S1 Fig -

<p>Estimated number of homes served by private wells by census tract (top) compared with population density (middle) for the state of Pennsylvania circa 2020 including overlay comparison (bottom) (greyed out sections on the maps are 100% served by public water). Maps generated with <a href="https://www2.census.gov/geo/pvs/tiger2010st/42_Pennsylvania/42/tl_2010_42_tract10.zip" target="_blank">https://www2.census.gov/geo/pvs/tiger2010st/42_Pennsylvania/42/tl_2010_42_tract10.zip</a>, <a href="https://www2.census.gov/geo/pdfs/maps-data/data/tiger/tgrshp2010/TGRSHP10SF1.pdf" target="_blank">https://www2.census.gov/geo/pdfs/maps-data/data/tiger/tgrshp2010/TGRSHP10SF1.pdf</a>, USA Major Cities—(arcgis.com).</p> <p>(DOCX)</p>