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Fulshear, City of

Sewage treatment plant, major discharger, Fulshear, Texas. NPDES permit TX0101052, in force until Jan 8, 2031. Last 12 months: over a limit 48 times (last August 2026), 2 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (18 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
8 values over a limit, 0 required values missing, 0 of 12 reports late

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

All 48 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, carbonaceous [5 day, 20 C], daily average101 lb/d≤ 58 lb/d74%
October 2025BOD, carbonaceous [5 day, 20 C], daily average17.6 mg/L≤ 10 mg/L76%
October 2025E. coli, daily maximum2420 CFU/100mL≤ 399 CFU/100mL507%
October 2025Nitrogen, ammonia total [as N], daily average14.4 mg/L≤ 3 mg/L380%
October 2025Nitrogen, ammonia total [as N], daily average88.4 lb/d≤ 18 lb/d391%
October 2025Nitrogen, ammonia total [as N], daily maximum22 mg/L≤ 10 mg/L120%
November 2025Nitrogen, ammonia total [as N], daily average36 lb/d≤ 18 lb/d100%
November 2025Nitrogen, ammonia total [as N], daily average8.27 mg/L≤ 3 mg/L176%
December 2025BOD, carbonaceous [5 day, 20 C], daily average11.6 mg/L≤ 10 mg/L16%
December 2025Nitrogen, ammonia total [as N], daily average21.1 lb/d≤ 18 lb/d17%
December 2025Nitrogen, ammonia total [as N], daily average4.5 mg/L≤ 3 mg/L50%
January 2026Chlorine, total residual, monthly minimum.74 mg/L≥ 1 mg/L26%
January 2026Nitrogen, ammonia total [as N], daily average29.1 lb/d≤ 18 lb/d62%
January 2026Nitrogen, ammonia total [as N], daily average5.73 mg/L≤ 3 mg/L91%
February 2026Nitrogen, ammonia total [as N], daily average10.88 mg/L≤ 3 mg/L263%
February 2026Nitrogen, ammonia total [as N], daily average50.07 lb/d≤ 18 lb/d178%
February 2026Nitrogen, ammonia total [as N], daily maximum15 mg/L≤ 10 mg/L50%
March 2026Nitrogen, ammonia total [as N], daily average41.3 lb/d≤ 18 lb/d129%
March 2026Nitrogen, ammonia total [as N], daily average8.4 mg/L≤ 3 mg/L180%
March 2026Nitrogen, ammonia total [as N], daily maximum11 mg/L≤ 10 mg/L10%
April 2026Chlorine, total residual, monthly maximum4.97 mg/L≤ 4 mg/L24%
April 2026Nitrogen, ammonia total [as N], daily average11.2 mg/L≤ 3 mg/L273%
April 2026Nitrogen, ammonia total [as N], daily average58.2 lb/d≤ 18 lb/d223%
April 2026Nitrogen, ammonia total [as N], daily maximum24 mg/L≤ 10 mg/L140%
April 2026Solids, total suspended, daily average136.5 lb/d≤ 88 lb/d55%
April 2026Solids, total suspended, daily average< 28.2 mg/L≤ 15 mg/L88%
April 2026Solids, total suspended, daily maximum59 mg/L≤ 40 mg/L48%
May 2026Chlorine, total residual, monthly maximum7.04 mg/L≤ 4 mg/L76%
May 2026E. coli, daily maximum460 CFU/100mL≤ 399 CFU/100mL15%
May 2026Nitrogen, ammonia total [as N], daily average11.6 mg/L≤ 3 mg/L287%
May 2026Nitrogen, ammonia total [as N], daily average66.5 lb/d≤ 18 lb/d269%
May 2026Nitrogen, ammonia total [as N], daily maximum16 mg/L≤ 10 mg/L60%
June 2026Flow, in conduit or thru treatment plant, daily average.73 MGD≤ .7 MGD4%
June 2026Nitrogen, ammonia total [as N], daily average126 lb/d≤ 18 lb/d600%
June 2026Nitrogen, ammonia total [as N], daily average21 mg/L≤ 3 mg/L600%
June 2026Nitrogen, ammonia total [as N], daily maximum34 mg/L≤ 10 mg/L240%
July 2026BOD, carbonaceous [5 day, 20 C], daily average14.7 mg/L≤ 10 mg/L47%
July 2026BOD, carbonaceous [5 day, 20 C], daily average81.4 lb/d≤ 58 lb/d40%
July 2026E. coli, daily maximum2420 CFU/100mL≤ 399 CFU/100mL507%
July 2026Nitrogen, ammonia total [as N], daily average180.7 lb/d≤ 18 lb/d904%
July 2026Nitrogen, ammonia total [as N], daily average33.2 mg/L≤ 3 mg/L1007%
July 2026Nitrogen, ammonia total [as N], daily maximum35.6 mg/L≤ 10 mg/L256%
July 2026Solids, total suspended, daily average16.4 mg/L≤ 15 mg/L9%
July 2026Solids, total suspended, daily average91.1 lb/d≤ 88 lb/d4%
August 2026Flow, in conduit or thru treatment plant, daily average.71 MGD≤ .7 MGD1%
August 2026Nitrogen, ammonia total [as N], daily average181 lb/d≤ 18 lb/d906%
August 2026Nitrogen, ammonia total [as N], daily average29.1 mg/L≤ 3 mg/L870%
August 2026Nitrogen, ammonia total [as N], daily maximum36.2 mg/L≤ 10 mg/L262%

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≤ 15 mg/Lall year
Solids, total suspendeddaily maximum≤ 40 mg/Lall year
Solids, total suspendeddaily average≤ 88 lb/dall year
Nitrogen, ammonia total [as N]daily average≤ 3 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/Lall year
Nitrogen, ammonia total [as N]daily average≤ 18 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .7 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. colidaily maximum≤ 399 CFU/100mLall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 58 lb/dall year

Cited limits by parameter: Texas's rules and the federal ones.

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