Faunt, Claudia C. 2006 Edition 2 which is an update from sir045205_bnd_wri964300 vector digital data 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_wri964300 Reston, Virginia U.S. Geological Survey https://water.usgs.gov/lookup/getspatial?pp1711_bnd_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 flow-system boundary encompassing the regional ground-water flow model by D'Agnese and others (1997). The boundary encompasses an approximately 50,000 square-kilometer region of southern Nevada and California, defined as the Death Valley region by Bedinger and others (1989; see Source Citation Information). The flow-system boundary is mostly a no-flow boundary resulting from physical barriers or hydraulic separation of flow regimes (ground-water divides or regional flow lines). D'Agnese and others (1997) used results from the evaluation of flow-system components, such as recharge, discharge and hydrogeologic framework, to develop the ground-water flow model of the Death Valley regional ground-water flow system (DVRFS) to support investigations at Yucca Mountain, Nevada, for the U.S. Department of Energy. The regional ground-water flow model was also the basis of development for a transient-flow model of an expanded DVRFS region that was completed in 2004 by the U.S. Geological Survey (see "Larger Work Citation", Chapter A, pages 7-8, for details). The flow-system boundary by D'Agnese and others (1997) was used to develop the subsequent lateral boundary of the Death Valley regional ground-water flow system and transient model (see "Larger Work Citation", figure A-2, p. 10). The flow-system boundary by D'Agnese and others (1997) is one of many data sets 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 -117.710346 -115.070281 37.961772 35.147465 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 net infiltration water level inlandWaters ISO 19115 Topic Category geoscientificInformation inlandWaters environment USGS Metadata Identifier USGS:ac054a54-5611-4d42-b429-653a1e4d7395 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

California Water Science Center

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_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's (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's (OCRWM) Office of Repository Development (ORD), 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 the polygon join at endpoints to completely enclose the interior area. 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. Line features forming the polygon in this data set were compiled by D'Agnese and others (1997) from Bedinger and others (1989a), Waddell and others (1984), Harrill and others (1988), and Bedinger and others (1989b). The data set is complete and is not anticipated to change. Horizontal positional accuracy of line features forming the polygon in the data set was tested by visually comparing to digital source maps using a GIS. Bedinger, M.S. Langer, W.H. Reed, J.E. 1989 map Digital data set modified from plate 3. Bedinger, M.S. (Editor) Sargent, K.A. (Editor) Langer, W.H. (Editor) 1989 map U.S. Geological Survey Professional Paper 1370-F Washington D.C. United States Government Printing Office http://pubs.er.usgs.gov/pubs/pp/pp1370F 500,000 paper 1989 publication date Bedinger and others (1989a) Base map modified to create digitial data set. Waddell, R.K. Robison, J.H. Blankennagel, R.K. 1984 document U.S. Geological Survey Water-Resources Investigations Report 84-4267 Geological Survey Lakewood, CO. Water Resources Div. U.S. Geological Survey http://pubs.er.usgs.gov/pubs/wri/wri844267 paper 1984 publication date Waddell and others (1984) Report used to modify boundary. Harrill, J.R. Gates, J.S. Thomas, J.M. 1988 map U.S. Geological Survey Hydrologic Investigations Atlas HA-694-C Reston, Virginia U.S. Geological Survey http://pubs.er.usgs.gov/pubs/ha/ha694C 1000000 paper 1988 publication date Harrill and others (1988) Plate used to modify the data set. Bedinger, M.S. Sargent, K.A. Langer, W.H. 1989 map U.S. Geological Survey Professional Paper 1370-F Washington D.C. United States Government Printing Office http://pubs.er.usgs.gov/pubs/pp/pp1370F 500,000 paper 1989 publication date Bedinger and others (1989b) Source material used to modify digital 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 http://pubs.er.usgs.gov/pubs/wri/wri964300 250,000 online 1997 publication date D'Agnese and others (1997) Source material used to modify digital data set. D'Agnese and others (1997) developed the polygon feature in this data set by manually tracing a paper-based copy of plate 3 in Bedinger and others (1989a) onto a stable base mylar. A drumbed scanner was then used to capture the digital data at a resolution of approximately 0.01 inches. A minimum of four control points corresponding to the latitude and longitude even degree locations on the plate were used to register the data to Universal Transverse Mercator (UTM) during digitization. The digital data set was checked by comparing plots to the source material, and the coverage was attributed. Portions of the data set were subsequently modified to conform to a better understanding of the flow system using information from Waddell and others (1984), Harrill and others (1988), and Bedinger and others (1989b). Bedinger and others (1989a) Waddell and others (1984) Harrill and others (1988) Bedinger and others (1989b) 1993 D'Agnese and others (1997) Vector G-polygon 1 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 system boundary The boundary represents the approximate lateral extent of a ground-water flow system. Author (Metadata Contact Person) Shape Feature geometry. Environmental Systems Research Institute, Inc. (ESRI) Coordinates defining the features. FID Internal feature number. Environmental Systems Research Institute, Inc. (ESRI) Sequential unique whole numbers that are automatically generated. Area_m2 Area of the ground-water flow system in square meters. Author (Metadata Contact Person) Unique value representing the area of the flow system in square meters. The polygon feature has 3 attributes. Two attributes are automatically generated by the GIS system (FID, Shape) for internal software purposes. The remaining attribute was assigned by the author (Metadata Contact) for analysis and[or] descriptive purposes (Area_m2). - 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 41 https://water.usgs.gov/GIS/dsdl/bnd_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