New interactive PFAS data tool now available

A new interactive tool with information about per- and polyfluoroalkyl substances (PFAS) throughout Wisconsin, is now available. The PFAS Interactive Data Viewer combines publicly available information from multiple sources across the DNR’s website, into one tool to allow users to more easily explore what is known about PFAS in Wisconsin.

Available information in the PFAS Interactive Data Viewer includes locations with known contamination, PFAS-related fish and game consumption advisories, and waterbodies throughout Wisconsin, sampled during targeted or routine monitoring.

Data from the DNR’s recent voluntary municipal drinking water system sampling program is also included. Through this program, almost 150 municipal water systems worked with the DNR, to determine if PFAS are present in their drinking water.

These systems provide water to more than 1.7 million people. Under drinking water standards for PFOA and PFOS that went into effect in August, all drinking water systems will now be required to sample and monitor for PFAS, beginning as early as next month. Data from the required sampling will be incorporated into this tool, as it becomes available.

With easier access to information about the presence of PFAS, communities, policymakers and other stakeholders can make informed decisions to minimize exposure, develop plans for mitigation and access necessary resources. Wisconsin communities will benefit from hundreds of millions of dollars in Bipartisan Infrastructure Law (BIL) funding, to help local governments and utilities build, and upgrade, their infrastructure to best address PFAS.

To view the map, visit https://experience.arcgis.com/experience/ d4d131e169ba428384c5ac85c858bd0c.