Environmental and Quality-Control Data Collected by the USGS National Water-Quality Assessment Project for Hormones and Pharmaceuticals in Groundwater Used as a Source of Drinking Water Across the United States, 2013-15

This data set includes results for hormone and pharmaceutical compounds analyzed in environmental and quality-control samples collected by the USGS National Water-Quality Assessment Project during 2013 through 2015 for a study of groundwater resources used for drinking-water supply across the United States. This data release includes: Table 1. Site information and ancillary data (including principal aquifer, rock type, well depth, groundwater age information, aridity information, and land-use information) for groundwater sites sampled for hormones and pharmaceuticals by the National Water-Quality Assessment Project, 2013-15. Table 2. Hormone and pharmaceutical results for groundwater samples collected by the National Water-Quality Assessment Project, 2013-15. Table 3. Hormone and pharmaceutical results for field related blank samples of known blank type collected by the National Water-Quality Assessment Project for groundwater, 2013-15. Table 4. Hormone and pharmaceutical results for laboratory matrix spikes and associated environmental samples collected by the National Water-Quality Assessment Project for groundwater, 2013-15. Table 5. Hormone and pharmaceutical results for replicate samples and associated environmental samples collected by the National Water-Quality Assessment Project for groundwater, 2013-15.

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  "010:12"
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  "geospatial"
]