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13535 Sralla RD LLC

Mobile Home Site Operators, Harris County, Texas. NPDES permit TX0126381, in force until Dec 15, 2028. Last 12 months: over a limit 6 times (last July 2026), 3 of 14 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (16 values), form Q quarterly (2 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
10 values over a limit, 0 required values missing, 3 of 16 reports late

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

Period endingParameterReportedLimitOver by
February 2026Oxygen, dissolved [DO], monthly minimum2.5 mg/L≥ 4 mg/L38%
March 2026BOD, carbonaceous [5 day, 20 C], daily average12 mg/L≤ 10 mg/L20%
March 2026Nitrogen, ammonia total [as N], daily average8.6 mg/L≤ 3 mg/L187%
March 2026Nitrogen, ammonia total [as N], single grab sample17 mg/L≤ 15 mg/L13%
May 2026BOD, carbonaceous [5 day, 20 C], daily average16.8 mg/L≤ 10 mg/L68%
July 2026Oxygen, dissolved [DO], monthly minimum3.6 mg/L≥ 4 mg/L10%

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 suspendedsingle grab sample≤ 60 mg/Lall year
Solids, total suspendeddaily average≤ 2.5 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≤ .5 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .02 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≤ 1.7 lb/dall year

How strict are these limits?

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

Same industry: the 78 Real Estate permits in Texas.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TX0126381 · MCP: https://passage-data.com/mcp