Pollution Sensitivity of the Bedrock Surface, Minnesota Hydrogeology Atlas series HG-01
This page last updated: 11/17/2015
Metadata created using Minnesota Geographic Metadata Guidelines

Go to Section:
1. Overview
2. Data Quality
3. Data Organization
4. Coordinate System
5. Attributes
6. Distribution - Get Data
7. Metadata Reference

Section 1 | Overview
Originator | Minnesota Department of Natural Resources, Ecological and Water Resources Division, County Geologic Atlas Program
Title | Pollution Sensitivity of the Bedrock Surface, Minnesota Hydrogeology Atlas series HG-01
Abstract | Pollution Sensitivity of the Bedrock Surface characterizes the relative rate of vertical travel time of a contaminant that moves conservatively with or within water from the land surface to the buried bedrock surface. Legacy maps from the County Geologic Atlas program were used and modified to reflect the bedrock surface since some legacy maps were created for specific units or aquifers. These data will be updated with every new atlas.
Purpose | Minnesota Hydrogeology Atlas was created to help manage and protect groundwater resources by providing accessible, statewide, hydrogeologic data. The Pollution Sensitivity of the Bedrock Surface was created in order to compile legacy data of bedrock pollution sensitivity. These legacy data were modified to reflect the bedrock surface in mapped areas across the state.
Time Period of Content Date |
Currentness Reference | Data were obtained from County Geologic Atlases completed between 1988 and date of publication.
Progress | Complete
Maintenance and Update Frequency | As needed
Spatial Extent of Data | Minnesota
Bounding Coordinates | -97.23 -89.53 49.37 43.5
Place Keywords | Anoka, Blue Earth, Carlton, Carver, Chisago, Dakota, Fillmore, Goodhue, McLeod, Mower, Nicollet, Olmsted, Pine, Ramsey, Renville, Rice, Scott, Sibley, Wabasha, Minnesota
Theme Keywords | pollution, sensitivity, pollution sensitivity, bedrock, bedrock surface, vertical travel time, groundwater, resources, geologic, hydrogeology
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 Department of Natural Resources. Every effort has been made to ensure the interpretation shown conforms to sound hydrogeologic and cartographic principles. This map should not be used to establish legal title, boundaries, or locations of improvements. The user is responsible for the results of any application of data other than its intended purposes.
Contact Person Information | Holly Johnson, GIS Specialist Minnesota Department of Natural Resources 500 Lafayette Rd St. Paul, MN 55155-4025 Phone: 651-259-5693 Email: holly.je.johnson@state.mn.us
Browse Graphic | Click to view a data sample.
Associated Data Sets | County Geologic Atlas, available at http://www.dnr.state.mn.us/waters/groundwater_section/mapping/status.html
Section 2 | Data Quality
Attribute Accuracy | 1:100,000
Logical Consistency |
Completeness | The bedrock surface pollution sensitivity is available for counties that previously contained this map layer, either if it was digitally available in the original County Geologic Atlases (CGAs), or it had been converted to digital format after publication. This product is updated when new atlases are completed; those data are integrated into this product. Areas that are not rated have either not been completed, not been digitized, are currently being updated, or their pollution sensitivity maps depict particular bedrock units or bedrock aquifers that do not form the top of bedrock surface.
Horizontal Positional Accuracy |
Lineage | CGAs with bedrock surface pollution sensitivity in spatial format were collected for those applicable counties. Updated travel time and rating terminology was applied to the original terminology in order to have consistency across the map layer. Individual maps were then unioned together into one spatial file.
Section 3 | Spatial Data Organization (not used in this metadata)
Section 4 | Coordinate System
Horizontal Coordinate Scheme | Universal Transverse Mercator
UTM Zone Number | 15
Horizontal Datum | NAD83
Horizontal Units | meters
Section 5 | Attributes
Overview | This data is a compilation of previously published CGA plates that represent the pollution sensitivity of the bedrock surface. The data were not spatial altered. Tabular data were added to reflect a common sensitivity rating system.
Detailed Citation |
Table Detail: |

bedrocksurface_pollutionsensitivity
Field Name | Valid Values | Definition | Definition Source
--- | --- | --- | ---
ATLAS | - | County Geologic Atlas Series Identifier |
COUN | - | County number |
CTY_NAME | - | County name |
ORG_RATING | - | Rating given in the original map and spatial data |
RATING | - | Sensitivity rating created to unify the compilation |

Section 6 | Distribution
Publisher | Minnesota Department of Natural Resources
Publication Date | 11/17/2015
Contact Person Information | Holly Johnson, GIS Specialist Minnesota Department of Natural Resources 500 Lafayette Rd St. Paul, MN 55155-4025 Phone: 651-259-5693 Email: holly.je.johnson@state.mn.us
Distributor's Data Set Identifier | HG-01
Distribution Liability | These data were compiled and generated in a geographic information system (GIS) from publicly available information only. Every reasonable effort has been made to ensure the accuracy of the factual data on which the individual interpretations were based. However, the DNR 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 the information on file in the offices of the Minnesota Geological Survey and the Minnesota Department of Natural Resources.
Ordering Instructions | All reports, maps, GIS data, and metadata are available on the Pollution Sensitivity of the Bedrock Surface page. Click I AGREE below to download the GIS data.
Online Linkage | I AGREE to the notice in "Distribution Liability" above. Clicking to agree will either begin the download process, link to a service, or provide more instructions. See "Ordering Instructions" above for details.
Section 7 | Metadata Reference
Metadata Date | 11/17/2015
Contact Person Information | Holly Johnson, GIS Specialist Minnesota Department of Natural Resources 500 Lafayette Rd St. Paul, MN 55155-4025 Phone: 651-259-5693 Email: holly.je.johnson@state.mn.us
Metadata Standard Name | Minnesota Geographic Metadata Guidelines
Metadata Standard Version | 1.2
Metadata Standard Online Linkage | http://www.mngeo.state.mn.us/committee/standards/mgmg/metadata.htm

This page last updated: 11/17/2015
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