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Austwell, City of

Sewage treatment plant, Austwell, Texas. NPDES permit TX0048038 expired Dec 8, 2025; its limits still apply. Last 12 months: over a limit 3 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due: About 20 days after each period: form A monthly (11 values), form Q quarterly (2 values)
Last report on file: September 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 16 reports late

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

Period ending	Parameter	Reported	Limit	Over by
May 2026	Solids, total suspended, daily average	20.05 mg/L	≤ 20 mg/L	0%
June 2026	Enterococci, daily average	122.2 CFU/100mL	≤ 35 CFU/100mL	249%
June 2026	Enterococci, single grab sample	122.2 CFU/100mL	≤ 104 CFU/100mL	18%

Limits in force (13)

Parameter	Statistic	Limit	Months
Oxygen, dissolved [DO]	monthly minimum	≥ 2 mg/L	all year
BOD, 5-day, 20 deg. C	daily average	≤ 20 mg/L	all year
BOD, 5-day, 20 deg. C	single grab sample	≤ 65 mg/L	all year
BOD, 5-day, 20 deg. C	daily average	≤ 10 lb/d	all year
pH	minimum	≥ 6 SU	all year
pH	maximum	≤ 9 SU	all year
Solids, total suspended	daily average	≤ 20 mg/L	all year
Solids, total suspended	single grab sample	≤ 65 mg/L	all year
Solids, total suspended	daily average	≤ 10 lb/d	all year
Chlorine, total residual	monthly minimum	≥ 1 mg/L	all year
Chlorine, total residual	monthly maximum	≤ 4 mg/L	all year
Enterococci	daily average	≤ 35 CFU/100mL	all year
Enterococci	single grab sample	≤ 104 CFU/100mL	all year

How strict are these limits?

BOD, 5-day, 20 deg. C, single grab sample 65 mg/L — stricter than 34% of 310 other minor POTWs in Texas; 45% have the same limit
BOD, 5-day, 20 deg. C, daily average 20 mg/L — stricter than 33% of 340 other minor POTWs in Texas; 44% have the same limit
Solids, total suspended, daily average 20 mg/L — stricter than 17% of 939 other minor POTWs in Texas; 18% have the same limit

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/TX0048038 · MCP: https://passage-data.com/mcp