What's in NORTHWEST HARRIS COUNTY MUD 9's water?

NORTHWEST HARRIS COUNTY MUD 9's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 7,848 people get their water from it, across 2,616 connections.

How this compares nationally

NORTHWEST HARRIS COUNTY MUD 9 has 3 violations on record in total, 0 of thems health-based - ranking it 11,663th of 12,903 systems by violation count, the 10th percentile nationally.

How NORTHWEST HARRIS COUNTY MUD 9 compares within TX

TX's 1,633 covered systems average 6.7 health-based violations each; NORTHWEST HARRIS COUNTY MUD 9 carries 0, not more than typical for the state. 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 NORTHWEST HARRIS COUNTY MUD 9 is from 2026-01-04. Last reported to EPA: 06/26/2026.

What this data is and is not

NORTHWEST HARRIS COUNTY MUD 9'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. This record - 0 health-based violations on file for NORTHWEST HARRIS COUNTY MUD 9 - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.