Joel Galloway 2000 Version 1.0, April 21, 2000 map USGS Open-File Report OFR00-471 Reston, VA U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?ofr00471_inkrpwpt Joel M. Galloway 1999 Open-File Report 99-602 Rapid City, SD U.S. Geological Survey This dataset describes wells completed in the Inyan Kara Group that were used to create a potentiometric surface for the Inyan Kara aquifer. This data set was created as part of the Black Hills Hydrology Study (BHHS). The BHHS is a long-term investigation that was initiated in 1990 as a cooperative effort between the U.S. Geological Survey (USGS), the South Dakota Department of Environment and Natural Resources (DENR), and the West Dakota Water Development District. West Dakota represents various local and county cooperators. The purpose of the study is to assess the quantity, quality, and distribution of surface and ground water in the Black Hills area of western South Dakota (Driscoll, 1992). The study area includes parts of Butte, Custer, Fall River, Lawrence, Meade, and Pennington counties in South Dakota. 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. The reviewers checked the metadata and a_readme.1st files for completeness and accuracy. Related_Spatial_and_Tabular_Data_Sets: Potentiometric contours for the Deadwood, Madison, Minnelusa, Minnekahta, and Inyan Kara aquifers (ddwdpcon, mdsnpcon, mnlspcon, mnktpcon, inkrpcon) and data set of wells with water-level information for each aquifer (ddwdpwpt, mdsnpwpt, mnlspwpt, mnktpwpt). Digital data set of spring locations in the Black Hills area (spngppt). Also, surficial hydrogeology in the Black Hills study area (hydrogeo). Other_References_Cited: >Driscoll, D.G., 1992, Plan of study for the Black Hills Hydrology > Study, South Dakota: U.S. Geological Survey Open-File Report 92-84, > 10 p. 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 ARC/INFO format, this metadata file may include some ARC/INFO-specific terminology. 19980615 This data set consists of wells with water-level data that were in GWSI in June 1998. Complete None Planned -104.75067326 -103.04329978 44.71225247 43.17672766 None wells water level hydrology ground water Inyan Kara Group Inyan Kara aquifer inlandWaters none Black Hills South Dakota none These data should not be used at scales larger than 1:100,000. Joel Galloway U.S. Geological Survey hydrologist mailing and physical address

1608 Mt. View Rd.

Rapid City South Dakota 57702 USA 1-888-275-8747 (605) 355-4523 (jgallowa@usgs.gov) Compilation of this data set and the associated metadata was funded in cooperation with the South Dakota Department of Environment and Natural Resources and the West Dakota Water Development District. SunOS, 5.6, sun4u UNIX ARC/INFO version 8.0.1 Joel Galloway 2000 map Open-File Report OFR00-471 Rapid City, South Dakota U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?ofr00471_inkrpcon Multiple visual checks were done to verify that the attribute data was coincident with the original source map. Point features present. This data set consists of well locations for the Inyan Kara aquifer in the vicinity of the Black Hills, South Dakota. Points were plotted on mylar and checked for accuracy using 1:24,000 topographic maps. Latitude and Longitude for each well and test hole were taken from the USGS "Ground Water Site Inventory" (GWSI) data base. Initial latitude and longitude for each well site was obtained through location plotting on and interpolation from USGS 1:24,000-scale topographic maps, or from GPS locations taken in the field. 19980701 1.Site-id, well, aquifer_code, remarks, lat_long_accur,and alt_accur information were downloaded from the GWSI database in a delimited ASCII text format. 2.The ASCII file was then imported into Microsoft Excel so that fields not present in the GWSI data base could be added. 3.The Microsoft Excel file was then exported as a delimited text file so that a point coverage could be created in ARC/INFO. 4.The locations and attributes were verified. 19980701 Well construction, well location, and related data were retrieved from the USGS Ground Water Site Inventory (GWSI) data base for wells that had the Inyan Kara aquifer listed as the primary aquifer. Wells were eliminated from the list if no measurement of static water level was available. Values of latitude and longitude for wells having a static water level were used as input to the ARC/INFO CREATEPOINT command to create a point coverage of these wells. 19980730 First draft of metadata created by gjarrell using FGDCMETA.AML ver. 1.33 07/15/99 on ARC/INFO data set /home/student/gja/meta/inkrpwpt 20000421 Point Point 223 Universal Transverse Mercator 13 0.9996 -105.0 0.0000 500,000 0.0000 coordinate pair 1.0 1.0 Meters North American Datum of 1927 Clarke 1866 6378206.4 294.98 > >INKRPWPT.PAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 AREA 8 18 F 5 > 9 PERIMETER 8 18 F 5 > 17 INKRPWPT# 4 5 B - > 21 INKRPWPT-ID 4 5 B - > 25 SITE_ID 15 15 C - > 40 WELL 12 12 C - > 52 HEAD 4 4 I - > 56 MEAN_HEAD 4 4 I - > 60 AQUIFER_CODE 7 7 C - > 67 LAT_LONG_ACCUR 1 1 C - > 68 ALT_ACCUR 8 8 F 2 > 76 LOG_TYPE 1 1 C - > 77 SOW 1 1 I - > > All of these items were retrieved from the USGS Ground Water Site Inventory data base, except for AREA, PERIMETER, <COV>#, <COV)-ID, HEAD, MEAN_HEAD, SOW, These items were created by staff of the BHHS. ------------------------------------------------------------ AREA: Area of the point (assigned zero). PERIMETER: Perimeter of the point (assigned zero). INKRPWPT#: An ARC/INFO generated internal feature identity number. INKRPWPT-ID: User-assigned feature identity number. SITEID: This is a unique number given to each well. SITEID is a combination of the latitude and longitude of the well, plus a sequence number for wells located at the same latitude and longitude. (Note: The latitudes or longitudes originally assigned to sites in GWSI occasionally are determined to be incorrect. In these cases, the latitude or longitude is corrected, but the station identification number generally remains unchanged. Thus, the latitude or longitude for an occasional site may not correspond exactly with the station identification number). WELL: This is a unique number based on the Federal land-survey system for western South Dakota. WELL consists of the township number followed by "N" or "S" (north or south of the Black Hills Baseline), the range number followed by "E" or "W" (east or west of the Black Hills Meridian), and the section number, followed by a maximum of four uppercase letters that indicate, respectively, the 160-, 40-, 10-, and 2.5-acre tract in which the site is located. These letters are assigned in a counterclockwise direction beginning with the letter "A" for the northeast quarter. A serial number following the last letter is used to distinguish between wells located in the same 2.5-acre tract. HEAD: The head value in each well. Head is equal to the altitude of land surface minus the water level. MEAN_HEAD: The arithmetic mean of multiple head values for the same well. Multiple head measurements exist when multiple water-level measurements were taken. AQUIFER_CODE: Unique code identifying the principal hydrogeologic unit the well is open to. LAT_LONG_ACCUR: The accuracy of the measured latitude and longitude. The accuracy ranges from one second (S) to one-minute (M). When the latitude/longitude accuracy is unknown, a blank is used. These can be summarized as follows: > LAT_LONG_ACCUR > > - One second S > - Five seconds F > - Ten seconds T > - One minute M ALT_ACCUR: Altitude accuracy; values range from less than one foot to several hundred feet. LOG_TYPE: The type of log available for the well. A blank is used when a log does not exist. The different types possible are: > LOG_TYPE > > - Drillers log D > - Electrical log E > - Fluid Cond. F > - Geologists log G > - Magnetic log H > - Induction log I > - Gamma Ray log J > - Dipmeter survey K > - Laterlog L > - Microlog M SOW: This item defines the state observation wells. State observation wells have a value of one; other wells have a value of zero. none 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+ofr00471_inkrpwpt 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 1 http://water.usgs.gov/GIS/dsdl/ofr00471_inkrpwpt.e00 Export Full coverage 1 http://water.usgs.gov/GIS/dsdl/ofr00471_inkrpwpt.e00.zip SDTS Full coverage zipped 1 http://water.usgs.gov/GIS/dsdl/ofr00471_inkrpwpt.tgz Other Full coverage zipped 1 http://water.usgs.gov/GIS/dsdl/ofr00-471_inkrpwpt_shp.tgz None. This dataset is provided by USGS as a public service. 20041108 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+ofr00471_inkrpwpt FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998