St Mary Parish W&S #2 Bayou Vista

Water Quality Snapshot: St Mary Parish W&S #2 Bayou Vista

St Mary Parish W&S #2 Bayou Vista is a local-owned community water system that delivers drinking water to 5,379 residents in Patterson, Louisiana (St. Mary Parish County) through 1,906 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 2 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 2 monitoring and reporting violations are on file. The most recent violation on record dates to 2017.

The most frequently cited contaminant at this system is Revised Total Coliform Rule, recorded in 2 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 6.9 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Louisiana, EPA tracks 1,234 public water systems serving 5,316,532 people, with 115,060 cumulative violations and 62,164 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 93.2 violations. Statewide, 218 of 265 UCMR5-tested systems have reported PFAS detections (82.3%).

St Mary Parish W&S #2 Bayou Vista's 2 violations sit below the Louisiana average.

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