Williamson County Wsid 3

Water Quality Snapshot: Williamson County Wsid 3

Williamson County Wsid 3 is a local-owned community water system that delivers drinking water to 8,265 residents in Austin, Texas (Williamson County) through 2,755 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 33 total violations for this system , of which 8 (24%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 21 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Revised Total Coliform Rule, recorded in 20 violations (MON). Under EPA's UCMR5 PFAS monitoring program, 3 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 5 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Texas, EPA tracks 7,351 public water systems serving 33,253,313 people, with 746,210 cumulative violations and 162,945 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 101.5 violations. Statewide, 1,068 of 1,147 UCMR5-tested systems have reported PFAS detections (93.1%).

Williamson County Wsid 3's 33 violations sit below the Texas average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.