Carole D. Johnson (Former Employee)
Science and Products
Filter Total Items: 18
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Filter Total Items: 52
Use of discrete-zone monitoring systems for hydraulic characterization of a fractured-rock aquifer at the University of Connecticut Landfill, Storrs, Connecticut, 1999 to 2002 Use of discrete-zone monitoring systems for hydraulic characterization of a fractured-rock aquifer at the University of Connecticut Landfill, Storrs, Connecticut, 1999 to 2002
The U.S. Geological Survey, in cooperation with the University of Connecticut, used a suite of hydraulic methods to characterize the hydrogeology of a fractured-rock aquifer near the former landfill and chemical-waste disposal pits at the University of Connecticut, Storrs, Connecticut. Multiple methods were used to determine head, driving potential, and transmissivity, including manual...
Authors
Carole D. Johnson, Christopher S. Kochiss, C. B. Dawson
Analysis of borehole-radar reflection data from Machiasport, Maine, December 2003 Analysis of borehole-radar reflection data from Machiasport, Maine, December 2003
In December 2003, the U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers, collected borehole-radar reflection logs in two boreholes in Machiasport, Maine. These bedrock boreholes were drilled as part of a hydrogeologic investigation of the area surrounding the former Air Force Radar Tracking Station site on Howard Mountain near Bucks Harbor. The boreholes, MW09...
Authors
Carole D. Johnson, Peter K. Joesten
Borehole-geophysical and hydraulic investigation of the fractured-rock aquifer near the University of Connecticut Landfill, Storrs, Connecticut, 2000 to 2001 Borehole-geophysical and hydraulic investigation of the fractured-rock aquifer near the University of Connecticut Landfill, Storrs, Connecticut, 2000 to 2001
An integrated borehole-geophysical and hydraulic investigation was conducted at the former landfill area near the University of Connecticut in Storrs, Connecticut, where solvents and landfill leachate have contaminated a fractured-bedrock aquifer. Borehole-geophysical techniques and hydraulic methods were used to characterize the site bedrock lithology and structure, fractures, and...
Authors
Carole D. Johnson, Peter K. Joesten, Remo A. Mondazzi
Combined use of borehole geophysics and packers to site potable wells in a contaminated area in Montville, Connecticut Combined use of borehole geophysics and packers to site potable wells in a contaminated area in Montville, Connecticut
A leaking underground gasoline tank contaminated a crystalline bedrock aquifer in Montville, Connecticut, USA with MTBE and benzene. At the original residential bedrock supply wells, the median MTBE concentration was 165 micrograms per liter (mg/L), and the median benzene concentration was 320 mg/L. The maximum concentrations of MTBE and benzene were 4,300 mg/l and 1,700 mg/L...
Authors
A. Green, John W. Lane, Carole D. Johnson, John Williams, Remo A. Mondazzi, Peter K. Joesten
Time-series monitoring in fractured-rock aquifers Time-series monitoring in fractured-rock aquifers
Time-lapse monitoring of subsurface processes is an emerging and promising area of hydrogeophysics. The combined use of non-invasive or minimally invasive geophysical methods with hydraulic and geochemical sampling is a cost-effective approach for aquifer characterization, long-term aquifer monitoring, and remediation monitoring. Time-lapse geophysical surveys can indirectly measure time...
Authors
Carole D. Johnson, John W. Lane, Frederick D. Day-Lewis
Hydraulic logging methods - A summary and field demonstration in Conyers, Rockdale County, Georgia Hydraulic logging methods - A summary and field demonstration in Conyers, Rockdale County, Georgia
Geophysical surveying techniques provide important information for ground-water investigations (Zohdy and others, 1974; Keys, 1997; Haeni and others, 2001). Subsurface-geophysical methods are used to delineate and characterize hydraulically active zones; the extent of contamination, and contaminant sources; identify geologic features; optimize monitoring well placement; and guide...
Authors
Carole D. Johnson, John Williams
Science and Products
Filter Total Items: 18
No Result Found
Filter Total Items: 52
Use of discrete-zone monitoring systems for hydraulic characterization of a fractured-rock aquifer at the University of Connecticut Landfill, Storrs, Connecticut, 1999 to 2002 Use of discrete-zone monitoring systems for hydraulic characterization of a fractured-rock aquifer at the University of Connecticut Landfill, Storrs, Connecticut, 1999 to 2002
The U.S. Geological Survey, in cooperation with the University of Connecticut, used a suite of hydraulic methods to characterize the hydrogeology of a fractured-rock aquifer near the former landfill and chemical-waste disposal pits at the University of Connecticut, Storrs, Connecticut. Multiple methods were used to determine head, driving potential, and transmissivity, including manual...
Authors
Carole D. Johnson, Christopher S. Kochiss, C. B. Dawson
Analysis of borehole-radar reflection data from Machiasport, Maine, December 2003 Analysis of borehole-radar reflection data from Machiasport, Maine, December 2003
In December 2003, the U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers, collected borehole-radar reflection logs in two boreholes in Machiasport, Maine. These bedrock boreholes were drilled as part of a hydrogeologic investigation of the area surrounding the former Air Force Radar Tracking Station site on Howard Mountain near Bucks Harbor. The boreholes, MW09...
Authors
Carole D. Johnson, Peter K. Joesten
Borehole-geophysical and hydraulic investigation of the fractured-rock aquifer near the University of Connecticut Landfill, Storrs, Connecticut, 2000 to 2001 Borehole-geophysical and hydraulic investigation of the fractured-rock aquifer near the University of Connecticut Landfill, Storrs, Connecticut, 2000 to 2001
An integrated borehole-geophysical and hydraulic investigation was conducted at the former landfill area near the University of Connecticut in Storrs, Connecticut, where solvents and landfill leachate have contaminated a fractured-bedrock aquifer. Borehole-geophysical techniques and hydraulic methods were used to characterize the site bedrock lithology and structure, fractures, and...
Authors
Carole D. Johnson, Peter K. Joesten, Remo A. Mondazzi
Combined use of borehole geophysics and packers to site potable wells in a contaminated area in Montville, Connecticut Combined use of borehole geophysics and packers to site potable wells in a contaminated area in Montville, Connecticut
A leaking underground gasoline tank contaminated a crystalline bedrock aquifer in Montville, Connecticut, USA with MTBE and benzene. At the original residential bedrock supply wells, the median MTBE concentration was 165 micrograms per liter (mg/L), and the median benzene concentration was 320 mg/L. The maximum concentrations of MTBE and benzene were 4,300 mg/l and 1,700 mg/L...
Authors
A. Green, John W. Lane, Carole D. Johnson, John Williams, Remo A. Mondazzi, Peter K. Joesten
Time-series monitoring in fractured-rock aquifers Time-series monitoring in fractured-rock aquifers
Time-lapse monitoring of subsurface processes is an emerging and promising area of hydrogeophysics. The combined use of non-invasive or minimally invasive geophysical methods with hydraulic and geochemical sampling is a cost-effective approach for aquifer characterization, long-term aquifer monitoring, and remediation monitoring. Time-lapse geophysical surveys can indirectly measure time...
Authors
Carole D. Johnson, John W. Lane, Frederick D. Day-Lewis
Hydraulic logging methods - A summary and field demonstration in Conyers, Rockdale County, Georgia Hydraulic logging methods - A summary and field demonstration in Conyers, Rockdale County, Georgia
Geophysical surveying techniques provide important information for ground-water investigations (Zohdy and others, 1974; Keys, 1997; Haeni and others, 2001). Subsurface-geophysical methods are used to delineate and characterize hydraulically active zones; the extent of contamination, and contaminant sources; identify geologic features; optimize monitoring well placement; and guide...
Authors
Carole D. Johnson, John Williams