Faunt, Claudia C. 2006 Edition 2 which is an update from sir045205_bnd_model_wri964300 map Digital geospatial data sets for the hydrogeologic framework and transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California bnd_model_wri964300 Reston, Virginia U.S. Geological Survey https://water.usgs.gov/lookup/getspatial?pp1711_bnd_model_wri964300 Belcher, W.R. and Sweetkind, D.S. (editors) 2010 U.S. Geological Survey Professional Paper 1711 Reston, Virginia U.S. Geological Survey 6 chapters, 2 appendices, 2 plates, 403 p. http://pubs.er.usgs.gov/publication/pp1711 Belcher, W.R. (editor) 2004 U.S. Geological Survey Scientific Investigations Report 2004-5205 Reston, Virginia U.S. Geological Survey 6 chapters, 2 appendices, 2 plates, 408 p. https://pubs.usgs.gov/sir/2004/5205/ This digital data set defines the boundary of the ground-water flow model by D'Agnese and others (1997). This steady-state, 3-layer ground-water flow model was developed by the U.S. Geological Survey (USGS) for the U.S. Department of Energy (DOE) to support investigations at Yucca Mountain, Nevada (see "Larger Work Citation", Chapter A, pages 7-8, for details). The model area encompasses approximately 35,000 square-kilometers of southern Nevada and California, or most of the Death Valley regional ground-water flow system (DVRFS) defined by D'Agnese and others (1997). Where possible, the lateral boundary encompassing the model area is a no-flow boundary resulting from physical barriers or hydraulic separation of flow regimes (ground-water divides or regional flow lines). Three major subregional flow systems are defined within the model area and represent areas where regional ground-water flow moves from recharge areas in Nevada to discharge areas in Death Valley. The boundary of the ground-water flow model by D'Agnese and others (1997) was used to develop the subsequent lateral boundary of the transient ground-water flow model of the Death Valley regional ground- water flow system (see "Larger Work Citation", figure A-2, p. 10). The boundary of the ground-water flow model by D'Agnese and others (1997) is one of many layers in a geospatial database supporting the USGS DVRFS project. During this 5-year (1998-2004) project the USGS, in cooperation with DOE and other Federal, State, and local agencies, developed this geospatial database for a regional-scale, 3D hydrogeologic framework model (HFM) and a ground-water flow model. The models are intended to address water-resource issues and the potential movement of radioactive material from the Nevada Test Site and the proposed high-level nuclear waste repository at Yucca Mountain, Nevada. Data from two previous ground-water flow models of the greater Death Valley region (see "Larger Work Citation", Chapter A, p. 7) were the foundation of the DVRFS geospatial database. These and other data were reexamined through a series of regional-scale hydrologic investigations to provide updated and spatially consistent interpretations for the DVRFS study. In some cases, new data were collected to augment the existing information. Data compiled from the studies include natural ground-water discharge occurring through evapotranspiration and spring flow; ground-water pumping for the period 1913-98; ground- water recharge simulated as net infiltration; ground-water inflow and outflow at lateral model boundaries; hydraulic conductivity and its relation to depth and other rock properties; and the estimation of water levels representative of prepumped and pumped conditions in the region. Digital elevation models, geologic maps, borehole information, cross sections, and other 3D models were used to develop the HFM which represents the geometry of 27 hydrogeologic units and structural features. The resulting geospatial database supports characterization and conceptualization of the DVRFS, construction of 3D hydrogeologic framework and ground-water flow models, and visualization of analysis and model results. 1997 publication date Complete None planned -117.678136 -115.074692 37.854449 35.634095 USGS Thesaurus Death Valley regional ground-water flow system evapotranspiration flow model ground water ground water discharge ground water recharge hydraulic conductivity hydraulic head hydrogeologic framework model hydrogeology hydrology lateral ground-water model boundary steady state ground-water model ground-water pumping lateral ground-water flow spring flow water level water well inlandWaters ISO 19115 Topic Category geoscientificInformation inlandWaters environment USGS Metadata Identifier USGS:840d7c45-333b-4776-ae42-afacdb3e01a6 Geographic Names Information System (GNIS) Amargosa Desert Ash Meadows California Valley Chicago Valley China Ranch Clark County Clayton Valley Coal Valley Death Valley eastern California Esmeralda County Eureka Valley Franklin Lake Garden Valley Inyo County Kern County Las Vegas Valley Lincoln County Mesquite Valley Mineral County Mono County Nevada Nevada Test Site Nye County Oasis Valley Owlshead Mountains Pahranagat Range Pahrump Valley Panamint Range Penoyer Valley Railroad Valley Resting Spring Saline Valley San Bernardino County Sarcobatus Flat Sheep Range Shoshone Silurian Valley southern Nevada Spring Mountains Stewart Valley Stone Cabin Valley Tecopa Yucca Mountain California Franklin Well None Data have been checked to ensure the accuracy of the data. If any errors are detected, please notify the originating office. The U.S. Geological Survey strongly recommends that careful attention be paid to the metadata file associated with these data. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Acknowledgement of the U.S. Geological Survey would be appreciated in products derived from these data. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in ArcGIS format, this metadata file may include some ArcGIS-specific terminology. U.S. Geological Survey Claudia Faunt mailing and physical address ([^"]*)

San Diego Projects Office

4165 Spruance Road

San Diego California 92101 USA (619) 225-6142 (619) 225-6101 ccfaunt@usgs.gov https://water.usgs.gov/GIS/browse/sir045205_bnd_model_wri964300.jpg Illlustration of data set jpg Spatial data sets supporting the Death Valley regional ground-water flow system (DVRFS) project were developed in cooperation with the U.S. Department of Energy (DOE) National Nuclear Security Administration/Nevada Site Office (NNSA/NSO) Underground Test Area (UGTA) project of the Office of Environmental Management, the NNSA/NSO Hydrologic Resource Management Program (HRMP), the Office of Civilian Radioactive Waste Management (OCRWM) Yucca Mountain Project (YMP), the NNSA/NSO Maintenance of Test Capability (MTC) program, and the National Park Service (NPS). Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722 Attributes added by the data set author were checked by inspection using queries in a GIS. In addition, attributes were checked and evaluated as part of the review process associated with the publication of the source report (Larger Work Citation). Lines forming polygons join at endpoints to completely enclose interior areas. Lines do not intersect, and no duplicate line features exist. All endpoints are represented by a single coordinate pair which indicates the beginning or end of a line. Polygon features in this data set were modified from the digital data set defining the DVRFS flow system (Faunt, bnd_wir964300, 2005). The data set is complete and is not anticipated to change. Horizontal positional accuracy of line features in the data set was tested by visually comparing to digital source maps using a GIS system. Claudia C. Faunt 2005 map Digital geospatial data sets for the hydrogeologic framework and transient ground-water flow model model, Death Valley regional ground-water flow system, Nevada and California bnd_wri964300 Reston, Virginia U.S. Geological Survey https://pubs.usgs.gov/sir/2004/5205/data/ 250,000 Digital file 1997 publication date Faunt, bnd_wri964300, 2005 Digital data set used to compile the output data set. D'Agnese, F.A. Faunt, C.C. Turner, A.K. Hill, M.C., 1997 map U.S. Geological Survey Water-Resources Investigations Report 96-4300 Reston, Virginia U.S. Geological Survey 124 p. http://pubs.er.usgs.gov/pubs/wri/wri964300 250,000 Digital file 1997 publication date D'Agnese and others (1997) Output data set. D'Agnese and others (1997) developed the boundary of the ground-water flow model using a GIS, the digital boundary of the Death Valley regional ground-water flow system (DVRFS; Faunt, 2005), a potentiometric surface, and hydrogeologic framework information. D'Agnese and others (1997) defined an area suitable for numerical simulation as the DVRFS flow system minus portions of the western, southern, and southeastern DVRFS flow system (approximately 25% of the total area) where data are less available. Faunt (2005) 1997 D'Agnese and others (1997) Vector G-polygon 3 Universal Transverse Mercator 11 0.999600 -117.000000 0.000000 500000.000000 0.000000 coordinate pair 0.000512 0.000512 meters North American Datum of 1927 Clarke 1866 6378206.400000 294.978698 Ground-water flow-model lateral boundary Boundary representing the areal extent simulated by a digital computer model that calculates a hydraulic head field for the modeling domain using numerical methods to arrive at an approximate solution to the differential equation of ground-water flow. Modified from Nevada Division of Water Planning Dictionary, Technical water, water quality, environmental, and water-related terms. Accessed May 13, 2005 at <http://water.nv.gov/Water%20planning/dict-1/wwords-g.pdf>. FID Internal feature number. Environmental Systems Research Institute, Inc. (ESRI) Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. SUBREGION Subregions within the ground-water flow model area Author (Point of Contact) 1 Northern Death Valley subregion D'Agnese and others (1997) 2 Central Death Valley subregion D'Agnese and others (1997) 3 Southern Death Valley subregion D'Agnese and others (1997) AREA_m2 Subregion area in square meters Metadata Author 5575029760 22236200960.0 Square meter SUBREG_NAM Subregion name Metadata Author Descriptive name of subregion Polygon features in this data set have 5 attributes. Attributes automatically generated by the GIS system (FID, Shape) are for internal software purposes. The remaining attributes were assigned by authors (Point of Contact, Metadata Contact) for analytical and descriptive purposes. - U.S. Geological Survey Michael Ierardi mailing and physical address

445 National Center

Reston VA 20192 USA 1-888-275-8747 mierardi@usgs.gov Contact via email or phone. Digital geospatial data sets for the transient ground-water flow model and hydrogeologic framework model, Death Valley regional ground-water flow system, Nevada and California Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. These data should be directly acquired from a U.S. Geological Survey server, and not indirectly through other sources that may have altered the data in some way. Shapefile 1.0 Unzip 29 https://water.usgs.gov/GIS/dsdl/bnd_model_wri964300.zip None 20201117 U.S. Geological Survey mailing address

445 National Center

Reston Virginia 20192 USA 1-888-275-8747 (1-888-ASK-USGS) mierardi@usgs.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998