Abbott, Marvin M. Runkle, Donna Rea, Alan 1997 1.0 map Open-File Report 96-444 Reston, VA U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?ofr96-444_cond This data set consists of digitized polygons of constant hydraulic conductivity values for the Vamoosa-Ada aquifer in east-central Oklahoma. The Vamoosa-Ada aquifer is an important source of water that underlies about 2,320-square miles of parts of Osage, Pawnee, Payne, Creek, Lincoln, Okfuskee, and Seminole Counties. Approximately 75 percent of the water withdrawn from the Vamoosa-Ada aquifer is for municipal use. Rural domestic use and water for stock animals account for most of the remaining water withdrawn. The Vamoosa-Ada aquifer is defined in a ground-water report as consisting principally of the rocks of the Late Pennsylvanian-age Vamoosa Formation and overlying Ada Group. The Vamoosa-Ada aquifer consists of a complex sequence of fine- to very fine-grained sandstone, siltstone, shale, and conglomerate interbedded with very thin limestones. The water-yielding capabilities of the aquifer are generally controlled by lateral and vertical distribution of the sandstone beds and their physical characteristics. The Vamoosa-Ada aquifer is unconfined where it outcrops in about an 1,700-square-mile area. The hydraulic conductivity of the Vamoosa-Ada aquifer was computed as 3 feet per day in a ground-water report. Most of the hydraulic conductivity polygons were extracted from published digital geology data sets. The lines in the digital geology data sets were scanned or digitized from maps published at a scale of 1:250,000 and represent geologic contacts. Some of the lines in the data set were interpolated in areas where the Vamoosa-Ada aquifer is overlain by alluvial and terrace deposits near streams and rivers. This data set was created for a project to develop data sets to support ground-water vulnerability analysis. The objective was to create and document a digital geospatial data set from a published report or map, or existing digital geospatial data sets that could be used in ground-water vulnerability analysis. Introduction -- This data set consists of digitized polygons of constant hydraulic conductivity values for the Vamoosa-Ada aquifer in east-central Oklahoma. The Vamoosa-Ada aquifer is an important source of water that underlies about 2,320-square miles of parts of Osage, Pawnee, Payne, Creek, Lincoln, Okfuskee, and Seminole Counties. Approximately 75 percent of the water withdrawn from the Vamoosa-Ada aquifer is for municipal use. Rural domestic use and water for stock animals account for most of the remaining water withdrawn. The Vamoosa-Ada aquifer is defined in a ground-water report as consisting principally of the rocks of the Late Pennsylvanian-age Vamoosa Formation and overlying Ada Group. The Vamoosa-Ada aquifer consists of a complex sequence of fine- to very fine-grained sandstone, siltstone, shale, and conglomerate interbedded with very thin limestones. The water-yielding capabilities of the aquifer are generally controlled by lateral and vertical distribution of the sandstone beds and their physical characteristics. The Vamoosa-Ada aquifer is unconfined where it outcrops in about an 1,700-square-mile area (D'Lugosz and others, 1986). The Vamoosa Formation is underlain by the Tallant and Barnsdall Formations in the northern part of the aquifer and the Hilltop and Belle City Formations in the southern part of the aquifer. The Ada Group in overlain by the Vanoss Group. The Vamoosa-Ada aquifer is overlain by alluvial and terrace deposits in some parts of the aquifer (Cederstrand, 1996a, 1996b, 1996c). Recovery tests were performed on seven wells completed in the confined part of the Vamoosa-Ada aquifer by D'Lugosz and others (1986, p. 5) to determine some of the hydraulic properties of the aquifer. Hydraulic-conductivity values were calculated from these tests and ranged from 2 to 4 feet per day. A hydraulic-conductivity value of 3 feet per day was used by D'Lugosz and others (1986, p. 5) to compute values of theoretical transmissivity for both the unconfined and confined parts of the aquifer. A hydraulic-conductivity value of 3 feet per day for the Vamoosa-Ada aquifer was used in this data set. The Digital Line Graph (DLG) format requires numbers to be stored as integers. Therefore, the hydraulic conductivity in feet per day was multiplied by 10 and stored in the digital data sets as tenths of a foot per day. For example 3 feet per day was multiplied by 10 and stored in the digital data sets as 30 tenths of a foot per day. Geologic units other than the Vamoosa Formation and Ada Group were given a value -99999 to indicate hydraulic conductivity is not known. The hydraulic conductivity of the alluvial and terrace deposits of the North Canadian River, located in the southern part of the Vamoosa-Ada aquifer, can be found in the report "Digital aquifer characteristics of the alluvial and terrace deposits along the North Canadian River from Oklahoma City to Eufaula Lake in east-central Oklahoma," by Adams, Runkle, Rea, and Becker (1997). Most of the hydraulic conductivity polygons were extracted from published digital geology data sets (Cederstrand, 1996a, 1996b, 1996c). The lines in the digital geology data sets were scanned or digitized from maps published at a scale of 1:250,000 and represent geologic contacts. Some of the lines were interpolated in areas where the Vamoosa-Ada aquifer is overlain by alluvial and terrace deposits near streams and rivers. A line representing the contact between the Vamoosa Formation and the Ada Group is included in this data set. Reviews Applied to Data -- This electronic report was subjected to the same review standard that applies to all U.S. Geological Survey reports. Reviewers were asked to check the topological consistency, tolerances, attribute frequencies and statistics, projection, and geographic extent. Reviewers were given digital data sets and paper plots for checking against the source maps to verify the linework and attributes. The reviewers checked the metadata and a_readme.1st files for completeness and accuracy. Related Spatial and Tabular Data Sets -- This data set is one of four digital map data sets being published together for this aquifer. The four data sets are: > aqbound - aquifer boundaries > cond - hydraulic conductivity > recharg - aquifer recharge > wlelev - water-level elevation contours Digital map data sets of the Oklahoma surficial geology digitized from 1:250,000-scale maps (or 1:125,000-scale maps for the three Oklahoma panhandle counties) are published separately. Other References Cited -- Adams, G.P., Runkle, Donna, Rea, Alan, and Becker, C.J., 1997, Digital aquifer characteristics of the alluvial and terrace deposits along the North Canadian River from Oklahoma City to Eufaula Lake in east-central Oklahoma: U.S. Geological Survey Open-File Report 96-448, based on scale 1:250,000, 1 diskette. (In nonproprietary and ARC/INFO formats.) URL:http://water.usgs.gov/lookup/get?OFR96-448 Cederstrand, J.R., 1996a, Digital geologic map of the Ardmore-Sherman quadrangles, south-central Oklahoma: U.S. Geological Survey Open-File Report 96-370, based on a scale of 1:250,000, 3 diskettes. (Available in nonproprietary and ARC/INFO formats.) URL:http://wwwok.cr.usgs.gov/gis/geology/index.html Cederstrand, J.R., 1996b, Digital geologic map of Enid quadrangle, north-central Oklahoma: U.S. Geological Survey Open-File Report 96-377, based on a scale of 1:250,000, 4 diskettes. (Available in nonproprietary and ARC/INFO formats.) URL: http://wwwok.cr.usgs.gov/gis/geology/index.html Cederstrand, J.R., 1996c, Digital geologic map of Oklahoma City quadrangle, central Oklahoma: U.S. Geological Survey Open-File Report 96-378, based on a scale of 1:250,000, 2 diskettes. (Available in nonproprietary and ARC/INFO formats.) URL:http://wwwok.cr.usgs.gov/gis/geology/index.html D'Lugosz, J.J., McClaflin, R.G., and Marcher, M.V., 1986, Geohydrology of the Vamoosa-Ada aquifer east-central Oklahoma: Oklahoma Geological Survey Circular 87, 42 p. Notes -- 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 data set has been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. 1986 publication date Complete None planned -96.7807 -96.0003 37.0010 34.8562 none ground-water vulnerability groundwater vulnerability aquifers ground water groundwater Vamoosa-Ada aquifer Ada aquifer Vamoosa aquifer Vamoosa-Ada aquifer Vamoosa Formation Ada Group hydraulic conductivity inlandWaters none east-central Oklahoma None Most of the lines in this data set were extracted from digital geology data sets (Cederstrand, 1996a, 1996b, 1996c) based on a scale of 1:250,000, that represent geologic contacts and make up aquifer boundaries described by D'Lugosz and others (1986). Hydraulic conductivity polygons represented at this scale are indicative of broad, regional trends and should not be interpreted as site specific. Marvin M. Abbott U.S. Geological Survey Hydrologist mailing address

202 NW 66th St., Bldg. 7

Oklahoma City Oklahoma 73116 United States of America 1-888-275-8747 (405) 843-7712 mmabbott@usgs.gov none http://water.usgs.gov/lookup/get?OFR96-444/browse.gif A browse image of the four aquifer data sets. GIF Compilation of this data set and the associated metadata was funded under a cooperative Joint Funding Agreement between the U.S. Geological Survey and the State of Oklahoma, Office of the Secretary of Environment. Public UNCLASSIFIED None Operating System-- UNIX, ARC/INFO Version 7.0.3,(Mon Mar 13 22:21:55 PST 1995) Adams, G.P., Runkle, Donna Rea, Alan Becker, C. J. 1997 1.0 map Open-File Report 96-448 Oklahoma City, OK U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?ofr96-444_cond Cederstrand, Joel R. 1996 1.0 map Open-File Report 96-370 Oklahoma City, OK U.S. Geological Survey http://wwwok.cr.usgs.gov/gis/geology/index.html Cederstrand, Joel R. 1996 1.0 map Open-File Report 96-377 Oklahoma City, OK U.S. Geological Survey http://wwwok.cr.usgs.gov/gis/geology/index.html Cederstrand, Joel R. 1996 1.0 map Open-File Report 96-378 Oklahoma City, OK U.S. Geological Survey http://wwwok.cr.usgs.gov/gis/geology/index.html Polygon and chain-node topology present. This data set includes all the outcrop areas of the Vamoosa Formation and Ada Group from Cederstrand (1996a, 1996b, 1996c) for the unconfined part of the aquifer except where aquifer boundaries are covered by alluvial and terrace deposits. The aquifer boundaries covered by alluvial and terrace deposits were projected. None Unknown Resolution as reported None. D'Lugosz and others,(1986) define the aquifer as, "*** that part of the Vamoosa-Ada aquifer lying between the outcrop of the base of the aquifer in the east and the approximate location in the subsurface, projected to the surface, where the aquifer contains water having a dissolved solids concentration of 1,500 miiligrams per liter on the west." They interpret the eastern boundary of the aquifer as underlying the alluvial and terrace deposits where streams cross the aquifer outcrop at the base of the Vamoosa Formation. The outcrop area of the aquifer is important for purposes of this investigation into ground-water vulnerability analysis. The eastern boundary of the aquifer, the base of the Vamoosa Formation, and the western boundary of the aquifer, the top of the Ada Formation, are from the geologic formation boundaries by Cederstrand (1996a, 1996b, 1996c), which is considered to be the best available digital source. Where the formation boundaries are overlain by alluvial and terrace deposits the boundaries were projected across the streams from known outcrops. Most of the projections are perpendicular to the streams and for short distances across the alluvial and terrace deposits. The projected lines were added to the outcrop boundary lines on a computer monitor screen with an enlarged image of the areas to enhance the detail. 1996 See Cederstrand (1996a, 1996b, 1996c) 1996 Vector Point 235 String 395 GT-polygon composed of chains 236 Albers Conical Equal Area 29.5 45.5 -96 23 0.0 0.0 coordinate pair Unknown Unknown METERS North American Datum of 1983 Geodetic Reference System 80 6378137 298.257 COND.PAT Polygon attribute table ARC/INFO - Polygon attribute table ARC/INFO - n/a n/a AREA Area of poly/region in square coverage units Computed Positive real numbers n/a n/a PERIMETER Perimeter of poly/region in coverage units Computed Positive real numbers n/a n/a COND# Internal feature number Computed Sequential unique positive integer n/a n/a COND-ID User-assigned feature number User-defined Integer n/a n/a K Hydraulic conductivity in tenths of a foot per day 'D''Lugosz and others (1986)' 30 n/a n/a MINOR1 Blank item for DLG Calculated 0 n/a n/a MAJOR1 Hydraulic conductivity in tenths of a foot per day 'D''Lugosz and others (1986)' 30 n/a n/a COND.AAT Arc attribute table ARC/INFO - Arc attribute table ARC/INFO - n/a n/a FNODE# Internal number of from-node Computed Sequential unique positive integer n/a n/a TNODE# Internal number of to-node Computed Sequential unique positive integer n/a n/a LPOLY# Internal number of poly to left of arc Computed Sequential unique positive integer n/a n/a RPOLY# Internal number of poly to right of arc Computed Sequential unique positive integer n/a n/a LENGTH Length of arc in coverage units Computed Positive real numbers n/a n/a COND# Internal feature number Computed Sequential unique positive integer n/a n/a COND-ID User-assigned feature number User-defined Integer n/a n/a LSOURCE Source of line Cederstrand, J.R., (1996a, 1996b, 1996c), Author, Abbott, Marvin M. 2,4 n/a n/a MINOR1 Blank item for DLG Calculated 0 n/a n/a MAJOR1 Source of line Cederstrand, J.R., (1996a, 1996b, 1996c), Author, Abbott, Marvin M. 2,4 n/a n/a Each polygon in this data set has an associated attribute, K, containing values of hydraulic conductivity (D'Lugosz and others, 1986) expressed in tenths of a foot per day. For example, a hydraulic conductivity of 3.0 feet per day would be stored as a K value of 30. K is stored in the first major code (MAJOR1 for polygons, and 0 is stored in the first minor code (MINOR1) in the Digital Line Graph (DLG) version of this data set. Each line in this digital data set has an associated attribute, LSOURCE, that contains a code to indicate the source of the line. An LSOURCE code of 1 indicates the line is from Cederstrand (1996a, 1996b, 1996c). An LSOURCE code of 3 indicates the source of the line is the projection of the boundary where the aquifer is overlain by alluvial or terrace deposits. LSOURCE is stored in the first major code (MAJOR1) for lines, and 0 is stored in the first minor code (MINOR1) in the Digital Line Graph (DLG) version of this data set. See overview. U.S. Geological Survey Ask USGS - Water Webserver Team mailing

445 National Center

Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+ofr96-444_cond Although this data set has been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Export Full coverage zipped 1 http://water.usgs.gov/GIS/dsdl/ofr96-444_cond.e00.gz Other DLG file format zipped 1 http://water.usgs.gov/GIS/dsdl/ofr96-444_cond.dlg.gz None. This dataset is provided by USGS as a public service. 20041108 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing

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Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+ofr96-444_cond FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998