County Geologic Atlas Program


Todd County Geologic Atlas Part B

GIS metadata

County Geologic Atlas Series C-18


METADATA SUMMARY
Originator
Minnesota Department of Natural Resourses, Waters Division, County Atlas and Regional Assessment Program
Abstract
ArcGIS shapefiles depicting a variety of characteristics of the groundwater system of Todd County, Minnesota
Time Period of Content Date
2007-2010
Currentness Reference
Publication date
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 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.
Browse Graphic File Name
None Available
Distributer Contact Person
phone (651) 259-5693 or (651) 259-5700, See also Metadata Reference Section.
Ordering Instructions
Proceed to ENTITY AND ATTRIBUTE INFORMATION (below)
Online Linkage
None Available

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

Section 1

Identification Information

Originator Minnesota Department of Natural Resources, Division of Waters
Title Todd County Geologic Atlas, Part B
Minnesota Clearinghouse ID --
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.

Time Period of Content Date 2007-2010
Currentness Reference Publication date
Progress Complete
Maintenance and Update Frequency None planned
Spatial Extent of Data Todd County, Minnesota
West Bounding Coordinate -95.2 --
East Bounding Coordinate -94.6 --
North Bounding Coordinate 46.4 --
South Bounding Coordinate 45.8 --
Place Keywords Todd County, Minnesota
Theme Keywords buried sand aquifer, groundwater, water chemistry, residence time, wells, water table, pollution sensitivity, surficial sand aquifer
Theme Keyword Thesaurus --
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 See METADATA CONTACT PERSON (below)
Contact Organization "
Contact Person Position "
Contact Address "
Contact City "
Contact State or Province "
Contact Postal Code "
Contact Voice Phone "
Contact Fax Phone "
Contact E-mail Address "
Browse Graphic File Name --
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.The preceeding link is to a non-DNR site

Section 2

Data Quality Information

Attribute Accuracy --
Logical Consistency Data are topologically correct using ArcGIS 9.3
Completeness Complete
Horizontal Positional Accuracy NA
Vertical Positional Accuracy NA
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.
 

Source Scale Denominator 100,000

Section 3

Spatial Data Organization Information

Native Data Set Environment ArcGIS
Geographic Reference for Tabular Data --
Spatial Object Type Vector
Vendor Specific Object Types Point, Line, Polygon
Tiling Scheme Todd County

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Section 4

Spatial Reference Information

Horizontal Coordinate Scheme Universal Transverse Mercator (UTM)
Ellipsoid GRS 1980
Horizontal Datum NAD83
Horizontal Units Meters
Altitude Datum N.A.
Altitude Units N.A.
Depth Datum N.A.
Depth Units N.A.
Cell Width N.A.
Cell Height N.A.
UTM Zone Number 15
Coordinate Offsets or Adjustments None
Distance Resolution --

Section 5

Entity and Attribute Information

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
 

ArcGIS shapefiles are available.
 


Download zip file of all SHAPEFILES
(c18b_shape.zip 13.1 MB)

 
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.  
 
Metadata

 
indexpt Well data used by DNR staff to construct aquifer and related maps  
 
Metadata

 
Shapefiles used in Plate 7,
Distribution of the Surficial and Buried Sand Aquifers

 
sdthpy Modeled surficial sand aquifer thickness  
 
Metadata

 
aqthcnln Modeled aquifer thickness contours of the buried aquifers  
 
Metadata

 
aqdppy Modeled depth to the top of the buried aquifers  
 
Metadata

 
Shapefiles used in Plate 9,
Hydrogeology of the Surficial and Buried Sand Aquifers

 
gwelpy Modeled water table elevation  
 
Metadata

 
potsfcpy Modeled potentiometric surface of the buried aquifers  
 
Metadata

 
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  
 
Metadata

 
nrsfsnpy Sensitivity to pollution of the near-surface materials  
 
Metadata

 
Additional shapefile not shown on any plate

 
gwdppy Modeled water-table depth
 
 
 
Metadata

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Section 6

Distribution Information

Publisher Minnesota Department of Natural Resources, Waters Division
Publication Date 2010
Online Linkage --
Distributor Contact Person See METADATA CONTACT PERSON (below)
Distributor Organization "
Distributor Position "
Distributor Address "
Distributor City "
Distributor State or Province "
Distributor Postal Code "
Distributor Voice Phone "
Distributor Fax Phone "
Distributor
E-mail Address
"
Distributor's Data Set Identifier --
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.

Transfer Format Name Shapefile
Transfer Format Version Number
 
Transfer Size --
Ordering Instructions See ENTITY AND ATTRIBUTE INFORMATION (above)

Section 7

Metadata Reference Information

Metadata Date 2011
Metadata Contact Person GIS Specialist
Metadata Contact Organization Minnesota Department of Natural Resources, Waters Division
Metadata Contact Position GIS Specialist
Metadata Contact Address 500 Lafayette Road
Metadata Contact City St. Paul
Metadata Contact State or Province MN
Metadata Contact Postal Code 55155-4032
Metadata Contact Voice Phone (651) 259-5693 or (651) 259-5700
Metadata Contact Fax Phone (651) 296-0445
Metadata Contact
E-mail Address
 
Metadata Standard Name Minnesota Geographic Metadata Guidelines
Metadata Standard Version 1.0.4
Metadata Standard Online Linkage --


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