Dennis William Risser (Former Employee)
Science and Products
Filter Total Items: 45
Aquifer tests and simulation of ground-water flow in Triassic sedimentary rocks near Colmar, Bucks and Montgomery Counties, Pennsylvania Aquifer tests and simulation of ground-water flow in Triassic sedimentary rocks near Colmar, Bucks and Montgomery Counties, Pennsylvania
This report presents the results of a study by the U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency to evaluate ground-water flow in Triassic sedimentary rocks near Colmar, in Bucks and Montgomery Counties, Pa. The study was conducted to help the U.S. Environmental Protection Agency evaluate remediation alternatives at the North Penn Area 5 Superfund...
Authors
Dennis W. Risser, Philip H. Bird
Case study for delineating a contributing area to a well in a fractured siliciclastic-bedrock aquifer near Lansdale, Pennsylvania Case study for delineating a contributing area to a well in a fractured siliciclastic-bedrock aquifer near Lansdale, Pennsylvania
A supply well used by the North Penn Water Authority near Lansdale, Pa., was selected as a case study for delineating a contributing area in a fractured siliciclastic-bedrock aquifer. The study emphasized the importance of refining the understanding of factors that control ground-water movement to the well by conducting (1) geophysical logging and flow measurements, (2) ground-water...
Authors
Gary J. Barton, Dennis W. Risser, Daniel G. Galeone, Daniel J. Goode
Hydrogeology and simulation of ground-water flow at the Gettysburg Elevator Plant Superfund Site, Adams County, Pennsylvania Hydrogeology and simulation of ground-water flow at the Gettysburg Elevator Plant Superfund Site, Adams County, Pennsylvania
Ground water in Triassic-age sedimentary fractured-rock aquifers in the area of Gettysburg, Pa., is used as drinking water and for industrial and commercial supply. In 1983, ground water at the Gettysburg Elevator Plant was found by the Pennsylvania Department of Environmental Resources to be contaminated with trichloroethene, 1,1,1-trichloroethane, and other synthetic organic compounds...
Authors
Dennis J. Low, Daniel J. Goode, Dennis W. Risser
Case study for delineating a contributing area to a water-supply well in a fractured crystalline-bedrock aquifer, Stewartstown, Pennsylvania Case study for delineating a contributing area to a water-supply well in a fractured crystalline-bedrock aquifer, Stewartstown, Pennsylvania
The Trouts Lane well field in Stewartstown, Pa., was selected as a case study for delineating a contributing area in a fractured crystalline-bedrock aquifer. The study emphasized the importance of refining the understanding of boundary conditions and major heterogeneities that affect ground-water movement to the supply well by conducting (1) fracture-trace mapping, (2) borehole logging...
Authors
Gary J. Barton, Dennis W. Risser, Daniel G. Galeone, Randall W. Conger
Hydrologic effects of the Pymatuning earthquake of September 25, 1998, in northwestern Pennsylvania Hydrologic effects of the Pymatuning earthquake of September 25, 1998, in northwestern Pennsylvania
Within hours after the Pymatuning earthquake of September 25, 1998, in northwestern Pennsylvania, local residents reported wells becoming dry, wells beginning to flow, and the formation of new springs. About 120 household-supply wells reportedly went dry within 3 months after the earthquake. About 80 of these wells were on a ridge between Jamestown and Greenville, where water-level...
Authors
Gary M. Fleeger, Daniel J. Goode, Theodore F. Buckwalter, Dennis W. Risser
Preliminary results from the investigation of the Pymatuning earthquake of September 25, 1998 Preliminary results from the investigation of the Pymatuning earthquake of September 25, 1998
The Pymatuning earthquake occurred on Friday, September 25, 1998, at 19:52:52 Universal Coordinated Time (UTC), or 3:52:52 p.m. EDT, near Jamestown, Pa., at the southern end of the Pymatuning Reservoir, which straddles the Ohio-Pennsylvania border. The National Earthquake Information Center (NEIC) determined that the event had a magnitude of 5.2 mbLg (a magnitude scale used to measure...
Authors
John Armbruster, Henry Barton, Paul Bodin, Theodore Buckwalter, Jon Cox, Edward Cranswick, James Dewey, Gary Fleeger, Margaret Hopper, Stephen Horton, Donald Hoskins, Deborah Kilb, Mark Meremonte, Ann Metzger, Dennis Risser, Leonardo Seeber, Kaye Shedlock, Katherine Stanley, Mitchell Withers, Madeleine Zirbes
Non-USGS Publications**
Heilweil, V.M., Grieve, P.L., Hynek, S.A., Brantley, S.L., Solomon, D.K, Risser, D.W., 2015, Stream measurements locate thermogenic methane fluxes in groundwater discharge in an area of shale-gas development: Environmental Science and Technology, vol. 49, no. 7, p. 4057-4065, https://doi.org/10.1021/es503882b.
Barton, G.J., and Risser, D.W., 1992, Approach for delineating the contributing areas of a well field in a carbonate-valley aquifer: Ground Water Management, Book 10, p. 59-76 in Proceedings of the Third conference on Hydrogeology, ecology, monitoring, and management of ground water in karst terranes, U.S. EPA and National Ground Water Association, December 4-6, 1991, Nashville, Tennessee.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 45
Aquifer tests and simulation of ground-water flow in Triassic sedimentary rocks near Colmar, Bucks and Montgomery Counties, Pennsylvania Aquifer tests and simulation of ground-water flow in Triassic sedimentary rocks near Colmar, Bucks and Montgomery Counties, Pennsylvania
This report presents the results of a study by the U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency to evaluate ground-water flow in Triassic sedimentary rocks near Colmar, in Bucks and Montgomery Counties, Pa. The study was conducted to help the U.S. Environmental Protection Agency evaluate remediation alternatives at the North Penn Area 5 Superfund...
Authors
Dennis W. Risser, Philip H. Bird
Case study for delineating a contributing area to a well in a fractured siliciclastic-bedrock aquifer near Lansdale, Pennsylvania Case study for delineating a contributing area to a well in a fractured siliciclastic-bedrock aquifer near Lansdale, Pennsylvania
A supply well used by the North Penn Water Authority near Lansdale, Pa., was selected as a case study for delineating a contributing area in a fractured siliciclastic-bedrock aquifer. The study emphasized the importance of refining the understanding of factors that control ground-water movement to the well by conducting (1) geophysical logging and flow measurements, (2) ground-water...
Authors
Gary J. Barton, Dennis W. Risser, Daniel G. Galeone, Daniel J. Goode
Hydrogeology and simulation of ground-water flow at the Gettysburg Elevator Plant Superfund Site, Adams County, Pennsylvania Hydrogeology and simulation of ground-water flow at the Gettysburg Elevator Plant Superfund Site, Adams County, Pennsylvania
Ground water in Triassic-age sedimentary fractured-rock aquifers in the area of Gettysburg, Pa., is used as drinking water and for industrial and commercial supply. In 1983, ground water at the Gettysburg Elevator Plant was found by the Pennsylvania Department of Environmental Resources to be contaminated with trichloroethene, 1,1,1-trichloroethane, and other synthetic organic compounds...
Authors
Dennis J. Low, Daniel J. Goode, Dennis W. Risser
Case study for delineating a contributing area to a water-supply well in a fractured crystalline-bedrock aquifer, Stewartstown, Pennsylvania Case study for delineating a contributing area to a water-supply well in a fractured crystalline-bedrock aquifer, Stewartstown, Pennsylvania
The Trouts Lane well field in Stewartstown, Pa., was selected as a case study for delineating a contributing area in a fractured crystalline-bedrock aquifer. The study emphasized the importance of refining the understanding of boundary conditions and major heterogeneities that affect ground-water movement to the supply well by conducting (1) fracture-trace mapping, (2) borehole logging...
Authors
Gary J. Barton, Dennis W. Risser, Daniel G. Galeone, Randall W. Conger
Hydrologic effects of the Pymatuning earthquake of September 25, 1998, in northwestern Pennsylvania Hydrologic effects of the Pymatuning earthquake of September 25, 1998, in northwestern Pennsylvania
Within hours after the Pymatuning earthquake of September 25, 1998, in northwestern Pennsylvania, local residents reported wells becoming dry, wells beginning to flow, and the formation of new springs. About 120 household-supply wells reportedly went dry within 3 months after the earthquake. About 80 of these wells were on a ridge between Jamestown and Greenville, where water-level...
Authors
Gary M. Fleeger, Daniel J. Goode, Theodore F. Buckwalter, Dennis W. Risser
Preliminary results from the investigation of the Pymatuning earthquake of September 25, 1998 Preliminary results from the investigation of the Pymatuning earthquake of September 25, 1998
The Pymatuning earthquake occurred on Friday, September 25, 1998, at 19:52:52 Universal Coordinated Time (UTC), or 3:52:52 p.m. EDT, near Jamestown, Pa., at the southern end of the Pymatuning Reservoir, which straddles the Ohio-Pennsylvania border. The National Earthquake Information Center (NEIC) determined that the event had a magnitude of 5.2 mbLg (a magnitude scale used to measure...
Authors
John Armbruster, Henry Barton, Paul Bodin, Theodore Buckwalter, Jon Cox, Edward Cranswick, James Dewey, Gary Fleeger, Margaret Hopper, Stephen Horton, Donald Hoskins, Deborah Kilb, Mark Meremonte, Ann Metzger, Dennis Risser, Leonardo Seeber, Kaye Shedlock, Katherine Stanley, Mitchell Withers, Madeleine Zirbes
Non-USGS Publications**
Heilweil, V.M., Grieve, P.L., Hynek, S.A., Brantley, S.L., Solomon, D.K, Risser, D.W., 2015, Stream measurements locate thermogenic methane fluxes in groundwater discharge in an area of shale-gas development: Environmental Science and Technology, vol. 49, no. 7, p. 4057-4065, https://doi.org/10.1021/es503882b.
Barton, G.J., and Risser, D.W., 1992, Approach for delineating the contributing areas of a well field in a carbonate-valley aquifer: Ground Water Management, Book 10, p. 59-76 in Proceedings of the Third conference on Hydrogeology, ecology, monitoring, and management of ground water in karst terranes, U.S. EPA and National Ground Water Association, December 4-6, 1991, Nashville, Tennessee.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.