Hydraulic conductivity and transmissivity estimated from specific capacity tests in wells completed in glacial materials in the Washburn/Great Divide Unit of the Chequamegon-Nicolet National Forest, Wisconsin
Metadata also available as
Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator: Wisconsin Geological and Natural History Survey (WGNHS)
- Publication_Date: 20181228
- Title:
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Hydraulic conductivity and transmissivity estimated from specific capacity tests in wells completed in glacial materials in the Washburn/Great Divide Unit of the Chequamegon-Nicolet National Forest, Wisconsin
- Geospatial_Data_Presentation_Form: vector digital data
- Description:
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- Abstract:
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This dataset consists of point data for each glacial well analyzed using TGUESS. Each well has attributes for the specific capacity measurement, in gallons per minute per foot (gpm/ft); the log of the estimated hydraulic conductivity in ft/day; and the log of the estimated transmissivity in ft2/day. TGUESS estimates hydraulic conductivity and transmissivity from specific capacity tests conducted by well drillers. This data set contains only wells completed in unconsolidated deposits with no obvious errors; wells with spurious data were eliminated. TGUESS produces estimates only. The methodology and results are documented in an accompanying summary report available from the Wisconsin Geological and Natural History Survey.
- Purpose:
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This dataset was produced as part of a project to assess groundwater resources across the Chequamegon-Nicolet National Forest. Groundwater is an important resource for the forest, and a more comprehensive understanding of this resource can help guide land management decisions.
Hydraulic conductivity and transmissivity were estimated from specific capacity tests conducted by well drillers using the TGUESS method. This data set contains only the estimates from wells completed in unconsolidated materials (glacial deposits). Taken as a whole, this dataset can guide interpretation of magnitude and spatial variation of hydraulic properties.
The datasets produced as part of this project are divided by location into four groups, corresponding to the four main National Forest Units: Medford, Nicolet, Park Falls, and Washburn/Great Divide. This dataset is located in the Washburn/Great Divide Unit.
- Time_Period_of_Content:
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- Time_Period_Information:
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- Single_Date/Time:
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- Calendar_Date: 20181228
- Currentness_Reference: publication date
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: None planned
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -91.669045
- East_Bounding_Coordinate: -89.782563
- North_Bounding_Coordinate: 46.913493
- South_Bounding_Coordinate: 44.614523
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: None
- Theme_Keyword: Washburn/Great Divide Unit
- Theme_Keyword: Ashland County
- Theme_Keyword: Bayfield County
- Theme_Keyword: Sawyer County
- Theme_Keyword: geology
- Theme_Keyword: geologic
- Theme_Keyword: hydrogeology
- Theme_Keyword: hydraulic conductivity
- Theme_Keyword: glacial
- Theme_Keyword: Wisconsin
- Place:
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- Place_Keyword_Thesaurus: None
- Place_Keyword: Chequamegon-Nicolet National Forest
- Place_Keyword: Washburn/Great Divide Unit
- Place_Keyword: Ashland County
- Place_Keyword: Bayfield County
- Place_Keyword: Sawyer County
- Place_Keyword: Wisconsin
- Access_Constraints: None
- Use_Constraints:
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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:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: Wisconsin Geological and Natural History Survey (WGNHS)
- Contact_Position: Information Manager
- Contact_Address:
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- Address_Type: unknown
- Address: 3817 Mineral Point Rd
- City: Madison
- State_or_Province: Wisconsin
- Postal_Code: 53705-5100
- Country: USA
- Contact_Electronic_Mail_Address: gis@wgnhs.uwex.edu
- Data_Set_Credit:
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This project was funded by the U.S. Forest Service. The data analysis was completed by the Wisconsin Geological and Natural History Survey (WGNHS) in 2011–2012.
- Native_Data_Set_Environment: Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.0.8321
- Data_Quality_Information:
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- Completeness_Report:
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This dataset provides the estimated hydraulic conductivity and transmissivity based on well construction reports of varying quality. Specific capacity reports commonly contain numerous errors and spurious data. Hydraulic property estimates are only as good as the specific capacity data reported by well drillers.
- Lineage:
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- Source_Information:
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- Type_of_Source_Media: None
- Source_Contribution:
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This dataset consists of points showing the hydraulic properties estimated from specific capacity tests in glacial wells conducted by well drillers for the Washburn/Great Divide Unit of the Chequamegon-Nicolet National Forest in Wisconsin. The methodology and results are documented in an accompanying summary report available from WGNHS.
- Spatial_Data_Organization_Information:
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- Direct_Spatial_Reference_Method: Vector
- Point_and_Vector_Object_Information:
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- SDTS_Terms_Description:
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- SDTS_Point_and_Vector_Object_Type: Entity point
- Point_and_Vector_Object_Count: 3969
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Geographic:
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- Latitude_Resolution: 8.983152841195215e-09
- Longitude_Resolution: 8.983152841195215e-09
- Geographic_Coordinate_Units: Decimal Degrees
- Geodetic_Model:
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- Horizontal_Datum_Name: D WGS 1984
- Ellipsoid_Name: WGS 1984
- Semi-major_Axis: 6378137.0
- Denominator_of_Flattening_Ratio: 298.257223563
- Entity_and_Attribute_Information:
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- Detailed_Description:
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- Entity_Type:
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- Entity_Type_Label: WGD_GlacTGUESS_WGNHS_2016
- Attribute:
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- Attribute_Label: OBJECTID_1
- Attribute_Definition: Internal feature number.
- Attribute_Definition_Source: Esri
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Sequential unique whole numbers that are automatically generated.
- Attribute:
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- Attribute_Label: Shape
- Attribute_Definition: Feature geometry.
- Attribute_Definition_Source: Esri
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Coordinates defining the features.
- Attribute:
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- Attribute_Label: WUWN
- Attribute:
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- Attribute_Label: LogK_ft_d
- Attribute:
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- Attribute_Label: LogT_ft2_d
- Attribute:
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- Attribute_Label: sc
- Overview_Description:
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- Entity_and_Attribute_Overview:
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WUWN: Wisconsin Unique Well Number - A 5-character alphanumeric unique identifier assigned to each well construction report submitted to the Wisconsin Department of Natural Resources.
sc: Specific Capacity of the Well - The specific capacity is the pumping rate divided by the drawdown, in gallons per minute per foot (gpm/ft).
LogK_ft_d: Logarithm of hydraulic conductivity - The logarithm of the estimated hydraulic conductivity in ft/day.
LogT_ft2_d: Logarithm of the transmissivity of the aquifer - The Logarithmic transformation of the transmissivity, defined as the aquifer hydraulic conductivity times the aquifer thickness, in ft2/day.
- Entity_and_Attribute_Detail_Citation:
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This dataset consists of points showing the hydraulic properties estimated from specific capacity tests in glacial wells conducted by well drillers for the Washburn/Great Divide Unit of the Chequamegon-Nicolet National Forest in Wisconsin. The methodology and results are documented in an accompanying summary report available from WGNHS.
- Metadata_Reference_Information:
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- Metadata_Date: 20190212
- Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- Metadata_Time_Convention: local time
Generated by mp version 2.9.12 on Tue Feb 12 14:55:34 2019