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Redwater, City of

Sewage treatment plant, Redwater, Texas. NPDES permit TX0056251 expired Feb 26, 2024; its limits still apply. Last 12 months: over a limit 14 times (last June 2026), 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (18 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
23 values over a limit, 20 required values missing, 4 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 average20 mg/L≤ 15 mg/L33%
November 2025Solids, total suspended, daily average25 mg/L≤ 15 mg/L67%
December 2025BOD, 5-day, 20 deg. C, daily average10.7 mg/L≤ 10 mg/L7%
December 2025Solids, total suspended, daily average24.6 mg/L≤ 15 mg/L64%
January 2026Solids, total suspended, daily average24.2 lb/d≤ 18 lb/d34%
January 2026Solids, total suspended, daily average34 mg/L≤ 15 mg/L127%
February 2026Solids, total suspended, daily average18.7 mg/L≤ 15 mg/L25%
February 2026Solids, total suspended, daily average19 lb/d≤ 18 lb/d6%
March 2026BOD, 5-day, 20 deg. C, daily average13.8 mg/L≤ 10 mg/L38%
March 2026Solids, total suspended, daily average19.2 mg/L≤ 15 mg/L28%
April 2026Solids, total suspended, daily average22.3 mg/L≤ 15 mg/L49%
May 2026Solids, total suspended, daily average23 mg/L≤ 15 mg/L53%
June 2026Solids, total suspended, daily average23.2 mg/L≤ 15 mg/L55%
June 2026Solids, total suspended, daily average37.5 lb/d≤ 18 lb/d108%

Limits in force (18)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 4 mg/Lall year
BOD, 5-day, 20 deg. Cdaily average≤ 10 mg/Lall year
BOD, 5-day, 20 deg. Csingle grab sample≤ 35 mg/Lall year
BOD, 5-day, 20 deg. Cdaily average≤ 12 lb/dall 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≤ 18 lb/dall year
Nitrogen, ammonia total [as N]daily averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]single grab samplereport only (mg/L)all year
Nitrogen, ammonia total [as N]daily averagereport only (lb/d)all year
Flow, in conduit or thru treatment plantdaily average≤ .14 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

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/TX0056251 · MCP: https://passage-data.com/mcp