Water-Table Elevation Map of Sauk County, Wisconsin (Digital Information, version 1.0): Water-Table Elevation Contours, Wells Representative of the Water Table, Approximate Groundwater Divides, and Major Surface-Water Divides
Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information
Identification Information
Section Index
Citation:
Citation Information:
Originator: Madeline Gotkowitz and Kurt Zeiler
Publication Date: 2003
Title:
Water-Table Elevation Map of Sauk County, Wisconsin (Digital Information, version 1.0): Water-Table Elevation Contours, Wells Representative of the Water Table, Approximate Groundwater Divides, and Major Surface-Water Divides
Edition: 1.0
Geospatial Data Presentation Form: vector digital data
Series Information:
Series Name: Miscellaneous Map
Issue Identification: 55 (Digital Information)
Publication Information:
Publication Place: Madison, Wisconsin
Publisher: Wisconsin Geological and Natural History Survey (WGNHS)
Other Citation Details:
This product represents the digital information presented in "Water-Table Elevation Map of Sauk County, Wisconsin" WGNHS Miscellaneous Map 55. This dataset includes four parts as ArcInfo coverages/export files:
1. Water-Table Elevation Contours, Sauk County, Wisconsin (sk_wtline),
2. Wells Representative of the Water Table, Sauk County, Wisconsin (sk_wtwells),
3. Approximate Groundwater Divides, Sauk County, Wisconsin (sk_wtdiv), and
4. Major Surface-Water Divides, Sauk County, Wisconsin (sk_swdiv).
Description:
Abstract:
This map shows the approximate elevation of the water table in Sauk County, Wisconsin. Each contour line on the map connects points of equal water-table elevation. Groundwater elevations were estimated from the elevations of surface-water features such as streams, lakes, and wetlands and from the depth to water recorded on 1,100 Wisconsin Department of Natural Resources well constructor’s reports. U.S. Geological Survey (USGS) digital data for hydrography (derived from 2001 data), topographic quadrangles (7.5-minute series; 1996-97), and the National Elevation Dataset (2001) were used as aids in estimating these elevations and contouring the data.
The location of each well constructor’s report used in constructing these contours is also provided. These well locations are control points for the contours, as are surface-water elevations throughout the county.
The accuracy of the water-table contours varies throughout the study area, increasing near surface-water bodies and where there is a greater density of wells. Contour lines are dashed in areas where groundwater-elevation data were not available; in these areas, the water-table elevation is inferred from topography. The water-table elevations shown on this map are an approximation; water levels may vary due to seasonal fluctuations in recharge or due to recent, large-volume pumping from groundwater wells.
The use of water levels recorded on well constructor’s reports to create this map may also be a source of inaccuracy. Water-supply wells are not ideal measuring points for determining the water-table elevation because most of these wells are open to the aquifer over long intervals that extend far below the top of the saturated zone. In low-lying areas, such as the outwash plains, this well design provides a good measurement of depth to groundwater because groundwater flow is predominantly horizontal. At higher elevations and in areas of steep terrain, groundwater flow may have a significant vertical component to its flow. In such areas, the water level measured in a well may be lower than the water-table elevation. For this reason, it is difficult to determine accurately the water-table elevation on ridgetops in the uplands.
These data are intended for use at the scale of the paper publication (1:100,000), which is a regional interpretation of the water table and may not be sufficient for use at a site-specific scale. Limited field surveys of stream headwaters were conducted to assess seasonal variability in the stream locations shown on the 7.5-minute topographic maps. Shallow geophysical surveys were conducted at two locations in the uplands of the Driftless Area and confirmed that a perched aquifer was not present in the surficial deposits overlying the bedrock aquifer at the time the surveys were performed (midsummer). Information used from the well constructor’s reports was not field verified.
In Sauk County in the glaciated area, in the glacial lake basins, and in the outwash plains in the east and south, the uppermost aquifer is the sand and gravel aquifer. In the outwash plains, this aquifer is composed of sand and gravel deposits that are up to 300 ft thick and yield large volumes of water to wells. To the east of the terminal moraine (for example, near Leech Creek), this aquifer consists of till deposits of variable composition. Wells completed in the till intersect layers of sand or sand and gravel that are of limited thickness and areal extent. These wells produce less water than those in the outwash plains. Steep-sided valleys surround narrow uplands in the Driftless Area. A thin (generally less than 25 ft thick) layer of soil or clay covers the uplands. This cover is typically unsaturated; the water table is in the uppermost bedrock. In some parts of the uplands, the uppermost bedrock unit is dolomite. In areas where the dolomite has been eroded, the uppermost rock is sandstone. Over a large part of Sauk County, the bedrock aquifer is very thick, consisting of up to 500 ft of interbedded sandstone, dolomite, and shale. It underlies the sand and gravel aquifer where the sand and gravel is present. The sandstone and dolomite layers are absent throughout much of the Baraboo Hills. The larger valleys of the Driftless Area (for example, Honey Creek valley or the Baraboo River valley) contain thick alluvial (river) deposits overlying sandstone. In these areas, the sand and gravel aquifer provides sufficient groundwater for domestic wells. Along the edges of these valleys, where alluvial deposits are very thin or not present, the uppermost aquifer is the bedrock aquifer. The Baraboo Hills consist of Precambrian quartzite and rise more than 800 ft above the surrounding land. Throughout much of the Baraboo Hills, the quartzite, which is crystalline rock, is the uppermost geologic material; the soil is very thin and the sandstone and dolomite aquifer is not present. The quartzite itself is relatively impermeable; groundwater flows primarily through fractures in the rock. Wells open to the quartzite do not produce large amounts of water. Although the water table is mapped as a continuous surface across this area, groundwater flow directions in fractured rock aquifers can be more complex than in porous aquifers, and local flow directions in the quartzite should not be inferred solely from these regional contours. The location of each well constructor’s report used in making the water-table elevation map of Sauk County is indicated with a symbol representing the type of geologic material in which the well was completed. This information can be used to determine where the sand and gravel and dolomite/sandstone bedrock aquifers are present in sufficient thickness to supply groundwater to wells. These locations are also provided so that the user may understand the data density used to construct the water-table elevation contours and groundwater divides.
The approximate locations of major groundwater divides in Sauk County are also depicted on the map. A groundwater divide is similar to a surface-water divide, in that it is a ridge along the highest elevations of the water table. Shallow groundwater moves away from this divide, toward groundwater discharge areas. The major groundwater divides in Sauk County are along or relatively close to surface-water divides. Groundwater divides are depicted in this data set as wide and approximate areas because the location of the divide may change as the water table rises and falls in response to periods of rainfall and drought. Significant amounts of groundwater pumping from wells drilled near divides may also cause a divide to shift. The groundwater divides are useful to identify the areas in which shallow groundwater flows toward particular stream systems. For example, in northeastern Sauk County, groundwater flows toward the Dell Creek basin, discharging to Dell Creek or its tributaries, Leech Creek, small streams and wetlands, or directly into the Wisconsin River. In northwestern Sauk County and the basin of the Baraboo range, groundwater flow is toward the Baraboo River and its tributaries. In southwestern Sauk County, the groundwater divide delineates the area where groundwater flows toward Honey Creek from the area where flow is toward Bear Creek, Wilson Creek, and the Wisconsin River. In the southeastern part of the county, the divide shows where groundwater flows toward Honey Creek or Otter Creek and the Wisconsin River.
A surface-water divide is a line of separation, commonly along a ridge or tract of high ground, that divides surface waters that flow naturally into one basin from those that flow naturally into a different basin. All the major streams and rivers in Sauk County flow into the Wisconsin River. However, several minor surface-water divides separate the basins of Dell and Leech Creeks, the Baraboo River, and Honey Creek. The surface-water divides presented are not a complete set for the county. Rather, several of the minor surface-water divides are included to illustrate the relationship between them and the associated groundwater divides.
Purpose:
The water-table contours, well locations, and surface and groundwater divides presented in this map constitute a part of the data compiled and analyzed for the Sauk County Groundwater Project, a joint project of the Wisconsin Geological and Natural History Survey, the Sauk County Board of Supervisors, the Wisconsin Department of Natural Resources Bureau of Drinking Water and Groundwater, and the U.S. Geological Survey. The purpose of this project was to compile and analyze data regarding the county’s groundwater resources. Knowledge of the shape and elevation of the water table is critical to understanding groundwater flow patterns through aquifers.
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 1936
Beginning Time: Unknown
Ending Date: 2001
Ending Time: Unknown
Currentness Reference: ground condition
Status:
Progress: Complete
Maintenance and Update Frequency: None planned
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -90.31232
East Bounding Coordinate: -89.59921
North Bounding Coordinate: 43.64226
South Bounding Coordinate: 43.14531
Keywords:
Theme:
Theme Keyword Thesaurus: WGNHS Theme Thesaurus
Theme Keyword: water table
Theme Keyword: aquifer
Theme Keyword: groundwater
Theme Keyword: bedrock
Theme Keyword: unconsolidated material
Theme Keyword: alluvium
Theme Keyword: well
Theme Keyword: surface water
Place:
Place Keyword Thesaurus: WGNHS Place Thesaurus
Place Keyword: Baraboo Hills
Place Keyword: Sauk County
Place Keyword: Driftless Area
Place Keyword: Wisconsin River valley
Place Keyword: Wisconsin
Access Constraints:
These data are available to anyone; however, the data are copyrighted and are licensed for use, not sold. Users must accept the Digital Data Sharing Agreement of the Wisconsin Geological and Natural History Survey.
Use Constraints:
THESE DATA ARE PROVIDED BY THE WISCONSIN GEOLOGICAL AND NATURAL HISTORY SURVEY (WGNHS) ON AN "AS IS" BASIS. WGNHS WILL NOT BE LIABLE FOR ANY DAMAGES OF ANY KIND ARISING FROM THE USE OF THESE DATA, INCLUDING, BUT NOT LIMITED TO DIRECT, INDIRECT, PUNITIVE, AND CONSEQUENTIAL. WGNHS MAKES NO WARRANTIES ON THESE DATA, EXPRESS, IMPLIED, STATUTORY, OR IN ANY OTHER PROVISION OF ANY AGREEMENT OR COMMUNICATION, AND SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Wisconsin Geological and Natural History Survey
Contact Position: Information Manager
Contact Address:
Address Type: mailing and physical address
Address: 3817 Mineral Point Road
City: Madison
State or Province: WI
Postal Code: 53705-5100
Country: USA
Contact Voice Telephone: (608) 263-7386
Contact Facsimile Telephone: (608) 262-8086
Hours of Service: 8:00 am - 4:30 pm M-F
Browse Graphic:
Browse Graphic File Name: MM55_sk_wtbl_map.pdf
Browse Graphic File Description: PDF file of Miscellaneous Map 55; Water-Table Elevation Map of Sauk County, Wisconsin
Browse Graphic File Type: PDF
Native Data Set Environment: ESRI ArcInfo coverages
Cross Reference:
Citation Information:
Originator: Madeline Gotkowitz and Kurt Zeiler
Publication Date: 2002
Title: Water-Table Elevation Map of Sauk County, Wisconsin; hard copy
Geospatial Data Presentation Form: map
Series Information:
Series Name: Miscellaneous Map
Issue Identification: 55
Publication Information:
Publication Place: Madison, Wisconsin
Publisher: Wisconsin Geological and Natural History Survey
Data Quality Information
Section Index
Attribute Accuracy:
Attribute Accuracy Report:
Proof plots of the water-table contours were visually inspected by the authors for attribute accuracy.
No systematic quality control of data entry of Wisconsin Unique Well Numbers, depth to water or unit of well completion was performed; errors discovered during processing and use of the data were corrected.
For groundwater and surface-water divides, no user-defined attributes are present; all table attributes are ArcInfo internal coverage attributes and are assumed to be correctly calculated by ArcInfo.
Logical Consistency Report:
Arc-node topology is present for the water-table contours (sk_wtlines.aat). The ArcInfo command NODEERRORS with the DANGLE option was used to identify the locations of dangling nodes in the line coverages; these were displayed with the arcs and errors were corrected until no dangling nodes were left within the boundaries of Sauk County.
Point topology is present for the wells (sk_wtwells.pat).
Polygon topology is present for the approximate groundwater divides (sk_wtdiv.pat)
Arc-node topology is present for the major surface-water divides (sk_swdiv.aat).
Completeness Report:
Water-table elevation contours represent author's interpretation of water table based on static water levels reported in wells, surface-water elevations, and topography. Only well records from wells that could be spatially located with a high degree of confidence and wells with reported depth to water that were deemed to be representative of the water table (based on well construction depths and open intervals) were used.
The depiction of the groundwater divides is approximate and is provided with this map for educational purposes; the divides illustrate the concept of groundwater flow being toward discharge areas and surface-water features in the lowlands of the county. The elevation and location of the water table is difficult to identify with certainty along ridges in the uplands of Sauk County because there are few wells, wells that are present are completed with long open intervals, and surface streams tend to be seasonally present (ephemeral) and therefore not necessarily representative of the water table at that location.
Surface-water divides were delineated for the following major streams within Sauk County: Baraboo River, Honey Creek, Otter Creek, Dell Creek, and Leech Creek. There are other surface-water divides in Sauk County that are not depicted here.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report:
Water-table contours judged to be accurate at 1:100,000 scale; not intended for site-specific use.
Location of wells on well constructor's reports was determined using a variety of sources, including aerial photographs, plat maps, and subdivision maps. Well constructor's reports were only used if the location of the well could be determined with a reasonable degree of confidence. Wells were assigned an accuracy rating of 1 to 5; 5 is most accurate. These accuracy values are found in the "XY_ACCURACY" attribute of the sk_wtwells.pat table. The Quantitative Horizontal Positional Attribute Accuracy Assessment in this metadata applies to sk_wtwells.pat.
The groundwater divides are approximate and are presented for educational purposes. The degree of accuracy in their depiction is greater in areas where more water-table elevation control points (wells and perennial surface-water features) are nearby. Polygons of variable width are used to represent the divides to convey the approximate nature of locating the divide, which is more difficult to identify in some locations, and to illustrate that the exact location of the divide may change temporally.
The cell size of the input DEM is 30 meters, the actual horizontal positional error of the surface-water divides is likely to be greater, especially in areas of low topographic relief.
Quantitative Horizontal Positional Accuracy Assessment:
Horizontal Positional Accuracy Value: 0
Horizontal Positional Accuracy Explanation: Data entry error
Quantitative Horizontal Positional Accuracy Assessment:
Horizontal Positional Accuracy Value: 1
Horizontal Positional Accuracy Explanation: within 1000 feet
Quantitative Horizontal Positional Accuracy Assessment:
Horizontal Positional Accuracy Value: 2
Horizontal Positional Accuracy Explanation: within 500 feet
Quantitative Horizontal Positional Accuracy Assessment:
Horizontal Positional Accuracy Value: 3
Horizontal Positional Accuracy Explanation: within 250 feet
Quantitative Horizontal Positional Accuracy Assessment:
Horizontal Positional Accuracy Value: 4
Horizontal Positional Accuracy Explanation: within 150 feet
Quantitative Horizontal Positional Accuracy Assessment:
Horizontal Positional Accuracy Value: 5
Horizontal Positional Accuracy Explanation: within 100 feet
Vertical Positional Accuracy:
Vertical Positional Accuracy Report:
Land-surface elevations for most of the wells and at surface-water locations were estimated using the NED (National Elevation Dataset) digital elevation model (DEM), and the maximum allowable vertical error (as root mean squared error) for Level 2 DEMs (from which the NED was for the most part derived) is one-half the contour interval of the source 7.5-minute topographic map. Therefore, the estimated land-surface elevation of each well is assumed to be within one-half of the contour interval of the 7.5-minute topographic map on which it is located. Errors in the horizontal location of each well provide an additional source of error in the land surface elevation estimate. Groundwater elevation at wells calculated by subtracting depth to water recorded on well constructor's reports from DEM estimate of land-surface elevation. Groundwater elevation was taken as equal to surface-water elevation at the location of surface-water bodies where surface water was judged to not be artificially maintained. Surface-water elevation was equated to land-surface elevation estimated from the DEM.
Lineage:
Source Information:
Source Citation:
Citation Information:
Originator: Wisconsin Department of Natural Resources (WiDNR)
Publication Date: 1992
Title: WDNR 1:100,000-Scale Hydrography (open water, line features)
Geospatial Data Presentation Form: Map
Publication Information:
Publication Place: Madison, WI
Publisher: WiDNR
Other Citation Details: USGS information about Digital Line Graphs is available through the USGS National Spatial Data Infrastructure (NSDI) Clearinghouse.
Larger Work Citation:
Citation Information:
Originator: Wisconsin DNR
Publication Date: 1998
Title: GEODISC3.0
Publication Information:
Publication Place: Madison, WI
Publisher: Wisconsin DNR
Other Citation Details: For information about DNR/GEO datasharing CDs, refer to: <http://www.dnr.state.wi.us/org/at/et/geo/data/geo_cds.html>
Source Scale Denominator: 100000
Type of Source Media: CD-ROM
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 1979
Beginning Time: Unknown
Ending Date: 1989
Ending Time: Unknown
Source Currentness Reference: Publication dates of the source 1:100,000-scale USGS topographic maps
Source Citation Abbreviation: WDNR 1:100K Line Hydro
Source Contribution: Locations of surface-water features
Source Information:
Source Citation:
Citation Information:
Originator: U.S. Geological Survey (USGS), EROS Data Center
Publication Date: 1999
Publication Time: Unknown
Title: National Elevation Dataset
Edition: 1
Geospatial Data Presentation Form: raster digital data
Publication Information:
Publication Place: Sioux Falls, SD
Publisher: U.S. Geological Survey
Online Linkage: http://gisdata.usgs.net/NED/
Source Scale Denominator: 24000
Type of Source Media: online
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 2/1/1999
Beginning Time: Unknown
Ending Date: Unknown
Ending Time: Unknown
Source Currentness Reference: publication date
Source Citation Abbreviation: NED
Source Contribution:
Approximate land-surface elevations at well locations and surface-water features that are representative of the water table. Elevation of land surface to check that approximate water-table elevations are not above land surface where no surface-water features are present.
Source Information:
Source Citation:
Citation Information:
Originator: U.S. Geological Survey (USGS), Wisconsin Department of Natural Resources (WDNR)
Publication Date: 1992
Title: Digital Orthophotography of Sauk County, Wisconsin, 1992
Geospatial Data Presentation Form: remote-sensing image
Other Citation Details:
1992 National Aerial Photography Program (NAPP) gray-scale digital orthophotography (DOP), compressed with MrSID and projected by the Wisconsin Department of Natural Resources to the 1991 adjustment to the North American Datum of 1983, Wisconsin Transverse Mercator projection (WTM83/91).
Source Scale Denominator: 40000
Type of Source Media: CD-ROM
Source Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: 1992
Time of Day: Unknown
Source Currentness Reference: ground condition
Source Citation Abbreviation: SaukDOP 1992
Source Contribution: Imagery used to locate wells corresponding to well constructor's reports.
Source Information:
Source Citation:
Citation Information:
Originator: U.S. Geological Survey (USGS)
Publication Date: 19980228
Title: Digital Raster Graphic (WiDNR WTM83/91 Version)
Geospatial Data Presentation Form: map
Publication Information:
Publication Place: Madison, WI
Publisher: Wisconsin Department of Natural Resources (WiDNR)
Online Linkage: <URL:http://www.dnr.state.wi.us/org/at/et/geo/data/drg.html>
Source Scale Denominator: 24000
Type of Source Media: online
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 1944
Beginning Time: Unknown
Ending Date: 1994
Ending Time: Unknown
Source Currentness Reference: ground condition
Source Citation Abbreviation: DRG
Source Contribution: Imagery used to locate wells corresponding to well constructor's reports.
Process Step:
Process Description:
1. Water wells were located in ArcView 3.2 using Department of Natural Resources (WDNR) well constructor's reports (WCRs) with base information from the Sauk County digital orthophoto (1992) and digital raster graphics of USGS 7.5-minute topographic maps.
2. For these wells, land-surface elevations were estimated using a digital elevation model. Static depths to water reported on WCRs were subtracted from land-surface elevation estimates to estimate static water-level elevations in wells. Wells with water levels judged not representative of the water table were removed from the data set. Basis for removing water levels included uncertainty in x,y location of well, well open interval too deep to provide reasonable estimate of water table, well open interval not in uppermost aquifer, or estimated water-table elevation not consistent with near-by surface-water elevation.
3. The aquifer each well is completed in was determined from information on the WCR, including depth and type of geologic material encountered, casing depth and total depth of well.
4. Well locations and estimated water-table elevations were plotted to hard copy with digital raster graphics of USGS 7.5-minute topographic maps at 1:50,000 scale and water-table elevation contours were drawn on these hard copies.
5. Water-table elevation contours were digitized on a Altek32 digitizing tablet.
6. The land-surface elevation at each vertex of the contours was estimated from a digital elevation model and compared to the elevation value of the contour; contours that exceeded land-surface elevation in areas not covered by surface-water features were edited on-screen to be below land-surface elevation. Contours were also edited to produce smoother curves.
7. The groundwater divides were identified by on-screen drawing of narrow polygons that connect the areas of highest water-table elevation, "ridges" at the top of the water-table surface, that separate major stream systems in Sauk County. The shapes were refined by drawing on paper copies of the map printed at 1:100,000, and then correcting the on-screen image.
8. The surface-water basins for each major stream were delineated using the USGS GIS Weasel (available <http://wwwbrr.cr.usgs.gov/weasel/>) version 0.3.102 with the NED by interactively selecting the points where the major streams enter the Wisconsin River. The separate basin coverages were merged using the GET command in ArcEdit within ArcInfo Workstation, and duplicate arcs were removed using the CLEAN command. For improved cartographic output, the arcs were smoothed using the GENERALIZE command in ArcEdit with a distance tolerance of 100 m and the BENDSIMPLIFY option. Arcs outside the boundaries of Sauk County were removed using the CLIP command in ArcInfo.
Source Used Citation Abbreviation: WDNR 1:100K Line Hydro
Source Used Citation Abbreviation: NED
Source Used Citation Abbreviation: SaukDOP 1992
Source Used Citation Abbreviation: DRG
Process Date: 2002
Process Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Wisconsin Geological and Natural History Survey
Contact Position: Information Manager
Contact Address:
Address Type: mailing and physical address
Address: 3817 Mineral Point Road
City: Madison
State or Province: Wisconsin
Postal Code: 53705-5100
Country: USA
Contact Voice Telephone: (608) 263-7386
Contact Facsimile Telephone: (608) 262-8086
Hours of Service: 8:00 am - 4:30 pm M-F
Cloud Cover: 0
Spatial Data Organization Information
Section Index
Direct Spatial Reference Method: Vector
Point and Vector Object Information:
SDTS Terms Description:
SDTS Point and Vector Object Type: String
Point and Vector Object Count: 194
SDTS Terms Description:
SDTS Point and Vector Object Type: Point
Point and Vector Object Count: 1100
SDTS Terms Description:
SDTS Point and Vector Object Type: G-polygon
Point and Vector Object Count: 4
SDTS Terms Description:
SDTS Point and Vector Object Type: String
Point and Vector Object Count: 10
Spatial Reference Information
Section Index
Horizontal Coordinate System Definition:
Planar:
Map Projection:
Map Projection Name: Transverse Mercator
Transverse Mercator:
Scale Factor at Central Meridian: 0.9996
Longitude of Central Meridian: -90
Latitude of Projection Origin: 0
False Easting: 520000
False Northing: -4480000
Planar Coordinate Information:
Planar Coordinate Encoding Method: Coordinate Pair
Coordinate Representation:
Abscissa Resolution: 5.863
Ordinate Resolution: 5.863
Planar Distance Units: m
Geodetic Model:
Horizontal Datum Name: North American Datum of 1983, 1991 adjustment
Ellipsoid Name: Geodetic Reference System 80
Semi-major Axis: 6378137
Denominator of Flattening Ratio: 298.257
Vertical Coordinate System Definition:
Altitude System Definition:
Altitude Datum Name: North American Vertical Datum of 1988
Altitude Resolution:
40 feet in most areas for water-table contours; 10 feet in the Wisconsin River valley below Sauk City; 20 feet in some parts of the map (based on contour interval). For wells, the resolution is 1 foot.
Altitude Distance Units: feet
Altitude Encoding Method: Attribute values
Entity and Attribute Information
Section Index
Detailed Description:
Entity Type:
Entity Type Label: sk_wtline.aat
Entity Type Definition: Arc attribute table of coverage; contours of approximate elevation of the water table in Sauk County, Wisconsin
Entity Type Definition Source: ESRI; WGNHS
Attribute:
Attribute Label: CNTR_VAL
Attribute Definition: Approximate elevation of the water table
Attribute Definition Source: WGNHS
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 700
Range Domain Maximum: 1400
Attribute Units of Measure: feet above mean sea level
Attribute:
Attribute Label: INFERRED
Attribute Definition: Describes whether the contour is inferred or not, i.e., if it is supported by well or stream data or inferred from topography.
Attribute Definition Source: WGNHS
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 0
Enumerated Domain Value Definition: contour is not inferred
Enumerated Domain Value Definition Source: WGNHS
Enumerated Domain:
Enumerated Domain Value: 1
Enumerated Domain Value Definition: the contour is inferred
Enumerated Domain Value Definition Source: WGNHS
Attribute:
Attribute Label: XTR_CNTR
Attribute Definition: Indicates whether this contour is supplemental, i.e., less than 40-foot contour interval.
Attribute Definition Source: WGNHS
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 0
Enumerated Domain Value Definition: Contour is not supplemental, i.e., on a 40-foot contour interval
Enumerated Domain Value Definition Source: WGNHS
Enumerated Domain:
Enumerated Domain Value: 1
Enumerated Domain Value Definition: Contour is supplemental, i.e., on a 10- or 20-foot contour interval
Enumerated Domain Value Definition Source: WGNHS
Detailed Description:
Entity Type:
Entity Type Label: sk_wtwells.pat
Entity Type Definition: Point attribute table of coverage; well location and aquifer type
Entity Type Definition Source: ESRI; WGNHS
Attribute:
Attribute Label: DTWTR_FT
Attribute Definition: Depth to water table from land
Attribute Definition Source: WGNHS
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Range Domain Maximum: 370
Attribute Units of Measure: feet
Attribute Measurement Resolution: 1
Attribute:
Attribute Label: FT_TO_ROCK
Attribute Definition:
Depth to bedrock from land surface; if the attribute HITS_ROCK equals "<", the value of FT_TO_ROCK is the total depth of the well, and indicates that the depth to bedrock must be greater than the total well depth.
Attribute Definition Source: WGNHS
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Range Domain Maximum: 385
Attribute Units of Measure: feet
Attribute Measurement Resolution: 1
Attribute:
Attribute Label: GWELEV_FT
Attribute Definition: Elevation of water table calculated from estimated land-surface elevation and depth to water table
Attribute Definition Source: WGNHS
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 686
Range Domain Maximum: 1469
Attribute Units of Measure: feet above mean sea level
Attribute Measurement Resolution: 1
Attribute:
Attribute Label: HITS_ROCK
Attribute Definition: Boolean value determining whether the well encountered bedrock.
Attribute Definition Source: WGNHS
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: '='
Enumerated Domain Value Definition: Indicates that the well encounters bedrock
Enumerated Domain Value Definition Source: WGNHS
Enumerated Domain:
Enumerated Domain Value: '>'
Enumerated Domain Value Definition: Indicates that the well does not encounter bedrock, and that the depth to bedrock must then be greater than the total depth of the well.
Enumerated Domain Value Definition Source: WGNHS
Attribute:
Attribute Label: INFO_TYPE
Attribute Definition: Type of record that provided information
Attribute Definition Source: WGNHS
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: wcr
Enumerated Domain Value Definition: Wisconsin Department of Natural Resources well constructor's record
Enumerated Domain Value Definition Source: WGNHS
Attribute:
Attribute Label: UNIT_COMP
Attribute Definition: Type of geologic unit in which the well is completed.
Attribute Definition Source: WGNHS
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: U
Enumerated Domain Value Definition: unlithified material
Enumerated Domain Value Definition Source: WGNHS
Enumerated Domain:
Enumerated Domain Value: S
Enumerated Domain Value Definition: sandstone or dolomite bedrock
Enumerated Domain Value Definition Source: WGNHS
Enumerated Domain:
Enumerated Domain Value: Q
Enumerated Domain Value Definition: crystalline bedrock; predominantly Baraboo quartzite
Enumerated Domain Value Definition Source: WGNHS
Attribute:
Attribute Label: WGNHS_NUM
Attribute Definition: WGNHS Geobase Well ID
Attribute Definition Source: WGNHS
Attribute Domain Values:
Unrepresentable Domain: WGNHS identifiers for wells in the Geobase database
Attribute:
Attribute Label: WUWN
Attribute Definition: Wisconsin Department of Natural Resources Unique Well Number
Attribute Definition Source: Wisconsin Department of Natural Resources
Attribute Domain Values:
Unrepresentable Domain: unique alphanumeric code assigned to a well by the Wisconsin Department of Natural Resources
Attribute:
Attribute Label: XY_ACCURACY
Attribute Definition: Horizontal location accuracy code
Attribute Definition Source: WGNHS
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 0
Enumerated Domain Value Definition: data entry error
Enumerated Domain Value Definition Source: WGNHS
Enumerated Domain:
Enumerated Domain Value: 1
Enumerated Domain Value Definition: within 1000 feet
Enumerated Domain Value Definition Source: WGNHS
Enumerated Domain:
Enumerated Domain Value: 2
Enumerated Domain Value Definition: within 500 feet
Enumerated Domain Value Definition Source: WGNHS
Enumerated Domain:
Enumerated Domain Value: 3
Enumerated Domain Value Definition: within 250 feet
Enumerated Domain Value Definition Source: WGNHS
Enumerated Domain:
Enumerated Domain Value: 4
Enumerated Domain Value Definition: within 150 feet
Enumerated Domain Value Definition Source: WGNHS
Enumerated Domain:
Enumerated Domain Value: 5
Enumerated Domain Value Definition: within 50 feet
Enumerated Domain Value Definition Source: WGNHS
Detailed Description:
Entity Type:
Entity Type Label: sk_wtdiv.pat
Entity Type Definition: Polygon attribute table of coverage; areas where groundwater flow diverges. No attributes are attached other than internal ArcInfo coverage attributes.
Entity Type Definition Source: ESRI; WGNHS
Detailed Description:
Entity Type:
Entity Type Label: sk_swdiv.aat
Entity Type Definition: Arc attribute table of coverage; approximate locations of major surface-water divides in Sauk County, Wisconsin. No attributes are attached other than internal ArcInfo coverage attributes.
Entity Type Definition Source: ESRI; WGNHS
Overview Description:
Entity and Attribute Overview:
sk_wtline.aat -- Water-table elevation is described by arcs representing lines of equal elevation of the water table and is assigned attributes of the elevation in feet above sea level.
Sk_wtwells.pat -- Wells are located by point attributes and characterized according to the aquifer in which they are completed.
Sk_gwdiv.aat -- Groundwater divides are described by polygons representing areas where groundwater flow diverges. Only major groundwater divides are shown. No attributes are attached other than internal ArcInfo coverage attributes.
Sk_swdiv.aat -- Approximate surface-water divide locations in and around Sauk County, Wisconsin. No attributes are attached other than internal ArcInfo coverage attributes.
Entity and Attribute Detail Citation: For detailed attribute information, contact Wisconsin Geological and Natural History Survey.
Distribution Information
Section Index
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: Wisconsin Geological and Natural History Survey
Contact Position: Information Manager
Contact Address:
Address Type: mailing and physical address
Address: 3817 Mineral Point Road
City: Madison
State or Province: WI
Postal Code: 53705-5100
Country: USA
Contact Voice Telephone: (608) 263-7386
Contact Facsimile Telephone: (608) 262-8086
Hours of Service: 8:00 am - 4:30 pm M-F
Distribution Liability:
THESE DATA ARE PROVIDED BY THE WISCONSIN GEOLOGICAL AND NATURAL HISTORY SURVEY (WGNHS) ON AN "AS IS" BASIS. WGNHS WILL NOT BE LIABLE FOR ANY DAMAGES OF ANY KIND ARISING FROM THE USE OF THESE DATA, INCLUDING, BUT NOT LIMITED TO DIRECT, INDIRECT, PUNITIVE, AND CONSEQUENTIAL. WGNHS MAKES NO WARRANTIES ON THESE DATA, EXPRESS, IMPLIED, STATUTORY, OR IN ANY OTHER PROVISION OF ANY AGREEMENT OR COMMUNICATION, AND SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: ARCE
Format Version Number: 8.2
Format Specification: ArcInfo Interchange (.e00) format
File Decompression Technique:
Use one of the following methods:
1. "IMPORT" command within ArcInfo Workstation
2.. "Import from Interchange File" within ArcToolbox
3. ArcExplorer Version 1.1 Import Utility (import71.exe) available at http://www.esri.com/company/free.html
Digital Transfer Option:
Offline Option:
Offline Media: CD-ROM
Recording Capacity:
Recording Density: 700
Recording Density Units: megabytes (MB)
Recording Format: ISO 9660
Fees: $25.00 per CD
Ordering Instructions: Contact WGNHS Map Sales by telephone at (608) 263-7389 or fax at (608) 262-8086.
Standard Order Process:
Non-digital Form: Water-Table Elevation Map of Sauk County, Wisconsin; WGNHS Miscellaneous Map 55
Fees: $15.00, plot-on-demand
Ordering Instructions: Contact WGNHS Map Sales by telephone at (608) 263-7389 or fax at (608) 262-8086.
Metadata Reference Information
Section Index
Metadata Date: 2/13/2003
Metadata Review Date: 8/11/2003
Metadata Future Review Date:
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Wisconsin Geological and Natural History Survey
Contact Position: Information Manager
Contact Address:
Address Type: mailing and physical address
Address: 3817 Mineral Point Road
City: Madison
State or Province: WI
Postal Code: 53705-5100
Country: USA
Contact Voice Telephone: (608) 263-7386
Contact Facsimile Telephone: (608) 262-8086
Hours of Service: 8:00 am - 4:30 pm M-F
Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Time Convention: local time
Metadata Access Constraints:
These data are available to anyone; however, the data are copyrighted and are licensed for use, not sold. Users must accept the Digital Data Sharing Agreement of the Wisconsin Geological and Natural History Survey.
Metadata Use Constraints:
THESE DATA ARE PROVIDED BY THE WISCONSIN GEOLOGICAL AND NATURAL HISTORY SURVEY (WGNHS) ON AN "AS IS" BASIS. WGNHS WILL NOT BE LIABLE FOR ANY DAMAGES OF ANY KIND ARISING FROM THE USE OF THESE DATA, INCLUDING, BUT NOT LIMITED TO DIRECT, INDIRECT, PUNITIVE, AND CONSEQUENTIAL. WGNHS MAKES NO WARRANTIES ON THESE DATA, EXPRESS, IMPLIED, STATUTORY, OR IN ANY OTHER PROVISION OF ANY AGREEMENT OR COMMUNICATION, AND SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
SMMS Metadata report generated Friday, 22/August/2003