Gulf of Mexico dead zone —The last 150 years
Lisa Osterman, P.W. Swarzenski, R.Z. Poore
2006, Fact Sheet 2006-3005
'Gulf of Mexico Dead Zone-The Last 150 Years' discusses the dead zone that forms seasonally in the northern Gulf of Mexico when subsurface waters become depleted in dissolved oxygen and cannot support most life....
Flood of October 8 and 9, 2005, on Cold River in Walpole, Langdon, and Alstead and on Warren Brook in Alstead, New Hampshire
Scott A. Olson
2006, Open-File Report 2006-1221
Southwestern New Hampshire experienced damaging flooding on October 8 and 9, 2005. The flooding was the result of a storm producing at least 7 inches of rain in a 30-hour period. The heavy, intense rainfall resulted in runoff and severe flooding, especially in regions of steep topography that are vulnerable...
Use of models to map potential capture of surface water
Stanley A. Leake
2006, Conference Paper
The effects of ground-water withdrawals on surface-water resources and riparian vegetation have become important considerations in water-availability studies. Ground water withdrawn by a well initially comes from storage around the well, but with time can eventually increase inflow to the aquifer and (or) decrease natural outflow from the aquifer. This...
Application of a stream-aquifer model to Monument Creek for development of a method to estimate transit losses for reusable water, El Paso County, Colorado
Gerhard Kuhn, L. Rick Arnold
2006, Scientific Investigations Report 2006-5184
The U.S. Geological Survey, in cooperation with Colorado Springs Utilities, the Colorado Water Conservation Board, and the El Paso County Water Authority, began a study in 2004 to (1) apply a stream-aquifer model to Monument Creek, (2) use the results of the modeling to develop a transit-loss accounting program for...
An on-campus well field for hydrogeophysics education and undergraduate research
Frederick D. Day-Lewis, Mary Beth Gray, Robert L. Garfield, A. Day-Lewis
2006, Journal of Geoscience Education (54) 480-486
The emerging subdiscipline of hydrogeophysics is underdeveloped in undergraduate curricula relative to its importance in professional engineering/environmental practice. In 2001, the Bucknell Department of Geology initiated efforts to refocus an undergraduate geophysics course on near-surface geophysical methods for hydrologic, environmental, and engineering problems. In addition to...
Application of municipal biosolids to dry-land wheat fields - A monitoring program near Deer Trail, Colorado (USA). A presentation for an international conference: "The Future of Agriculture: Science, Stewardship, and Sustainability", August 7-9, 2006, Sacramento, CA
James G. Crock, David B. Smith, Tracy J.B. Yager
2006, Open-File Report 2006-1286
Since late 1993, Metro Wastewater Reclamation District of Denver (Metro District), a large wastewater treatment plant in Denver, Colorado, has applied Grade I, Class B biosolids to about 52,000 acres of non-irrigated farmland and rangeland near Deer Trail, Colorado. In cooperation with the Metro District in 1993, the U.S. Geological...
A logistic regression equation for estimating the probability of a stream in Vermont having intermittent flow
Scott A. Olson, Michael C. Brouillette
2006, Scientific Investigations Report 2006-5217
A logistic regression equation was developed for estimating the probability of a stream flowing intermittently at unregulated, rural stream sites in Vermont. These determinations can be used for a wide variety of regulatory and planning efforts at the Federal, State, regional, county and town levels, including such applications as assessing...
Impoundment and baldcypress swamp management
Beth A. Middleton
2006, Open-File Report 2006-1270
Baldcypress swamps (Taxodium distichum) are impounded for many reasons, but this practice results in the demise of the swamp. The permanent impoundment of baldcypress swamps first lowers primary production and eventually results in death of the trees....
Baldcypress swamp management and climate change
Beth A. Middleton
2006, Open-File Report 2006-1269
In the future, climates may become warmer and drier in the southeastern United States; as a result, the range of baldcypress (Taxodium distichum) swamps may shrink. Managers of baldcypress swamps at the southern edge of the range may face special challenges in attempting to preserve these swamp habitats in the...
Fire management in fens and wet grasslands grazed by cattle
Beth A. Middleton
2006, Open-File Report 2006-1268
Managers grapple with the problem of shrub invasion in fens and wet grasslands, and the invasion of shrubs is a particular problem in newly acquired natural areas that were once grazed by cattle. The specific management for any particular fen or wet grassland depends greatly on its previous land-use history....
Environmental Setting of the Lower Merced River Basin, California
Jo Ann M. Gronberg, Charles R. Kratzer
2006, Scientific Investigations Report 2006-5152
In 1991, the U.S. Geological Survey began to study the effects of natural and anthropogenic influences on the quality of ground water, surface water, biology, and ecology as part of the National Water-Quality Assessment (NAWQA) Program. As part of this program, the San Joaquin-Tulare Basins study unit is assessing parts...
Review of Trace Element Blank and Replicate Data Collected in Ground and Surface Water for the National Water-Quality Assessment Program, 1991-2002
Lori E. Apodaca, David K. Mueller, Michael T. Koterba
2006, Scientific Investigations Report 2006-5093
The trace elements Sb, Be, and Tl in ground water and Sb, Be, Co, Mo, and U in surface water are unaffected by contamination. Limited quality control data (blanks) for Li and V in ground water and surface water do not allow for a good assessment on the potential contamination...
U.S. Geological Survey Georgia Water Science Center and Albany Water, Gas, and Light Commission Cooperative Water Program— Summary of activities, July 2005 through June 2006
Debbie W. Gordon
2006, Open-File Report 2006-1294
The U.S. Geological Survey (USGS) has been working with the Albany Water, Gas, and Light Commission to monitor ground-water quality and availability since 1977. This report presents the findings for July 2005 through June 2006 and summarizes the ground-water and surface-water conditions for 2005. Water levels in 14 wells were...
Hydroacoustic mapping to define sedimentation rates and characterize lentic habitats in DeSoto Lake, DeSoto National Wildlife Refuge
Caroline M. Elliott, Robert B. Jacobson, Kimberly A. Chojnacki
2006, Open-File Report 2006-1254
Hydroacoustic tools were used to map depth, elevation, and substrate on DeSoto Lake in March 2006. DeSoto Lake, located on the DeSoto National Wildlife Refuge in Iowa and Nebraska, is one of the largest oxbow lakes of the Missouri River system. It is used by over 500,000 migratory birds each...
Environmental Effects of Agricultural Practices - Summary of Workshop Held on June 14-16, 2005
Water Resources Division, U.S. Geological Survey
2006, Scientific Investigations Report 2006-5215
A meeting between the U.S. Geological Survey (USGS) and its partners was held June 14-16, 2005, in Denver, CO, to discuss science issues and needs related to agricultural practices. The goals of the meeting were to learn about the (1) effects of agricultural practices on the environment and (2) tools...
Hurricane Rita surge data, southwestern Louisiana and southeastern Texas, September to November 2005
Benton D. McGee, Burl B. Goree, Roland W. Tollett, Brenda K. Woodward, Wade H. Kress
2006, Data Series 220
Pressure transducers and high-water marks were used to document the inland water levels related to storm surge generated by Hurricane Rita in southwestern Louisiana and southeastern Texas. On September 22-23, 2005, an experimental monitoring network consisting of 47 pressure transducers (sensors) was deployed at 33 sites over an area of...
Water resources data, Florida, water year 2005. Volume 2A: south Florida surface water
C. Price, K. Overton
2006, Water Data Report FL-05-2A
Water resources data for 2005 water year in Florida consists of continuous or daily discharge for 429 streams, periodic discharge for 9 streams, continuous or daily stage for 218 streams, periodic stage for 5 stream, peak discharge for 28 streams, and peak stage for 28 streams, continuous or daily elevations...
Water and sediment quality in the Yukon River basin, Alaska, during water year 2004
Paul F. Schuster
2006, Open-File Report 2006-1258
This report contains water-quality and sediment-quality data from samples collected in the Yukon River Basin from March through September during the 2004 water year (WY). Samples were collected throughout the year at five stations in the basin (three on the main stem Yukon River, one each on the Tanana and...
Simulation and particle-tracking analysis of ground-water flow near the Savannah River site, Georgia and South Carolina, 2002, and for selected ground-water management scenarios, 2002 and 2020
Gregory S. Cherry
2006, Scientific Investigations Report 2006-5195
Ground-water flow under 2002 hydrologic conditions was evaluated in an eight-county area in Georgia and South Carolina near the Savannah River Site (SRS), by updating boundary conditions and pumping rates in an existing U.S. Geological Survey (USGS) ground-water model. The original ground-water model, developed to simulate hydrologic conditions during 1987-92,...
Heat flow in Railroad Valley, Nevada and implications for geothermal resources in the south-central Great Basin
Colin F. Williams, John H. Sass
2006, Geothermal Resources Council Transactions (30) 111-116
The Great Basin is a province of high average heat flow (approximately 90 mW m-2), with higher values characteristic of some areas and relatively low heat flow (<60 mW m-2) characteristic of an area in south-central Nevada known as the Eureka Low. There is hydrologic and thermal evidence that the...
Ecological consequences of changing hydrological conditions in wetland forests of coastal Louisiana
Richard F. Keim, J. L. Chambers, M.S. Hughes, J. Andrew Nyman, Craig A. Miller, Blake J. Amos, W.H. Conner, Jon Day, Stephen Faulkner, Emile S. Gardiner, Sammy L. King, K.W. McLeod, Gary P. Shaffer
2006, Book chapter, Coastal Environment and Water Quality
Large-scale and localized alterations of processes affecting deltaic coastal wetlands have caused the complete loss of some coastal wetland forests and reduced the productivity and vigor of many areas in coastal Louisiana. This loss and degradation threatens ecosystem functions and the services they provide. This paper summarizes ecological relationships controlled...
Preliminary integrated geologic map databases for the United States: Digital data for the generalized bedrock geologic map, Yukon Flats region, east-central Alaska
Alison B. Till, Julie A. Dumoulin, Jeffrey D. Phillips, Richard G. Stanley, Jessie Crews
2006, Open-File Report 2006-1304
The growth in the use of Geographic Information Systems (GIS) has highlighted the need for digital geologic maps that have been attributed with information about age and lithology. Such maps can be conveniently used to generate derivative maps for manifold special purposes such as mineral-resource assessment, metallogenic studies, tectonic studies,...
Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map of the western Aleutian Islands, Alaska
Water Resources Division, U.S. Geological Survey
2006, Open-File Report 2006-1302
The growth in the use of Geographic Information Systems (GIS) has highlighted the need for digital geologic maps that have been attributed with information about age and lithology. Such maps can be conveniently used to generate derivative maps for manifold special purposes such as mineral-resource assessment, metallogenic studies, tectonic studies,...
Hydrogeologic framework of the shallow ground-water system in the Cox Hall Creek basin, Cape May County, New Jersey
Pierre J. Lacombe, Otto S. Zapecza
2006, Open-File Report 2006-1044
Cape May County is investigating the feasibility of restoring the lowermost reach of Cox Hall Creek to its former state as a tidal saltwater wetland; however, the potential for contamination of the shallow ground-water system, which provides water to hundreds of nearby privately owned domestic wells, with saltwater from the...
Water-quality reconnaissance of Laguna Tortuguero, Vega Baja, Puerto Rico, March 1999-May 2000
Luis Soler-Lopez, Senen Guzman-Rios, Carlos Conde-Costas
2006, Open-File Report 2006-1049
The Laguna Tortuguero, a slightly saline to freshwater lagoon in north-central Puerto Rico, has a surface area of about 220 hectares and a mean depth of about 1.2 meters. As part of a water-quality reconnaissance, water samples were collected at about monthly and near bi-monthly intervals from March 1999 to...
