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Safe Drinking Water Information System
The Safe Drinking Water Act requires states to report drinking water information periodically to EPA. This information is maintained in a federal database, the Safe Drinking Water Information System (SDWIS) Fed Data Warehouse. * Basic Information * Get Data/Tool * Learn More
The SDWIS Fed Data Warehouse contains the following for each public water system: * basic information, * violation information * and enforcements information
The SDWIS Fed Reporting Services system offers the capability to query the Safe Drinking Water Information System (SDWIS) Fed Data Warehouse via report filters and various reporting options. * SDWIS Fed Reporting Services System
To learn more about SDWIS please visit the following page: * SDWIS Federal Reporting Services
Water Data and Tools
Open Sidenav Menu Close Sidenav Menu Contact Us About Water Data and Tools Contact Us About Water Data and Tools to ask a question, provide feedback, or report a problem. Last updated on October 7, 2025 Welcome! Please share your feedback on how we can make www.epa.gov work better for you. A red asterisk (*) indicates a required field.
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