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This data release provides total and aqueous arsenic (As) determinations and associated field readings collected from groundwater sampled from 254 newly constructed private residential wells between 2014 and 2016. The study focuses on three regions of Minnesota that differ geologically: south-central (herein called central), northwest, and northeast. These study regions were chosen due to their prevalent elevated As concentrations in drinking water. Each of the 254 wells were sampled in three rounds by the Minnesota Department of Health (MDH). The timing of the three sampling rounds was (1) immediately or shortly after well construction (round 1); (2) 3-6 months after initial sample collection (round 2); and (3)...


map background search result map search result map USGS Topo Map Vector Data (Vector) 12186 Diamond Bluff West, Wisconsin 20220430 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 12186 Diamond Bluff West, Wisconsin 20220430 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 36367 Prescott, Wisconsin 20220430 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 36367 Prescott, Wisconsin 20220430 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 7591 Castle Rock, Minnesota 20220507 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 7591 Castle Rock, Minnesota 20220507 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 9356 Coates, Minnesota 20220506 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 15033 Farmington, Minnesota 20220507 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 19604 Hastings, Minnesota 20220501 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 25936 Little Chicago, Minnesota 20220507 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 29195 Miesville, Minnesota 20220501 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 32521 Northfield, Minnesota 20220507 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 39375 Saint Paul East, Minnesota 20220501 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 39378 Saint Paul West, Minnesota 20220501 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 39473 Salix, Iowa 20220429 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 39473 Salix, Iowa 20220429 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 41493 Sioux City South, Iowa 20220429 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 46789 Vermillion, Minnesota 20220525 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 46789 Vermillion, Minnesota 20220525 for 7.5 x 7.5 minute Shapefile Arsenic and field parameter data USGS Topo Map Vector Data (Vector) 12186 Diamond Bluff West, Wisconsin 20220430 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 12186 Diamond Bluff West, Wisconsin 20220430 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 36367 Prescott, Wisconsin 20220430 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 36367 Prescott, Wisconsin 20220430 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 7591 Castle Rock, Minnesota 20220507 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 7591 Castle Rock, Minnesota 20220507 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 9356 Coates, Minnesota 20220506 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 15033 Farmington, Minnesota 20220507 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 19604 Hastings, Minnesota 20220501 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 25936 Little Chicago, Minnesota 20220507 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 29195 Miesville, Minnesota 20220501 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 32521 Northfield, Minnesota 20220507 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 39375 Saint Paul East, Minnesota 20220501 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 39378 Saint Paul West, Minnesota 20220501 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 39473 Salix, Iowa 20220429 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 39473 Salix, Iowa 20220429 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 41493 Sioux City South, Iowa 20220429 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 46789 Vermillion, Minnesota 20220525 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 46789 Vermillion, Minnesota 20220525 for 7.5 x 7.5 minute Shapefile Arsenic and field parameter data