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File geodatabase containing sample results from Wisconsin DNR’s Private Well PFAS Study: “Prevalence and Source Tracing of PFAS in Shallow Groundwater Used for Drinking Water in Wisconsin”, Environmental Science & Technology.Per- and polyfluoroalkyl substances (PFAS) and other water quality parameter results from samples collected from 450 homes with shallow private wells throughout Wisconsin. The samples were analyzed for 44 PFAS, major ions, metals, total organic carbon, and indicators of human waste as well as agricultural influence. More information about the study can be found at https://dnr.wisconsin.gov/topic/Groundwater/PFASStudy.html.About the GIS DatasetZip file that contains a file geodatabase containing a relationship class between the polygon (PW_PFAS_Study_Well_Sections) feature which represents the section in which the private well sample was taken along with the table (PW_PFAS_Study_Sample_Data) with the sample results for each private well. In order to view this data in a web map, a feature layer is available here.