John Peter Masterson
Intro
John Masterson is the Associate Director for Science Operations in the New York Water Science Center. He completed his B.A. in Geosciences at SUNY Geneseo and M.S. in Geosciences at the University of Missouri-Columbia. John began his USGS career at the New York Water Science Center on Long Island in 1987, transferred to the New England Water Science Center in Massachusetts in 1990, and has returned to the New York Water Science Center in 2021. He specializes in computer model applications to study groundwater flow dynamics and is an author of numerous USGS technical reports and peer-reviewed articles on groundwater resources in coastal aquifer systems. John is currently serving as the project coordinator for the ongoing NYSDEC-USGS cooperative investigation of groundwater sustainability of the Long Island regional aquifer system.
Professional Experience
USGS the New York Water Science Center as Associate Director for Science Operations in 2021-present
New England Water Science Center in Massachusetts in 1990-2021
USGS the New York Water Science Center on Long Island in 1987-1990
Education and Certifications
M.S. in Geosciences at the University of Missouri-Columbia.
B.A. in Geosciences at SUNY Geneseo
Science and Products
Simulated pond-aquifer interactions under natural and stressed conditions near Snake Pond, Cape Cod, Massachusetts
Simulated changes in the sources of ground water for public-supply wells, ponds, streams, and coastal areas on western Cape Cod, Massachusetts
Delineation of groundwater recharge areas, western Cape Cod, Massachusetts
Delineation of contributing areas to selected public-supply wells, western Cape Cod, Massachusetts
Use of particle tracking to improve numerical model calibration and to analyze ground-water flow and contaminant migration, Massachusetts Military Reservation, western Cape Cod, Massachusetts
Hydrogeologic framework of western Cape Cod, Massachusetts
Effects of simulated ground-water pumping and recharge on ground-water flow in Cape Cod, Martha's Vineyard, and Nantucket Island basins, Massachusetts
Use of particle tracking to improve numerical model calibration and to analyze ground-water flow and contaminant migration, Massachusetts Military Reservation, western Cape Cod, Massachusetts
Hydrogeology and analysis of ground-water-flow system, Sagamore Marsh area, southeastern Massachusetts
Geohydrology and potential water-supply development on Bumkin, Gallops, Georges, Grape, Lovell, and Peddocks Islands, eastern Massachusetts
Hydrogeologic framework of western Cape Cod, Massachusetts
Simulation of the effects of ground-water withdrawals and recharge on ground-water flow in Cape Cod, Martha's Vineyard, and Nantucket Island basins, Massachusetts
Non-USGS Publications**
May 1 – 5, 2011
to Coastal Embayments, Western Cape Cod, Massachusetts: in Proceedings of the Geological Society of America National Meeting, Boston, Massachusetts,
November 1-10, 2001.
public-supply wells, streams, ponds, and coastal embayments, western Cape Cod, Massachusetts: in Proceedings of the National Ground Water Association Northeast Focus Ground Water Conference, Burlington, Vermont, October 20-21, 1998.
computerized visualization of fluid-particle pathlines for simulated contaminant plumes in ground-water, Massachusetts Military Reservation, Cape Cod, Massachusetts: in Proceedings of the Geological Society of America Annual Meeting, Seattle, Washington, October 24-27, 1994, v. 26, No. 7.
withdrawals and recharge on the hydrology of the sole-source Cape Cod Aquifer,
Massachusetts: in Proceedings of the National Ground Water Association Focus
Conference on Eastern Ground Water Issues, Burlington, Vermont, October 3-5,
1994.
**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
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Filter Total Items: 49
Simulated pond-aquifer interactions under natural and stressed conditions near Snake Pond, Cape Cod, Massachusetts
A numerical model was used to simulate pond-aquifer interactions under natural and stressed conditions near Snake Pond, Cape Cod, Massachusetts. Simulation results show that pond-bottom hydraulic conductivity, which represents the degree of hydraulic connection between the pond and the aquifer, is an important control on these interactions. As this parameter was incrementally increased from 10 toAuthorsDonald A. Walter, John P. Masterson, Denis R. LeBlancSimulated changes in the sources of ground water for public-supply wells, ponds, streams, and coastal areas on western Cape Cod, Massachusetts
No abstract available.AuthorsJohn P. Masterson, Kathryn M. Hess, Donald A. Walter, Denis R. LeBlancDelineation of groundwater recharge areas, western Cape Cod, Massachusetts
The unconfined sand-and-gravel aquifer in western Cape Cod, Massachusetts, which is the sole source of water supply for the communities in the area, is recharged primarily from precipitation. The rate of recharge from precipitation is estimated to be about 26 inches per year (in/yr), or about 60 percent of the precipitation rate. This recharge rate yields a flow through the aquifer of about 180 miAuthorsJohn P. Masterson, Donald A. WalterDelineation of contributing areas to selected public-supply wells, western Cape Cod, Massachusetts
No abstract available.AuthorsJohn P. Masterson, Donald A. Walter, Denis R. LeBlancUse of particle tracking to improve numerical model calibration and to analyze ground-water flow and contaminant migration, Massachusetts Military Reservation, western Cape Cod, Massachusetts
A steady-state, three-dimensional flow model coupled with a particle-tracking algorithm was developed to assess the complex interaction of hydrogeologic conditions affecting ground-water flow and contaminant transport--including aquifer heterogeneities, hydrologic boundaries such as ponds and streams, ground-water withdrawals, and aquifer recharge to characterize the migration of contaminants emanAuthorsJohn P. Masterson, Donald A. Walter, Jennifer G. SavoieHydrogeologic framework of western Cape Cod, Massachusetts
The aquifer of western Cape Cod consists of several hydrogeologic units composed of sand, gravel, silt, and clay (fig. 1) that were deposited during the late Wisconsinan glaciation of New England. The aquifer is a shallow, unconfined hydrologic system in which ground-water flows radially outward from the apex of the ground-water mound near the center of the peninsula toward the coast (fig.2). TheAuthorsJohn P. Masterson, Byron D. Stone, Donald A. Walter, Jennifer G. SavoieEffects of simulated ground-water pumping and recharge on ground-water flow in Cape Cod, Martha's Vineyard, and Nantucket Island basins, Massachusetts
Three-dimensional transient ground-water-flow models that simulate both freshwater and saltwater flow were developed for the flow cells of the Cape Cod Basin to determine the effects of long-term pumping and recharge, seasonal fluctuations in pumping and recharge, and prolonged reductions of natural recharge, on the position of the freshwater-saltwater interface, water-table and pond altitudes, anAuthorsJohn P. Masterson, Paul M. BarlowUse of particle tracking to improve numerical model calibration and to analyze ground-water flow and contaminant migration, Massachusetts Military Reservation, western Cape Cod, Massachusetts
A steady-state, three-dimensional numerical model coupled with a particle-tracking algorithm was developed to simulate the complex hydrogeologic conditions affecting ground-water flow and contaminant migration in the Cape Cod aquifer beneath the Massachusetts Military Reservation, Massachusetts. The known extents of the contaminant plumes beneath the reservation were incorporated into a particle-tAuthorsJohn P. Masterson, Donald A. Walter, Jennifer G. SavoieHydrogeology and analysis of ground-water-flow system, Sagamore Marsh area, southeastern Massachusetts
A study of the hydrogeology and an analysis of the ground-water-flow system near Sagamore Marsh, southeastern Massachusetts, was undertaken to improve the understanding of the current (1994 95) hydrogeologic conditions near the marsh and how the ground-water system might respond to proposed changes in the tidal-stage regime of streams that flood and drain the marsh. Sagamore Marsh is in a coastalAuthorsDonald A. Walter, John P. Masterson, Paul M. BarlowGeohydrology and potential water-supply development on Bumkin, Gallops, Georges, Grape, Lovell, and Peddocks Islands, eastern Massachusetts
An investigation of the geohydrology and of the potential for water-supply development on several of the Boston Harbor Islands, eastern Massachusetts, was conducted to evaluate the possibility of developing a permanent small-capacity water supply to support recreational activities, such as camping, hiking, and swimming. The Boston Harbor Islands, including Bumkin, Gallops, Georges, Grape, Lovell,AuthorsJohn P. Masterson, Byron D. Stone, R. R. RendigsHydrogeologic framework of western Cape Cod, Massachusetts
No abstract available.AuthorsJohn P. Masterson, B. D. Stone, D. A. Walter, Jennifer G. SavoieSimulation of the effects of ground-water withdrawals and recharge on ground-water flow in Cape Cod, Martha's Vineyard, and Nantucket Island basins, Massachusetts
The effects of changing patterns of ground-water pumping and aquifer recharge on the surface-water and ground-water hydrologic systems were determined for the Cape Cod, Martha's Vineyard, and Nantucket Island Basins. Three-dimensional, transient, ground-water-flow modelS that simulate both freshwater and saltwater flow were developed for the f1ow cells of Cape Cod which currently have large-capaciAuthorsJohn P. Masterson, Paul M. BarlowNon-USGS Publications**
Masterson, J.P., Pope, J.P., Fienen, M.N., Monti, Jack Jr., Nardi, M.R., and Finkelstein, J.S., 2016, MODFLOW-NWT model used to assess groundwater availability in the Northern Atlantic Coastal Plain aquifer system from Long Island, New York to North Carolina: U.S. Geological Survey data release. https://dx.doi.org/10.5066/F7MG7MKRMasterson, J.P., Walter, D.A., Langevin, Christian, 2015, Effects of Sea-Level Rise on Coastal Aquifer Systems – Potential Economic and Ecological Impacts, Eastern U.S.: in Proceedings of Geological Society of America Annual Meeting, Baltimore MD, November, 2015.Masterson, J. P., Banks, W.S., Johnson, C. D., Gutierrez, B., and Fienen, M. N., 2011, Hydrologic assessment of the potential effects of sea-level rise on Assateague Island National Seashore, Maryland: in Proceedings of the National Ground Water Association National Groundwater Summit, Baltimore, Maryland,
May 1 – 5, 2011
Masterson, J. P., and Garabedian, S.P., 2006, Effects of sea-level rise on a coastal aquifer system, Cape Cod, Massachusetts: in Proceedings of the Geological Society of America National Meeting, Philadelphia, Pennsylvania, October 22-26, 2006.Masterson, J. P., and D. A. Walter, 2001, Hydrologic Analysis of the Sources of Water
to Coastal Embayments, Western Cape Cod, Massachusetts: in Proceedings of the Geological Society of America National Meeting, Boston, Massachusetts,
November 1-10, 2001.
Masterson, J.P., 1998, Effects of natural and artificial stresses on the sources of water to
public-supply wells, streams, ponds, and coastal embayments, western Cape Cod, Massachusetts: in Proceedings of the National Ground Water Association Northeast Focus Ground Water Conference, Burlington, Vermont, October 20-21, 1998.
Masterson, J.P., Hess, K.M., Kruger, M.H., and Davis, J. C., 1994, Three dimensional
computerized visualization of fluid-particle pathlines for simulated contaminant plumes in ground-water, Massachusetts Military Reservation, Cape Cod, Massachusetts: in Proceedings of the Geological Society of America Annual Meeting, Seattle, Washington, October 24-27, 1994, v. 26, No. 7.
Masterson, J.P., and Barlow, P.M., 1994, Effects of simulated changes in ground-water
withdrawals and recharge on the hydrology of the sole-source Cape Cod Aquifer,
Massachusetts: in Proceedings of the National Ground Water Association Focus
Conference on Eastern Ground Water Issues, Burlington, Vermont, October 3-5,
1994.
Masterson, J.P., and Walter, D.A., 1994, The Effects of Changes in Aquifer Properties on Simulated Fluid Particle Pathlines, Cape Cod, Massachusetts: in Morganwalp, D.W., and Aronson, D. A., eds., 1994, U.S. Geological Survey Toxic Substances Hydrology Program-- Proceedings of the Technical Meeting, Colorado Springs, Colorado, September 20-24, 1993: U.S. Geological Survey Water-Resources Investigations Report 94-4014.**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.
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