This data release shows the digital hydrogeologic datasets were developed for the eight study areas in upstate New York in cooperation with the New York State Department of Environmental Conservation. These datasets define the hydrogeologic framework of the valley-fill aquifer and surrounding till-covered uplands within the four study areas. Also included within are the input data that was necessary to create and interpolate the hydrogeologic framework. The input data is provided as point feature classes, and previously published report georeferenced files along with the digitized data as line or polygon feature classes. The data release is broken into eight child item pages; one for each model area. Each child item contains the data pertaining to that study area. In addition to shapefiles, feature classes were provided for convenience to some users. These feature class datasets were not explicitly outlined in the data release and may have subtle differences to shapefiles due to inherent differences in file types (i.e. character limitations in shapefiles vs feature class files).

From 2016 through 2018, the U.S. Geological Survey, in cooperation with the New York State Department of Environmental Conservation, collected horizontal-to-vertical seismic soundings at 71 locations in the major valleys in the Oneonta area, Otsego and Delaware Counties, New York to help determine thickness of the unconsolidated deposits and the bedrock surface elevation. The HVSR technique, commonly referred to as the passive-seismic method, is used to estimate the thickness of unconsolidated sediments and the depth to bedrock (Lane and others, 2008; Fairchild and others, 2013). The passive-seismic method uses a single, broad-band three-component (two horizontal and one vertical) seismometer to record ambient seismic noise. In areas that have a strong acoustic contrast between the bedrock and overlying sediments, the seismic noise induces resonance at frequencies that range from about 0.3 to 40 Hz. The ratio of the average horizontal-to-vertical spectrums produces a spectral-ratio curve with peaks at fundamental and higher-order resonance frequencies. The spectral ratio curve (the ratio of the averaged horizontal-to-vertical component spectrums) is used to determine the fundamental resonance frequency that can be used along with an average shear-wave velocity or a power-law regression equation to estimate sediment thickness and depth to bedrock (Lane and others, 2008; Brown and others, 2013; Fairchild and others, 2013; Chandler and others, 2014; and Johnson and Lane, 2016). The HVSR data presented in this data release were collected at each site for 30 minutes using a Tromino Model TEP-3C three-component seismometer. The data were processed with Grilla 2012 version. 6.2 software to: 1) remove anthropogenic noise, 2) convert the time-domain data to frequency domain, 3) compute and plot the spectral ratio curve, and 4) determine the resonance frequency. This data release presents the resonance frequency peaks identified from the HVSR measurements. Raw and processed HVSR data for each HVSR measurement are presented in the attached files. The HVSR data-collection sites are designated by a county sequential numbering system (OGHVSR79, DHVSR1, etc. where "OG" indicates Otsego County and "D" indicates Delaware County).

This child item dataset contains a shapefile that delineates former and active gravel pits and quarries within the Owasco Inlet watershed.

The EWWSF study area is located in the vicinity of the towns of Ellenville, Wurtsboro, Woodbourne, and South Fallsburg, in Sullivan and Ulster Counties, New York. The EWWSF study area also extends into parts of Orange County, New York. Previous USGS reports here include USGS Scientific Investigations Map 2960 (Reynolds, 2007), Open-File Report 82-112 (Anderson and others, 1982), and Water Supply Paper 1985 (Frimpter, 1972). The five child pages below break the data up into georeferenced and digitized previous report data, interpreted geologic information, well logs, supplemental point data, and interpolation statistics.

The EWWSF study area is located in the vicinity of the towns of Ellenville, Wurtsboro, Woodbourne, and South Fallsburg, in Sullivan and Ulster Counties, New York. The EWWSF study area also extends into parts of Orange County, New York. Previous USGS reports here include USGS Scientific Investigations Map 2960 (Reynolds, 2007), Open-File Report 82-112 (Anderson and others, 1982), and Water Supply Paper 1985 (Frimpter, 1972). The five child pages below break the data up into georeferenced and digitized previous report data, interpreted geologic information, well logs, supplemental point data, and interpolation statistics.

The town of Ellicottville is located in Cattaraugus County, New York. There are no previous USGS reports here. The four child pages below break the data up into interpreted geologic information, well logs, supplemental point data., and interpolation statistics.

The town of Ellicottville is located in Cattaraugus County, New York. There are no previous USGS reports here. The four child pages below break the data up into interpreted geologic information, well logs, supplemental point data., and interpolation statistics.

This child item dataset contains a shapefile of inferred dead-ice sink locations in the Oneonta, NY area.

The town of Olean is located in Cattaraugus County, New York. Previous USGS reports here include Water- Resource Investigations Report 87-4043 (Yager and Bergeron, 1998), Water- Resource Investigations Report 85-4082 (Bergeron, 1987), and Water- Resource Investigations Report 85-4157 (Zarriello and Reynolds, 1987). The five child pages below break the data up into georeferenced and digitized previous report data, interpreted geologic information, well logs, supplemental point data, and interpolation statistics.

The town of Olean is located in Cattaraugus County, New York. Previous USGS reports here include Water- Resource Investigations Report 87-4043 (Yager and Bergeron, 1998), Water- Resource Investigations Report 85-4082 (Bergeron, 1987), and Water- Resource Investigations Report 85-4157 (Zarriello and Reynolds, 1987). The five child pages below break the data up into georeferenced and digitized previous report data, interpreted geologic information, well logs, supplemental point data, and interpolation statistics.