NORTHWEST HARRIS COUNTY MUD 20: EPA violation history, explained

NORTHWEST HARRIS COUNTY MUD 20's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. It serves 3,429 people through 1,143 service connections.

How this compares nationally

2 total violations and 0 health-based ones put NORTHWEST HARRIS COUNTY MUD 20 at the 6th percentile nationally for violation burden, rank 12,122 of 12,903.

Against the TX average

Among the 1,633 TX systems in this dataset, the average is 6.7 health-based violations - NORTHWEST HARRIS COUNTY MUD 20's 0 is at or below that. The filter guide explains what a violation like this actually calls for.

Most recent violation on record

NORTHWEST HARRIS COUNTY MUD 20's most recent violation on record is dated 2005-01-06. Last reported to EPA: 06/26/2026.

What NORTHWEST HARRIS COUNTY MUD 20's record does not cover

Everything on this page is NORTHWEST HARRIS COUNTY MUD 20's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 2 logged violations can see. The guide to what this data misses covers that gap.