrogen, ammonia total [as N], single grab sample22.2 mg/L≤ 15 mg/L48%
April 2026Nitrogen, ammonia total [as N], daily average19.4 lb/d≤ 7.5 lb/d159%
April 2026Nitrogen, ammonia total [as N], daily average5.3144 mg/L≤ 2 mg/L166%
May 2026Nitrogen, ammonia total [as N], daily average12.096 mg/L≤ 2 mg/L505%
May 2026Nitrogen, ammonia total [as N], daily average53.05 lb/d≤ 7.5 lb/d607%
May 2026Nitrogen, ammonia total [as N], single grab sample24.5 mg/L≤ 15 mg/L63%
June 2026Nitrogen, ammonia total [as N], daily average14.05 lb/d≤ 7.5 lb/d87%
June 2026Nitrogen, ammonia total [as N], daily average4.704 mg/L≤ 2 mg/L135%
July 2026Nitrogen, ammonia total [as N], daily average16.32 lb/d≤ 7.5 lb/d118%
July 2026Nitrogen, ammonia total [as N], daily average4.712 mg/L≤ 2 mg/L136%
August 2026Nitrogen, ammonia total [as N], daily average3.384 mg/L≤ 2 mg/L69%
August 2026Nitrogen, ammonia total [as N], daily average8.17 lb/d≤ 7.5 lb/d9%

Limits in force (18)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 4 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendeddaily average≤ 90 mg/Lall year
Solids, total suspendeddaily average≤ 338 lb/dall year
Nitrogen, ammonia total [as N]daily average≤ 2 mg/LApr–Oct
Nitrogen, ammonia total [as N]daily average≤ 8 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]single grab sample≤ 15 mg/LApr–Oct
Nitrogen, ammonia total [as N]single grab sample≤ 15 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]daily average≤ 7.5 lb/dApr–Oct
Nitrogen, ammonia total [as N]daily average≤ 30 lb/dJan, Feb, Mar, Nov, Dec
Flow, in conduit or thru treatment plantdaily average≤ .45 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
BOD, carbonaceous [5 day, 20 C]daily average≤ 30 mg/Lall year
BOD, carbonaceous [5 day, 20 C]single grab sample≤ 100 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 113 lb/dall year

How strict are these limits?

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/TX0052949 · MCP: https://passage-data.com/mcp