Thomas J Mack, PG
Tom Mack is a Scientist Emeritus with the USGS International Programs.
Science and Products
Filter Total Items: 38
Borehole-geophysical characterization of a fractured-bedrock aquifer, Rye, New Hampshire Borehole-geophysical characterization of a fractured-bedrock aquifer, Rye, New Hampshire
Borehole geophysical logs collected from six wells were analyzed to characterize a high-yield bedrock aquifer in the Town of Rye, New Hampshire. Video camera, caliper, fluid temperature and conductivity, natural gamma, and deviation logs were used to identify and characterize the fractured bedrock. More advanced geophysical tools included acoustic televiewer and borehole radar, which...
Authors
C. D. Johnson, A.H. Dunstan, Thomas J. Mack, J.W. Lane
Construction and calibration of numerical ground-water-flow models of the western half of the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire Construction and calibration of numerical ground-water-flow models of the western half of the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire
No abstract available.
Authors
P. T. Harte, R. H. Flynn, Thomas J. Mack
Geophysical characterization of a high-yield, fractured-bedrock well, Seabrook, New Hampshire Geophysical characterization of a high-yield, fractured-bedrock well, Seabrook, New Hampshire
No abstract available.
Authors
Thomas J. Mack, C. D. Johnson, J.W. Lane
A quality-assurance plan for district ground-water activities of the U.S. Geological Survey A quality-assurance plan for district ground-water activities of the U.S. Geological Survey
As the Nation's principal earth-science information agency, the U.S. Geological Survey (USGS) is depended upon to collect data of the highest quality. This document provides the framework for collecting, analyzing and reporting ground-water data that are quality assured and quality controlled.
Authors
J.O. Brunett, N. L. Barber, A.W. Burns, R. P. Fogelman, D. C. Gillies, R.A. Lidwin, Thomas J. Mack
Analysis of aquifer tests to determine hydrologic and water-quality conditions in stratified-drift and riverbed sediments near a former municipal well, Milford, New Hampshire Analysis of aquifer tests to determine hydrologic and water-quality conditions in stratified-drift and riverbed sediments near a former municipal well, Milford, New Hampshire
No abstract available.
Authors
Thomas J. Mack, P. T. Harte
Hydrogeology, simulated ground-water flow, and ground-water quality at two landfills in Bristol, Vermont Hydrogeology, simulated ground-water flow, and ground-water quality at two landfills in Bristol, Vermont
A study was done to describe the hydrogeology of unconsolidated deposits, simulated ground-water flow, and ground-water quality at two landfills in Bristol, Vermont. The study area is characterized by a glacial delta greater than 200 feet thick on the west flank of the Green Mountains. An upper unconfined, coarse-grained glacial aquifer and a lower fine-grained glacial aquifer are...
Authors
Thomas J. Mack
Design of monitor wells, hydrogeology, and ground-water quality beneath Country Pond, Kingston, New Hampshire Design of monitor wells, hydrogeology, and ground-water quality beneath Country Pond, Kingston, New Hampshire
Ten monitoring well were installed in May 1993 to collect data on the hydrogeology and ground-water quality beneath Country Pond, in Kingston, New Hampshire. Monitoring wells were installed 4 to 48 feet beneath the pond surface in stratified drift that was up to 40 feet thick. The stratified drift is overlain by up to 35 feet of fine-grained, predominantly organic, lake-bottom sediment...
Authors
Thomas J. Mack
Detection of contaminant plumes by bore hole geophysical logging Detection of contaminant plumes by bore hole geophysical logging
Two borehole geophysical methods—electromagnetic induction and natural gamma radiation logs—were used to vertically delineate landfill leachate plumes in a glacial aquifer. Geophysical logs of monitoring wells near two land-fills in a glacial aquifer in west-central Vermont show that borehole geophysical methods can aid in interpretation of geologic logs and placement of monitoring well...
Authors
Thomas J. Mack
Geohydrology and water quality of stratified-drift aquifers in the Bellamy, Cocheco, and Salmon Falls River basins, southeastern New Hampshire Geohydrology and water quality of stratified-drift aquifers in the Bellamy, Cocheco, and Salmon Falls River basins, southeastern New Hampshire
No abstract available.
Authors
Thomas J. Mack, Sean M. Lawlor
Geohydrology of, and simulation of ground-water flow in, the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire Geohydrology of, and simulation of ground-water flow in, the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire
Hydrogeologic data collected since 1990 were assessed and a ground-water-flow model was refined in this study of the Milford-Souhegan glacial-drift aquifer in Milford, New Hampshire. The hydrogeologic data collected were used to refine estimates of hydraulic conductivity and saturated thickness of the aquifer, which were previously calculated during 1988-90. In October 1990, water levels...
Authors
P. T. Harte, Thomas J. Mack
Geohydrologic, ground-water-quality, and streamflow data for the stratified-drift aquifers in the Bellamy, Cocheco, and Salmon Falls River basins, southeastern New Hampshire Geohydrologic, ground-water-quality, and streamflow data for the stratified-drift aquifers in the Bellamy, Cocheco, and Salmon Falls River basins, southeastern New Hampshire
No abstract available.
Authors
Sean M. Lawlor, Thomas J. Mack
Documentation of model input and output data for the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire Documentation of model input and output data for the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire
No abstract available.
Authors
Thomas J. Mack, Philip T. Harte
Science and Products
Filter Total Items: 38
Borehole-geophysical characterization of a fractured-bedrock aquifer, Rye, New Hampshire Borehole-geophysical characterization of a fractured-bedrock aquifer, Rye, New Hampshire
Borehole geophysical logs collected from six wells were analyzed to characterize a high-yield bedrock aquifer in the Town of Rye, New Hampshire. Video camera, caliper, fluid temperature and conductivity, natural gamma, and deviation logs were used to identify and characterize the fractured bedrock. More advanced geophysical tools included acoustic televiewer and borehole radar, which...
Authors
C. D. Johnson, A.H. Dunstan, Thomas J. Mack, J.W. Lane
Construction and calibration of numerical ground-water-flow models of the western half of the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire Construction and calibration of numerical ground-water-flow models of the western half of the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire
No abstract available.
Authors
P. T. Harte, R. H. Flynn, Thomas J. Mack
Geophysical characterization of a high-yield, fractured-bedrock well, Seabrook, New Hampshire Geophysical characterization of a high-yield, fractured-bedrock well, Seabrook, New Hampshire
No abstract available.
Authors
Thomas J. Mack, C. D. Johnson, J.W. Lane
A quality-assurance plan for district ground-water activities of the U.S. Geological Survey A quality-assurance plan for district ground-water activities of the U.S. Geological Survey
As the Nation's principal earth-science information agency, the U.S. Geological Survey (USGS) is depended upon to collect data of the highest quality. This document provides the framework for collecting, analyzing and reporting ground-water data that are quality assured and quality controlled.
Authors
J.O. Brunett, N. L. Barber, A.W. Burns, R. P. Fogelman, D. C. Gillies, R.A. Lidwin, Thomas J. Mack
Analysis of aquifer tests to determine hydrologic and water-quality conditions in stratified-drift and riverbed sediments near a former municipal well, Milford, New Hampshire Analysis of aquifer tests to determine hydrologic and water-quality conditions in stratified-drift and riverbed sediments near a former municipal well, Milford, New Hampshire
No abstract available.
Authors
Thomas J. Mack, P. T. Harte
Hydrogeology, simulated ground-water flow, and ground-water quality at two landfills in Bristol, Vermont Hydrogeology, simulated ground-water flow, and ground-water quality at two landfills in Bristol, Vermont
A study was done to describe the hydrogeology of unconsolidated deposits, simulated ground-water flow, and ground-water quality at two landfills in Bristol, Vermont. The study area is characterized by a glacial delta greater than 200 feet thick on the west flank of the Green Mountains. An upper unconfined, coarse-grained glacial aquifer and a lower fine-grained glacial aquifer are...
Authors
Thomas J. Mack
Design of monitor wells, hydrogeology, and ground-water quality beneath Country Pond, Kingston, New Hampshire Design of monitor wells, hydrogeology, and ground-water quality beneath Country Pond, Kingston, New Hampshire
Ten monitoring well were installed in May 1993 to collect data on the hydrogeology and ground-water quality beneath Country Pond, in Kingston, New Hampshire. Monitoring wells were installed 4 to 48 feet beneath the pond surface in stratified drift that was up to 40 feet thick. The stratified drift is overlain by up to 35 feet of fine-grained, predominantly organic, lake-bottom sediment...
Authors
Thomas J. Mack
Detection of contaminant plumes by bore hole geophysical logging Detection of contaminant plumes by bore hole geophysical logging
Two borehole geophysical methods—electromagnetic induction and natural gamma radiation logs—were used to vertically delineate landfill leachate plumes in a glacial aquifer. Geophysical logs of monitoring wells near two land-fills in a glacial aquifer in west-central Vermont show that borehole geophysical methods can aid in interpretation of geologic logs and placement of monitoring well...
Authors
Thomas J. Mack
Geohydrology and water quality of stratified-drift aquifers in the Bellamy, Cocheco, and Salmon Falls River basins, southeastern New Hampshire Geohydrology and water quality of stratified-drift aquifers in the Bellamy, Cocheco, and Salmon Falls River basins, southeastern New Hampshire
No abstract available.
Authors
Thomas J. Mack, Sean M. Lawlor
Geohydrology of, and simulation of ground-water flow in, the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire Geohydrology of, and simulation of ground-water flow in, the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire
Hydrogeologic data collected since 1990 were assessed and a ground-water-flow model was refined in this study of the Milford-Souhegan glacial-drift aquifer in Milford, New Hampshire. The hydrogeologic data collected were used to refine estimates of hydraulic conductivity and saturated thickness of the aquifer, which were previously calculated during 1988-90. In October 1990, water levels...
Authors
P. T. Harte, Thomas J. Mack
Geohydrologic, ground-water-quality, and streamflow data for the stratified-drift aquifers in the Bellamy, Cocheco, and Salmon Falls River basins, southeastern New Hampshire Geohydrologic, ground-water-quality, and streamflow data for the stratified-drift aquifers in the Bellamy, Cocheco, and Salmon Falls River basins, southeastern New Hampshire
No abstract available.
Authors
Sean M. Lawlor, Thomas J. Mack
Documentation of model input and output data for the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire Documentation of model input and output data for the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire
No abstract available.
Authors
Thomas J. Mack, Philip T. Harte