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West Jefferson County MWD

Sewage treatment plant, Hamshire, Texas. NPDES permit TX0116441, in force until Nov 2, 2028. Last 12 months: over a limit 19 times (last September 2026), 4 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (15 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
11 values over a limit, 0 required values missing, 3 of 12 reports late

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

All 19 values over a limit
Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], daily average11.4 mg/L≤ 8 mg/L43%
October 2025Nitrogen, ammonia total [as N], single grab sample16 mg/L≤ 15 mg/L7%
October 2025Oxygen, dissolved [DO], monthly minimum1.4 mg/L≥ 4 mg/L65%
November 2025Nitrogen, ammonia total [as N], daily average15.8 mg/L≤ 8 mg/L98%
November 2025Nitrogen, ammonia total [as N], single grab sample17.2 mg/L≤ 15 mg/L15%
December 2025E. coli, daily average163 CFU/100mL≤ 126 CFU/100mL29%
December 2025E. coli, single grab sample2420 CFU/100mL≤ 399 CFU/100mL507%
December 2025Nitrogen, ammonia total [as N], daily average10.2 mg/L≤ 8 mg/L28%
January 2026E. coli, daily average143 CFU/100mL≤ 126 CFU/100mL13%
January 2026Nitrogen, ammonia total [as N], daily average12.1 mg/L≤ 8 mg/L51%
January 2026Nitrogen, ammonia total [as N], single grab sample15.5 mg/L≤ 15 mg/L3%
February 2026E. coli, daily average443 CFU/100mL≤ 126 CFU/100mL252%
February 2026E. coli, single grab sample866 CFU/100mL≤ 399 CFU/100mL117%
February 2026Nitrogen, ammonia total [as N], daily average8.3 mg/L≤ 8 mg/L4%
March 2026E. coli, daily average217 CFU/100mL≤ 126 CFU/100mL72%
March 2026Nitrogen, ammonia total [as N], daily average8.3 mg/L≤ 8 mg/L4%
April 2026Oxygen, dissolved [DO], monthly minimum3.6 mg/L≥ 4 mg/L10%
June 2026Nitrogen, ammonia total [as N], daily average8.35 mg/L≤ 8 mg/L4%
September 2026Oxygen, dissolved [DO], monthly minimum3 mg/L≥ 4 mg/L25%

Limits in force (15)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 4 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendeddaily average≤ 90 mg/Lall year
Solids, total suspendeddaily average≤ 42 lb/dall year
Nitrogen, ammonia total [as N]daily average≤ 8 mg/Lall year
Nitrogen, ammonia total [as N]single grab sample≤ 15 mg/Lall year
Nitrogen, ammonia total [as N]daily average≤ 3.7 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .056 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≤ 30 mg/Lall year
BOD, carbonaceous [5 day, 20 C]single grab sample≤ 100 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 14 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/TX0116441 · MCP: https://passage-data.com/mcp