Frederick J Spitz
A research hydrologist with the USGS New Jersey Water Science Center
Project Management/Development
- Set and achieve objectives, cooperator and colleague collaboration, oral and written presentation of results
- Development of pre-preposals, full proposals, work plans, and budgets
Technical Work
- Computer modeling within and outside NJ involving multidisciplinary water resource themes
- Surface water modeling/water quality modeling
Eutrophication
Hydrodynamic-water quality model linkage development
Flow routing, constituent transport, and mixing
Hydraulic model review
- Groundwater modeling
Surface-water/groundwater interaction
Effects and optimization of withdrawals
Method development for improved delineation of wellhead protection areas
Saltwater encroachment
- Technical advice and review
Interests
- Hydrodynamic modeling, water quality modeling, watershed modeling
Science and Products
Filter Total Items: 15
Simulation of flow and eutrophication in the central Salem River, New Jersey
The central Salem River in New Jersey is subject to periods of water-quality impairment, marked by elevated concentrations of phosphorus and chlorophyll-a, and low concentrations of and large diurnal swings in concentrations of dissolved oxygen. These seasonal eutrophic conditions are controlling factors for water quality in lower reaches, where the river is more lacustrine than in upper reaches,
Authors
Frederick J. Spitz, Vincent T. DePaul
Towards a comprehensive water quality modeling of Barnegat Bay: Development of ROMS to WASP Coupler
The Regional Ocean Modeling System (ROMS) has been coupled with the Water Quality Analysis Simulation Program (WASP) to be used in a comprehensive analysis of water quality in Barnegat Bay, New Jersey. The coupler can spatially aggregate hydrodynamic information in ROMS cells into larger WASP segments. It can also be used to resample ROMS output at a finer temporal scale to meet WASP time-stepping
Authors
Zafer Define, Frederick J. Spitz, Vincent T. DePaul, Tim A. Wool
Analysis of Effects of 2003 and Full-Allocation Withdrawals in Critical Area 1, East-Central New Jersey
Critical Area 1 in east-central New Jersey was mandated in the early 1980s to address large drawdowns caused by increases in groundwater withdrawals. The aquifers involved include the Englishtown aquifer system, Wenonah-Mount Laurel aquifer, and the Upper and Middle Potomac-Raritan-Magothy aquifers. Groundwater levels recovered as a result of mandated cutbacks in withdrawals that began in the late
Authors
Frederick J. Spitz
Recovery of Ground-Water Levels from 1988 to 2003 and Analysis of Effects of 2003 and Full-Allocation Withdrawals in Critical Area 2, Southern New Jersey
Water levels in the Potomac-Raritan-Magothy aquifer system within Water Supply Critical Area 2 in the southern New Jersey Coastal Plain have recovered as a result of reductions in ground-water withdrawals initiated in the early 1990s. The Critical Area consists of the depleted zone and the threatened margin. The Potomac-Raritan-Magothy aquifer system consists of the Upper, Middle, and Lower aquife
Authors
Frederick J. Spitz, Vincent T. dePaul
Recovery of Ground-Water Levels From 1988 to 2003 and Analysis of Potential Water-Supply Management Options in Critical Area 1, East-Central New Jersey
Water levels in four confined aquifers in the New Jersey Coastal Plain within Water Supply Critical Area 1 have recovered as a result of reductions in ground-water withdrawals initiated by the State in the late 1980s. The aquifers are the Wenonah-Mount Laurel, the Upper and Middle Potomac-Raritan-Magothy, and Englishtown aquifer system. Because of increased water demand due to increased developmen
Authors
Frederick J. Spitz, Martha K. Watt, Vincent T. dePaul
Simulation of Surface-Water Conditions in the Nontidal Passaic River Basin, New Jersey
The Passaic River Basin, the third largest drainage basin in New Jersey, encompasses 950 mi2 (square miles) in the highly urbanized area outside New York City, with a population of 2 million. Water quality in the basin is affected by many natural and anthropogenic factors. Nutrient loading to the Wanaque Reservoir in the northern part of the basin is of particular concern and is caused partly by t
Authors
Frederick J. Spitz
Methods and computer programs to improve pathline resolution near weak sinks representing wells in MODFLOW and MODPATH ground-water-flow simulations
No abstract available.
Authors
Frederick J. Spitz
Simulated Effects of Alternative Pumping Strategies on Ground-Water-Flow Patterns and Areas Contributing Recharge to Selected Wells near Kenvil, Morris County, New Jersey
Ground-water-flow patterns and areas contributing recharge to supply wells change in response to new or altered pumping stresses. An understanding of these potential changes is essential for the effective evaluation of possible future water-supply alternatives, especially if the supply wells may be vulnerable to contamination from the land surface. Demand for water from a valley-fill and carbonate
Authors
Frederick J. Spitz, Robert S. Nicholson
Analysis of ground-water flow and saltwater encroachment in the shallow aquifer system of Cape May County, New Jersey
Cape May County, New Jersey, is on a natural peninsula that is virtually surrounded by saltwater. A calibrated quasi-three-dimensional sharp-interface model was used to simulate ground-water flow in the shallow aquifer system under two water-supply-development alternatives for a 30-year planning period. The alternatives involve modest increases in withdrawals in combination with desalination of br
Authors
Frederick J. Spitz
Evaluation of saltwater intrusion and travel time in the Atlantic City 800-foot sand, Cape May County, New Jersey, 1992, by use of a coupled-model approach and flow-path analysis
Regional and subregional ground-water-flow models were coupled, and the output was analyzed by a particle-tracking method. The results were then used to assess the effects of ground-water withdrawals on the flow of saltwater in the Atlantic City 800-foot sand in Cape May County, New Jersey, and to estimate the travel time from areas in which the chloride concentration of the ground water exceeds 2
Authors
L. M. Voronin, F. J. Spitz, S. D. McAuley
Hydrologic feasibility of water-supply-development alternatives in Cape May County, New Jersey
Increasing public-supply withdrawals in Cape May County, New Jersey associated with increasing residential and seasonal tourist populations have led to regionally lowered ground-water levels, a reversal of ground-water flow directions toward onshore, and landward encroachment of saltwater in the shallow aquifer system. The three aquifers composing the shallow system are, in order of increasing dep
Authors
F. J. Spitz
Ground-water hydrology and simulation of saltwater encroachment, shallow aquifer system of southern Cape May County, New Jersey
No abstract available.
Authors
F. J. Spitz, T. H. Barringer
WASP model used to simulate flow and eutrophication in the central Salem River, New Jersey
A one-dimensional surface-water quality model of the central Salem River Basin, New Jersey was developed to examine the causes of eutrophication and predict the effects of reduced point and nonpoint source nutrient loads on water quality. The model was developed using the USEPA WASP code. The model simulates channel flow and the fate and transport of dissolved oxygen, oxygen demands, nutrients, an
Science and Products
- Publications
Filter Total Items: 15
Simulation of flow and eutrophication in the central Salem River, New Jersey
The central Salem River in New Jersey is subject to periods of water-quality impairment, marked by elevated concentrations of phosphorus and chlorophyll-a, and low concentrations of and large diurnal swings in concentrations of dissolved oxygen. These seasonal eutrophic conditions are controlling factors for water quality in lower reaches, where the river is more lacustrine than in upper reaches,AuthorsFrederick J. Spitz, Vincent T. DePaulTowards a comprehensive water quality modeling of Barnegat Bay: Development of ROMS to WASP Coupler
The Regional Ocean Modeling System (ROMS) has been coupled with the Water Quality Analysis Simulation Program (WASP) to be used in a comprehensive analysis of water quality in Barnegat Bay, New Jersey. The coupler can spatially aggregate hydrodynamic information in ROMS cells into larger WASP segments. It can also be used to resample ROMS output at a finer temporal scale to meet WASP time-steppingAuthorsZafer Define, Frederick J. Spitz, Vincent T. DePaul, Tim A. WoolAnalysis of Effects of 2003 and Full-Allocation Withdrawals in Critical Area 1, East-Central New Jersey
Critical Area 1 in east-central New Jersey was mandated in the early 1980s to address large drawdowns caused by increases in groundwater withdrawals. The aquifers involved include the Englishtown aquifer system, Wenonah-Mount Laurel aquifer, and the Upper and Middle Potomac-Raritan-Magothy aquifers. Groundwater levels recovered as a result of mandated cutbacks in withdrawals that began in the lateAuthorsFrederick J. SpitzRecovery of Ground-Water Levels from 1988 to 2003 and Analysis of Effects of 2003 and Full-Allocation Withdrawals in Critical Area 2, Southern New Jersey
Water levels in the Potomac-Raritan-Magothy aquifer system within Water Supply Critical Area 2 in the southern New Jersey Coastal Plain have recovered as a result of reductions in ground-water withdrawals initiated in the early 1990s. The Critical Area consists of the depleted zone and the threatened margin. The Potomac-Raritan-Magothy aquifer system consists of the Upper, Middle, and Lower aquifeAuthorsFrederick J. Spitz, Vincent T. dePaulRecovery of Ground-Water Levels From 1988 to 2003 and Analysis of Potential Water-Supply Management Options in Critical Area 1, East-Central New Jersey
Water levels in four confined aquifers in the New Jersey Coastal Plain within Water Supply Critical Area 1 have recovered as a result of reductions in ground-water withdrawals initiated by the State in the late 1980s. The aquifers are the Wenonah-Mount Laurel, the Upper and Middle Potomac-Raritan-Magothy, and Englishtown aquifer system. Because of increased water demand due to increased developmenAuthorsFrederick J. Spitz, Martha K. Watt, Vincent T. dePaulSimulation of Surface-Water Conditions in the Nontidal Passaic River Basin, New Jersey
The Passaic River Basin, the third largest drainage basin in New Jersey, encompasses 950 mi2 (square miles) in the highly urbanized area outside New York City, with a population of 2 million. Water quality in the basin is affected by many natural and anthropogenic factors. Nutrient loading to the Wanaque Reservoir in the northern part of the basin is of particular concern and is caused partly by tAuthorsFrederick J. SpitzMethods and computer programs to improve pathline resolution near weak sinks representing wells in MODFLOW and MODPATH ground-water-flow simulations
No abstract available.AuthorsFrederick J. SpitzSimulated Effects of Alternative Pumping Strategies on Ground-Water-Flow Patterns and Areas Contributing Recharge to Selected Wells near Kenvil, Morris County, New Jersey
Ground-water-flow patterns and areas contributing recharge to supply wells change in response to new or altered pumping stresses. An understanding of these potential changes is essential for the effective evaluation of possible future water-supply alternatives, especially if the supply wells may be vulnerable to contamination from the land surface. Demand for water from a valley-fill and carbonateAuthorsFrederick J. Spitz, Robert S. NicholsonAnalysis of ground-water flow and saltwater encroachment in the shallow aquifer system of Cape May County, New Jersey
Cape May County, New Jersey, is on a natural peninsula that is virtually surrounded by saltwater. A calibrated quasi-three-dimensional sharp-interface model was used to simulate ground-water flow in the shallow aquifer system under two water-supply-development alternatives for a 30-year planning period. The alternatives involve modest increases in withdrawals in combination with desalination of brAuthorsFrederick J. SpitzEvaluation of saltwater intrusion and travel time in the Atlantic City 800-foot sand, Cape May County, New Jersey, 1992, by use of a coupled-model approach and flow-path analysis
Regional and subregional ground-water-flow models were coupled, and the output was analyzed by a particle-tracking method. The results were then used to assess the effects of ground-water withdrawals on the flow of saltwater in the Atlantic City 800-foot sand in Cape May County, New Jersey, and to estimate the travel time from areas in which the chloride concentration of the ground water exceeds 2AuthorsL. M. Voronin, F. J. Spitz, S. D. McAuleyHydrologic feasibility of water-supply-development alternatives in Cape May County, New Jersey
Increasing public-supply withdrawals in Cape May County, New Jersey associated with increasing residential and seasonal tourist populations have led to regionally lowered ground-water levels, a reversal of ground-water flow directions toward onshore, and landward encroachment of saltwater in the shallow aquifer system. The three aquifers composing the shallow system are, in order of increasing depAuthorsF. J. SpitzGround-water hydrology and simulation of saltwater encroachment, shallow aquifer system of southern Cape May County, New Jersey
No abstract available.AuthorsF. J. Spitz, T. H. Barringer - Data
WASP model used to simulate flow and eutrophication in the central Salem River, New Jersey
A one-dimensional surface-water quality model of the central Salem River Basin, New Jersey was developed to examine the causes of eutrophication and predict the effects of reduced point and nonpoint source nutrient loads on water quality. The model was developed using the USEPA WASP code. The model simulates channel flow and the fate and transport of dissolved oxygen, oxygen demands, nutrients, an