Eric Jacobsen
Eric Jacobsen is a Hydrologist with the U.S. Geological Survey at the New Jersey Water Science Center located in Lawrenceville, NJ.
Experienced in groundwater work including several NAWQA studies on the water quality of New Jersey and regional North Atlantic coastal plain aquifers, concentrations and environmental fate of radium in domestic water systems, saltwater intrusion, effects of composted biosolids on shallow groundwater quality, and investigating hydrologic conditions in several small New Jersey drainage basins. Field experience includes extensive ground water sampling and installation of monitoring well networks.
Education and Certifications
B.S. in Geology from the State University of New York at Binghamton
Science and Products
Occurrence and geochemistry of radium in water from principal drinking-water aquifer systems of the United States
A total of 1270 raw-water samples (before treatment) were collected from 15 principal and other major aquifer systems (PAs) used for drinking water in 45 states in all major physiographic provinces of the USA and analyzed for concentrations of the Ra isotopes 224Ra, 226Ra and 228Ra establishing the framework for evaluating Ra occurrence. The US Environmental Protection Agency Maximum Contaminan
Authors
Z. Szabo, Vincent T. DePaul, J.M. Fischer, T. F. Kraemer, E. Jacobsen
Variability of mercury concentrations in domestic well water, New Jersey Coastal Plain
Concentrations of total (unfiltered) mercury (Hg) exceed the Maximum Contaminant Level (2 µg/L) in the acidic water withdrawn by more than 700 domestic wells from the areally extensive unconfined Kirkwood-Cohansey aquifer system. Background concentrations of Hg generally are <0.01 µg/L. The source of the Hg contamination has been hypothesized to arise from Hg of pesticide-application, atmospheric,
Authors
Zoltan Szabo, Julia L. Barringer, Eric Jacobsen, Nicholas P Smith, Robert A Gallagher, Andrew Sites
Environmental fate of Ra in cation-exchange regeneration brine waste disposed to septic tanks, New Jersey Coastal Plain, USA: migration to the water table
Fate of radium (Ra) in liquid regeneration brine wastes from water softeners disposed to septic tanks in the New Jersey Coastal Plain was studied. Before treatment, combined Ra (226Ra plus 228Ra) concentrations (maximum, 1.54 Bq L−1) exceeded the 0.185 Bq L−1 Maximum Contaminant Level in 4 of 10 studied domestic-well waters (median pH, 4.90). At the water table downgradient from leachfields, combi
Authors
Zoltan Szabo, Eric Jacobsen, Thomas F. Kraemer, Bahman Parsa
Hydrostratigraphy, soil/sediment chemistry, and water quality, Potomac-Raritan-Magothy aquifer system, Puchack Well Field Superfund site and vicinity, Pennsauken Township, Camden County, New Jersey, 1997-2001
Drinking-water supplies from the Potomac-Raritan-Magothy aquifer system at the Puchack well field in Pennsauken Township, Camden County, New Jersey, have been contaminated by hexavalent chromium-the most toxic and mobile form-at concentrations exceeding the New Jersey maximum contaminant level of 100 micrograms per liter. Also, scattered but widespread instances of volatile organic compounds (prim
Authors
Julia L. Barringer, Richard L. Walker, Eric Jacobsen, Pamela Jankowski
Concentrations and environmental fate of Ra in cation-exchange regeneration brine waste disposed to septic tanks and accumulation in sludge, New Jersey Coastal Plain, USA
Concentrations of Ra in liquid and solid wastes generated from 15 softeners treating domestic well waters from New Jersey Coastal Plain aquifers (where combined Ra (226Ra plus 228Ra) concentrations commonly exceed 0.185 Bq L−1) were determined. Softeners, when maintained, reduced combined Ra about 10-fold (<0.024 Bq L−1). Combined Ra exceeded 0.185 Bq L−1 at 1 non-maintained system. Combined Ra wa
Authors
Z. Szabo, E. Jacobsen, T. F. Kraemer, B. Parsa
Reconnaissance of hydrogeology and ground-water quality in Pennsauken Township and vicinity, Camden County, New Jersey, 1996-98
No abstract available.
Authors
Richard L. Walker, Eric Jacobsen
Ground-water quality, water levels, and precipitation at the biosolids study site, Lakehurst Naval Air Engineering Station, New Jersey, 1995-97
No abstract available.
Authors
Eric Jacobsen
Effects of land application of composted biosolids on ground water and native vegetation in the New Jersey Pinelands
No abstract available.
Authors
Eric Jacobsen
Hydrogeology and ground-water flow, fractured Mesozoic structural-basin rocks, Stony Brook, Beden Brook, and Jacobs Creek drainage basins, west-central New Jersey
This study was undertaken to characterize ground- water flow in the Stony Brook, Beden Brook, and Jacobs Creek drainage basins in west-central New Jersey. The 89-square-mile study area is underlain by dipping beds of fractured siltstone, shale, and sandstone and by massive diabase sills. In all of the rocks, the density of interconnected fractures decreases with depth. A major fault extends throug
Authors
Jean C. Lewis, Eric Jacobsen
Hydrologic conditions in the Jacobs Creek, Stony Brook, and Beden Brook drainage basins, west-central New Jersey, 1986-88
Data on the quantity and quality of groundwater and surface water in the drainage basins of Jacobs Creek, Stony Brook, and Beden Brook upstream from U.S. Route 206 in west-central New Jersey were collected from October 1, 1986, through September 30, 1988. Water levels measured in 74 wells ranged from 49 to 453 ft above sea level. The water-table surface generally mimicked topography; however, the
Authors
Eric Jacobsen, M. A. Hardy, B. A. Kurtz
Hydrogeochemical data from an acidic deposition study at McDonalds Branch basin in the New Jersey Pinelands, 1983-86
Data from a 1983-86 acidic-deposition study at McDonalds Branch basin, a small (2.35-sq-mi) forested watershed in Lebanon State Forest, New Jersey include mineralogy of soil and depositional clays; physical and chemical analyses of soils; hydrologic measurements (precipitation and throughfall amounts, stream stage and discharge, and water-table altitudes); and water quality data from precipitation
Authors
D. G. Lord, J. L. Barringer, P.A. Johnsson, P. F. Schuster, R.L. Walker, J.E. Fairchild, B.N. Sroka, Eric Jacobsen
Science and Products
- Publications
Occurrence and geochemistry of radium in water from principal drinking-water aquifer systems of the United States
A total of 1270 raw-water samples (before treatment) were collected from 15 principal and other major aquifer systems (PAs) used for drinking water in 45 states in all major physiographic provinces of the USA and analyzed for concentrations of the Ra isotopes 224Ra, 226Ra and 228Ra establishing the framework for evaluating Ra occurrence. The US Environmental Protection Agency Maximum ContaminanAuthorsZ. Szabo, Vincent T. DePaul, J.M. Fischer, T. F. Kraemer, E. JacobsenVariability of mercury concentrations in domestic well water, New Jersey Coastal Plain
Concentrations of total (unfiltered) mercury (Hg) exceed the Maximum Contaminant Level (2 µg/L) in the acidic water withdrawn by more than 700 domestic wells from the areally extensive unconfined Kirkwood-Cohansey aquifer system. Background concentrations of Hg generally are <0.01 µg/L. The source of the Hg contamination has been hypothesized to arise from Hg of pesticide-application, atmospheric,AuthorsZoltan Szabo, Julia L. Barringer, Eric Jacobsen, Nicholas P Smith, Robert A Gallagher, Andrew SitesEnvironmental fate of Ra in cation-exchange regeneration brine waste disposed to septic tanks, New Jersey Coastal Plain, USA: migration to the water table
Fate of radium (Ra) in liquid regeneration brine wastes from water softeners disposed to septic tanks in the New Jersey Coastal Plain was studied. Before treatment, combined Ra (226Ra plus 228Ra) concentrations (maximum, 1.54 Bq L−1) exceeded the 0.185 Bq L−1 Maximum Contaminant Level in 4 of 10 studied domestic-well waters (median pH, 4.90). At the water table downgradient from leachfields, combiAuthorsZoltan Szabo, Eric Jacobsen, Thomas F. Kraemer, Bahman ParsaHydrostratigraphy, soil/sediment chemistry, and water quality, Potomac-Raritan-Magothy aquifer system, Puchack Well Field Superfund site and vicinity, Pennsauken Township, Camden County, New Jersey, 1997-2001
Drinking-water supplies from the Potomac-Raritan-Magothy aquifer system at the Puchack well field in Pennsauken Township, Camden County, New Jersey, have been contaminated by hexavalent chromium-the most toxic and mobile form-at concentrations exceeding the New Jersey maximum contaminant level of 100 micrograms per liter. Also, scattered but widespread instances of volatile organic compounds (primAuthorsJulia L. Barringer, Richard L. Walker, Eric Jacobsen, Pamela JankowskiConcentrations and environmental fate of Ra in cation-exchange regeneration brine waste disposed to septic tanks and accumulation in sludge, New Jersey Coastal Plain, USA
Concentrations of Ra in liquid and solid wastes generated from 15 softeners treating domestic well waters from New Jersey Coastal Plain aquifers (where combined Ra (226Ra plus 228Ra) concentrations commonly exceed 0.185 Bq L−1) were determined. Softeners, when maintained, reduced combined Ra about 10-fold (<0.024 Bq L−1). Combined Ra exceeded 0.185 Bq L−1 at 1 non-maintained system. Combined Ra waAuthorsZ. Szabo, E. Jacobsen, T. F. Kraemer, B. ParsaReconnaissance of hydrogeology and ground-water quality in Pennsauken Township and vicinity, Camden County, New Jersey, 1996-98
No abstract available.AuthorsRichard L. Walker, Eric JacobsenGround-water quality, water levels, and precipitation at the biosolids study site, Lakehurst Naval Air Engineering Station, New Jersey, 1995-97
No abstract available.AuthorsEric JacobsenEffects of land application of composted biosolids on ground water and native vegetation in the New Jersey Pinelands
No abstract available.AuthorsEric JacobsenHydrogeology and ground-water flow, fractured Mesozoic structural-basin rocks, Stony Brook, Beden Brook, and Jacobs Creek drainage basins, west-central New Jersey
This study was undertaken to characterize ground- water flow in the Stony Brook, Beden Brook, and Jacobs Creek drainage basins in west-central New Jersey. The 89-square-mile study area is underlain by dipping beds of fractured siltstone, shale, and sandstone and by massive diabase sills. In all of the rocks, the density of interconnected fractures decreases with depth. A major fault extends througAuthorsJean C. Lewis, Eric JacobsenHydrologic conditions in the Jacobs Creek, Stony Brook, and Beden Brook drainage basins, west-central New Jersey, 1986-88
Data on the quantity and quality of groundwater and surface water in the drainage basins of Jacobs Creek, Stony Brook, and Beden Brook upstream from U.S. Route 206 in west-central New Jersey were collected from October 1, 1986, through September 30, 1988. Water levels measured in 74 wells ranged from 49 to 453 ft above sea level. The water-table surface generally mimicked topography; however, theAuthorsEric Jacobsen, M. A. Hardy, B. A. KurtzHydrogeochemical data from an acidic deposition study at McDonalds Branch basin in the New Jersey Pinelands, 1983-86
Data from a 1983-86 acidic-deposition study at McDonalds Branch basin, a small (2.35-sq-mi) forested watershed in Lebanon State Forest, New Jersey include mineralogy of soil and depositional clays; physical and chemical analyses of soils; hydrologic measurements (precipitation and throughfall amounts, stream stage and discharge, and water-table altitudes); and water quality data from precipitationAuthorsD. G. Lord, J. L. Barringer, P.A. Johnsson, P. F. Schuster, R.L. Walker, J.E. Fairchild, B.N. Sroka, Eric Jacobsen