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/F7MG7MKR
John Peter Masterson
Biography
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.
Science and Products
Year Published: 2008
Seasonal changes in submarine groundwater discharge to coastal salt ponds estimated using 226Ra and 228Ra as tracers
Submarine groundwater discharge (SGD) to coastal southern Rhode Island was estimated from measurements of the naturally-occurring radioisotopes 226Ra (t1/2 = 1600??y) and 228Ra (t1/2 = 5.75??y). Surface water and porewater samples were collected quarterly in Winnapaug, Quonochontaug, Ninigret, Green Hill, and Pt. Judith-Potter Ponds, as well as...
Hougham, A.L.; Moran, S.B.; Masterson, John; Kelly, R.P.View Citation
Seasonal changes in submarine groundwater discharge to coastal salt ponds estimated using 226Ra and 228Ra as tracers; 2008; Article; Journal; Marine Chemistry; Hougham, A. L.; Moran, S. B.; Masterson, J. P.; Kelly, R. P.
Year Published: 2008
Transient simulations of nitrogen load for a coastal aquifer and embayment, Cape Cod, MA
A time-varying, multispecies, modular, three-dimensional transport model (MT3DMS) was developed to simulate groundwater transport of nitrogen from increasing sources on land to the shore of Nauset Marsh, a coastal embayment of the Cape Cod National Seashore. Simulated time-dependent nitrogen loads at the coast can be used to correlate with current...
Colman, J.A.; Masterson, JohnView Citation
Transient simulations of nitrogen load for a coastal aquifer and embayment, Cape Cod, MA; 2008; Article; Journal; Environmental Science and Technology; Colman, J. A.; Masterson, J. P.
Year Published: 2007
Monitoring Ground-Water Quality in Coastal Ecosystems
INTRODUCTION The Cape Cod National Seashore (CACO) extends along more than 70 km of Atlantic Ocean open-beach coastline and includes three large saltwater bays - Wellfleet Harbor, Nauset Marsh, and Pleasant Bay (fig. 1). CACO encompasses about 18,000 ha of uplands, lakes, wetlands, and tidal lands (Godfrey and others, 1999) including most...
Colman, John A.; Masterson, John P.Attribution: New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Region 1: North Atlantic-Appalachian
View Citation
Monitoring Ground-Water Quality in Coastal Ecosystems; 2007; OFR; 2007-1149; Colman, John A.; Masterson, John P.
Year Published: 2007
Hydrogeology and Simulated Ground-Water Flow in the Salt Pond Region of Southern Rhode Island
The Salt Pond region of southern Rhode Island extends from Westerly to Narragansett Bay and forms the natural boundary between the Atlantic Ocean and the shallow, highly permeable freshwater aquifer of the South Coastal Basin. Large inputs of fresh ground water coupled with the low flushing rates to the open ocean make the salt ponds particularly...
Masterson, John P.; Sorenson, Jason R.; Stone, Janet Radway; Moran, S. Bradley; Hougham, AndreaAttribution: New England Water Science Center, Florence Bascom Geoscience Center, Water Resources, Region 4: Mississippi Basin, Region 1: North Atlantic-Appalachian
View Citation
Hydrogeology and Simulated Ground-Water Flow in the Salt Pond Region of Southern Rhode Island; 2007; SIR; 2006-5271; Masterson, John P.; Sorenson, Jason R.; Stone, Janet R.; Moran, S. Bradley; Hougham, Andrea
Year Published: 2007
Effects of sea-level rise on ground water flow in a coastal aquifer system
The effects of sea-level rise on the depth to the fresh water/salt water interface were simulated by using a density-dependent, three-dimensional numerical ground water flow model for a simplified hypothetical fresh water lens that is similar to shallow, coastal aquifers found along the Atlantic coast of the United States. Simulations of sea-level...
Masterson, John; Garabedian, S.P.Attribution: Water Resources
View Citation
Effects of sea-level rise on ground water flow in a coastal aquifer system; 2007; Article; Journal; Ground Water; Masterson, J. P.; Garabedian, S. P.
Year Published: 2005
Potential changes in ground-water flow and their effects on the ecology and water resources of the Cape Cod National Seashore, Massachusetts
Masterson, John P.; Portnoy, John W.Attribution: New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Region 1: North Atlantic-Appalachian
View Citation
Potential changes in ground-water flow and their effects on the ecology and water resources of the Cape Cod National Seashore, Massachusetts; 2005; GIP; 13; Masterson, John P.; Portnoy, John W.
Year Published: 2004
Ground-water recharge areas and traveltimes to pumped wells, ponds, streams, and coastal water bodies, Cape Cod, Massachusetts
Walter, Donald A.; Masterson, John P.; Hess, Kathyrn M.Attribution: New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Region 1: North Atlantic-Appalachian
View Citation
Ground-water recharge areas and traveltimes to pumped wells, ponds, streams, and coastal water bodies, Cape Cod, Massachusetts; 2004; SIM; 2857; Walter, Donald A.; Masterson, John P.; Hess, Kathyrn M.
Year Published: 2004
Effects of aquifer travel time on nitrogen transport to a coastal embayment
Effects of aquifer travel time on nitrogen reaction and loading to Popponesset Bay, a eutrophic coastal embayment on western Cape Cod, Massachusetts, are evaluated through hydrologic analysis of flow and transport. Approximately 10% of the total nitrogen load to the embayment is intercepted by fresh water ponds and delivered to the coast by...
Colman, John A.; Masterson, John P.; Pabich, Wendy J.; Walter, Donald A.
Year Published: 2004
Simulated interaction between freshwater and saltwater and effects of ground-water pumping and sea-level change, lower Cape Cod aquifer system, Massachusetts
The U.S. Geological Survey, in cooperation with the National Park Service, Massachusetts Executive Office of Environmental Affairs, Cape Cod Commission, and the Towns of Eastham, Provincetown, Truro, and Wellfleet, began an investigation in 2000 to improve the understanding of the hydrogeology of the four freshwater lenses of the Lower Cape Cod...
Masterson, John P.Attribution: New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Region 1: North Atlantic-Appalachian
View Citation
Simulated interaction between freshwater and saltwater and effects of ground-water pumping and sea-level change, lower Cape Cod aquifer system, Massachusetts; 2004; SIR; 2004-5014; Masterson, John P.
Year Published: 2004
Transient Analysis of the Source of Water to Wells: Cape Cod, Massachusetts
A transient flow modeling analysis for potential public-supply wells on western Cape Cod, Massachusetts, demonstrates the difference between transient and steady-state recharge areas can have important implications for wellhead protection. An example of a single pumping well illustrates that commonly, used steady-state time-related capture areas...
Masterson, John; Walter, D.A.; LeBlanc, D.R.View Citation
Transient Analysis of the Source of Water to Wells: Cape Cod, Massachusetts; 2004; Article; Journal; Ground Water; Masterson, J. P.; Walter, D. A.; LeBlanc, D. R.
Year Published: 2003
Simulation of advective flow under steady-state and transient recharge conditions, Camp Edwards, Massachusetts Military Reservation, Cape Cod, Massachusetts
The U.S. Geological Survey has developed several ground-water models in support of an investigation of ground-water contamination being conducted by the Army National Guard Bureau at Camp Edwards, Massachusetts Military Reservation on western Cape Cod, Massachusetts. Regional and subregional steady-state models and regional transient models were...
Walter, Donald A.; Masterson, John P.Attribution: New England Water Science Center, Water Resources, Ecosystems, Toxic Substances Hydrology, Environmental Health Program, Region 4: Mississippi Basin, Region 1: North Atlantic-Appalachian
View Citation
Simulation of advective flow under steady-state and transient recharge conditions, Camp Edwards, Massachusetts Military Reservation, Cape Cod, Massachusetts; 2003; WRI; 2003-4053; Walter, Donald A.; Masterson, John P.
Year Published: 2002
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...
Walter, Donald A.; Masterson, John P.; LeBlanc, Denis R.Attribution: New England Water Science Center, Water Resources, Ecosystems, Toxic Substances Hydrology, Environmental Health Program, Region 4: Mississippi Basin, Region 1: North Atlantic-Appalachian
View Citation
Simulated pond-aquifer interactions under natural and stressed conditions near Snake Pond, Cape Cod, Massachusetts; 2002; WRI; 99-4174; Walter, Donald A.; Masterson, John P.; LeBlanc, Denis R.
Pre-USGS Publications
Masterson, 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.
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, Sea
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.
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
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.