HARRIS COUNTY MUD 501: EPA violation history, explained

HARRIS COUNTY MUD 501's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. It serves 4,740 people through 1,580 service connections.

How this compares nationally

Out of 12,903 systems in this dataset, HARRIS COUNTY MUD 501 ranks 12,446th by violation burden (4th percentile) - 1 violation total, 0 health-baseds.

How HARRIS COUNTY MUD 501 compares within TX

Among the 1,633 TX systems in this dataset, the average is 6.7 health-based violations - HARRIS COUNTY MUD 501's 0 is at or below that. The filter guide explains what a violation like this actually calls for.

Most recent violation on record

The last violation EPA has on record for HARRIS COUNTY MUD 501 is from 2015-06-12. Last reported to EPA: 06/26/2026.

What this data is and is not

This is what HARRIS COUNTY MUD 501 reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Between the utility's meter and HARRIS COUNTY MUD 501's customers' taps is household plumbing, invisible to a system-level record ranked 12,446th of 12,903 by violation count. The guide to what this data misses covers that gap.