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Gregory C. Delzer, Ph.D. (Former Employee)

Science and Products

Water Resources of the Energy Development Area of the Williston Basin in Eastern Montana, Western North Dakota, and Northwest South Dakota Water Resources of the Energy Development Area of the Williston Basin in Eastern Montana, Western North Dakota, and Northwest South Dakota

A set of comma-separated value tables containing data for streamflow, water quality, surface-water features, and produced waters in the energy development area of the Williston Basin in eastern Montana, western North Dakota, and northwest South Dakota.
By
Wyoming-Montana Water Science Center

Data to Estimate Water Use Associated with Continuous Oil and Gas Development, Williston Basin, United States, 1980-2017 (ver. 3.0, October 2022) Data to Estimate Water Use Associated with Continuous Oil and Gas Development, Williston Basin, United States, 1980-2017 (ver. 3.0, October 2022)

This U.S. Geological Survey (USGS) Data Release provides data to estimate water use associated with continuous oil and gas development in the Williston Basin during 1980-2017. Data included: Data records from the national hydraulic fracturing chemical registry, FracFocus, including the state, county, latitude and longitude of each well, and the year and volume of water used for hydraulic
By
Wyoming-Montana Water Science Center

Delineation of the hydrogeologic framework of the Big Sioux aquifer near Sioux Falls, South Dakota, using airborne electromagnetic data Delineation of the hydrogeologic framework of the Big Sioux aquifer near Sioux Falls, South Dakota, using airborne electromagnetic data

The U.S. Geological Survey, in cooperation with the City of Sioux Falls, South Dakota, began developing a groundwater-flow model of the Big Sioux aquifer in 2014 that will enable the City to make more informed water management decisions, such as delineation of areas of the greatest specific yield, which is crucial for locating municipal wells. Innovative tools are being evaluated as part...
By
Dakota Water Science Center
Resolve low-level flight system
Resolve low-level flight system
Resolve low-level flight system
Resolve low-level flight system

Resolve low-level flight system

Resolve low-level flight system

In this image, a helicopter towing a large, cylindrical sensor makes low-level flights as part of a USGS remote geophysical survey, which collects data about underground geology. The scientific system, called Resolve, is operated by CGG Canada Services, Ltd. 

By
Water Resources Mission Area, Dakota Water Science Center, Communications and Publishing
Resolve low-level flight system

Resolve low-level flight system

Resolve low-level flight system

In this image, a helicopter towing a large, cylindrical sensor makes low-level flights as part of a USGS remote geophysical survey, which collects data about underground geology. The scientific system, called Resolve, is operated by CGG Canada Services, Ltd. 

By
Water Resources Mission Area, Dakota Water Science Center, Communications and Publishing
Filter Total Items: 35

Research needs identified for potential effects of energy development activities on environmental resources of the Williston Basin, United States Research needs identified for potential effects of energy development activities on environmental resources of the Williston Basin, United States

Unconventional oil and gas development that uses horizontal drilling and hydraulic fracturing is rapidly changing the landscape and exponentially increasing oil production within the Williston Basin, especially in North Dakota and eastern Montana. The activities associated with unconventional oil and gas development are complex and wide reaching and include, in part, road and well-pad...
Authors
Gregory C. Delzer, Max Post van der Burg
By
Dakota Water Science Center

Potential effects of energy development on environmental resources of the Williston Basin in Montana, North Dakota, and South Dakota—Water resources Potential effects of energy development on environmental resources of the Williston Basin in Montana, North Dakota, and South Dakota—Water resources

The Williston Basin has been a leading oil and gas producing area for more than 50 years. While oil production initially peaked within the Williston Basin in the mid-1980s, production rapidly increased in the mid-2000s, largely because of improved horizontal (directional) drilling and hydraulic fracturing methods. In 2012, energy development associated with the Bakken Formation was...
Authors
Timothy T. Bartos, Steven K. Sando, Todd M. Preston, Gregory C. Delzer, Robert F. Lundgren, Rochelle A. Nustad, Rodney R. Caldwell, Zell E. Peterman, Bruce D. Smith, Kathleen M. Macek-Rowland, David A. Bender, Jill D. Frankforter, Joel M. Galloway
By
Water Resources Mission Area, Wyoming-Montana Water Science Center

Assessment of streamflow trends in the eastern Dakotas, water years 1960–2019 Assessment of streamflow trends in the eastern Dakotas, water years 1960–2019

Hydrologic extremes, whether periods of drought or flooding, are occurring more frequently with greater severity and can have substantial economic impacts. Along with flooding, the timing and volume of streamflow also is changing across the United States. The focus of this report is to characterize a unique trend in mean annual streamflow occurring in eastern North and South Dakota...
Authors
Parker A. Norton, Gregory C. Delzer, Joshua F. Valder, Wyatt S. Tatge, Karen R. Ryberg
By
Dakota Water Science Center

Estimates of water use associated with continuous oil and gas development in the Williston Basin, North Dakota and Montana, 2007–17 Estimates of water use associated with continuous oil and gas development in the Williston Basin, North Dakota and Montana, 2007–17

This study of water use associated with development of continuous oil and gas resources in the Williston Basin is intended to provide a preliminary model-based analysis of water use in major regions of production of continuous oil and gas resources in the United States. Direct, indirect, and ancillary water use associated with development of continuous oil and gas resources in the...
Authors
Ryan R. McShane, Theodore B. Barnhart, Joshua F. Valder, Seth S. Haines, Kathleen M. Macek-Rowland, Janet M. Carter, Gregory C. Delzer, Joanna N. Thamke
By
Water Resources Mission Area, Water Availability and Use Science Program, Wyoming-Montana Water Science Center

Analytical framework to estimate water use associated with continuous oil and gas development Analytical framework to estimate water use associated with continuous oil and gas development

An analytical framework was designed to estimate water use associated with continuous oil and gas (COG) development in support of the U.S. Geological Survey Water Availability and Use Science Program. This framework was developed to better understand the relation between the production of COG resources for energy and the amount of water needed to sustain this type of energy development...
Authors
Joshua F. Valder, Ryan R. McShane, Theodore B. Barnhart, Spencer L. Wheeling, Janet M. Carter, Kathleen M. Macek-Rowland, Gregory C. Delzer, Joanna N. Thamke
By
Dakota Water Science Center, Wyoming-Montana Water Science Center

Construction of a groundwater-flow model for the Big Sioux Aquifer using airborne electromagnetic methods, Sioux Falls, South Dakota Construction of a groundwater-flow model for the Big Sioux Aquifer using airborne electromagnetic methods, Sioux Falls, South Dakota

The city of Sioux Falls is the fastest growing community in South Dakota. In response to this continued growth and planning for future development, Sioux Falls requires a sustainable supply of municipal water. Planning and managing sustainable groundwater supplies requires a thorough understanding of local groundwater resources. The Big Sioux aquifer consists of glacial outwash sands and...
Authors
Joshua F. Valder, Gregory C. Delzer, Janet M. Carter, Bruce D. Smith, David V. Smith
By
Water Resources Mission Area, Dakota Water Science Center

Science and Products

Water Resources of the Energy Development Area of the Williston Basin in Eastern Montana, Western North Dakota, and Northwest South Dakota Water Resources of the Energy Development Area of the Williston Basin in Eastern Montana, Western North Dakota, and Northwest South Dakota

A set of comma-separated value tables containing data for streamflow, water quality, surface-water features, and produced waters in the energy development area of the Williston Basin in eastern Montana, western North Dakota, and northwest South Dakota.
By
Wyoming-Montana Water Science Center

Data to Estimate Water Use Associated with Continuous Oil and Gas Development, Williston Basin, United States, 1980-2017 (ver. 3.0, October 2022) Data to Estimate Water Use Associated with Continuous Oil and Gas Development, Williston Basin, United States, 1980-2017 (ver. 3.0, October 2022)

This U.S. Geological Survey (USGS) Data Release provides data to estimate water use associated with continuous oil and gas development in the Williston Basin during 1980-2017. Data included: Data records from the national hydraulic fracturing chemical registry, FracFocus, including the state, county, latitude and longitude of each well, and the year and volume of water used for hydraulic
By
Wyoming-Montana Water Science Center

Delineation of the hydrogeologic framework of the Big Sioux aquifer near Sioux Falls, South Dakota, using airborne electromagnetic data Delineation of the hydrogeologic framework of the Big Sioux aquifer near Sioux Falls, South Dakota, using airborne electromagnetic data

The U.S. Geological Survey, in cooperation with the City of Sioux Falls, South Dakota, began developing a groundwater-flow model of the Big Sioux aquifer in 2014 that will enable the City to make more informed water management decisions, such as delineation of areas of the greatest specific yield, which is crucial for locating municipal wells. Innovative tools are being evaluated as part...
By
Dakota Water Science Center
Resolve low-level flight system
Resolve low-level flight system
Resolve low-level flight system
Resolve low-level flight system

Resolve low-level flight system

Resolve low-level flight system

In this image, a helicopter towing a large, cylindrical sensor makes low-level flights as part of a USGS remote geophysical survey, which collects data about underground geology. The scientific system, called Resolve, is operated by CGG Canada Services, Ltd. 

By
Water Resources Mission Area, Dakota Water Science Center, Communications and Publishing
Resolve low-level flight system

Resolve low-level flight system

Resolve low-level flight system

In this image, a helicopter towing a large, cylindrical sensor makes low-level flights as part of a USGS remote geophysical survey, which collects data about underground geology. The scientific system, called Resolve, is operated by CGG Canada Services, Ltd. 

By
Water Resources Mission Area, Dakota Water Science Center, Communications and Publishing
Filter Total Items: 35

Research needs identified for potential effects of energy development activities on environmental resources of the Williston Basin, United States Research needs identified for potential effects of energy development activities on environmental resources of the Williston Basin, United States

Unconventional oil and gas development that uses horizontal drilling and hydraulic fracturing is rapidly changing the landscape and exponentially increasing oil production within the Williston Basin, especially in North Dakota and eastern Montana. The activities associated with unconventional oil and gas development are complex and wide reaching and include, in part, road and well-pad...
Authors
Gregory C. Delzer, Max Post van der Burg
By
Dakota Water Science Center

Potential effects of energy development on environmental resources of the Williston Basin in Montana, North Dakota, and South Dakota—Water resources Potential effects of energy development on environmental resources of the Williston Basin in Montana, North Dakota, and South Dakota—Water resources

The Williston Basin has been a leading oil and gas producing area for more than 50 years. While oil production initially peaked within the Williston Basin in the mid-1980s, production rapidly increased in the mid-2000s, largely because of improved horizontal (directional) drilling and hydraulic fracturing methods. In 2012, energy development associated with the Bakken Formation was...
Authors
Timothy T. Bartos, Steven K. Sando, Todd M. Preston, Gregory C. Delzer, Robert F. Lundgren, Rochelle A. Nustad, Rodney R. Caldwell, Zell E. Peterman, Bruce D. Smith, Kathleen M. Macek-Rowland, David A. Bender, Jill D. Frankforter, Joel M. Galloway
By
Water Resources Mission Area, Wyoming-Montana Water Science Center

Assessment of streamflow trends in the eastern Dakotas, water years 1960–2019 Assessment of streamflow trends in the eastern Dakotas, water years 1960–2019

Hydrologic extremes, whether periods of drought or flooding, are occurring more frequently with greater severity and can have substantial economic impacts. Along with flooding, the timing and volume of streamflow also is changing across the United States. The focus of this report is to characterize a unique trend in mean annual streamflow occurring in eastern North and South Dakota...
Authors
Parker A. Norton, Gregory C. Delzer, Joshua F. Valder, Wyatt S. Tatge, Karen R. Ryberg
By
Dakota Water Science Center

Estimates of water use associated with continuous oil and gas development in the Williston Basin, North Dakota and Montana, 2007–17 Estimates of water use associated with continuous oil and gas development in the Williston Basin, North Dakota and Montana, 2007–17

This study of water use associated with development of continuous oil and gas resources in the Williston Basin is intended to provide a preliminary model-based analysis of water use in major regions of production of continuous oil and gas resources in the United States. Direct, indirect, and ancillary water use associated with development of continuous oil and gas resources in the...
Authors
Ryan R. McShane, Theodore B. Barnhart, Joshua F. Valder, Seth S. Haines, Kathleen M. Macek-Rowland, Janet M. Carter, Gregory C. Delzer, Joanna N. Thamke
By
Water Resources Mission Area, Water Availability and Use Science Program, Wyoming-Montana Water Science Center

Analytical framework to estimate water use associated with continuous oil and gas development Analytical framework to estimate water use associated with continuous oil and gas development

An analytical framework was designed to estimate water use associated with continuous oil and gas (COG) development in support of the U.S. Geological Survey Water Availability and Use Science Program. This framework was developed to better understand the relation between the production of COG resources for energy and the amount of water needed to sustain this type of energy development...
Authors
Joshua F. Valder, Ryan R. McShane, Theodore B. Barnhart, Spencer L. Wheeling, Janet M. Carter, Kathleen M. Macek-Rowland, Gregory C. Delzer, Joanna N. Thamke
By
Dakota Water Science Center, Wyoming-Montana Water Science Center

Construction of a groundwater-flow model for the Big Sioux Aquifer using airborne electromagnetic methods, Sioux Falls, South Dakota Construction of a groundwater-flow model for the Big Sioux Aquifer using airborne electromagnetic methods, Sioux Falls, South Dakota

The city of Sioux Falls is the fastest growing community in South Dakota. In response to this continued growth and planning for future development, Sioux Falls requires a sustainable supply of municipal water. Planning and managing sustainable groundwater supplies requires a thorough understanding of local groundwater resources. The Big Sioux aquifer consists of glacial outwash sands and...
Authors
Joshua F. Valder, Gregory C. Delzer, Janet M. Carter, Bruce D. Smith, David V. Smith
By
Water Resources Mission Area, Dakota Water Science Center
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