Potentiometric surfaces
Go to Section:- Overview
- Data Quality
- Data Organization
- Coordinate System
- Attributes
- Distribution - Get Data
- Metadata Reference
Section 1: Overview
Originator:Minnesota Department of Natural Resources
Title:
Potentiometric surfaces
Abstract:
Estimated potentiometric surface elevations of the buried aquifers in Dodge County, Minnesota.
Purpose:
Dodge County Groundwater Atlas, Part B
Time Period of Content Date:
Currentness Reference:
CWI data were downloaded in 2018
Progress:
Complete
Maintenance and Update Frequency:
None Planned
Spatial Extent of Data:
Dodge County, Minnesota
Bounding Coordinates:
-93.046
-92.678
44.197
43.847
Place Keywords:
Dodge County, Minnesota
Theme Keywords:
potentiometric surface elevations, buried aquifer
Theme Keyword Thesaurus:
None
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:
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:
None available
Section 2: Data Quality
Attribute Accuracy:
1:100,000
Logical Consistency:
Data are topologically correct using ArcGIS Pro 3.1.2
Completeness:
Complete
Horizontal Positional Accuracy:
Lineage:
These files were made with water level information from two general sources: driller's logs from the County Well Index (CWI) database managed by the Minnesota Department of Health and the Minnesota Geological Survey with verified locations, and measurements by DNR staff in conjunction with well sampling for this atlas project. The driller's log data represent a data set that was collected over a period of several decades and spans seasonal and multi-year climatic trends of wet and dry conditions. Where the dataset included both CWI driller's log information and water levels collected by DNR staff, the DNR data were used.
Static water elevation data from CWI and DNR project data as described above for each particular aquifer were posted on individual maps. These data were contoured with the Topo to Raster tool (no drainage enforcement) to produce an elevation raster per aquifer unit. The analysis mask was set to the extent of the buried aquifer.
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
Vertical Datum:
Vertical Units:
Depth Datum:
Depth Units:
Section 5: Attributes
Overview:
Detailed Citation:
Table Detail:
dodge_potentiometric_surfacesField Name | Valid Values | Definition | Definition Source |
---|
AQ_SYSTEM | - | Individual aquifers were grouped and treated as an aquifer system where they shared similar overlying geology and water levels. | |
ELEVATION | - | Modeled potentiometric surface elevation of the buried aquifers in feet. | |
Section 6: Distribution
Publisher:
Minnesota Department of Natural Resources, Ecological and Water Resources Division
Publication Date:
09/16/2024
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:
Distribution Liability:
These data were prepared from publicly available information only. Every reasonable effort has been made to ensure the accuracy of the factual data on which these files are 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 Department of Natural Resources.
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:
09/16/2024
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