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This page last updated: 2011
Metadata created using Minnesota Geographic Metadata Guidelines
| Originator | Minnesota Department of Natural Resources, Water Division |
| Abstract | ArcGIS shapefiles depicting a variety of characteristics of the ground water system of Todd County, Minnesota. |
| Browse Graphic | none available |
| Time Period of Content Date | 2010 |
| Currentness Reference | Data collection and analysis by DNR staff during the period 2007-2010. |
| Access Constraints | None. |
| Use Constraints | Users may wish to verify critical information; sources include both the references here and information on file in the offices of the Minnesota Geological Survey and the Minnesota Department of Natural Resources. Every effort has been made to ensure the interpretation shown conforms to sound geologic and cartographic principles. This map should not be used to establish legal title, boundaries, or locations of improvements. |
| Distributor Organization | Minnesota Department of Natural Resources, Waters Division |
| Ordering Instructions | Download zipfile from Minnesota Department of Natural Resources ftp site, as identified in online linkage. Zipfile contains README file, shapefiles associated with each Map Plate, and metadata for each shapefile. |
| Online Linkage | Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" in Section 6 of this metadata. |
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 Department of Natural Resources, Water Division | |||
| Title | Todd County Geologic Atlas - Part B | |||
| Abstract | ArcGIS shapefiles depicting a variety of characteristics of the ground water system of Todd County, Minnesota. | |||
| Purpose | Geographic information systems (GIS) layers were created to cartographically depict and spatially analyze data used in the production of the Todd County Geologic Atlas, Part B. A County Geologic Atlas (CGA) is a systematic study of a county's geologic and groundwater resources. Geologic studies include both glacial deposits and bedrock units. Groundwater studies include the distribution of surficial and buried sand aquifers, hydrogeology of the surficial and buried aquifers, and sensitivity to pollution of the buried aquifers and the near-surface materials. |
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| Time Period of Content Date | 2010 | |||
| Currentness Reference | Data collection and analysis by DNR staff during the period 2007-2010. | |||
| Progress | Complete | |||
| Maintenance and Update Frequency | None Planned | |||
| Spatial Extent of Data | Todd County, Minnesota | |||
| Bounding Coordinates | -95.2 -94.6 46.4 45.8 |
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| Place Keywords | Todd County, Minnesota | |||
| Theme Keywords | geoscientificInformation, buried sand aquifer, groundwater, water chemistry, residence time, wells, water table, pollution sensitivity, surficial sand aquifer | |||
| Theme Keyword Thesaurus | ISO 19115 Topic Category | |||
| Access Constraints | None. | |||
| Use Constraints | Users may wish to verify critical information; sources include both the references here and information on file in the offices of the Minnesota Geological Survey and the Minnesota Department of Natural Resources. Every effort has been made to ensure the interpretation shown conforms to sound geologic and cartographic principles. This map should not be used to establish legal title, boundaries, or locations of improvements. | |||
| Contact Person Information | GIS Specialist, Ground Water Mapping Unit,
Minnesota Department of Natural Resources, Waters Division 500 Lafayette Road St. Paul, MN 55155 Phone: 651-259-5693 or 651-259-5700 FAX: 651-296-0445 E-mail: none available | |||
| Browse Graphic | none available | |||
| Browse Graphic File Description | ||||
| Associated Data Sets | Todd County Geologic Atlas, Part A, County Geologic Atlas Series C-18, published by the Minnesota Geological Survey, 2007. More information and downloadable data for Part A available on the MGS ftp site http://www.mngs.umn.edu/county_atlas/countyatlas.htm |
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| Section 2 | Data Quality Information | Top of full metadata | Top of page | |
| Attribute Accuracy | See individual metadata records | |||
| Logical Consistency | Data are topologically correct using ArcGIS 9.3 | |||
| Completeness | Complete | |||
| Horizontal Positional Accuracy | Not available | |||
| Vertical Positional Accuracy | Not applicable | |||
| Lineage | Review of available data: Investigations begin with a review of existing information, such as earlier geologic maps, soil maps, hydrologic reports, and information provided by well drillers. Minnesota Geological Survey staff review and interpret driller's logs, and enter the data into the County Well Index (CWI), an interactive data base of water-well information. Collection of data from the field: Field studies are conducted to measure static water level elevations in wells and chemistry of selected wells. These studies, combined with pre-existing data, are used to create models of water-table and bedrock hydrogeology (elevation, potentiometric surface, capacity, flow direction), and sensitivity of groundwater system to pollution. Creation of GIS layers: Using a variety of techniques, data are converted into ArcGIS shapefiles, grids, or feature classes for cartographic display and spatial analysis. Metadata for individual layers contain more detailed lineage information. |
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| Source Scale Denominator | ||||
| Section 3 | Spatial Data Organization Information | Top of full metadata | Top of page | |
| Native Data Set Environment | ||||
| Geographic Reference for Tabular Data | ||||
| Spatial Object Type | ||||
| Vendor Specific Object Types | ||||
| Tiling Scheme | ||||
| Section 4 | Spatial Reference Information | Top of full metadata | Top of page | |
| Horizontal Coordinate Scheme | Universal Transverse Mercator | |||
| Ellipsoid | GRS80 | |||
| Horizontal Datum | NAD83 | |||
| Horizontal Units | meters | |||
| Distance Resolution | ||||
| UTM Zone Number | 15 | |||
| Section 5 | Entity and Attribute Information | Top of full metadata | Top of page | |
| Entity and Attribute Overview | The Todd County Geologic Atlas, Part B consists of 10 separate GIS data layers divided into four plates: Plate 7 - Distribution of the Surficial and Buried Sand Aquifers Plate 8 - Hydrogeologic Cross Sections Plate 9 - Hydrogeology of the Surficial and Buried Sand Aquifers Plate 10 - Pollution Sensitivity of the Buried Sand Aquifers and the Near-Surface Materials Shapefiles used in each plate include the following: Shapefiles used in more than one plate: chempt - Wells sampled by DNR staff for chemistry. Also includes historical data from wells sampled by MPCA staff. indexpt - Well data used by DNR staff to construct aquifer and related maps Shapefiles used in Plate 7, Distribution of the Surficial and Buried Sand Aquifers sdthpy - Modeled surficial sand aquifer thickness aqthcnln - Modeled aquifer thickness contours of the buried aquifers aqdppy - Modeled depth to the top of the buried aquifers Shapefiles used in Plate 9, Hydrogeology of the Surficial and Buried Sand Aquifers gwelpy - Modeled water table elevation potsfcpy -Modeled potentiometric surface of the buried aquifers Shapefiles used in Plate 10, Pollution Sensitivity of the Buried Sand Aquifers and the Near-Surface Materials aqbdsnpy - Sensitivity to pollution of the buried aquifers nrsfsnpy - Sensitivity to pollution of the near-surface materials Additional shapefile not shown on any plate gwdppy -Modeled water-table depth |
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| Entity and Attribute Detailed Citation | See individual metadata for each shapefile (part of County Atlas zipfile download) for attribute listings for each shapefile. | |||
| Section 6 | Distribution Information | Top of full metadata | Top of page | |
| Publisher | Minnesota Department of Natural Resources, Division of Waters | |||
| Publication Date | 2010 | |||
| Contact Person Information | GIS Specialist, Ground Water Mapping Unit Minnesota Department of Natural Resources, Waters Division 500 Lafayette Road St. Paul, MN 55155 Phone: 651-259-5693 or 651-259-5700 FAX: 651-296-0445 E-mail: none available |
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| Distributor's Data Set Identifier | c18b | |||
| Distribution Liability | This map was prepared from publicly available information only. Every reasonable effort has been made to ensure the accuracy of the factual data on which this map is based. However, the Department of Natural Resources does not warrant the accuracy, completeness, or any implied uses of these data. Users may wish to verify critical information; sources include both the references here and information on file in the offices of the Minnesota Geological Survey and the Department of Natural Resources. Every effort has been made to ensure the interpretation shown conforms to sound geologic and cartographic principles. This map should not be used to establish legal title, boundaries, or locations of improvements. |
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| Transfer Format Name | ||||
| Transfer Format Version Number | ||||
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| Ordering Instructions | Download zipfile from Minnesota Department of Natural Resources ftp site, as identified in online linkage. Zipfile contains README file, shapefiles associated with each Map Plate, and metadata for each shapefile. |
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| Online Linkage | Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" above. | |||
| Section 7 | Metadata Reference Information | Top of full metadata | Top of page | |
| Metadata Date | 2011 | |||
| Contact Person Information | GIS Specialist, Ground Water Mapping Unit,
Minnesota Department of Natural Resources, Waters Division 500 Lafayette Road St. Paul, MN 55155 Phone: 651-259-5693 or 651-259-5700 FAX: 651-296-0445 E-mail: none available |
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| Metadata Standard Name | Minnesota Geographic Metadata Guidelines (MGMG) | |||
| Metadata Standard Version | 1.04 | |||
| Metadata Standard Online Linkage | http://www.mngeo.state.mn.us/committee/standards/mgmg/metadata.htm | |||
This page last updated: 2011