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Bistone Municipal Water Supply

Water Supply, Mexia, Texas. NPDES permit TX0091758, in force until Jan 21, 2031. Last 12 months: over a limit 2 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due: About 20 days after each period: form A monthly (7 values)
Last report on file: August 2026
Oct 2024 – Sep 2025: 1 value over a limit, 0 required values missing, 2 of 12 reports late

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

Period ending	Parameter	Reported	Limit
March 2026	pH, maximum	9.2 SU	≤ 9 SU
August 2026	pH, maximum	9.1 SU	≤ 9 SU

Limits in force (7)

Parameter	Statistic	Limit	Months
pH	minimum	≥ 6 SU	all year
pH	maximum	≤ 9 SU	all year
Solids, total suspended	daily average	≤ 25 mg/L	all year
Solids, total suspended	daily maximum	≤ 45 mg/L	all year
Solids, total suspended	daily average	≤ 16 lb/d	all year
Flow, in conduit or thru treatment plant	daily average	≤ .075 MGD	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year

How strict are these limits?

Solids, total suspended, daily maximum 45 mg/L — stricter than 43% of 244 other minor industrial and other permits in Texas; 36% have the same limit
Solids, total suspended, daily average 25 mg/L — stricter than 12% of 777 other minor industrial and other permits in Texas; 7% have the same limit

Cited limits by parameter: Texas's rules and the federal ones.

Same industry: the 115 Water Supply permits in Texas.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TX0091758 · MCP: https://passage-data.com/mcp