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Waller County Rid No. 1

Sewage treatment plant, Waller, Texas. NPDES permit TX0127264, in force until Jun 9, 2027. Last 12 months: over a limit 14 times (last May 2026), 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (18 values)
Renewal application due
Dec 11, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
7 values over a limit, 0 required values missing, 0 of 12 reports late

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

All 14 values over a limit
Period endingParameterReportedLimitOver by
October 2025Solids, total suspended, daily average26.9 mg/L≤ 15 mg/L79%
November 2025BOD, carbonaceous [5 day, 20 C], daily average6.62 mg/L≤ 5 mg/L32%
November 2025Solids, total suspended, daily average23.5 mg/L≤ 15 mg/L57%
December 2025BOD, carbonaceous [5 day, 20 C], daily average6.7 mg/L≤ 5 mg/L34%
December 2025Nitrogen, ammonia total [as N], daily average7.06 mg/L≤ 2 mg/L253%
December 2025Nitrogen, ammonia total [as N], single grab sample19.8 mg/L≤ 15 mg/L32%
December 2025Solids, total suspended, daily average41.61 lb/d≤ 39 lb/d7%
December 2025Solids, total suspended, daily average64.8 mg/L≤ 15 mg/L332%
December 2025Solids, total suspended, single grab sample162 mg/L≤ 60 mg/L170%
January 2026Solids, total suspended, daily average17.4 mg/L≤ 15 mg/L16%
February 2026BOD, carbonaceous [5 day, 20 C], daily average6.18 mg/L≤ 5 mg/L24%
February 2026Solids, total suspended, daily average28.7 mg/L≤ 15 mg/L91%
May 2026E. coli, daily average260 CFU/100mL≤ 63 CFU/100mL313%
May 2026E. coli, single grab sample260 CFU/100mL≤ 200 CFU/100mL30%

Limits in force (18)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 6 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≤ 39 lb/dall year
Nitrogen, ammonia total [as N]daily average≤ 2 mg/Lall year
Nitrogen, ammonia total [as N]single grab sample≤ 15 mg/Lall year
Nitrogen, ammonia total [as N]daily average≤ 5.2 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .31 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≤ 63 CFU/100mLall year
E. colisingle grab sample≤ 200 CFU/100mLall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]single grab sample≤ 30 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 13 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/TX0127264 · MCP: https://passage-data.com/mcp