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Quality of Surface Water Before Implementation of a Flood-Control Project in Chaska, Minnesota (open access)

Quality of Surface Water Before Implementation of a Flood-Control Project in Chaska, Minnesota

From introduction: This report describes the quality of the waters and the potential water-quality impacts of redesigning a levee that surrounds the city of Chaska, in Carver County, Minn.
Date: December 1981
Creator: Tornes, L. H.
Object Type: Report
System: The UNT Digital Library
Limnological and Geochemical Survey of Williams Lake Hubbard County, Minnesota (open access)

Limnological and Geochemical Survey of Williams Lake Hubbard County, Minnesota

Purpose and scope: The purpose of this report is to describe and make preliminary interpretations of: (1) Limnological characteristics of Williams Lake, based on physical, chemical, and biological data collected in 6 days in 6 different months in 1979; (2) chemical quality of ground water near the lake, based on samples collected during the summer of 1979; and (3) mineralogy of the lake sediment cores obtained in February 1978. The period of study extended from March, when the lake was covered by ice, through the period of open water, to December, when it was again covered by ice.
Date: September 1981
Creator: LaBaugh, J. W.; Groschen, G. E. & Winter, T. C.
Object Type: Report
System: The UNT Digital Library
Designation of Principal Water-Supply Aquifers in Minnesota (open access)

Designation of Principal Water-Supply Aquifers in Minnesota

From introduction: The purpose of this report is to describe the general quality and quantity of water in the principal water-supply aquifers in Minnesota.
Date: August 1981
Creator: Adolphson, D. G.; Ruhl, J. F. & Wolf, R. J.
Object Type: Report
System: The UNT Digital Library

[Photograph 2012.201.B1030.0695]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Richard Lee, center, of Oklahoma City, discusses mission priorities with American Lutheran Church president David W. Preus, left, and the Rev. Arden Dorn of Lawrence, Kan. Lee and Dorn are reps of the church's central district who met in Minneapolis with the church's council."
Date: July 11, 1981
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
Hydrogeologic Setting of the Glacial Lake Agassiz Peatlands, Northern Minnesota (open access)

Hydrogeologic Setting of the Glacial Lake Agassiz Peatlands, Northern Minnesota

Abstract: Seven test holes drilled in the Glacial Lake Agassiz Peatlands indicate that the thickness of surficial materials along a north-south traverse parallel to Minnesota Highway 71 ranges from 163 feet near Blackduck, Minnesota to 57 feet about 3 miles south of Upper Red Lake. Lenses of sand and gravel occur immediately above bedrock on the Itasca moraine and are interbedded with lake clay and till under the peatlands. Vertical head gradients measured in a piezometer nest near Blackduck on the moraine are downward, indicative of recharge to the regional ground-water-flow system. Vertical head gradients are upward in a piezometer nest on a sand beach ridge in the peatlands 12 miles north of Upper Red Lake. Numerical sectional models indicate that this discharge probably comes from local flow systems recharge from ground-water mounds located under large raised bogs.
Date: July 1981
Creator: Siegel, D. I.
Object Type: Report
System: The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Milbank NTMS Quadrangle (Minnesota, North Dakota, South Dakota) (open access)

Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Milbank NTMS Quadrangle (Minnesota, North Dakota, South Dakota)

"Results of a reconnaissance geochemical survey are reported for the Milbank Quadrangle, Minnesota; North Dakota; South Dakota. Statistical data and areal distributions for uranium and uranium-related variables are presented for 662 groundwater and 319 stream sediment samples. Also included is a brief discussion on location and geologic setting." (from Abstract)
Date: June 15, 1981
Creator: National Uranium Resource Evaluation Program
Object Type: Report
System: The UNT Digital Library
Water Quality of Alignment, Farquar, and Long Lakes in Apple Valley, Minnesota (open access)

Water Quality of Alignment, Farquar, and Long Lakes in Apple Valley, Minnesota

Abstract: Alimagnet, Farquar, and Long Lakes, in Apple Valley, Minnesota, were sampled from 1973-79 to determine their physical and chemical characteristics. A storm-sewer inlet to Alimagnet Lake was also sampled during two storms in 1978. The 1976-77 drought caused a more noticeable effect on the quality of the lakes than any other factor. Chloride concentrations were 10 to 15 milligrams per liter before the drought, but increased 2 to 4 times during the drought. Dissolved solids reacted similarly . Dissolved oxygen and pH were governed mainly by biological activity. In February 1977, dissolved-oxygen concentration was less than 0.5 milligrams per liter in the three lakes. Ratios between mean total nitrogen and mean total phosphorus ranged from 22:1 to 26:1. Tropic-state indices indicate that the lakes are eutrophic. Blue-green algae dominated the phytoplankton populations. Storms sampled at a storm-sewer inlet to Alimagnet Lake showed higher concentrations pf chromium, copper, nickel, and zinc than of lead, arsenic, cadmium, and mercury. Total phosphorus for the September 1978 storm had a concentration of 1.7 milligrams per liter, which means that approximately 29 pounds entered the lake during the 5.5-hour sampling period.
Date: June 1981
Creator: Have, Mark R.; Payne, Gregory A. & Ayers, Mark A.
Object Type: Report
System: The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Watertown NTMS Quadrangle, South Dakota and Minnesota (open access)

Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Watertown NTMS Quadrangle, South Dakota and Minnesota

"Results of a reconnaissance geochemical survey of the Watertown Quadrangle are reported. Field and laboratory data are presented for 711 groundwater and 603 stream sediment samples. Statistical and areal distributions of uranium and possible uranium-related variables are displayed. a generalized geologic map of the survey is provided and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed."
Date: May 29, 1981
Creator: National Uranium Resource Evaluation Program
Object Type: Report
System: The UNT Digital Library

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Date: May 29, 1981
Creator: National Uranium Resource Evaluation Program
Object Type: Dataset
System: The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Brainerd Quadrangle, Minnesota: Final Report, Volume 2 (open access)

Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Brainerd Quadrangle, Minnesota: Final Report, Volume 2

The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Brainerd quadrangle, Minnesota. This volume contains data maps of the results.
Date: April 1981
Creator: Aero Service (Firm)
Object Type: Report
System: The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Duluth Quadrangle, Minnesota: Final Report, Volume 1 (open access)

Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Duluth Quadrangle, Minnesota: Final Report, Volume 1

A report regarding an airborne gamma-ray spectrometer and magnetometer survey for the Duluth Quadrangle, Minnesota.
Date: April 1981
Creator: Aero Service (Firm)
Object Type: Report
System: The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Duluth Quadrangle, Minnesota: Final Report, Volume 2 (open access)

Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Duluth Quadrangle, Minnesota: Final Report, Volume 2

The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Duluth quadrangle, Minnesota. This volume contains data maps of the results.
Date: April 1981
Creator: Aero Service (Firm)
Object Type: Report
System: The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Hibbing Quadrangle, Minnesota: Final Report, Volume 1 (open access)

Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Hibbing Quadrangle, Minnesota: Final Report, Volume 1

The following report presents results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Hibbing quadrangle, Minnesota.
Date: April 1981
Creator: Aero Service (Firm)
Object Type: Report
System: The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Hibbing Quadrangle, Minnesota: Final Report, Volume 2 (open access)

Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Hibbing Quadrangle, Minnesota: Final Report, Volume 2

The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Hibbing quadrangle, Minnesota. This volume contains data maps of the results.
Date: April 1981
Creator: Aero Service (Firm)
Object Type: Report
System: The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, International Falls Quadrangle, Minnesota: Final Report, Volume 1 (open access)

Airborne Gamma-Ray Spectrometer and Magnetometer Survey, International Falls Quadrangle, Minnesota: Final Report, Volume 1

The following report presents results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the International Falls quadrangle, Minnesota.
Date: April 1981
Creator: Aero Service (Firm)
Object Type: Report
System: The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, International Falls Quadrangle, Minnesota: Final Report, Volume 2 (open access)

Airborne Gamma-Ray Spectrometer and Magnetometer Survey, International Falls Quadrangle, Minnesota: Final Report, Volume 2

The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the International Falls quadrangle, Minnesota. This volume contains data maps of the results.
Date: April 1981
Creator: Aero Service (Firm)
Object Type: Report
System: The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Quetico Quadrangle, Minnesota: Final Report, Volume 1 (open access)

Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Quetico Quadrangle, Minnesota: Final Report, Volume 1

The following report presents results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Quetico quadrangle, Minnesota.
Date: April 1981
Creator: Aero Service (Firm)
Object Type: Report
System: The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Quetico Quadrangle, Minnesota: Final Report, Volume 2 (open access)

Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Quetico Quadrangle, Minnesota: Final Report, Volume 2

The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Quetico quadrangle, Minnesota. This volume contains data maps of the results.
Date: April 1981
Creator: Aero Service (Firm)
Object Type: Report
System: The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Roseau Quadrangle, Minnesota: Final Report, Volume 1 (open access)

Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Roseau Quadrangle, Minnesota: Final Report, Volume 1

A report regarding an airborne gamma-ray spectrometer and magnetometer survey of the Roseau Quadrangle, Minnesota
Date: April 1981
Creator: Aero Service (Firm)
Object Type: Report
System: The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Roseau Quadrangle, Minnesota: Final Report, Volume 2 (open access)

Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Roseau Quadrangle, Minnesota: Final Report, Volume 2

The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Roseau quadrangle, Minnesota. This volume contains data maps of the results.
Date: April 1981
Creator: Aero Service (Firm)
Object Type: Report
System: The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Saint Paul Quadrangle, Minnesota: Final Report (open access)

Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Saint Paul Quadrangle, Minnesota: Final Report

A report regarding an airborne gamma-ray spectrometer and magnetometer survey in the Saint Paul Quadrangle, Minnesota.
Date: April 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Saint Paul Quadrangle, Minnesota: Final Report, Volume 2 (open access)

Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Saint Paul Quadrangle, Minnesota: Final Report, Volume 2

The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Saint Paul quadrangle, Minnesota. This volume contains data maps of the results.
Date: April 1981
Creator: Aero Service (Firm)
Object Type: Report
System: The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Sioux Falls Quadrangle, South Dakota, Iowa, Minnesota: Final Report, Volume 1 (open access)

Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Sioux Falls Quadrangle, South Dakota, Iowa, Minnesota: Final Report, Volume 1

Report documenting results of an airborne high-sensitivity gamma-ray spectrometer and magnetometer survey of the Sioux Falls quadrangle in South Dakota, Iowa, and Minnesota, including data acquisition methods, a summary of data and outline of data presentation, area geology, and interpretation of results.
Date: April 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Sioux Falls Quadrangle, South Dakota, Iowa, Minnesota: Final Report, Volume 2 (open access)

Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Sioux Falls Quadrangle, South Dakota, Iowa, Minnesota: Final Report, Volume 2

Second report documenting results of an airborne high-sensitivity gamma-ray spectrometer and magnetometer survey of the Sioux Falls quadrangle in South Dakota, Iowa, and Minnesota, including histograms and multi parameter profiles, with anomaly maps and flight path maps.
Date: April 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library