Hydrogeologic data update for the stratified-drift aquifer in the Sprout and Fishkill Creek valleys, Dutchess County, New York
Richard J. Reynolds, F.J. Calef III
2011, Scientific Investigations Map 3136
The hydrogeology of the stratified-drift aquifer in the Sprout Creek and Fishkill Creek valleys in southern Dutchess County, New York, previously investigated by the U.S. Geological Survey (USGS) in 1982, was updated through the use of new well data made available through the New York State Department of Environmental Conservation's...
Use of diverse geochemical data sets to determine sources and sinks of nitrate and methane in groundwater, Garfield County, Colorado, 2009
P.B. McMahon, J.C. Thomas, A.G. Hunt
2011, Scientific Investigations Report 2010-5215
Previous water-quality assessments reported elevated concentrations of nitrate and methane in water from domestic wells screened in shallow zones of the Wasatch Formation, Garfield County, Colorado. In 2009, the U.S. Geological Survey, in cooperation with the Colorado Department of Public Health and Environment, analyzed samples collected from 26 domestic wells...
Estimates of tracer-based piston-flow ages of groundwater from selected sites: National Water-Quality Assessment Program, 1992–2005
Stephen R. Hinkle, Stephanie D. Shapiro, Niel Plummer, Eurybiades Busenberg, Peggy K. Widman, Gerolamo C. Casile, Julian E. Wayland
2011, Scientific Investigations Report 2010-5229
This report documents selected age data interpreted from measured concentrations of environmental tracers in groundwater from 1,399 National Water-Quality Assessment (NAWQA) Program groundwater sites across the United States. The tracers of interest were chlorofluorocarbons (CFCs), sulfur hexafluoride (SF6), and tritium/helium-3 (3H/3He).Tracer data compiled for this analysis primarily were from wells...
Connection equation and shaly-sand correction for electrical resistivity
Myung W. Lee
2011, Scientific Investigations Report 2011-5005
Estimating the amount of conductive and nonconductive constituents in the pore space of sediments by using electrical resistivity logs generally loses accuracy where clays are present in the reservoir. Many different methods and clay models have been proposed to account for the conductivity of clay (termed the shaly-sand correction). In...
The effects of sediment and mercury mobilization in the South Yuba River and Humbug Creek confluence area, Nevada County, California: Concentrations, speciation and environmental fate - Part 2: Laboratory Experiments
Mark Marvin-DiPasquale, Jennifer L. Agee, Eangelos Kakouros, Le H. Kieu, Jacob A. Fleck, Charles N. Alpers
2011, Open-File Report 2010-1325-B
No abstract available....
Effects of Simulated Land-Use Changes on Water Quality of Lake Maumelle, Arkansas
Rheannon M. Hart, Drew A. Westerman, James C. Petersen, W. Reed Green, Jeanne L. De Lanois
2011, Scientific Investigations Report 2010-5239
Lake Maumelle is one of two principal drinking-water supplies for the Little Rock and North Little Rock metropolitan areas. Lake Maumelle and the Maumelle River (its primary tributary) are more pristine than most other reservoirs and streams in the region. However, as the Lake Maumelle watershed becomes increasingly more urbanized...
Methods for evaluating in-stream attenuation of trace organic compounds
Jeffrey Writer, Steffanie H. Keefe, Joseph N. Ryan, Imma Ferrer, Michael E Thurman, Larry B. Barber
2011, Applied Geochemistry (26) S344-S345
Wastewater treatment plants are often the most substantial contributor of trace organic compounds including pharmaceuticals, steroidal hormones, and surfactants to surface waters. Studying stream reaches below wastewater treatment plants provide valuable information on the environmental persistence of these compounds. Three methods for conducting field...
Crude oil at the Bemidji Site: 25 years of monitoring, modeling, and understanding
Hedeff I. Essaid, Barbara A. Bekins, William N. Herkelrath, Geoffrey N. Delin
2011, Ground Water (49) 706-726
The fate of hydrocarbons in the subsurface near Bemidji, Minnesota, has been investigated by a multidisciplinary group of scientists for over a quarter century. Research at Bemidji has involved extensive investigations of multiphase flow and transport, volatilization, dissolution, geochemical interactions, microbial populations, and biodegradation with the...
A tree-ring reconstruction of the salinity gradient in the northern estuary of San Francisco Bay
David W. Stahle, Daniel Griffin, Malcolm K. Cleaveland, Jesse R. Edmondson, D.J. Burnette, John T. Abatzoglou, Kelly Redmond, David M. Meko, Michael D. Dettinger, Daniel Cayan, Matthew D. Therrell
2011, San Francisco Estuary and Watershed Science (9)
Blue oak tree-ring chronologies correlate highly with winter–spring precipitation totals over California, with Sacramento and San Joaquin river stream flow, and with seasonal variations in the salinity gradient in San Francisco Bay. The convergence of fresh and saline currents can influence...
Contributions of Phosphorus from Groundwater to Streams in the Piedmont, Blue Ridge, and Valley and Ridge Physiographic Provinces, Eastern United States
Judith M. Denver, Charles A. Cravotta III,, Scott W. Ator, Bruce D. Lindsey
2011, Scientific Investigations Report 2010-5176
Phosphorus from natural and human sources is likely to be discharged from groundwater to streams in certain geochemical environments. Water-quality data collected from 1991 through 2007 in paired networks of groundwater and streams in different hydrogeologic and land-use settings of the Piedmont, Blue Ridge, and Valley and Ridge Physiographic Provinces...
Multilevel groundwater monitoring of hydraulic head and temperature in the eastern Snake River Plain aquifer, Idaho National Laboratory, Idaho, 2007-08
Jason C. Fisher, Brian V. Twining
2011, Scientific Investigations Report 2010-5253
During 2007 and 2008, the U.S. Geological Survey, in cooperation with the U.S. Department of Energy, collected quarterly depth-discrete measurements of fluid pressure and temperature in six boreholes located in the eastern Snake River Plain aquifer of Idaho. Each borehole was instrumented with a multilevel monitoring system consisting of a...
Mountain Glaciers and Ice Caps
Maria Ananichheva, Anthony Arendt, Jon-Ove Hagen, Regine Hock, Edward G. Josberger, R. Dan Moore, William Tad Pfeffer, Gabriel J. Wolken
2011, Book chapter, Snow, Water, Ice and Permafrost in the Arctic (SWIPA) 2011
In addition to the Greenland Ice Sheet, the Arctic contains a diverse array of smaller glaciers ranging from small cirque glaciers to large ice caps with areas up to 20 000 km 2 . Together, these glaciers cover an area of more than 400 000 km 2 , over half the global area of...
The hypothalamus–pituitary–thyroid axis in teleosts and amphibians: Endocrine disruption and its consequences to natural populations
J.A. Carr, Reynaldo Patino
2011, General and Comparative Endocrinology (170) 299-312
Teleosts and pond-breeding amphibians may be exposed to a wide variety of anthropogenic, waterborne contaminants that affect the hypothalamus-pituitary-thyroid (HPT) axis. Because thyroid hormone is required for their normal development and reproduction, the potential impact of HPT-disrupting contaminants on natural teleost and amphibian populations raises special concern. There is laboratory...
Relative abundance and distribution of fishes and crayfish at Ash Meadows National Wildlife Refuge, Nye County, Nevada, 2007-08
G. Gary Scoppettone, Peter Rissler, Danielle Johnson, Mark Hereford
2011, Open-File Report 2011-1017
This study provides baseline data of native and non-native fish populations in Ash Meadows National Wildlife Refuge (NWR), Nye County, Nevada, that can serve as a gauge in native fish enhancement efforts. In support of Carson Slough restoration, comprehensive surveys of Ash Meadows NWR fishes were conducted seasonally from fall...
Elevation of the March - April 2010 flood high water in selected river reaches in central and eastern Massachusetts
Phillip J. Zarriello, Gardner C. Bent
2011, Open-File Report 2010-1315
A series of widespread, large, low-pressure systems in southern New England in late February through late March 2010 resulted in record, or near record, rainfall and runoff. The total rainfall in the region during this period ranged from about 17 to 25 inches, which coupled with seasonal low evaporation, resulted...
Overview of the ARkStorm scenario
Keith Porter, Anne Wein, Charles N. Alpers, Allan Baez, Patrick L. Barnard, James Carter, Alessandra Corsi, James Costner, Dale Cox, Tapash Das, Mike Dettinger, James Done, Charles Eadie, Marcia Eymann, Justin Ferris, Prasad Gunturi, Mimi Hughes, Robert Jarrett, Laurie Johnson, Hanh Dam Le-Griffin, David Mitchell, Suzette Morman, Paul Neiman, Anna Olsen, Suzanne Perry, Geoffrey Plumlee, Martin Ralph, David Reynolds, Adam Rose, Kathleen Schaefer, Julie Serakos, William Siembieda, Jonathan D. Stock, David Strong, Ian Sue Wing, Alex Tang, Pete Thomas, Ken Topping, Chris Wills, Lucile Jones
2011, Open-File Report 2010-1312
The U.S. Geological Survey, Multi Hazards Demonstration Project (MHDP) uses hazards science to improve resiliency of communities to natural disasters including earthquakes, tsunamis, wildfires, landslides, floods and coastal erosion. The project engages emergency planners, businesses, universities, government agencies, and others in preparing for major natural disasters. The project also helps...
Approaches to highly parameterized inversion: Pilot-point theory, guidelines, and research directions
John E. Doherty, Michael N. Fienen, Randall J. Hunt
2011, Scientific Investigations Report 2010-5168
Pilot points have been used in geophysics and hydrogeology for at least 30 years as a means to bridge the gap between estimating a parameter value in every cell of a model and subdividing models into a small number of homogeneous zones. Pilot points serve as surrogate parameters at which...
Characterization of hydrology and salinity in the Dolores project area, McElmo Creek region, southwest Colorado, water years 1978-2006
Rodney J. Richards, Kenneth J. Leib
2011, Scientific Investigations Report 2010-5218
Increasing salinity loading in the Colorado River has become a major concern for agricultural and municipal water supplies. The Colorado Salinity Control Act was implemented in 1974 to protect and enhance the quality of water in the Colorado River Basin. The U.S. Geological Survey, in cooperation with the Bureau of...
Upper Colorado River Basin Climate Effects Network
Jayne Belnap, Donald Campbell, Jeff Kershner
2011, Fact Sheet 2010-3092
The Upper Colorado River Basin (UCRB) Climate Effects Network (CEN) is a science team established to provide information to assist land managers in future decision making processes by providing a better understanding of how future climate change, land use, invasive species, altered fire cycles, human systems, and the interactions among...
Geochemical characteristics of Holocene laminated sapropel (unit II) and underlying lacustrine unit III in the Black Sea
Walter E. Dean, Michael A. Arthur
2011, Open-File Report 2010-1323
eg 1 of the 1988 R/V Knorr expeditions to the Black Sea recovered 90 gravity and box cores. The longest recovery by gravity cores was about 3 meters, with an average of about 2.5 meters, recovering all of the Holocene and upper Pleistocene sections in the Black Sea. During the...
Use of cover habitat by bull trout, Salvelinus confluentus, and lake trout, Salvelinus namaycush, in a laboratory environment
Michael H. Meeuwig, Christopher S. Guy, Wade A. Fredenberg
2011, Environmental Biology of Fishes (90) 367-378
Lacustrine-adfluvial bull trout, Salvelinus confluentus, migrate from spawning and rearing streams to lacustrine environments as early as age 0. Within lacustrine environments, cover habitat provides refuge from potential predators and is a resource that is competed for if limiting. Competitive interactions between bull trout and other species could result in bull...
Does prescribed fire benefit wetland vegetation?
C. Flores, D.L. Bounds, D.E. Ruby
2011, Wetlands (31) 35-44
The effects of fire on wetland vegetation in the mid-Atlantic region of the United States are poorly known, despite the historical use of fire by federal, state, and private landowners in the Chesapeake Bay Region. Prescribed fire is widely used by land managers to promote vegetation that is beneficial to...
Distribution and habitat associations of breeding secretive marsh birds in Louisiana's Mississippi Alluvial Valley
Jonathan J. Valente, Sammy L. King, R. Randy Wilson
2011, Wetlands (31) 1-10
Populations of many North American secretive marsh birds (SMBs) have declined in recent decades, partially as a function of wetland loss. Protecting and restoring appropriate habitat for these species is contingent upon understanding the habitat features they utilize. We investigated breeding distributions of SMBs in northeast Louisiana at 118 wetlands...
Structural and functional effects of herbicides on non-target organisms in aquatic ecosystems with an emphasis on atrazine
James Fairchild
Andreas Kortekamp, editor(s)
2011, Book chapter, Herbicides and environment
Herbicide use has increased dramatically around the world over the past 6 decades (Gianessi and Reigner, 2007). Few herbicides were in use in the 1950s. However, by 2001 approximately 1.14 billion kilograms of herbicides were applied globally for the control of undesireable vegetation in agricultural, silvicultural, lawncare, aquacultural, and irrigation/recreational...
Trends in relative weight of walleye stocks in Wyoming reservoirs
T.D. Marwitz, W.A. Hubert
2011, North American Journal of Fisheries Management (17) 44-53
The relative weight (Wr) index of body condition provided insight into the stock dynamics of walleye Stizostedion vitreum in six reservoirs in the North Platte River drainage of Wyoming. The three most upstream reservoirs are managed as both walleye and trout (Oncorhynchus spp. and Salmo spp.) fisheries; trout are stocked annually. The three downstream reservoirs...
