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Slug tests data, analysis, and results at wells near the North Shore of Lake Superior, Minnesota

Dates

Publication Date
Start Date
2021-10-26
End Date
2021-10-27

Citation

Cowdery, T.K., 2023, Slug tests data, analysis, and results at wells near the North Shore of Lake Superior, Minnesota: U.S. Geological Survey data release, https://doi.org/10.5066/P9XNTKVY.

Summary

This dataset contains the original data, analysis data, and a results synopsis of 12 slug tests performed in 7 wells completed in unconfined fractured bedrock near the North Shore of Lake Superior in Minnesota. Aquifers tested include extrusive and intrusive volcanic rocks and slate. Estimated hydraulic conductivity range from 10.2 to 2x10-6 feet/day. Mean and median hydraulic conductivity are 3.7 and 1.6, respectively. The highest and lowest hydraulic conductivities were in slate and fractured lava, respectively. Compressed air and traditional displacement-tube methods were employed. Water levels were measured with barometrically compensated (11 tests) and absolute pressure transducers (1 test) and recorded with data loggers. Test [...]

Contacts

Point of Contact :
Timothy K Cowdery
Process Contact :
Timothy K Cowdery
Originator :
Timothy K Cowdery
Metadata Contact :
Timothy K Cowdery
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
USGS Mission Area :
Water Resources
SDC Data Owner :
Upper Midwest Water Science Center

Attached Files

Click on title to download individual files attached to this item.

SlugTests.zip
“All slug-test data and analysis files”
4.16 MB application/zip

Purpose

The slug-test data were collected to estimate the hydraulic conductivity of surficial bedrock aquifers along the North Shore of Lake Superior in Minnesota. Such estimates are sparse. The hydraulic conductivity estimates produced by the U.S. Geological Survey as part of a project to produce a collection of groundwater data in the United States part of the Lake Superior Basin that is useful for groundwater modeling. The estimated hydraulic conductivities presented in this data release are appropriate as a starting estimate for groundwater modeling and as one example of the range of possible hydraulic conductivities in surficial fractured bedrock in area where the tests were performed.

Rights

Public.

Map

Spatial Services

ScienceBase WMS

Communities

  • USGS Data Release Products
  • Upper Midwest Water Science Center

Associated Items

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Provenance

Data source
Input directly
Original data and analysis from a USGS water-science center project.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9XNTKVY

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