CITY OF ROUND ROCK: EPA violation history, explained
CITY OF ROUND ROCK has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 130,662, over 37,492 connections.
How this compares nationally
6 total violations and 3 health-based ones put CITY OF ROUND ROCK at the 58th percentile nationally for violation burden, rank 5,464 of 12,903.
How CITY OF ROUND ROCK compares within TX
CITY OF ROUND ROCK's 3 health-based violations sit within the TX average of 6.7, across 1,633 systems statewide. 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 CITY OF ROUND ROCK is from 2011-01-07 (health-based: 2004-01-12). Last reported to EPA: 06/26/2026.
What kind of problem, specifically
CITY OF ROUND ROCK'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: Surface Water Treatment Rule
- Disinfection byproducts - flagged from: Total Haloacetic Acids (HAA5)
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
This is what CITY OF ROUND ROCK 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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 6 logged violations can see. The guide to what this data misses covers that gap.