From 2013 to 2018, the U.S. Geological Survey, in cooperation with the Town of Enfield and the Tompkins County Planning Department, studied the unconsolidated aquifers in the Enfield Creek Valley in the town of Enfield, Tompkins County, New York. The objective of this study was to characterize the hydrogeology and water quality of the unconsolidated aquifers in the Enfield Creek valley and produce a summary report of the findings. The spatial extent and hydrogeologic framework of these unconsolidated aquifers were delineated using existing data, including soils maps, well records, geologic logs, topographic data, and published reports. An interactive ArcGIS Online web map of the geospatial datasets is available here: https://usgs.maps.arcgis.com/home/webmap/viewer.html?webmap=b53518b0b6b74694932605c4578c00c3. These geospatial datasets support U.S. Geological Survey Scientific Investigations Report 2019-5136, "Geohydrology and Water Quality of the Unconsolidated Aquifers in the Enfield Creek Valley, Town of Enfield, Tompkins County, New York."

This data set represents the extent of the Valley and Ridge aquifers in the states of New York, New Jersey, Pennsylvania, Maryland, Virginia, West Virginia, Tennesse, Georgia, and Alabama.

From 2013 to 2018, the U.S. Geological Survey, in cooperation with the Town of Enfield and the Tompkins County Planning Department, collected and compiled well records (306 in total) within and outside the unconsolidated aquifer in the Town of Enfield, New York. Sources of well data included previous USGS groundwater studies, the USGS National Water Information System, and well records obtained from the New York State Department of Environmental Conservation Water Well Contractor Program.

This child item dataset contains a shapefile that delineates areas of known or inferred confined aquifers within the Owasco Inlet watershed.

This dataset contains locations geologic cross sections used in the study.

This digital data set represents the extent of the High Plains aquifer in the central United States. The extent of the High Plains aquifer covers 174,000 square miles in eight states; Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. This data set represents a compilation of information from digital and paper sources and personal communication. This boundary is an update to the boundary published in U.S. Geological Survey Professional Paper 1400-B and Open-File Report 99-267.

This data set consists of digital base of aquifer elevation contours for the High Plains aquifer in the central United States. The High Plains aquifer extends from south of 32 degrees to almost 44 degrees north latitude and from 96 degrees 30 minutes to almost 104 degrees west longitude. The outcrop area covers 174,000 square miles and is present in Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. This digital data set was created by digitizing the base of aquifer elevation contours from a 1:1,000,000 base map created by the U.S. Geological Survey High Plains RASA project (Gutentag, E.D., Heimes, F.J., Krothe, N.C., Luckey, R.R., and Weeks, J.B., 1984, Geohydrology of the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming: U.S. Geological Survey Professional Paper 1400-B, 63 p.) The data should not be used at scales larger than 1:1,000,000.

The Willamette Lowland basin-fill aquifers (hereinafter referred to as the Willamette aquifer) is located in Oregon and in southern Washington. The aquifer is composed of unconsolidated deposits of sand and gravel, which are interlayered with clay units. The aquifer thickness varies from less than 100 feet to 800 feet. The aquifer is underlain by basaltic-rock. Cities such as Portland, Oregon, depend on the aquifer for public and industrial use (HA 730-H). This product provides source data for the Willamette aquifer framework, including: Georeferenced images: 1. i_08WLMLWD_bot.tif: Georeferenced figure of altitude contour lines representing the bottom of the Willamette aquifer. The original figure was from Professional Paper 1424-A, Plate 2 (1424-A-P2). The contour lines from this figure were digitized to make the file c_08WLMLWD_bot.shp, and the fault lines were digitized to make f_08WLMLWD_bot.shp. Extent shapefiles: 1. p_08WLMLWD.shp: Polygon shapefile containing the areal extent of the Willamette aquifer (Willamette_AqExtent). The original shapefile was modified to create the shapefile included in this data release. It was modified to only include the Willamette Lowland portion of the aquifer. The extent file contains no aquifer subunits. Contour line shapefiles: 1. c_08WLMLWD_bot.shp: Contour line dataset containing altitude values, in feet, referenced to National Geodetic Vertical Datum of 1929 (NGVD29), across the bottom of the Willamette aquifer. These data were used to create the ra_08WLMLWD_bot.tif raster dataset. Fault line shapefiles: 1. f_08WLMLWD_bot.shp: Fault line dataset containing fault lines across the bottom of the Willamette aquifer. These data were not used in raster creation but were included as supplementary information. Altitude raster files: 1. ra_08WLMLWD_top.tif: Altitude raster dataset of the top of the Willamette aquifer. The altitude values are in meters reference to North American Vertical Datum of 1988 (NAVD88). The top of the aquifer is assumed to be land surface based on available data and was interpolated from the digital elevation model (DEM) dataset (NED, 100-meter). 2. ra_08WLMLWD_bot.tif: Altitude raster dataset of the bottom of the Willamette aquifer. The altitude values are in meters reference to NAVD88. This raster was interpolated from the c_08WLMLWD_bot.shp dataset. Depth raster files: 1. rd_08WLMLWD_top.tif: Depth raster dataset of the top of the Willamette aquifer. The depth values are in meters below land surface (NED, 100-meter). The top of the aquifer is assumed to be land surface based on available data. 2. rd_08WLMLWD_bot.tif : Depth raster dataset of the bottom of the Willamette aquifer. The depth values are in meters below land surface (NED, 100-meter).

This child item dataset contains a shapefile detailing the extent of confined aquifers in the Oneonta, NY area.