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Deport, City of

Sewage treatment plant, City Of Deport, Texas. NPDES permit TX0136930 expired Sep 23, 2026; its limits still apply. Last 12 months: over a limit 11 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due: About 20 days after each period: form A monthly (12 values)
Last report on file: September 2026
Oct 2024 – Sep 2025: 8 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period ending	Parameter	Reported	Limit	Over by
December 2025	E. coli, daily average	265 CFU/100mL	≤ 126 CFU/100mL	110%
December 2025	E. coli, single grab sample	411 CFU/100mL	≤ 399 CFU/100mL	3%
January 2026	E. coli, daily average	273 CFU/100mL	≤ 126 CFU/100mL	117%
January 2026	E. coli, single grab sample	435 CFU/100mL	≤ 399 CFU/100mL	9%
March 2026	E. coli, daily average	129 CFU/100mL	≤ 126 CFU/100mL	2%
May 2026	E. coli, daily average	319 CFU/100mL	≤ 126 CFU/100mL	153%
May 2026	E. coli, single grab sample	613 CFU/100mL	≤ 399 CFU/100mL	54%
June 2026	E. coli, daily average	897 CFU/100mL	≤ 126 CFU/100mL	612%
June 2026	E. coli, single grab sample	1730 CFU/100mL	≤ 399 CFU/100mL	334%
September 2026	E. coli, daily average	308 CFU/100mL	≤ 126 CFU/100mL	144%
September 2026	E. coli, single grab sample	488 CFU/100mL	≤ 399 CFU/100mL	22%

Limits in force (12)

Parameter	Statistic	Limit	Months
Oxygen, dissolved [DO]	monthly minimum	≥ 4 mg/L	all year
BOD, 5-day, 20 deg. C	daily average	≤ 30 mg/L	all year
BOD, 5-day, 20 deg. C	single grab sample	≤ 100 mg/L	all year
BOD, 5-day, 20 deg. C	daily average	≤ 46 lb/d	all year
pH	minimum	≥ 6 SU	all year
pH	maximum	≤ 9 SU	all year
Solids, total suspended	daily average	≤ 90 mg/L	all year
Solids, total suspended	daily average	≤ 137 lb/d	all year
Flow, in conduit or thru treatment plant	daily average	≤ .183 MGD	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year
E. coli	daily average	≤ 126 CFU/100mL	all year
E. coli	single grab sample	≤ 399 CFU/100mL	all year

How strict are these limits?

Oxygen, dissolved [DO], monthly minimum at least 4 mg/L — stricter than 15% of 905 other minor POTWs in Texas; 59% 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/TX0136930 · MCP: https://passage-data.com/mcp