Probability of Unmixed Young Groundwater (defined using chlorofluorocarbon-11 concentrations and tritium activities) in the Eagle River Watershed Valley-Fill Aquifer, Eagle County, North-Central Colorado, 2006-2007
Michael G. Rupert, Niel Plummer
2009, Data Series 460
This raster data set delineates the predicted probability of unmixed young groundwater (defined using chlorofluorocarbon-11 concentrations and tritium activities) in groundwater in the Eagle River watershed valley-fill aquifer, Eagle County, North-Central Colorado, 2006-2007. This data set was developed by a cooperative project between the U.S. Geological Survey, Eagle County, the...
Geologic Map of the Santa Barbara Coastal Plain Area, Santa Barbara County, California
Scott A. Minor, Karl S. Kellogg, Richard G. Stanley, Larry D. Gurrola, Edward A. Keller, Theodore R. Brandt
2009, Scientific Investigations Map 3001
This report presents a newly revised and expanded digital geologic map of the Santa Barbara coastal plain area at a compilation scale of 1:24,000 (one inch on the map to 2,000 feet on the ground)1 and with a horizontal positional accuracy of at least 20 m. The map depicts the...
Anthropogenic organic compounds in source and finished groundwater of community water systems in the Piedmont Physiographic Province, Potomac River Basin, Maryland and Virginia, 2003-04
William S.L. Banks, Betzaida Reyes
2009, Scientific Investigations Report 2009-5064
A source- and finished-water-quality assessment of groundwater was conducted in the Piedmont Physiographic Province of Maryland and Virginia in the Potomac River Basin during 2003-04 as part of the U.S. Geological Survey's National Water-Quality Assessment Program. This assessment used a two-phased approach to sampling that allowed investigators to evaluate the...
Sources, transport, and storage of sediment at selected sites in the Chesapeake Bay Watershed
Allen C. Gellis, Cliff R. Hupp, Milan J. Pavich, Jurate M. Landwehr, William S.L. Banks, Bernard E. Hubbard, Michael J. Langland, Jerry C. Ritchie, Joanna M. Reuter
2009, Scientific Investigations Report 2008-5186
The Chesapeake Bay Watershed covers 165,800 square kilometers and is supplied with water and sediment from five major physiographic provinces: Appalachian Plateau, Blue Ridge, Coastal Plain, Piedmont, and the Valley and Ridge. Suspended-sediment loads measured in the Chesapeake Bay Watershed showed that the Piedmont Physiographic Province has the highest rates...
Boundary of the Eagle River watershed valley-fill aquifer, Eagle County, north-central Colorado, 2006-2007
Michael G. Rupert, Niel Plummer
2009, Data Series 458
This vector data set delineates the approximate boundary of the Eagle River watershed valley-fill aquifer (ERWVFA). This data set was developed by a cooperative project between the U.S. Geological Survey, Eagle County, the Eagle River Water and Sanitation District, the Town of Eagle, the Town of Gypsum, and the Upper...
Probability of Elevated Nitrate Concentrations in Groundwater in the Eagle River Watershed Valley-Fill Aquifer, Eagle County, North-Central Colorado, 2006-2007
Michael G. Rupert, Niel Plummer
2009, Data Series 459
This raster data set delineates the predicted probability of elevated nitrate concentrations in groundwater in the Eagle River watershed valley-fill aquifer, Eagle County, North-Central Colorado, 2006-2007. This data set was developed by a cooperative project between the U.S. Geological Survey, Eagle County, the Eagle River Water and Sanitation District, the...
Impact of wildfire on levels of mercury in forested watershed systems: Voyageurs National Park, Minnesota
Laurel G. Woodruff, Mark B. Sandheinrich, Mark E. Brigham, William F. Cannon
2009, Scientific Investigations Report 2009-5151
Atmospheric deposition of mercury to remote lakes in mid-continental and eastern North America has increased approximately threefold since the mid-1800s (Swain and others, 1992; Fitzgerald and others, 1998; Engstrom and others, 2007). As a result, concerns for human and wildlife health related to mercury contamination have become widespread. Despite an...
Source, Transport, and Fate of Groundwater Contamination at Site 45, Marine Corps Recruit Depot, Parris Island, South Carolina
Don A. Vroblesky, Matthew D. Petkewich, James Landmeyer, Mark A. Lowery
2009, Scientific Investigations Report 2009-5161
Groundwater contamination by tetrachloroethene and its dechlorination products is present in two partially intermingled plumes in the surficial aquifer near a former dry-cleaning facility at Site 45, Marine Corps Recruit Depot, Parris Island, South Carolina. The northern plume originates from the vicinity of former above-ground storage tanks. Free-phase tetrachloroethene from...
Using a StreamPro acoustic doppler current profiler in moving-bed conditions: Problems and solutions
David S. Mueller, Mike S. Rehmel, Chad R. Wagner
2009, Conference Paper, 33rd IAHR congress: Water engineering for a sustainable environment
No abstract available....
Occurrence of viable avian influenza viruses in water and bed sediments from selected water bodies along the Atlantic Flyway, February and May 2006 and January 2007
Melinda S. Dalton, Lisa M. Stewart, S. Ip
2009, Open-File Report 2009-1161
Water and bed-sediment samples were collected from selected water bodies along the Atlantic Flyway and analyzed for the presence of viable avian influenza viruses. Samples were collected during February and May 2006 and January 2007 at U.S. Fish and Wildlife Service National Wildlife Refuges in Georgia, South Carolina, North Carolina,...
Digital representation of 1:1,000,000-scale hydrographic areas of the Great Basin
Susan G. Buto
2009, Data Series 457
Hydrographic areas (HA) in Nevada were delineated by the U.S. Geological Survey (USGS) and Nevada Division of Water Resources in the late 1960s for scientific and administrative purposes. The official HA names, numbers, and boundaries continue to be used in USGS scientific reports and Nevada State Division of Water Resources...
The effect of channel shape, bed morphology, and shipwrecks on flow velocities in the Upper St. Clair River
Jonathan A. Czuba, Kevin Oberg, Jim Best, Daniel R. Parsons
2009, Conference Paper, 33rd IAHR congress: Water engineering for a sustainable environment
In the Great Lakes of North America, the St. Clair River is the major outlet of Lake Huron and conveys water to Lake St. Clair which then flows to Lake Erie. One major topic of interest is morphological change in the St. Clair River and its impact on water levels...
Discharge and other hydraulic measurements for characterizing the hydraulics of Lower Congo River
Kevin Oberg, John M. Shelton, Ned Gardiner, P. Ryan Jackson
2009, Conference Paper, 33rd IAHR congress: Water engineering for a sustainable environment
The first direct measurements of discharge of the Lower Congo River below Malebo Pool and upstream from Kinganga, Democratic Republic of Congo (DRC) were made in July 2008 using acoustic Doppler current profilers, differential GPS, and echo sounders. These measurements were made in support of research that is attempting to...
Laboratory evaluation of an OTT acoustic digital current meter and a SonTek Laboratory acoustic Doppler velocimeter
T.B. Vermeyen, Kevin A. Oberg, Patrick Ryan Jackson
2009, Conference Paper
Recently, an acoustic current meter known as the OTT * acoustic digital current meter (ADC) was introduced as an alternative instrument for stream gaging measurements. The Bureau of Reclamation and the U.S. Geological Survey collaborated on a side- by-side evaluation of the ADC and a SonTek/YSI acoustic Doppler velocimeter (ADV)....
Preliminary Geomorphic Map of the Kitsap Peninsula, Washington
Ralph A. Haugerud
2009, Open-File Report 2009-1033
The Kitsap Peninsula, in the center of the Puget Lowland of Washington State, has been glaciated repeatedly during the last 2 million years. This geologic history is significant to our understanding of crustal deformation, ground- and surface-water resources, the distribution of fishes, and other topics. Recent high-resolution lidar (LIght Detection...
Revised multi-node well (MNW2) package for MODFLOW ground-water flow model
Leonard F. Konikow, George Z. Hornberger, Keith J. Halford, Randall T. Hanson, Arlen W. Harbaugh
2009, Techniques and Methods 6-A30
Wells that are open to multiple aquifers can provide preferential pathways to flow and solute transport that short-circuit normal fluid flowlines. Representing these features in a regional flow model can produce a more realistic and reliable simulation model. This report describes modifications to the Multi-Node Well (MNW) Package of the...
Simulation of the Groundwater-Flow System in Pierce, Polk, and St. Croix Counties, Wisconsin
Paul F. Juckem
2009, Scientific Investigations Report 2009-5056
Groundwater is the sole source of residential water supply in Pierce, Polk, and St. Croix Counties, Wisconsin. A regional three-dimensional groundwater-flow model and three associated demonstration inset models were developed to simulate the groundwater-flow systems in the three-county area. The models were developed by the U.S. Geological Survey in cooperation...
Brine migration from a flooded salt mine in the Genesee Valley, Livingston County, New York: Geochemical modeling and simulation of variable-density flow
Richard M. Yager, Paul E. Misut, Christian D. Langevin, David L. Parkhurst
2009, Professional Paper 1767
The Retsof salt mine in upstate New York was flooded from 1994 to 1996 after two roof collapses created rubble chimneys in overlying bedrock that intersected a confined aquifer in glacial sediments. The mine now contains about 60 billion liters of saturated halite brine that is slowly being displaced as...
Effect of detention basin release rates on flood flows: Application of a model to the Blackberry Creek Watershed in Kane County, Illinois
David T. Soong, Elizabeth A. Murphy, Timothy D. Straub
2009, Scientific Investigations Report 2009-5106
The effects of stormwater detention basins with specified release rates are examined on the watershed scale with a Hydrological Simulation Program - FORTRAN (HSPF) continuous-simulation model. Modeling procedures for specifying release rates from detention basins with orifice and weir discharge configurations are discussed in this report. To facilitate future detention...
Magnetotelluric and audiomagnetotelluric groundwater survey along the Humu'ula portion of Saddle Road near and around the Pohakuloa Training Area, Hawaii
Herbert A. Pierce, Donald M. Thomas
2009, Open-File Report 2009-1135
The Pohakuloa Training Area (PTA), operated by the U.S. Army on the Big Island of Hawaii, is in need of a reliable potable water supply to sustain ongoing operations by staff and trainees. In an effort to acquire baseline hydrologic data with which to develop a plan for providing that...
Surficial geologic map of the Roanoke Rapids 30' x 60' quadrangle, North Carolina
Robert E. Weems, William C. Lewis, Wilma Aleman-Gonzalez
2009, Open-File Report 2009-1149
The Roanoke Rapids 1:100,000 map sheet is located in northeastern North Carolina. Most of the area is flat to gently rolling, though steep slopes occur occasionally along some of the larger streams. Total relief in the area is slightly less than 400 feet (ft), with elevations ranging from sea level...
Channel change and bed-material transport in the Lower Chetco River, Oregon
J. Rose Wallick, Scott W. Anderson, Charles Cannon, Jim E. O'Connor
2009, Open-File Report 2009-1163
The lower Chetco River is a wandering gravel-bed river flanked by abundant and large gravel bars formed of coarse bed-material sediment. The large gravel bars have been a source of commercial aggregate since the early twentieth century for which ongoing permitting and aquatic habitat concerns have motivated this assessment of...
Evaluation of passive samplers for long-term monitoring of organic compounds in the untreated drinking water supply for the city of Eugene, Oregon, September–October 2007
Kathleen A. McCarthy, David A. Alvarez, Chauncey W. Anderson, Walter L. Cranor, Stephanie D. Perkins, Vickie Schroeder
2009, Scientific Investigations Report 2009-5178
Two types of passive samplers, polar organic chemical integrative samplers (POCIS) and semipermeable membrane devices (SPMDs), were deployed at three sites in the McKenzie River basin during September-October 2007. The McKenzie River is the source of drinking water for the city of Eugene, Oregon, and the work presented here was...
Floods of May 2006 and April 2007 in Southern Maine
Pamela J. Lombard
2009, Fact Sheet 2009-3049
The U.S. Geological Survey Maine Water Science Center has worked with the Federal Emergency Management Agency for decades to document the magnitude and extent of major floods in Maine. Reports describing the May 2006 and April 2007 floods in southern Maine are examples of this cooperative relationship. The documentation of...
Terrestrial Ecosystems - Topographic Moisture Potential of the Conterminous United States
Jill J. Cress, Roger G. Sayre, Patrick Comer, Harumi Warner
2009, Scientific Investigations Map 3086
As part of an effort to map terrestrial ecosystems, the U.S. Geological Survey has generated topographic moisture potential classes to be used in creating maps depicting standardized, terrestrial ecosystem models for the conterminous United States, using an ecosystems classification developed by NatureServe. A biophysical stratification approach, developed for South America...
