Publications
Filter Total Items: 113
Loss of volatile hydrocarbons from an LNAPL oil source Loss of volatile hydrocarbons from an LNAPL oil source
The light nonaqueous phase liquid (LNAPL) oil pool in an aquifer that resulted from a pipeline spill near Bemidji, Minnesota, was analyzed for volatile hydrocarbons (VHCs) to determine if the composition of the oil remains constant over time. Oil samples were obtained from wells at five locations in the oil pool in an anaerobic part of the glacial outwash aquifer. Samples covering a 21...
Authors
Mary Jo Baedecker, Robert P. Eganhouse, Barbara A. Bekins, Geoffrey N. Delin
In situ rates of sulfate reduction in response to geochemical perturbations In situ rates of sulfate reduction in response to geochemical perturbations
Rates of in situ microbial sulfate reduction in response to geochemical perturbations were determined using Native Organism Geochemical Experimentation Enclosures (NOGEEs), a new in situ technique developed to facilitate evaluation of controls on microbial reaction rates. NOGEEs function by first trapping a native microbial community in situ and then subjecting it to geochemical...
Authors
T.A. Kneeshaw, J.T. McGuire, Isabelle M. Cozzarelli, E.W. Smith
Fate and transport of petroleum hydrocarbons in the subsurface near Cass Lake, Minnesota Fate and transport of petroleum hydrocarbons in the subsurface near Cass Lake, Minnesota
The U.S. Geological Survey (USGS) investigated the natural attenuation of subsurface petroleum hydrocarbons leaked over an unknown number of years from an oil pipeline under the Enbridge Energy Limited Partnership South Cass Lake Pumping Station, in Cass Lake, Minnesota. Three weeks of field work conducted between May 2007 and July 2008 delineated a dissolved plume of aromatic...
Authors
Dina M. Drennan, Barbara A. Bekins, Ean Warren, Isabelle M. Cozzarelli, Mary Jo Baedecker, William N. Herkelrath, Geoffrey N. Delin, Robert J. Rosenbauer, Pamela L. Campbell
Pathways for arsenic from sediments to groundwater to streams: Biogeochemical processes in the Inner Coastal Plain, New Jersey, USA Pathways for arsenic from sediments to groundwater to streams: Biogeochemical processes in the Inner Coastal Plain, New Jersey, USA
The Cretaceous and Tertiary sediments that underlie the Inner Coastal Plain of New Jersey contain the arsenic-rich mineral glauconite. Streambed sediments in two Inner Coastal Plain streams (Crosswicks and Raccoon Creeks) that traverse these glauconitic deposits are enriched in arsenic (15–25 mg/kg), and groundwater discharging to the streams contains elevated levels of arsenic (>80 μg/L...
Authors
Julia L. Barringer, Adam Mumford, Lily Y. Young, Pamela A. Reilly, Jennifer L. Bonin, Robert Rosman
In situ measurements of volatile aromatic hydrocarbon biodegradation rates in groundwater In situ measurements of volatile aromatic hydrocarbon biodegradation rates in groundwater
Benzene and alkylbenzene biodegradation rates and patterns were measured using an in situ microcosm in a crude-oil contaminated aquifer near Bemidji, Minnesota. Benzene-D6, toluene, ethylbenzene, o-, m- and p-xylenes and four pairs of C3- and C4-benzenes were added to an in situ microcosm and studied over a 3-year period. The microcosm allowed for a mass-balance approach and...
Authors
I.M. Cozzarelli, B.A. Bekins, R.P. Eganhouse, E. Warren, H.I. Essaid
Processes affecting δ34S and δ18O values of dissolved sulfate in alluvium along the Canadian River, central Oklahoma, USA Processes affecting δ34S and δ18O values of dissolved sulfate in alluvium along the Canadian River, central Oklahoma, USA
The δ34S and δ18O values for dissolved sulfate in groundwater are commonly used in aquifer studies to identify sulfate reservoirs and describe biogeochemical processes. The utility of these data, however, often is compromised by mixing of sulfate sources within reservoirs and isotope fractionation during sulfur redox cycling. Our study shows that, after all potential sulfate sources are...
Authors
Michele L. Tuttle, George N. Breit, Isabelle M. Cozzarelli
Pore-water chemistry from the ICDP-USGS core hole in the Chesapeake Bay impact structure-Implications for paleohydrology, microbial habitat, and water resources Pore-water chemistry from the ICDP-USGS core hole in the Chesapeake Bay impact structure-Implications for paleohydrology, microbial habitat, and water resources
We investigated the groundwater system of the Chesapeake Bay impact structure by analyzing the pore-water chemistry in cores taken from a 1766-m-deep drill hole 10 km north of Cape Charles, Virginia. Pore water was extracted using high-speed centrifuges from over 100 cores sampled from a 1300 m section of the drill hole. The pore-water samples were analyzed for major cations and anions...
Authors
W. E. Sanford, M.A. Voytek, D.S. Powars, B.F. Jones, I.M. Cozzarelli, C.S. Cockell, R.P. Eganhouse
William "Bill" Back: an incisive geochemist and a great mentor. William "Bill" Back: an incisive geochemist and a great mentor.
[No abstract available]
Authors
M.J. Baedecker, W.W. Wood
Biogeochemistry at a wetland sediment-alluvial aquifer interface in a landfill leachate plume Biogeochemistry at a wetland sediment-alluvial aquifer interface in a landfill leachate plume
The biogeochemistry at the interface between sediments in a seasonally ponded wetland (slough) and an alluvial aquifer contaminated with landfill leachate was investigated to evaluate factors that can effect natural attenuation of landfill leachate contaminants in areas of groundwater/surface-water interaction. The biogeochemistry at the wetland-alluvial aquifer interface differed...
Authors
M.M. Lorah, I.M. Cozzarelli, J.K. Böhlke
Results of the chemical and isotopic analyses of sediment and ground water from alluvium of the Canadian River near a closed municipal landfill, Norman, Oklahoma, part 2 Results of the chemical and isotopic analyses of sediment and ground water from alluvium of the Canadian River near a closed municipal landfill, Norman, Oklahoma, part 2
Analytical results on sediment and associated ground water from the Canadian River alluvium collected subsequent to those described in Breit and others (2005) are presented in this report. The data presented herein were collected primarily to evaluate the iron and sulfur species within the sediment at well sites IC 36, IC 54, and IC South located at the USGS Norman Landfill study site...
Authors
George N. Breit, Michele L.W. Tuttle, Isabelle M. Cozzarelli, Cyrus J. Berry, Scott C. Christenson, Jeanne B. Jaeschke
By
Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Oklahoma-Texas Water Science Center, Reston Biogeochemical Processes in Groundwater Laboratory
Determination of dominant biogeochemical processes in a contaminated aquifer-wetland system using multivariate statistical analysis Determination of dominant biogeochemical processes in a contaminated aquifer-wetland system using multivariate statistical analysis
Determining the processes governing aqueous biogeochemistry in a wetland hydrologically linked to an underlying contaminated aquifer is challenging due to the complex exchange between the systems and their distinct responses to changes in precipitation, recharge, and biological activities. To evaluate temporal and spatial processes in the wetland-aquifer system, water samples were...
Authors
S. E. Baez-Cazull, J.T. McGuire, I.M. Cozzarelli, M.A. Voytek
Biogeochemistry of aquifer systems Biogeochemistry of aquifer systems
Many studies have examined the differences in bacterial numbers, composition, and activity between groundwater and sediment samples. The majority of the literature has suggested higher percentages of attached bacteria than of unattached bacteria in aquifer systems, including in pristine aquifers and in aquifers contaminated with petroleum, creosote, sewage, and landfill leachate. In...
Authors
Isabelle M. Cozzarelli, J.V. Weiss