Bedinger, M.S. Harrill, M.S. 2006 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 dvrfs_harrill_contarea Reston, Virginia U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?sir045205_dvrfs_harrill_contarea 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. http://pubs.usgs.gov/sir/2004/5205/ This digital data set defines the boundary of the area contributing ground-water flow to the Death Valley regional ground-water flow-system (DVRFS) model domain. The boundary encompasses an approximate 112,000 square-kilometer region and was based on a map of regional potential developed by Bedinger and Harrill (2004). Where possible, the amount of lateral flow across the segments of the DVRFS model boundary from (or to) the contributing area was estimated from ground-water budgets of hydrologic units in the adjacent subregion (see "Larger Work Citation", Appendix 2). The lateral ground-water flow estimates were used to support development of the transient ground-water model of the DVRFS completed in 2004 by the USGS (see "Larger Work Citation", Chapter F). The boundary of the area contributing flow to the DVRFS by Bedinger and Harrill (2004) was used to estimate lateral ground-water inflow or outflow across the DVRFS model domain. This information was used to develop the transient ground-water model of the DVRFS (see Bedinger and Harrill, 2004). The boundary of the area contributing flow to the DVRFS 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. 2004 publication date Complete None planned -119.134925 -115.228161 39.187260 34.170086 USGS Water Basics Glossary. Accessed May 3, 2005 at http://capp.water.usgs.gov/GIP/h2o_gloss/; American Geological Institute Glossary of Geology Death Valley regional ground-water flow system evapotranspiration flow model ground water ground-water discharge ground-water pumping ground-water recharge hydraulic conductivity hydraulic head hydrogeologic framework model hydrogeology hydrology lateral ground-water flow lateral ground-water model boundary net infiltration spring flow steady state ground-water model transient ground-water model water level water well U.S. Board of Geographic Names (BGN) and 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

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San Diego California 92101 USA (619) 225-6142 (619) 225-6101 ccfaunt@usgs.gov http://water.usgs.gov/GIS/browse/sir045205_dvrfs_harrill_contarea.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 GIS and the data set author were checked by inspection using a GIS. In addition, attributes were checked and evaluated as part of the review process associated with the publication of the source report. Lines forming the polygon join at endpoints to completely enclose the 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. The polygon feature in this data set is based primarily on a regional potentiometric map (Bedinger and others, 2004) and on the boundaries of hydrologic units in some places. 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. Bedinger, M.S. Harrill, J.R. 2004 map Plate 1 Belcher, W.R. (editor) 2004 U.S. Geological Survey Scientific Investigations Report 2004-5205 Reston, Virginia U.S. Geological Survey http://water.usgs.gov/pubs/sir/2004/5205/ 650,000 Digital file 2004 publication date Bedinger and Harrill (2004) Source data used to develop boundary. Seaber, P.R. Kapinos, F.P. Knapp, G.L. 1987 map U.S. Geological Survey Water-Supply Paper 2294 Reston, Virginia U.S. Geological Survey 63 p., 1 plate. http://pubs.er.usgs.gov/pubs/wsp/wsp2294 7,500,000 Paper map 1987 publication date Seaber and others (1987) Source data. Line features forming the boundary of the area contributing flow to the DVRFS were extracted or generalized from acquired hard copy and digital maps using a GIS. Bedinger and Harrill (2004) developed the polygon feature using a regional potentiometric map developed as part of the same analysis. Where appropriate, portions of the boundary were modified to match the boundaries of hydrologic units (Seaber and others, 1987). The resulting polygon feature was attributed by the author (Point of Contact). Bedinger and Harrill (2004) Seaber and others (1987) 2004 Vector G-polygon 1 Universal Transverse Mercator 11 0.999600 -117.000000 0.000000 500000.000000 0.000000 coordinate pair 0.001024 0.001024 meters North American Datum of 1927 Clarke 1866 6378206.400000 294.978698 Boundary of area contributing flow to a defined ground-water flow system The boundary represents the approximate extent of a region where lateral ground-water flow may occur into or out of a ground-water system. Author (Metadata Contact Person) 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. Area_m2 Area of the study area in square meters. Author (Metadata Contact Person). Unique value representing the area of the study area in square meters. Each polygon feature has 3 attributes. Two attributes are automatically generated by the GIS (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 Ask USGS - Water Webserver Team mailing and physical address

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Reston VA 20192 USA 1-888-275-8747 http://water.usgs.gov/user_feedback_form.html/ 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 19 Kilobytes http://rmgsc.cr.usgs.gov/metadata/dvrfs/archive/dvrfs_harrill_contarea.zip None 20070814 U.S. Geological Survey mailing address

445 National Center

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