Comparison of Methylmercury Production and Accumulation in Sediments of the Congaree and Edisto River Basins, South Carolina, 2004-06
Paul M. Bradley, Francis H. Chapelle, Celeste A. Journey
2009, Scientific Investigations Report 2009-5021
Fish-tissue mercury concentrations (approximately 2 micrograms per gram) in the Edisto River basin of South Carolina are among the highest recorded in the United States. Substantially lower mercury concentrations (approximately 0.2 microgram per gram) are reported in fish from the adjacent (about 30 kilometer) Congaree River basin and the Congaree...
Acoustic Doppler current profiler applications used in rivers and estuaries by the U.S. Geological Survey
Anthony J. Gotvald, Kevin A. Oberg
2009, Fact Sheet 2008-3096
The U.S. Geological Survey (USGS) has collected streamflow information for the Nation's streams since 1889. Streamflow information is used to predict floods, manage and allocate water resources, design engineering structures, compute water-quality loads, and operate water-control structures. The current (2007) size of the USGS streamgaging network is over 7,400 streamgages...
Ground-Water Conditions and Studies in Georgia, 2006-2007
Michael F. Peck, Jaime A. Painter, David C. Leeth
2009, Scientific Investigations Report 2009-5070
The U.S. Geological Survey collects ground-water data and conducts studies to monitor hydrologic conditions, better define ground-water resources, and address problems related to water supply, water use, and water quality. Water levels were monitored continuously, in Georgia, in a network of 184 wells during 2006 and 182 wells during 2007....
Publications of the Volcano Hazards Program 2007
Manuel Nathenson
2009, Open-File Report 2009-1071
The Volcano Hazards Program of the U.S. Geological Survey (USGS) is part of the Geologic Hazards Assessments subactivity as funded by Congressional appropriation. Investigations are carried out in the Geology and Hydrology Disciplines of the USGS and with cooperators at the Alaska Division of Geological and Geophysical Surveys, University of...
Baseline Channel Geometry and Aquatic Habitat Data for Selected Streams in the Matanuska-Susitna Valley, Alaska
Janet H. Curran, William J. Rice
2009, Scientific Investigations Report 2009-5084
Small streams in the rapidly developing Matanuska-Susitna Valley in south-central Alaska are known to support anadromous and resident fish but little is known about their hydrologic and riparian conditions, or their sensitivity to the rapid development of the area or climate variability. To help address this need, channel geometry and...
Examining Submarine Ground-Water Discharge into Florida Bay by using 222Rn and Continuous Resistivity Profiling
Peter Swarzenski, Chris Reich, David Rudnick
2009, Open-File Report 2008-1342
Estimates of submarine ground-water discharge (SGD) into Florida Bay remain one of the least understood components of a regional water balance. To quantify the magnitude and seasonality of SGD into upper Florida Bay, research activities included the use of the natural geochemical tracer, 222Rn, to examine potential SGD hotspots (222Rn...
Streamflow Simulations and Percolation Estimates Using the Soil and Water Assessment Tool for Selected Basins in North-Central Nebraska, 1940-2005
Kellan R. Strauch, Joshua I. Linard
2009, Scientific Investigations Report 2009-5075
The U.S. Geological Survey, in cooperation with the Upper Elkhorn, Lower Elkhorn, Upper Loup, Lower Loup, Middle Niobrara, Lower Niobrara, Lewis and Clark, and Lower Platte North Natural Resources Districts, used the Soil and Water Assessment Tool to simulate streamflow and estimate percolation in north-central Nebraska to aid development of...
Land Cover Trends in the Southern Florida Coastal Plain
Steven Kambly, Thomas R. Moreland
2009, Scientific Investigations Report 2009-5054
This report presents an assessment of land use and land cover change in the Southern Florida Coastal Plain ecoregion for the period from 1973 to 2000. The ecoregion is one of 84 level III ecoregions defined by the Environmental Protection Agency; ecoregions have been designed to serve as a spatial...
Geochemistry of the Arbuckle-Simpson Aquifer
Scott Christenson, Andrew G. Hunt, David L. Parkhurst, Noel I. Osborn
2009, Fact Sheet 2009-3013
The Arbuckle-Simpson aquifer in south-central Oklahoma provides water for public supply, farms, mining, wildlife conservation, recreation, and the scenic beauty of springs, streams, and waterfalls. A new understanding of the aquifer flow system was developed as part of the Arbuckle-Simpson Hydrology Study, done in 2003 through 2008 as a collaborative...
Transient electromagnetic soundings near Great Sand Dunes National Park and Preserve, San Luis Valley, Colorado (2006 field season)
David V. Fitterman, Oderson A. de Souza Filho
2009, Open-File Report 2009-1051
Time-domain electromagnetic (TEM) soundings were made near Great Sand Dunes National Park and Preserve in the San Luis Valley of southern Colorado to obtain subsurface information of use to hydrologic modeling. Seventeen soundings were made to the east and north of the sand dunes. Using a small loop TEM system,...
Hydrologic and Water-Quality Conditions During Restoration of the Wood River Wetland, Upper Klamath River Basin, Oregon, 2003-05
Kurt D. Carpenter, Daniel T. Snyder, John H. Duff, Frank J. Triska, Karl K. Lee, Ronald J. Avanzino, Steven Sobieszczyk
2009, Scientific Investigations Report 2009-5004
Restoring previously drained wetlands is a strategy currently being used to improve water quality and decrease nutrient loading into Upper Klamath Lake, Oregon. In this 2003-05 study, ground- and surface-water quality and hydrologic conditions were characterized in the Wood River Wetland. Nitrogen and phosphorus levels, primarily as dissolved organic nitrogen...
Evaluation of Sources of Nitrate Beneath Food Processing Wastewater-Application Sites near Umatilla, Oregon
Lonna Frans, Anthony Paulson, Phil Richerson, Elise Striz, Curt Black
2009, Scientific Investigations Report 2009-5069
Water samples from wells were collected beneath and downgradient of two food-processing wastewater-application sites near Umatilla, Oregon. These samples were analyzed for nitrate stable isotopes, nutrients, major ions, and age-dating constituents to determine if nitrate-stable isotopes can be used to differentiate food-processing waste from other potential sources of nitrate. Major-ion...
Water-Table and Potentiometric-Surface Altitudes in the Upper Glacial, Magothy, and Lloyd Aquifers beneath Long Island, New York, March-April 2006
Jack Monti Jr., Ronald J. Busciolano
2009, Scientific Investigations Map 3066
The U.S. Geological Survey (USGS), in cooperation with State and local agencies, systematically collects ground-water data at varying measurement frequencies to monitor the hydrologic situation on Long Island, New York. Each year during March and April, the USGS conducts a synoptic survey of hydrologic conditions to define the spatial distribution...
Hydrologic characterization for Spring Creek and hydrologic budget and model scenarios for Sheridan Lake, South Dakota, 1962-2007
Daniel G. Driscoll, Parker A. Norton
2009, Scientific Investigations Report 2009-5059
The U.S. Geological Survey cooperated with South Dakota Game, Fish and Parks to characterize hydrologic information relevant to management of water resources associated with Sheridan Lake, which is formed by a dam on Spring Creek. This effort consisted primarily of characterization of hydrologic data for a base period of 1962...
Using the Soil and Water Assessment Tool (SWAT) to Simulate Runoff in Mustang Creek Basin, California
Dina K. Saleh, Charles R. Kratzer, Colleen H. Green, David G. Evans
2009, Scientific Investigations Report 2009-5031
This study is an evaluation of the calibration and validation of the Soil and Water Assessment Tool (SWAT) version 2005 watershed model for the Mustang Creek Basin, San Joaquin Valley, California. The study is part of a national study on the process of agricultural chemical movement through the hydrologic system,...
Geomorphic segmentation, hydraulic geometry, and hydraulic microhabitats of the Niobrara River, Nebraska — Methods and initial results
Jason S. Alexander, Ronald B. Zelt, Nathaniel J. Schaepe
2009, Scientific Investigations Report 2009-5008
The Niobrara River of Nebraska is a geologically, ecologically, and economically significant resource. The State of Nebraska has recognized the need to better manage the surface- and ground-water resources of the Niobrara River so they are sustainable in the long term. In cooperation with the Nebraska Game and Parks Commission,...
Hydrologic Conditions in Florida during Water Year 2007
Richard Jay Verdi, Stewart A. Tomlinson, Ronald B. Irvin, David L. Fulcher
2009, Scientific Investigations Report 2008-5221
Record-high and record-low hydrologic conditions occurred during water year 2007 (October 1, 2006 - September 30, 2007) based on analyses of precipitation, surface-water flows, lake elevations, and ground-water levels. For example, the streamgage at Suwannee River at White Springs in northwest Florida recorded an annual streamflow of 103 cubic feet...
Transport and sources of suspended sediment in the Mill Creek Watershed, Johnson County, Northeast Kansas, 2006-07
Casey J. Lee, Patrick P. Rasmussen, Andrew C. Ziegler, Christopher C. Fuller
2009, Scientific Investigations Report 2009-5001
The U.S. Geological Survey, in cooperation with the Johnson County Stormwater Management Program, evaluated suspended-sediment transport and sources in the urbanizing, 57.4 mi2 Mill Creek watershed from February 2006 through June 2007. Sediment transport and sources were assessed spatially by continuous monitoring of streamflow and turbidity as well as sampling...
Comparison of Surface Flow Features from Lidar-Derived Digital Elevation Models with Historical Elevation and Hydrography Data for Minnehaha County, South Dakota
Sandra K. Poppenga, Bruce B. Worstell, Jason M. Stoker, Susan K. Greenlee
2009, Scientific Investigations Report 2009-5065
The U.S. Geological Survey (USGS) has taken the lead in the creation of a valuable remote sensing product by incorporating digital elevation models (DEMs) derived from Light Detection and Ranging (lidar) into the National Elevation Dataset (NED), the elevation layer of 'The National Map'. High-resolution lidar-derived DEMs provide the accuracy...
Hydroecological factors governing surface water flow on a low-gradient floodplain
Judson W. Harvey, Raymond W. Schaffranek, Gregory B. Noe, Laurel G. Larsen, Daniel Nowacki, Benjamin L O'Connor
2009, Water Resources Research (45) W03421
"Interrelationships between hydrology and aquatic ecosystems are better understood in streams and rivers compared to their surrounding floodplains. Our goal was to characterize the hydrology of the Everglades ridge and slough floodplain ecosystem, which is valued for the comparatively high biodiversity and connectivity of its parallel-drainage features but which has...
Magnitude and frequency of rural floods in the southeastern United States, 2006: Volume 1, Georgia
Anthony J. Gotvald, Toby D. Feaster, J. Curtis Weaver
2009, Scientific Investigations Report 2009-5043
A multistate approach was used to update methods for estimating the magnitude and frequency of floods in rural, ungaged basins in Georgia, South Carolina, and North Carolina that are not substantially affected by regulation, tidal fluctuations, or urban development. Annual peak-flow data through September 2006 were analyzed for 943 streamgaging...
Effect of agricultural practices on hydrology and water chemistry in a small irrigated catchment, Yakima River Basin, Washington
K. A. McCarthy, Henry M. Johnson
2009, Scientific Investigations Report 2009-5030
The role of irrigation and artificial drainage in the hydrologic cycle and the transport of solutes in a small agricultural catchment in central Washington's Yakima Valley were explored using hydrologic, chemical, isotopic, age-dating, and mineralogical data from several environmental compartments, including stream water, ground water, overland flow, and streambed pore...
Meteorological Data near Rabbit Ears Pass, Colorado, U.S.A., 1984-2008
Douglas R. Halm, Larry D. Beaver, George H. Leavesley, Michael M. Reddy
2009, Data Series 415
In 1983, a snowmelt energy budget study was initiated by the U.S. Geological Survey on a small watershed near Rabbit Ears Pass, Colorado, to better understand snowmelt processes. The study included data collection from hydrological and meteorological instrumentation. Interest in long term, high-altitude meteorological sites has increased recently due to...
Hydrogeology of the Lake Tahoe Basin, California and Nevada
Russell W. Plume, Mary L. Tumbusch, Toby L. Welborn
2009, Scientific Investigations Map 3063
Ground water in the Lake Tahoe basin is the primary source of domestic and municipal water supply and an important source of inflow to Lake Tahoe. Over the past 30-40 years, Federal, State, and local agencies, and research institutions have collected hydrologic data to quantify the ground-water resources in the...
Does mobility explain variation in colonisation and population recovery among stream fishes?
Paul L. Angermeier, Brett Albanese, James T. Peterson
2009, Freshwater Biology (54) 1444-1460
1. Colonisation and population recovery are crucial to species persistence in environmentally variable ecosystems, but are poorly understood processes. After documenting movement rates for several species of stream fish, we predicted that this variable would influence colonisation rates more strongly than local abundance, per cent occupancy, body size and...
