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Comal County Water Improvement District 3 Master District

Sewerage Systems, City Of New Braunfels, Texas. NPDES permit TX0141186, in force until Mar 18, 2027. Last 12 months: over a limit 25 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (19 values)
Renewal application due
Sep 19, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 3 reports late

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

All 25 values over a limit
Period endingParameterReportedLimitOver by
October 2025Phosphorus, total [as P], daily average1.76 mg/L≤ 1 mg/L76%
November 2025Nitrogen, ammonia total [as N], daily average≤ 5.1 mg/L≤ 3 mg/L70%
November 2025Nitrogen, ammonia total [as N], single grab sample20 mg/L≤ 15 mg/L33%
November 2025Phosphorus, total [as P], daily average3.39 mg/L≤ 1 mg/L239%
December 2025Nitrogen, ammonia total [as N], daily average12.7 mg/L≤ 3 mg/L323%
December 2025Nitrogen, ammonia total [as N], single grab sample29.5 mg/L≤ 15 mg/L97%
December 2025Phosphorus, total [as P], daily average3.23 mg/L≤ 1 mg/L223%
January 2026BOD, carbonaceous [5 day, 20 C], daily average14.3 mg/L≤ 10 mg/L43%
January 2026BOD, carbonaceous [5 day, 20 C], single grab sample47 mg/L≤ 35 mg/L34%
January 2026Nitrogen, ammonia total [as N], daily average18.3 mg/L≤ 3 mg/L510%
January 2026Nitrogen, ammonia total [as N], daily average≤ 1.6 lb/d≤ 1.5 lb/d7%
January 2026Nitrogen, ammonia total [as N], single grab sample29.8 mg/L≤ 15 mg/L99%
January 2026Phosphorus, total [as P], daily average1.3 lb/d≤ .5 lb/d160%
January 2026Phosphorus, total [as P], daily average3.6 mg/L≤ 1 mg/L260%
January 2026Phosphorus, total [as P], single grab sample14.3 mg/L≤ 6 mg/L138%
February 2026Phosphorus, total [as P], daily average.508 lb/d≤ .5 lb/d2%
February 2026Phosphorus, total [as P], daily average4 mg/L≤ 1 mg/L300%
March 2026Nitrogen, ammonia total [as N], daily average7.8 mg/L≤ 3 mg/L160%
March 2026Nitrogen, ammonia total [as N], single grab sample29 mg/L≤ 15 mg/L93%
March 2026Phosphorus, total [as P], daily average2.5 mg/L≤ 1 mg/L150%
April 2026Nitrogen, ammonia total [as N], daily average1.9 lb/d≤ 1.5 lb/d27%
April 2026Nitrogen, ammonia total [as N], daily average11.3 mg/L≤ 3 mg/L277%
April 2026Nitrogen, ammonia total [as N], single grab sample33 mg/L≤ 15 mg/L120%
April 2026Oxygen, dissolved [DO], monthly minimum3.4 mg/L≥ 4 mg/L15%
July 2026Flow, in conduit or thru treatment plant, daily average.067 MGD≤ .06 MGD12%

Limits in force (19)

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 suspendedsingle grab sample≤ 60 mg/Lall year
Solids, total suspendeddaily average≤ 7.51 lb/dall year
Nitrogen, ammonia total [as N]daily average≤ 3 mg/Lall year
Nitrogen, ammonia total [as N]single grab sample≤ 15 mg/Lall year
Nitrogen, ammonia total [as N]daily average≤ 1.5 lb/dall year
Phosphorus, total [as P]daily average≤ 1 mg/Lall year
Phosphorus, total [as P]single grab sample≤ 6 mg/Lall year
Phosphorus, total [as P]daily average≤ .5 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .06 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≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]single grab sample≤ 35 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 5 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/TX0141186 · MCP: https://passage-data.com/mcp