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Van Alstyne, City of

Sewage treatment plant, Van Alstyne, Texas. NPDES permit TX0026883, in force until Jan 30, 2028. Last 12 months: over a limit 53 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (16 values)
Renewal application due
Aug 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
97 values over a limit, 0 required values missing, 9 of 12 reports late

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

All 53 values over a limit
Period endingParameterReportedLimitOver by
October 2025E. coli, daily maximum1732.9 CFU/100mL≤ 399 CFU/100mL334%
October 2025Nitrogen, ammonia total [as N], daily average22.44 mg/L≤ 2 mg/L1022%
October 2025Nitrogen, ammonia total [as N], daily average82 lb/d≤ 16 lb/d413%
October 2025Nitrogen, ammonia total [as N], daily maximum24.5 mg/L≤ 10 mg/L145%
November 2025E. coli, daily maximum2419.6 CFU/100mL≤ 399 CFU/100mL506%
November 2025Nitrogen, ammonia total [as N], daily average182 lb/d≤ 16 lb/d1038%
November 2025Nitrogen, ammonia total [as N], daily average22.65 mg/L≤ 2 mg/L1033%
November 2025Nitrogen, ammonia total [as N], daily maximum34.4 mg/L≤ 10 mg/L244%
December 2025E. coli, daily maximum2419.6 CFU/100mL≤ 399 CFU/100mL506%
December 2025Nitrogen, ammonia total [as N], daily average236 lb/d≤ 16 lb/d1375%
December 2025Nitrogen, ammonia total [as N], daily average24.38 mg/L≤ 2 mg/L1119%
December 2025Nitrogen, ammonia total [as N], daily maximum29.8 mg/L≤ 10 mg/L198%
December 2025Solids, total suspended, daily average157 lb/d≤ 119 lb/d32%
December 2025Solids, total suspended, daily average18.64 mg/L≤ 15 mg/L24%
December 2025Solids, total suspended, daily maximum54 mg/L≤ 40 mg/L35%
January 2026Nitrogen, ammonia total [as N], daily average110 lb/d≤ 16 lb/d588%
January 2026Nitrogen, ammonia total [as N], daily average24.95 mg/L≤ 2 mg/L1148%
January 2026Nitrogen, ammonia total [as N], daily maximum33.7 mg/L≤ 10 mg/L237%
January 2026Solids, total suspended, daily average16.5 mg/L≤ 15 mg/L10%
February 2026Nitrogen, ammonia total [as N], daily average15.28 mg/L≤ 2 mg/L664%
February 2026Nitrogen, ammonia total [as N], daily average81 lb/d≤ 16 lb/d406%
February 2026Nitrogen, ammonia total [as N], daily maximum26.3 mg/L≤ 10 mg/L163%
March 2026Nitrogen, ammonia total [as N], daily average118 lb/d≤ 16 lb/d638%
March 2026Nitrogen, ammonia total [as N], daily average18 mg/L≤ 2 mg/L800%
March 2026Nitrogen, ammonia total [as N], daily maximum24.4 mg/L≤ 10 mg/L144%
April 2026E. coli, daily maximum2419.6 CFU/100mL≤ 399 CFU/100mL506%
April 2026Nitrogen, ammonia total [as N], daily average117 lb/d≤ 16 lb/d631%
April 2026Nitrogen, ammonia total [as N], daily average19.96 mg/L≤ 2 mg/L898%
April 2026Nitrogen, ammonia total [as N], daily maximum58 mg/L≤ 10 mg/L480%
April 2026Solids, total suspended, daily average137 lb/d≤ 119 lb/d15%
April 2026Solids, total suspended, daily average18.68 mg/L≤ 15 mg/L25%
April 2026Solids, total suspended, daily maximum58 mg/L≤ 40 mg/L45%
May 2026Nitrogen, ammonia total [as N], daily average134 lb/d≤ 16 lb/d738%
May 2026Nitrogen, ammonia total [as N], daily average22.65 mg/L≤ 2 mg/L1033%
May 2026Nitrogen, ammonia total [as N], daily maximum26 mg/L≤ 10 mg/L160%
June 2026Nitrogen, ammonia total [as N], daily average53 lb/d≤ 16 lb/d231%
June 2026Nitrogen, ammonia total [as N], daily average8.79 mg/L≤ 2 mg/L340%
June 2026Nitrogen, ammonia total [as N], daily maximum15.5 mg/L≤ 10 mg/L55%
June 2026Solids, total suspended, daily average15.7 mg/L≤ 15 mg/L5%
July 2026E. coli, daily maximum613.1 CFU/100mL≤ 399 CFU/100mL54%
July 2026Nitrogen, ammonia total [as N], daily average109 lb/d≤ 16 lb/d581%
July 2026Nitrogen, ammonia total [as N], daily average25.34 mg/L≤ 2 mg/L1167%
July 2026Nitrogen, ammonia total [as N], daily maximum21.7 mg/L≤ 10 mg/L117%
August 2026E. coli, daily maximum1553.1 CFU/100mL≤ 399 CFU/100mL289%
August 2026Nitrogen, ammonia total [as N], daily average140 lb/d≤ 16 lb/d775%
August 2026Nitrogen, ammonia total [as N], daily average38.3 mg/L≤ 2 mg/L1815%
August 2026Nitrogen, ammonia total [as N], daily maximum40.9 mg/L≤ 10 mg/L309%
September 2026Nitrogen, ammonia total [as N], daily average169 lb/d≤ 16 lb/d956%
September 2026Nitrogen, ammonia total [as N], daily average44.725 mg/L≤ 2 mg/L2136%
September 2026Nitrogen, ammonia total [as N], daily maximum48.4 mg/L≤ 10 mg/L384%
September 2026Solids, total suspended, daily average156 lb/d≤ 119 lb/d31%
September 2026Solids, total suspended, daily average41.25 mg/L≤ 15 mg/L175%
September 2026Solids, total suspended, daily maximum44 mg/L≤ 40 mg/L10%

Limits in force (16)

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≤ 119 lb/dall year
Nitrogen, ammonia total [as N]daily average≤ 2 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/Lall year
Nitrogen, ammonia total [as N]daily average≤ 16 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .95 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all 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≤ 79 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/TX0026883 · MCP: https://passage-data.com/mcp