All Americans deserve access to safe, reliable, and affordable drinking water. But making that access into a national reality means untangling a complex web of interdependent factors—including crucial, but often fragmented, water data.

To address these issues, the Environmental Policy Innovation Center (EPIC) is launching a new web-based platform: the National Drinking Water Explorer – Dataset & Tool (Version 1.0). Covering the 44,000+ Community Water Systems across the nation, this data product harmonizes information across sources and scales—integrating nearly 30 state and national datasets and more than 100 variables—so policymakers, advocates, researchers, utilities, and communities can use drinking water data to improve environmental and public health outcomes.