Watertown Water & Sewer Authority

Water Quality Snapshot: Watertown Water & Sewer Authority

Watertown Water & Sewer Authority is a local-owned community water system that delivers drinking water to 9,972 residents in Oakville, Connecticut (Litchfield County) through 3,735 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 144 total violations for this system , of which 40 (28%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 69 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Consumer Confidence Rule, recorded in 27 violations (Other). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across Connecticut, EPA tracks 2,332 public water systems serving 2,886,005 people, with 206,662 cumulative violations and 21,779 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 88.6 violations. Statewide, 40 of 63 UCMR5-tested systems have reported PFAS detections (63.5%).

Watertown Water & Sewer Authority's 144 violations sit above the Connecticut average.

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