Roslyn WD

Water Quality Snapshot: Roslyn WD

Roslyn WD is a public/private-owned community water system that delivers drinking water to 17,000 residents in Roslyn, New York (Nassau County) through 5,857 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 95 total violations for this system , of which 1 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 55 monitoring and reporting violations are on file. The most recent violation on record dates to 1996.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 2 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 2 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 5.6 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across New York, EPA tracks 8,098 public water systems serving 19,294,951 people, with 552,003 cumulative violations and 26,817 health-based violations on record. About 94% of systems in the state carry at least one violation, and state-wide the average per system is 68.2 violations. Statewide, 129 of 332 UCMR5-tested systems have reported PFAS detections (38.9%).

Roslyn WD's 95 violations sit above the New York average.

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