Metadata: County Well Index (CWI) Well Locations, Renville County, 2002

- none available -

County Well Index (CWI) Well Locations, Renville County, 2002

This page last updated: 2007
Metadata created using Minnesota Geographic Metadata Guidelines

Metadata Summary

*Originator*	Minnesota Geological Survey
*Abstract*	This dataset consists of the locations of wells drilled within Renville County. The County Well Index (CWI) is a database that contains information about wells drilled throughout Minnesota. In this case, a subset of the locations was used to look at the geological descriptions of these wells. The original CWI file was downloaded from the Minnesota Geological Survey (MGS) in 2002.
*Browse Graphic*	none available
*Time Period of Content Date*	2002
*Currentness Reference*	2002
*Access Constraints*
*Use Constraints*	Acknowledgement of the Minnesota Geological Survey is appreciated for products derived from these data.
*Distributor Organization*	Minnesota Geological Survey
*Ordering Instructions*	Go to the website of the Minnesota Geological Survey, http://www.geo.umn.edu/mgs, to find the link describing CWI and to download the current version of CWI. To download this subset of the CWI data, which was used for this project and downloaded in 2002, go to http://www.dnr.state.mn.us/lands_minerals/aggregatemaps.html, where it is part of the renvdata.zip file under Renville County.
*Online Linkage*	none available

Full Metadata
County Well Index (CWI) Well Locations, Le Sueur County, 2001

Go to Section:
1. Identification Information
2. Data Quality Information
3. Spatial Data Organization Information
4. Spatial Reference Information
5. Entity and Attribute Information
6. Distribution Information
7. Metadata Reference Information


Section 1	Identification Information		Top of page
*Originator*	Minnesota Geological Survey
*Title*	County Well Index (CWI) Well Locations, Renville County, 2002
*Abstract*	This dataset consists of the locations of wells drilled within Renville County. The County Well Index (CWI) is a database that contains information about wells drilled throughout Minnesota. In this case, a subset of the locations was used to look at the geological descriptions of these wells. The origianl CWI file was downloaded from the Minnesota Geological Survey (MGS) in 2002.
*Purpose*	This dataset contains the locations of the wells that were used for this study. Approximately 531 of the 539 wells contained geological descriptions that were used in this study.
*Time Period of Content Date*	2002
*Currentness Reference*	2002
*Progress*	Complete
*Maintenance and Update Frequency*	The CWI database maintained by MGS is updated quarterly. This subset was downloaded in 2002 and provides part of the background information that was used in developing the aggregate resource mapping units in Renville County.
*Spatial Extent of Data*	Renville County, Minnesota
*Bounding Coordinates*	-95.47 -94.49 44.91 44.44
*Place Keywords*	Renville County, Minnesota
*Theme Keywords*	CWI, wells, county well index, geological descriptions
*Theme Keyword Thesaurus*
*Access Constraints*
*Use Constraints*	Acknowledgement of the Minnesota Geological Survey is appreciated for products derived from these data.
*Contact Person Information*	Aggregate Resource Mapping Program (Geologist or GIS Specialist) Minnesota Department of Natural Resources, Division of Lands and Minerals 500 Lafayette Road, Box 45 St. Paul, MN 55155-4045 Phone: 651-259-5959 FAX: 651-296-5939 E-mail: AggregateMap@dnr.state.mn.us
*Browse Graphic*	none available
*Browse Graphic File Description*
*Associated Data Sets*	The County Aggregate Mapping Program dataset for Renville County is included in the file renvdata.zip from the MN DNR Aggregate Mapping web page: http://www.dnr.state.mn.us/lands_minerals/aggregatemaps.html The dataset is also available as aggregate resource data layers stored at drive:\data\resource on the CD (where 'drive' is the CD reader or writer drive on the PC). The data layers include data on sand and gravel potential, crushed stone potential, field observations, rock piles, and test pit quality data. The CWI wells data are included in a simplified version (i.e., a number of fields have been dropped from the file since these fields were not used for this project), since they are part of the background information that was used in developing the mapping units for this project. For the full CWI dataset, contact the Minnesota Geological Survey.

Section 2	Data Quality Information	Top of full metadata	Top of page
*Attribute Accuracy*
*Logical Consistency*
*Completeness*	The locational accuracy of these points varies. Some of the points were field checked down to the meter, while others are located to the centroid of a 40-acre parcel, a 10-acre parcel, ... Download CWI from the Minnesota Geological Survey for a complete and up-to-date version.
*Horizontal Positional Accuracy*
*Vertical Positional Accuracy*	Not applicable.
*Lineage*	The geological descriptions associated with the well locations were used to make interpretations and test interpretations about the geology, aggregate resources, and glacial and bedrock history of the area.
*Source Scale Denominator*

Section 3	Spatial Data Organization Information	Top of full metadata	Top of page
*Native Data Set Environment*	ArcGIS 8.3, Arc/INFO 8.0.2, and Arcview 3.3 from ESRI
*Geographic Reference for Tabular Data*
*Spatial Object Type*	Point
*Vendor Specific Object Types*	Point
*Tiling Scheme*	Renville County

Section 4	Spatial Reference Information	Top of full metadata	Top of page
*Horizontal Coordinate Scheme*	UTM
*Ellipsoid*	GRS80
*Horizontal Datum*	NAD83
*Horizontal Units*	Meters
*Distance Resolution*
*Altitude Datum*	Not applicable
*Depth Datum*	Not applicable
*UTM Zone Number*	15E

Section 5	Entity and Attribute Information	Top of full metadata	Top of page
*Entity and Attribute Overview*	These points represent the locations of individual wells drilled throughout Renville County.
*Entity and Attribute Detailed Citation*	cwiwells_att.htm Attribute values can be found in the table cwiwells_att.htm. If this table hotlink cannot be found by your browser, you can find this file stored in the same location (i.e., drive:\docs) as this metadata record. An additional table, cwistrat.dbf, is a subset of the STRAT table of the CWI database. The cwiwells shapefile relates to the cwistrat.dbf table as a one-to-many relate on the relateid field. The additional table contains only those fields that were considered directly applicable to developing aggregate resource mapping units for this project. The descriptions were made by different drillers and geologists, with the information ranging from very good and complete to very poor and vague. Descriptions can vary from well to well, due to different individuals completing the well logging. As an example of the detail found in these descriptions: detailed descriptions often cover 5 to 10 feet of thickness per glacial material type or bedrock type. Less detailed descriptions may say 0-240 feet glacial drift and 240-360 feet sandstone. The definition of the fields found in cwistrat.dbf are included in the cwiwells_att.htm file.

Section 6	Distribution Information	Top of full metadata	Top of page
*Publisher*	Minnesota Geological Survey
*Publication Date*	Periodically revised
*Contact Person Information*	Minnesota Geological Survey 2642 University Avenue West St. Paul, MN 55114-1057 Phone: 612-627-4782 FAX: 612-627-4778 E-mail: mgs@umn.edu
*Distributor's Data Set Identifier*	CWI
*Distribution Liability*
*Transfer Format Name*
*Transfer Format Version Number*
*Transfer Size*
*Ordering Instructions*	Go to the website of the Minnesota Geological Survey, http://www.geo.umn.edu/mgs, to find the link describing CWI and to download the current version of CWI. To download this subset of the CWI data, which was used for this project and downloaded in 2001, go to http://www.dnr.state.mn.us/lands_minerals/aggregatemaps.html, where it is part of the renvdata.zip file under Renville County.
*Online Linkage*	none available

Section 7	Metadata Reference Information	Top of full metadata	Top of page
*Metadata Date*	2007
*Contact Person Information*	Aggregate Resource Mapping Program (Geologist or GIS Specialist) Minnesota Department of Natural Resources, Division of Lands and Minerals 500 Lafayette Road, Box 45 St. Paul, MN 55155-4045 Phone: 651-259-5959 FAX: 651-296-5939 E-mail: AggregateMap@dnr.state.mn.us
*Metadata Standard Name*	Minnesota Geographic Metadata Guidelines
*Metadata Standard Version*	1.2
*Metadata Standard Online Linkage*	http://www.lmic.state.mn.us/gc/stds/metadata.htm

This page last updated: 2007