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Bells, City of

Sewage treatment plant, Bells, Texas. NPDES permit TX0053368 expired Feb 5, 2026; its limits still apply. Last 12 months: over a limit 5 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due: About 20 days after each period: form A monthly (15 values)
Last report on file: August 2026
Oct 2024 – Sep 2025: 12 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
February 2026	Flow, in conduit or thru treatment plant, daily average	.192 MGD	≤ .17 MGD	13%
March 2026	Flow, in conduit or thru treatment plant, daily average	.176 MGD	≤ .17 MGD	4%
March 2026	Oxygen, dissolved [DO], monthly minimum	3.7 mg/L	≥ 4 mg/L	8%
April 2026	Flow, in conduit or thru treatment plant, daily average	.176 MGD	≤ .17 MGD	4%
June 2026	Flow, in conduit or thru treatment plant, daily average	.226 MGD	≤ .17 MGD	33%

Limits in force (15)

Parameter	Statistic	Limit	Months
Oxygen, dissolved [DO]	monthly minimum	≥ 4 mg/L	all year
BOD, 5-day, 20 deg. C	daily average	≤ 10 mg/L	all year
BOD, 5-day, 20 deg. C	single grab sample	≤ 35 mg/L	all year
BOD, 5-day, 20 deg. C	daily average	≤ 14 lb/d	all year
pH	minimum	≥ 6 SU	all year
pH	maximum	≤ 9 SU	all year
Solids, total suspended	daily average	≤ 15 mg/L	all year
Solids, total suspended	single grab sample	≤ 60 mg/L	all year
Solids, total suspended	daily average	≤ 21 lb/d	all year
Flow, in conduit or thru treatment plant	daily average	≤ .17 MGD	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year
Chlorine, total residual	monthly minimum	≥ 1 mg/L	all year
Chlorine, total residual	monthly maximum	≤ 4 mg/L	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?

BOD, 5-day, 20 deg. C, single grab sample 35 mg/L — stricter than 79% of 310 other minor POTWs in Texas; 21% have the same limit
BOD, 5-day, 20 deg. C, daily average 10 mg/L — stricter than 77% of 340 other minor POTWs in Texas; 22% have the same limit
Solids, total suspended, daily average 15 mg/L — stricter than 35% of 939 other minor POTWs in Texas; 58% 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/TX0053368 · MCP: https://passage-data.com/mcp