Lead Levels in Residential Water Tests, 2014-2024

Lead is a toxic metal and no amount of lead in drinking water is safe. Below is a map of 43,000+ tap water samples collected from resident-requested lead testing kits over the last decade.

35% of these home test kits had at least one tap draw containing lead. Zoom over zip code areas to see more about the samples collected.

(Please use a modern browser to see the interactive version of this visualization)

Tap water from NYC resident faucets is not tested by the city unless a kit is requested by the tenant. As sample tests are discretionary, water sample data may not be comprehensively representative of each zip code.

Chart: Lizzie Walsh / THE CITYSource: NYC OpenData