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MONTGOMERY COUNTY MUNICIPAL UTILITY DISTRICT 123

NPDES permit TX0129585 · EPA data of Oct 12, 2026

What it is

Industrial or other facility

Where

Texas · map

Last 12 months

No reports in EPA's file

Permit

In force until Feb 9, 2028

What brings you here? I run this facility · I'm looking into it · I handle several facilities

Check this month's numbers with the button below before you file; Watch the permit for an email before each report is due.

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Permit summary (.xlsx)

EPA ECHOFacility reportDMR history

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

EPA has no reports on file for this permit in this window. That may be EPA's gap, not the facility's.

Reporting

Reports due

About 20 days after each period ends

How strict are these limits?

Compared with the same limit in similar permits.

• E. coli, daily average 63 CFU/100mL — stricter than 69% of 488 other minor industrial and other permits in Texas; 30% have the same limit
• E. coli, single grab sample 200 CFU/100mL — stricter than 68% of 442 other minor industrial and other permits in Texas; 31% have the same limit
• Solids, total suspended, daily average 15 mg/L — stricter than 35% of 777 other minor industrial and other permits in Texas; 60% have the same limit
• Solids, total suspended, single grab sample 60 mg/L — stricter than 15% of 552 other minor industrial and other permits in Texas; 80% have the same limit
• Oxygen, dissolved [DO], monthly minimum at least 4 mg/L — stricter than 12% of 626 other minor industrial and other permits in Texas; 69% have the same limit
• Nitrogen, ammonia total [as N], daily average 3 mg/L — stricter than 3% of 410 other minor industrial and other permits in Texas; 77% have the same limit
• BOD, carbonaceous [5 day, 20 C], daily average 10 mg/L — stricter than 3% of 401 other minor industrial and other permits in Texas; 87% have the same limit
• BOD, carbonaceous [5 day, 20 C], single grab sample 35 mg/L — stricter than 1% of 358 other minor industrial and other permits in Texas; 89% have the same limit
• pH, minimum at least 6 SU — stricter than 0% of 1035 other minor industrial and other permits in Texas; 96% have the same limit
• pH, maximum 9 SU — stricter than 0% of 1035 other minor industrial and other permits in Texas; 99% have the same limit
• Nitrogen, ammonia total [as N], single grab sample 15 mg/L — stricter than 0% of 356 other minor industrial and other permits in Texas; 100% have the same limit
• Chlorine, total residual, monthly minimum at least 1 mg/L — stricter than 0% of 609 other minor industrial and other permits in Texas; 100% have the same limit
• Chlorine, total residual, monthly maximum 4 mg/L — stricter than 0% of 596 other minor industrial and other permits in Texas; 100% have the same limit

Limits in force (18)

Cited limits by parameter: Texas's rules and the federal ones, each row cited to the rule it comes from.

For programs and AI agents: this permit as JSON at /api/v1/permits/TX0129585; or add https://passage-data.com/mcp as a remote MCP server (tool get_permit; find_limits for cited state and federal limits). Free, no key. llms.txt

From EPA's ECHO data, not the permit document itself: your permit is the final word. All states