Thomas J Mack, PG
Tom Mack has been a hydrogeologist with the USGS since 1983.
Tom has conducted numerous hydrologic investigations from site-specific contaminant studies to regional-scale resource assessments in the Northeastern U.S., Afghanistan, Africa, Emirates, and Madagascar. He specializes in regional groundwater resource assessments in valley-fill and fractured-bedrock settings. Other areas of expertise include: remotely-sensed data and groundwater flow modeling in regional water-availability investigations, analysis of GIS data for regional water and mineral resource evaluation, surface and borehole geophysical techniques, and borehole drilling.
Professional Experience
Program Manager, Los Planes Watershed Water Cycle Augmentation Project, Baja California Sur, Mexico, 2022-present
Program Manager, Afghanistan Project, USDOD-USAID, 2018-2023
Senior Hydrogeologist, Kenya and Ethiopia USAID Groundwater Resources Project, 2016-2018
Groundwater Specialist, New England Water Science Center, 2014-2017
Groundwater Modeler, Abu Dhabi Groundwater Resources Project, United Arab Emirates, 2014-2016
Senior Hydrogeologist, Afghanistan Project, USAID, 2006-2009, USDOD, 2009-2014
Senior Hydrogeologist, Review team member for U.S. Nuclear Regulatory Commission, 2010-2011
Hydrogeologist, Madagascar Minerals Project, 2005-2006
Groundwater Specialist, New Hampshire-Vermont District, 1995-2012
Groundwater Investigations and Research Studies Chief, New Hampshire-Vermont District, 1995-2003
Groundwater Specialist, New England Program Area, 1992-1995
Project Chief, Hydrologist New England USEPA Superfund projects, 1985-1992
Hydrogeologist, Geophysicist, Water Resources Division, Long Island NY Subdistrict, 1983-1985
Education and Certifications
University of New Hampshire, M.S. Hydrology 1982
Hartwick College, New York, B.A. Geology 1980
Certified Professional Hydrogeologist – American Institute of Hydrology - No. 1643
Certified Professional Geologist – New York, USA, No. 24 and New Hampshire, USA, No.159
Science and Products
Construction and calibration of numerical ground-water-flow models of the western half of the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire
Geophysical characterization of a high-yield, fractured-bedrock well, Seabrook, New Hampshire
A quality-assurance plan for district ground-water activities of the U.S. Geological Survey
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
Hydrogeology, simulated ground-water flow, and ground-water quality at two landfills in Bristol, Vermont
Design of monitor wells, hydrogeology, and ground-water quality beneath Country Pond, Kingston, New Hampshire
Detection of contaminant plumes by bore hole geophysical logging
Geohydrology of, and simulation of ground-water flow in, the Milford-Souhegan glacial-drift aquifer, Milford, 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
Geohydrology and water quality of stratified-drift aquifers in the Bellamy, Cocheco, and Salmon Falls River basins, southeastern New Hampshire
Documentation of model input and output data for the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire
Adaptation of a ground-water-flow model of the Little Androscoggin River Valley aquifer, Oxford County, Maine to a microcomputer
Science and Products
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Filter Total Items: 37
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.AuthorsP. T. Harte, R. H. Flynn, Thomas J. MackGeophysical characterization of a high-yield, fractured-bedrock well, Seabrook, New Hampshire
No abstract available.AuthorsThomas J. Mack, C. D. Johnson, J.W. LaneA 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.AuthorsJ.O. Brunett, N. L. Barber, A.W. Burns, R. P. Fogelman, D. C. Gillies, R.A. Lidwin, Thomas J. MackAnalysis 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.AuthorsThomas J. Mack, P. T. HarteHydrogeology, 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 separated througAuthorsThomas J. MackDesign 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. The potentAuthorsThomas J. MackDetection 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 screens toAuthorsThomas J. MackGeohydrology 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 were measAuthorsP. T. Harte, Thomas J. MackGeohydrologic, 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.AuthorsSean M. Lawlor, Thomas J. MackGeohydrology and water quality of stratified-drift aquifers in the Bellamy, Cocheco, and Salmon Falls River basins, southeastern New Hampshire
No abstract available.AuthorsThomas J. Mack, Sean M. LawlorDocumentation of model input and output data for the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire
No abstract available.AuthorsThomas J. Mack, Philip T. HarteAdaptation of a ground-water-flow model of the Little Androscoggin River Valley aquifer, Oxford County, Maine to a microcomputer
No abstract available.AuthorsThomas J. Mack - Science
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