{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Public Information Officer", "hasEmail": "mailto:gs-w-txpublic-info@usgs.gov"}, "description": "This data release (version 4.0, February 2021) consists of a Microsoft\u00ae Access database and Microsoft\u00ae Excel workbook that contain water-level data and other hydrologic information for wells on and near the Nevada Test Site. The three worksheets in the Microsoft\u00ae Excel workbook also are provided as individual comma-separated values (CSV) files. The data release supports U.S. Geological Survey Data Series 533 (https://pubs.usgs.gov/ds/533/). \nThe Microsoft\u00ae Access database contains water levels measured from 925 wells in and near areas of underground nuclear testing at the Nevada Test Site. The water-level measurements were collected from 1941 to 2020. All water levels in the Microsoft\u00ae Access database are stored in the USGS National Water Information System (NWIS) database available at https://waterdata.usgs.gov/nv/nwis. The Microsoft\u00ae Access database also provides information for each well (well construction, borehole lithology, units contributing water to the well, and general site remarks) and water-level measurement (measurement source, status, method, accuracy, and specific water-level remarks). Additionally, the database provides hydrograph descriptions (hereinafter hydrograph narratives) that document the water-level history and describe and interpret the water-level hydrograph for each well. Multiple condition flags were assigned to each water\u2011level measurement to describe the hydrologic conditions at the time of measurement. The condition flags describe the general quality (accuracy), temporal variability, regional significance, and hydrologic conditions of the measurements.\nThe Microsoft\u00ae Excel workbook contains hydrographs and locations for the 925 wells, which are interactively presented in the workbook as an interface to the Microsoft\u00ae Access database. This workbook is designed to be an easy-to-use tool to obtain the water-level history for any well in the study area. Water-level data can be restricted to certain wells, dates, or hydrologic conditions by using the Microsoft\u00ae Excel built-in AutoFilter. Additional information provided in the workbook includes selected well-site information, water-level information, contributing units, the hydrograph narratives, and hyperlinks to the NWISWeb (http://waterdata.usgs.gov/nv/nwis/) site home page for each well. Information presented in the workbook for all water levels in the database also includes measurement source, status, method, accuracy, remarks, and hydrologic condition flags. Interpretations for individual water-level measurements and for the period of record for the wells have been incorporated into the water-level remarks, flags, or hydrograph narratives.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/F75H7FGN", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5f6b725682ce38aaa24514fe.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5f6b725682ce38aaa24514fe", "keyword": ["Clark County", "Frenchman Flat", "Lincoln County", "Nevada", "Nevada National Security Site", "Nevada Test Site", "Nye County", "Pahute Mesa", "Rainier Mesa", "Shoshone Mountain", "USGS:5f6b725682ce38aaa24514fe", "Yucca Flat", "environment", "geoscientificInformation", "groundwater", "groundwater level", "hydrograph", "inlandWaters", "nuclear test", "well"], "modified": "2021-02-05T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-117.0, 36.48, -115.65, 37.76", "theme": ["geospatial"], "title": "2020 update to the Database of Groundwater Levels and Hydrograph Descriptions for the Nevada Test Site Area, Nye County, Nevada (ver. 4.0)"}