Is HARRIS COUNTY MUD 11's water safe to drink?
HARRIS COUNTY MUD 11 has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 3,645 people get their water from it, across 1,215 connections.
HARRIS COUNTY MUD 11's record against the rest of the country
Out of 12,903 systems in this dataset, HARRIS COUNTY MUD 11 ranks 5,508th by violation burden (57th percentile) - 6 violations total, 3 health-baseds.
How HARRIS COUNTY MUD 11 compares within TX
Among the 1,633 TX systems in this dataset, the average is 6.7 health-based violations - HARRIS COUNTY MUD 11's 3 is at or below that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for HARRIS COUNTY MUD 11 is from 2025-01-07 (health-based: 2014-01-04). Last reported to EPA: 06/26/2026.
What kind of problem, specifically
HARRIS COUNTY MUD 11's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
- Other regulated metals - flagged from: Arsenic
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What this data is and is not
HARRIS COUNTY MUD 11's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. Between the utility's meter and HARRIS COUNTY MUD 11's customers' taps is household plumbing, invisible to a system-level record ranked 5,508th of 12,903 by violation count. The guide to what this data misses covers that gap.