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Malone, of City

Sewage treatment plant, Malone, Texas. NPDES permit TX0020303, in force until Feb 28, 2027. Last 12 months: over a limit 11 times (last July 2026), 2 required values missing, 6 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 20 days after each period: form A monthly (13 values), form Q quarterly
Renewal application due: Sep 1, 2026 · 180 days before expiry; your permit may set another date
Last report on file: September 2026
Oct 2024 – Sep 2025: 4 values over a limit, 8 required values missing, 13 of 16 reports late

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

Period ending	Parameter	Reported	Limit	Over by
May 2026	BOD, 5-day, 20 deg. C, daily average	21.33 mg/L	≤ 20 mg/L	7%
May 2026	Solids, total suspended, daily average	24 mg/L	≤ 20 mg/L	20%
June 2026	BOD, 5-day, 20 deg. C, daily average	32.5 mg/L	≤ 20 mg/L	63%
June 2026	Solids, total suspended, daily average	12.05 lb/d	≤ 8.3 lb/d	45%
June 2026	Solids, total suspended, daily average	49.5 mg/L	≤ 20 mg/L	148%
June 2026	Solids, total suspended, single grab sample	75 mg/L	≤ 65 mg/L	15%
July 2026	BOD, 5-day, 20 deg. C, daily average	46 mg/L	≤ 20 mg/L	130%
July 2026	Oxygen, dissolved [DO], monthly minimum	1.6 mg/L	≥ 2 mg/L	20%
July 2026	Solids, total suspended, daily average	54 mg/L	≤ 20 mg/L	170%
July 2026	Solids, total suspended, single grab sample	69 mg/L	≤ 65 mg/L	6%
July 2026	pH, minimum	4.4 SU	≥ 6 SU	—

Limits in force (15)

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	≤ 8.3 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	≤ 8.3 lb/d	all year
Flow, in conduit or thru treatment plant	daily average	≤ .05 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 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/TX0020303 · MCP: https://passage-data.com/mcp