Coupled hydrology and biogeochemistry of Paleocene–Eocene coal beds, northern Gulf of Mexico
Jennifer C. McIntosh, Peter D. Warwick, Anna M. Martini, Stephen G. Osborn
2010, GSA Bulletin (122) 1248-1264
Thirty-six formation waters, gas, and microbial samples were collected and analyzed from natural gas and oil wells producing from the Paleocene to Eocene Wilcox Group coal beds and adjacent sandstones in north-central Louisiana, USA, to investigate the role hydrology plays on the generation and distribution of microbial methane. Major ion...
Estimating groundwater recharge
Richard W. Healy
2010, Book
Understanding groundwater recharge is essential for successful management of water resources and modeling fluid and contaminant transport within the subsurface. This book provides a critical evaluation of the theory and assumptions that underlie methods for estimating rates of groundwater recharge. Detailed explanations of the methods are provided - allowing readers...
Comparison of transport and attachment behaviors of Cryptosporidium parvum oocysts and oocyst-sized microspheres being advected through three minerologically different granular porous media
Arvind Mohanram, Chittaranjan Ray, Ronald W. Harvey, David W. Metge, Joseph N. Ryan, Jon Chorover, D. D. Eberl
2010, Water Research (44) 5334-5344
In order to gain more information about the fate of Cryptosporidium parvum oocysts in tropical volcanic soils, the transport and attachment behaviors of oocysts and oocyst-sized polystyrene microspheres were studied in the presence of two soils. These soils were chosen because of their differing chemical and physical properties, i.e., an organic-rich (43–46%...
Assessing the response of the Pamlico Sound, North Carolina, USA to human and climatic disturbances: Management implications
H.W. Paerl, B.L. Peierls, N. S. Hall, A. R. Joyner, R.R. Christian, Jerad D. Bales, S.R. Riggs
2010, Book chapter, Coastal lagoons: Critical habitats of environmental change
The Pamlico Sound (PS) with its sub-estuaries is the largest lagoonal ecosystem in the United States. It exhibits periodically strong salinity stratification and an average freshwater residence time of 1 year for the sound proper. This relatively long residence time promotes effective use and cycling of nutrients, allowing the system...
Mercury dynamics in relation to dissolved organic carbon concentration and quality during high flow events in three northeastern U.S. streams
Jason A. Dittman, James B. Shanley, Charles T. Driscoll, George R. Aiken, Ann T. Chalmers, Janet E. Towse, Pranesh Selvendiran
2010, Water Resources Research (46)
Mercury (Hg) contamination is widespread in remote areas of the northeastern United States. Forested uplands have accumulated a large reservoir of Hg in soil from decades of elevated anthropogenic deposition that can be released episodically to stream water during high flows. The objective of this study was to evaluate spatial...
Comparison of XAD with other dissolved lignin isolation techniques and a compilation of analytical improvements for the analysis of lignin in aquatic settings
Robert G. M. Spencer, George R. Aiken, Rachael Y. Dyda, Kenna D. Butler, Brian A. Bergamaschi, Peter J. Hernes
2010, Organic Geochemistry (41) 445-453
This manuscript highlights numerous incremental improvements in dissolved lignin measurements over the nearly three decades since CuO oxidation of lignin phenols was first adapted for environmental samples. Intercomparison of the recovery efficiency of three common lignin phenol concentration and isolation techniques, namely XAD, C18with both CH3OH (C18M) and CH3CN (C18A)...
Source water controls on the character and origin of dissolved organic matter in streams of the Yukon River basin, Alaska
Jonathan A. O’Donnell, George R. Aiken, Evan S. Kane, Jeremy B. Jones
2010, Journal of Geophysical Research G: Biogeosciences (115) 1-12
Climate warming and permafrost degradation at high latitudes will likely impact watershed hydrology, and consequently, alter the concentration and character of dissolved organic carbon (DOC) in northern rivers. We examined seasonal variation of DOC chemistry in 16 streams of the Yukon River basin, Alaska. Our primary objective was to evaluate...
Multiple well-shutdown tests and site-scale flow simulation in fractured rocks
Claire R. Tiedeman, Pierre J. Lacombe, Daniel J. Goode
2010, Groundwater (48) 401-415
A new method was developed for conducting aquifer tests in fractured-rock flow systems that have a pump-and-treat (P&T) operation for containing and removing groundwater contaminants. The method involves temporary shutdown of individual pumps in wells of the P&T system. Conducting aquifer tests in this manner has several advantages, including (1)...
Brine delineation and monitoring with electrical resistivity tomography and electromagnetic borehole logging at the Fort Knox well field near West Point, Kentucky
Rory Henderson, Michael D. Unthank, Douglas D. Zettwoch, John W. Lane Jr.
2010, Conference Paper, Symposium on the Application of Geophysics to Engineering and Environmental Problems 2010
The potable water system at Fort Knox is threatened by brine contamination from improperly abandoned natural gas exploration wells. The Fort Knox well field is located near the town of West Point, Kentucky, in the flood plain of the Ohio River. At the site, unconsolidated sediments approximately 30 – 40...
Three-dimensional benchmark for variable-density flow and transport simulation: matching semi-analytic stability modes for steady unstable convection in an inclined porous box
Clifford I. Voss, Craig T. Simmons, Neville I. Robinson
2010, Hydrogeology Journal (18) 5-23
This benchmark for three-dimensional (3D) numerical simulators of variable-density groundwater flow and solute or energy transport consists of matching simulation results with the semi-analytical solution for the transition from one steady-state convective mode to another in a porous box. Previous experimental and analytical studies of natural convective flow in an...
Tamarisk biocontrol in the western United States: Ecological and societal implications
Kevin Hultine, Jayne Belnap, Charles van Riper III, James R Ehleringer, Philip E. Dennison, Martha E. Lee, Pamela L Nagler, Keirith A. Snyder, Shauna M. Uselman, Jason B. West
2010, Frontiers in Ecology and the Environment (8) 467-474
Tamarisk species (genus Tamarix), also commonly known as saltcedar, are among the most successful plant invaders in the western United States. At the same time, tamarisk has been cited as having enormous economic costs. Accordingly, local, state, and federal agencies have undertaken considerable efforts to eradicate this invasive plant and...
Mercury contamination in three species of anuran amphibians from the Cache Creek watershed, California, USA
Roger L. Hothem, Mark R. Jennings, John J. Crayon
2010, Environmental Monitoring and Assessment (163) 433-448
Fish and wildlife may bioaccumulate mercury (Hg) to levels that adversely affect reproduction, growth, and survival. Sources of Hg within the Cache Creek Watershed in northern California have been identified, and concentrations of Hg in invertebrates and fish have been documented. However, bioaccumulation of Hg by amphibians has not been...
Monitoring and characterizing natural hazards with satellite InSAR imagery
Zhong Lu, Jixian Zhang, Yonghong Zhang, Daniel Dzurisin
2010, Annals of GIS (16) 55-66
Interferometric synthetic aperture radar (InSAR) provides an all-weather imaging capability for measuring ground-surface deformation and inferring changes in land surface characteristics. InSAR enables scientists to monitor and characterize hazards posed by volcanic, seismic, and hydrogeologic processes, by landslides and wildfires, and by human activities such as mining and fluid extraction...
Contributions of nitrogen to the Barnegat Bay-Little Egg Harbor Estuary: Updated loading estimates
Christine M. Wieben, Ronald J. Baker
2009, Report, Barnegat Bay Partnership State of the Bay Technical Report
Based on the most recent and most accurate data available through 2008, the total load of nitrogen to the Barnegat Bay‐Little Egg Harbor (BB‐LEH) estuary from the most substantial sources (surface water, including surface‐water discharge and direct storm runoff; ground‐water discharge; and atmospheric deposition) is estimated to be 650,000 kilograms...
Responses of stream nitrate and dissolved organic carbon loadings to hydrological forcing and climate change in an upland forest of the northeast USA
Stephen D. Sebestyen, Elizabeth W. Boyer, James B. Shanley
2009, Journal of Geophysical Research (114)
[1] In coming decades, higher annual temperatures, increased growing season length, and increased dormant season precipitation are expected across the northeastern United States in response to anthropogenic forcing of global climate. We synthesized long-term stream hydrochemical data from the Sleepers River Research Watershed in Vermont, United States, to explore the...
Climate and hydrological changes in the northeastern United States: recent trends and implications for forested and aquatic ecosystems
Thomas G. Huntington, Andrew D. Richardson, Kevin J. McGuire, Katharine Hayhoe
2009, Canadian Journal of Forest Research (39) 199-212
We review twentieth century and projected twenty-first century changes in climatic and hydrologic conditions in the northeastern United States and the implications of these changes for forest ecosystems. Climate warming and increases in precipitation and associated changes in snow and hydrologic regimes have been observed over the last century, with...
Changes in reproductive biomarkers in an endangered fish species (bonytail chub, Gila elegans) exposed to low levels of organic wastewater compounds in a controlled experiment
David B. Walker, Nicholas V. Paretti, Gail Cordy, Timothy S. Gross, Steven D. Zaugg, Edward T. Furlong, Dana W. Kolpin, William J. Matter, Jessica Gwinn, Dennis McIntosh
2009, Aquatic Toxicology (95) 133-143
In arid regions of the southwestern United States, municipal wastewater treatment plants commonly discharge treated effluent directly into streams that would otherwise be dry most of the year. A better understanding is needed of how effluent-dependent waters (EDWs) differ from more natural aquatic ecosystems and the ecological effect of low...
Channel water balance and exchange with subsurface flow along a mountain headwater stream in Montana, United States
R.A. Payn, M.N. Gooseff, B.L. McGlynn, K.E. Bencala, S.M. Wondzell
2009, Water Resources Research (45)
Channel water balances of contiguous reaches along streams represent a poorly understood scale of stream-subsurface interaction. We measured reach water balances along a headwater stream in Montana, United States, during summer base flow recessions. Reach water balances were estimated from series of tracer tests in 13 consecutive reaches delineated evenly...
Introduction to paleoenvironments of Bear Lake, Utah and Idaho, and its catchment
Joseph G. Rosenbaum, Darrell S. Kaufman
2009, Special Paper of the Geological Society of America (450) v-xiii
In 1996 a group led by the late Kerry Kelts (University of Minnesota) and Robert Thompson (U.S. Geological Survey) acquired three piston cores (BL96-1, -2, and -3) from Bear Lake. The coring arose from their recognition of Bear Lake as a potential repository of long records of paleoenvironmental change. They...
Investigating hydraulic connections and the origin of water in a mine tunnel using stable isotopes and hydrographs
Katherine Walton-Day, Eileen Poeter
2009, Applied Geochemistry (24) 2266-2282
Turquoise Lake is a water-supply reservoir located north of the historic Sugarloaf Mining district near Leadville, Colorado, USA. Elevated water levels in the reservoir may increase flow of low-quality water from abandoned mine tunnels in the Sugarloaf District and degrade water quality downstream. The objective of this study was to...
Evaluation of methods and uncertainties in the water budget
Thomas C. Winter, Donald O. Rosenberry
Thomas C. Winter, Gene E. Likens, editor(s)
2009, Book chapter, Mirror Lake: Interactions among air, land, and water
Water budget studies of Mirror Lake aim to measure hydrologic components interacting with the lake as accurately as possible. However, measurements of water budget components are subject to some degree of uncertainty. This chapter describes the methods used to quantify water budget components of Mirror Lake in detail. It examines...
Hydrologic processes and the water budget: Chapter 2
Donald O. Rosenberry, Thomas C. Winter
Thomas C. Winter, Gene E. Likens, editor(s)
2009, Book chapter, Mirror Lake: Interactions among air, land, and water
This chapter focuses on the hydrological setting of Mirror Lake and its water budget. It first describes the glacial deposits and bedrock topography in the Mirror Lake area. It then provides an overview of the hydrologic processes associated with Mirror Lake and examines the field and analytical methods used to...
The occurrence of antibiotics in an urban watershed: From wastewater to drinking water
A.J. Watkinson, E.J. Murby, Dana W. Kolpin, S.D. Costanzo
2009, Science of the Total Environment (407) 2711-2723
The presence of 28 antibiotics in three hospital effluents, five wastewater treatment plants (WWTPs), six rivers and a drinking water storage catchment were investigated within watersheds of South–East Queensland, Australia. All antibiotics were detected at least once, with the exception of the polypeptide bacitracin which was not detected at all....
Low-flow frequency and flow duration of selected South Carolina streams in the Pee Dee River basin through March 2007
Toby D. Feaster, Wladmir B. Guimaraes
2009, Open-File Report 2009-1171
Part of the mission of the South Carolina Department of Health and Environmental Control and the South Carolina Department of Natural Resources is to protect and preserve South Carolina's water resources. Doing so requires an ongoing understanding of streamflow characteristics of the rivers and streams in South Carolina. A particular...
Estimated use of water in Alabama in 2005
Susan S. Hutson, Thomas M. Littlepage, Michael J. Harper, James O. Tinney
2009, Scientific Investigations Report 2009-5163
Water use in Alabama was about 9,958 million gallons per day (Mgal/d) during 2005. Estimates of withdrawals by source indicate that total surface-water withdrawals were about 9,467 Mgal/d (95 percent of the total withdrawals) and the remaining 491 Mgal/d (5 percent) were from ground water. More surface water than ground...
