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Undine Texas Environmental LLC

Sewerage Systems, Parker County, Texas. NPDES permit TX0122271, in force until Apr 2, 2031. Last 12 months: over a limit 17 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (19 values), form Q quarterly
Last report on file
August 2026
Oct 2024 – Sep 2025
14 values over a limit, 4 required values missing, 3 of 16 reports late

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

All 17 values over a limit
Period endingParameterReportedLimitOver by
January 2026Nitrogen, ammonia total [as N], daily average1.11 lb/d≤ .95 lb/d17%
January 2026Nitrogen, ammonia total [as N], daily average8.14 mg/L≤ 3 mg/L171%
January 2026Nitrogen, ammonia total [as N], single grab sample22.4 mg/L≤ 15 mg/L49%
January 2026Solids, total suspended, daily average17 mg/L≤ 15 mg/L13%
February 2026Nitrogen, ammonia total [as N], daily average1.83 lb/d≤ .95 lb/d93%
February 2026Nitrogen, ammonia total [as N], daily average23.4 mg/L≤ 3 mg/L680%
February 2026Nitrogen, ammonia total [as N], single grab sample27.2 mg/L≤ 15 mg/L81%
February 2026Solids, total suspended, daily average28.25 mg/L≤ 15 mg/L88%
February 2026Solids, total suspended, single grab sample97 mg/L≤ 60 mg/L62%
March 2026Nitrogen, ammonia total [as N], daily average1.63 lb/d≤ .95 lb/d72%
March 2026Nitrogen, ammonia total [as N], daily average18.78 mg/L≤ 3 mg/L526%
March 2026Nitrogen, ammonia total [as N], single grab sample29.2 mg/L≤ 15 mg/L95%
April 2026Nitrogen, ammonia total [as N], daily average4.97 mg/L≤ 3 mg/L66%
May 2026Solids, total suspended, daily average15.4 mg/L≤ 15 mg/L3%
June 2026Nitrogen, ammonia total [as N], daily average5.24 mg/L≤ 3 mg/L75%
July 2026Nitrogen, ammonia total [as N], daily average11.74 mg/L≤ 3 mg/L291%
July 2026Nitrogen, ammonia total [as N], single grab sample19.7 mg/L≤ 15 mg/L31%

Limits in force (21)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 5 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≤ 10 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≤ 2 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≤ .67 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .08 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≤ 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≤ 6.7 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/TX0122271 · MCP: https://passage-data.com/mcp