Drinking Water Data and Tools

SDWIS is the EPA’s system of record for Safe Drinking Water Act data; it includes data on public water system characteristics and compliance with SDWA regulations.

Users can access data from both the drinking water and clean water SRF programs through interactive reports, dashboards, and maps.

Users can easily search, summarize, and download the available analytical results from the fifth UCMR.

Water professionals can find important information related to protecting drinking water sources with the DWMAPS tool.

Users can view the geographic areas supplied with drinking water by community water systems.

Analyze various PFAS data from a variety of sources in a region, state, or community with the ECHO PFAS Analytic Tools.

Users can access ADWR data through reports; data which includes: aircraft inventory information, drinking water sample results, and violation information.

Users can easily search, summarize, and download analytical results from past cycles of the UCMR.

Analyze summary trends for key regulatory activities from EPA and implementing states, tribes, and territories with the ECHO EPA/State Drinking Water Dashboard.

Analyze public water system compliance with drinking water regulations with the ECHO Facility Search.

Water professionals will find a variety of tools that can help address disaster mitigation, preparedness, response, and recovery.

Users interested in data for other topics like air, land, and chemicals can find additional EPA data resources and understand how EPA uses these data.

Users can explore the fifth DWINSA results based on findings from 2011 through a comprehensive report. For the latest DWINSA results, see the seventh DWINSA.

Users can find summary data of EPA’s drinking water program’s performance measures and results.

Users can find information about the condition of their local waters based on data submitted to the EPA and other relevant data sets.

Users can view government-wide construction projects funded with grants and cooperative agreements authorized by the Infrastructure Investment and Jobs Act (includes multiple project areas, not just water-related projects).

The NCOD houses the Six-Year Review of national drinking water regulations data, the unregulated contaminant occurrence data, and the ambient and/or source water data.

Users can find a list of primacy agencies' publicly maintained drinking water databases, whose data may be more-up-to date and detailed than at EPA.

This interactive map allows users to view estimates for housing units using domestic wells for household water supply for 2020.

Users can view drinking water standards violation trends in community water systems through a series of interactive exhibits.

Users can explore the latest DWINSA results from the seventh DWINSA data through easy-to-use visualizations based on findings from 2021.

Users can explore the sixth DWINSA results data through easy-to-use visualizations based on findings from 2015. For the latest DWINSA results, see the seventh DWINSA.

Users can find drinking water sole source aquifer locations through an interactive map.

Users can find an inventory of injection control wells collected by the UIC program annually.

Users can find a comprehensive, national map of underground storage tank (UST) facilities and UST release data, including locations and attributes of active and closed UST facilities.

Users can learn more about the progress and accomplishments of the Voluntary School and Child Care Lead Testing and Reduction Grant Program.

Water professionals can find comprehensive information about contaminants to help them prepare for, respond to, or recover from drinking water contamination incidents.

Users can explore the WIFIA program's portfolio of closed and pending loans.

Water professionals will find a variety of tools that can help strengthen their water system infrastructure resiliency.

Water professionals will find a variety of tools that can help support drinking water system emergency response, treatment technologies, and more.

Water professionals can use this mobile application to find information and tools that may be needed while responding to emergency incidents.

Users can find the EPA's public catalog of available datasets on data.gov which provides an alternate way to find and access EPA datasets. This site also hosts datasets from across all the federal government which helps with data transparency and access.

Users can search EPA's database to find their annual CCR that includes information on source water, the levels of detected contaminants, and compliance with drinking water rules.

Users can explore EPA investments (across all programs, not just drinking water) made in the health, equity, and resilience of American communities through the BIL and IRA investments map.