Water and sediment quality of the Yukon River and its tributaries, from Eagle to St. Marys, Alaska, 2002-2003
Mark M. Dornblaser, Douglas R. Halm
2006, Open-File Report 2006-1228
The Yukon River basin is a vast and diverse ecosystem covering more than 330,000 square miles, an area larger than Texas. Approximately 126,000 people live within the basin and depend on the Yukon River and its tributaries for drinking water, commerce, and recreational and subsistence fish and game resources. Much of...
Deep resistivity structure of Yucca Flat, Nevada Test Site, Nevada
Theodore H. Asch, Brian D. Rodriguez, Jay A. Sampson, Erin L. Wallin, Jackie M. Williams
2006, Open-File Report 2006-1261
The Department of Energy (DOE) and the National Nuclear Security Administration (NNSA) at their Nevada Site Office are addressing groundwater contamination resulting from historical underground nuclear testing through the Environmental Management program and, in particular, the Underground Test Area project. One issue of concern is the nature of the somewhat...
Estimates of ground-water pumpage from the Yakima River Basin aquifer system, Washington, 1960-2000
J. J. Vaccaro, S. S. Sumioka
2006, Scientific Investigations Report 2006-5205
Ground-water pumpage in the Yakima River Basin, Washington, was estimated for eight categories of use for 1960-2000 as part of an investigation to assess groundwater availability in the basin. Methods used, pumpage estimates, reliability of the estimates, and a comparison with appropriated quantities are described. The eight categories of pumpage...
Metallogeny of the Great Basin: Crustal evolution, fluid flow, and ore deposits
Albert H. Hofstra, Alan R. Wallace
2006, Open-File Report 2006-1280
The Great Basin physiographic province in the Western United States contains a diverse assortment of world-class ore deposits. It currently (2006) is the world’s second leading producer of gold, contains large silver and base metal (Cu, Zn, Pb, Mo, W) deposits, a variety of other important metallic (Fe, Ni,...
Aeromagnetic and gravity data over the Central Transantarctic Mountains (CTAM), Antarctica: a website for the distribution of data and maps
E. D. Anderson, C. A. Finn, D. Damaske, J.D. Abraham, F. Goldmann, J. W. Goodge, P. Braddock
2006, Open-File Report 2006-1255
Near complete coverage of the East Antarctic Shield by ice hampers geological study of crustal architecture important for understanding global tectonic and climate history. Limited exposures in the central Transantarctic Mountains (CTAM), however, show that Archean and Proterozoic rocks of the shield as well as Neoproterozoic-lower Paleozoic sedimentary successions were...
Effects of streambank fencing of pasture land on benthic macroinvertebrates and the quality of surface water and shallow ground water in the Big Spring Run basin of Mill Creek watershed, Lancaster County, Pennsylvania, 1993-2001
Daniel G. Galeone, Robin A. Brightbill, Dennis J. Low, David L. O’Brien
2006, Scientific Investigations Report 2006-5141
Streambank fencing along stream channels in pastured areas and the exclusion of pasture animals from the channel are best-management practices designed to reduce nutrient and suspended-sediment yields from drainage basins. Establishment of vegetation in the fenced area helps to stabilize streambanks and provides better habitat for wildlife in and near...
Models for predicting recreational water quality at Lake Erie beaches
Donna S. Francy, Robert A. Darner, Erin E. Bertke
2006, Scientific Investigations Report 2006-5192
Data collected from four Lake Erie beaches during the recreational seasons of 2004-05 and from one Lake Erie beach during 2000-2005 were used to develop predictive models for recreational water quality by means of multiple linear regression. The best model for each beach was based on a unique combination of...
Salt marsh dieback in coastal Louisiana: Survey of plant and soil conditions in Barataria and Terrebonne basins, June 2000-September 2001
Karen L. McKee, Irving A. Mendelssohn, Michael D. Materne
2006, Open-File Report 2006-1167
Sudden and extensive dieback of the perennial marsh grass, Spartina alterniflora Loisel (smooth cordgrass), which dominates regularly flooded salt marshes along the Gulf of Mexico and Atlantic coastlines, occurred in the coastal zone of Louisiana. The objectives of this study were to assess soil and plant conditions in dieback areas...
Sediment coring and sedimentation analysis on Rasmussen Lake in Ethel's Woods Forest Preserve near Old Mill Creek, Illinois in 2005
Timothy D. Straub, Donald P. Roseboom, Phillip G. Dennis
2006, Scientific Investigations Report 2006-5158
The Lake County Forest Preserve District (LCFPD) is investigating the possibility of modifying the dam on Rasmussen Lake in Ethel's Woods Forest Preserve. The lake is of low water quality with an eroding shoreline. Sediments have been deposited in the impoundment over the last 50 years. Twenty-eight sediment sampling locations...
Data Delivery and Mapping Over the Web: National Water-Quality Assessment Data Warehouse
Richard W. Bell, Alex K. Williamson
2006, Fact Sheet 2006-3101
The U.S. Geological Survey began its National Water-Quality Assessment (NAWQA) Program in 1991, systematically collecting chemical, biological, and physical water-quality data from study units (basins) across the Nation. In 1999, the NAWQA Program developed a data warehouse to better facilitate national and regional analysis of data from 36 study units...
National Assessment of Shoreline Change Part 3: Historical Shoreline Change and Associated Coastal Land Loss Along Sandy Shorelines of the California Coast
Cheryl J. Hapke, David Reid, Bruce M. Richmond, Peter Ruggiero, Jeff List
2006, Open-File Report 2006-1219
Beach erosion is a chronic problem along many open-ocean shores of the United States. As coastal populations continue to grow and community infrastructures are threatened by erosion, there is increased demand for accurate information regarding past and present trends and rates of shoreline movement. There is also a need for...
Water-quality data, Columbia River estuary, 2004-05
Jennifer L. Morace
2006, Data Series 213
This report describes the water-quality data collected by the USGS from 2004 through 05 as part of the Ecosystem Monitoring Project and attempts to quantify the spatial distribution and temporal variation of water-quality conditions, including contaminant concentrations, in water and suspended sediment in the Columbia River Estuary, and evaluate these...
Quality of Nevada's aquifers and their susceptibility to contamination, 1990-2004
Thomas J. Lopes
2006, Scientific Investigations Report 2006-5127
EXECUTIVE SUMMARY: In 1999, the U.S. Environmental Protection Agency introduced a rule to protect the quality of ground water in areas other than source-water protection areas. These other sensitive ground-water areas (OSGWA) are areas that are not currently but could eventually be used as a source of drinking water....
Water-Table Levels and Gradients, Nevada, 1947-2004
Thomas J. Lopes, Susan G. Buto, J. LaRue Smith, Toby L. Welborn
2006, Scientific Investigations Report 2006-5100
In 1999, the U.S. Environmental Protection Agency began a program to protect the quality of ground water in areas other than ground-water protection areas. These other sensitive ground water areas (OSGWA) are areas that are not currently, but could eventually be, used as a source of drinking water. The OSGWA...
Water Quality, Physical Habitat, and Biology of the Kijik River Basin, Lake Clark National Park and Preserve, Alaska, 2004-2005
Timothy P. Brabets, Robert T. Ourso
2006, Scientific Investigations Report 2006-5123
The U.S. Geological Survey and the National Park Service conducted a water-quality investigation of the Kijik River Basin in Lake Clark National Park and Preserve from June 2004 to March 2005. The Kijik River Basin was studied because it has a productive sockeye salmon run that is important to the...
Geologic map of the Wrangell-Saint Elias National Park and Preserve, Alaska
2006, Scientific Investigations Map 2877
Wrangell-Saint Elias National Park and Preserve, the largest national park within the U.S. National Park Service system, extends from the northern Pacific Ocean to beyond the eastern Alaska Range into interior Alaska. It features impressively spectacular scenery such as high and craggy mountains, active and ancient volcanoes, expansive ice fields,...
Grand Canyon Humpback Chub Population Stabilizing
Water Resources Division, U.S. Geological Survey
2006, Fact Sheet 2006-3109
Change in channel width from 1941 to 2004, and change in mean bed elevation from 1960 to 2001, in the nontidal Apalachicola River, Florida
Franklin D. Price, Helen M. Light, Melanie R. Darst, Eleanor R. Griffin, Kirk R. Vincent, Jerry W. Ziewitz
2006, Data Series 191
Documentation of the Unsaturated-Zone Flow (UZF1) Package for modeling Unsaturated Flow Between the Land Surface and the Water Table with MODFLOW-2005
Richard G. Niswonger, David E. Prudic, R. Steven Regan
2006, Techniques and Methods 6-A19
Percolation of precipitation through unsaturated zones is important for recharge of ground water. Rain and snowmelt at land surface are partitioned into different pathways including runoff, infiltration, evapotranspiration, unsaturated-zone storage, and recharge. A new package for MODFLOW-2005 called the Unsaturated-Zone Flow (UZF1) Package was developed to simulate water flow and...
A tectonic model for the spatial occurrence of porphyry copper and polymetallic vein deposits - applications to Central Europe
Lawrence J. Drew
2006, Scientific Investigations Report 2005-5272
A structural-tectonic model, which was developed to assess the occurrence of undiscovered porphyry copper deposits and associated polymetallic vein systems for the Matra Mountains, Hungary, has been expanded here and applied to other parts of central Europe. The model explains how granitoid stocks are emplaced and hydrothermal fluids flow within...
Shock Waves One Hundred Years after the 1906 Earthquake
Water Resources Division, U.S. Geological Survey
2006, General Information Product 40
Mid-Continent Geographic Science Center Natural Hazards Research - Landslides
Water Resources Division, U.S. Geological Survey
2006, Fact Sheet 2006-3017
The National Map: Topographic Maps for the 21st Century
Water Resources Division, U.S. Geological Survey
2006, Fact Sheet 2006-3107
The U.S. Geological Survey (USGS) is committed to meeting the Nation's needs for current base geographic data and maps. Our vision is that, by working with partners, we will provide the Nation with access to current, accurate, and nationally consistent digital data and topographic maps derived from those data. This...
The Mid-Continent Geographic Science Center
Water Resources Division, U.S. Geological Survey
2006, Fact Sheet 2006-3058
Palila Restoration: Lessons from Long-term Research
Water Resources Division, U.S. Geological Survey
2006, Fact Sheet 2006-3104
BACKGROUND The palila (Loxioides bailleui) is a member of the Hawaiian honeycreeper family of birds (Drepanidinae), which is renowned for the profusion of species - many with bizarre bills and specialized feeding habits - that radiated from a single ancestral type. Most of the 57 or so honeycreeper species are extinct,...
