Water quality data for 9 public water systems serving New Haven County, Connecticut — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.
Some systems have elevated lead levels or active violations. Check your specific city below.
New Haven County: 28 communities across 9 water systems. 100.0% have no open violations.
New Haven County is served by 9 water systems covering 28 communities. No community here has an open violation on record.
Of the communities reporting lead results, 6 recorded a detection, with a median of 0.90 ppb — 6% of the federal action level. 22 reported none detected, which means below the laboratory limit rather than an absence of lead.
21 of 28 communities have PFAS above the limits EPA set in 2024, measured as a running annual average at each sampling point. State inspectors recorded significant deficiencies at 25 of them.