DrinkingWaterCheck

Is JOHNSON COUNTY SUD's water safe to drink?

JOHNSON COUNTY SUD has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 65,517, over 22,824 connections.

Ranked against every other system in this dataset

JOHNSON COUNTY SUD has 23 violations on record in total, 2 of thems health-based - ranking it 6,164th of 12,903 systems by violation count, the 52th percentile nationally.

Against the TX average

TX's 1,633 covered systems average 6.7 health-based violations each; JOHNSON COUNTY SUD carries 2, not more than typical for the state. The filter guide explains what a violation like this actually calls for.

Most recent violation on record

JOHNSON COUNTY SUD's most recent violation on record is dated 2021-01-02, with the most recent health-based one dated 1993-01-10. Last reported to EPA: 06/26/2026.

The concern categories on record

JOHNSON COUNTY SUD'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:

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 JOHNSON COUNTY SUD's record does not cover

JOHNSON COUNTY SUD'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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 23 logged violations can see. The guide to what this data misses covers that gap.