Impact of anthropogenic development on coastal ground-water hydrology in southeastern Florida, 1900-2000
Robert A. Renken, Joann Dixon, John A. Koehmstedt, Scott Ishman, A.C. Lietz, Richard L. Marella, Pamela A. Telis, Jeff Rodgers, Steven Memberg
2005, Circular 1275
Southeastern Florida is an area that has been subject to widely conflicting anthropogenic stress to the Everglades and coastal ecosystems. This stress is a direct consequence of the 20th century economic competition for limited land and water resources needed to satisfy agricultural development and its expansion, its displacement by burgeoning urban development, and the...
Reconnaissance of the Hydrogeology of Ta'u, American Samoa
Scot K. Izuka
2005, Scientific Investigations Report 2004-5240
Analysis of existing data and information collected on a reconnaissance field visit supports a conceptual model of ground-water occurrence in Ta'u, American Samoa, in which a thin freshwater lens exists in a predominantly high-permeability aquifer that receives high rates of recharge. Because the freshwater lens is thin throughout most of...
Effects of urban land-use change on streamflow and water quality in Oakland County, Michigan, 1970-2003, as inferred from urban gradient and temporal analysis
Stephen S. Aichele
2005, Scientific Investigations Report 2005-5016
Various adverse hydrologic effects on streams have been attributed to urban development and expanded impervious surface area, including increased high flows, decreased low flows, increased variability (commonly referred to as flashiness), nutrient enrichment, and increased dissolved solids concentrations. These effects are often observed through the use of urban-gradient studies, which...
Geologic and geophysical maps of the Las Vegas 30' x 60' quadrangle, Clark and Nye counties, Nevada, and Inyo County, California
William R. Page, Scott C. Lundstrom, Anita G. Harris, Victoria E. Langenheim, Jeremiah B. Workman, Shannon Mahan, James B. Paces, Gary L. Dixon, Peter D. Rowley, B.C. Burchfiel, John W. Bell, Eugene I. Smith
2005, Scientific Investigations Map 2814
Las Vegas and Pahrump are two of the fastest growing cities in the US, and the shortage of water looms as among the greatest future problems for these cities. These new maps of the Las Vegas 30 x 60-minute quadrangle provide a geologic and geophysical framework and fundamental earth...
Comparison of diffusion- and pumped-sampling methods to monitor volatile organic compounds in ground water, Massachusetts Military Reservation, Cape Cod, Massachusetts, July 1999–December 2002
Stacey A. Archfield, Denis R. LeBlanc
2005, Scientific Investigations Report 2005-5010
To evaluate diffusion sampling as an alternative method to monitor volatile organic compound (VOC) concentrations in ground water, concentrations in samples collected by traditional pumped-sampling methods were compared to concentrations in samples collected by diffusion-sampling methods for 89 monitoring wells at or near the Massachusetts Military Reservation, Cape Cod. Samples...
Effects of aquifer heterogeneity on ground-water flow and chloride concentrations in the Upper Floridan aquifer near and within an active pumping well field, west-central Florida
A. B. Tihansky
2005, Scientific Investigations Report 2004-5268
Chloride concentrations have been increasing over time in water from wells within and near the Eldridge-Wilde well field, near the coast in west-central Florida. Variable increases in chloride concentrations from well to well over time are the combined result of aquifer heterogeneity and ground-water pumping within the Upper Floridan aquifer....
Geodatabase of environmental information for Air Force Plant 4 and Naval Air Station-Joint Reserve Base Carswell Field, Fort Worth, Texas, 1990-2004
Sachin D. Shah, Sean M. Quigley
2005, Open-File Report 2005-1041
Air Force Plant 4 (AFP4) and adjacent Naval Air Station-Joint Reserve Base (NAS-JRB) at Fort Worth, Tex., constitute a government-owned, contractor-operated (GOCO) facility that has been in operation since 1942. Contaminants from the facility, primarily volatile organic compounds (VOCs) and metals, have entered the groundwater-flow system through leakage from waste-disposal...
Recharge processes in an alluvial aquifer riparian zone, Norman Landfill, Norman, Oklahoma, 1998-2000
Martha Scholl, Scott Christenson, Isabelle Cozzarelli, Dale Ferree, Jeanne Jaeshke
2005, Scientific Investigations Report 2004-5238
Analyses of stable isotope profiles (d2H and d18O) in the saturated zone, combined with water-table fluctuations, gave a comprehensive picture of recharge processes in an alluvial aquifer riparian zone. At the Norman Landfill U.S. Geological Survey Toxic Substances Hydrology research site in Norman, Oklahoma, recharge to the aquifer appears to...
Acoustic doppler velocity monitoring within Main Spring, Barton Springs, Austin, Texas, April-September 2004-enhancing the accuracy of springflow data
W.H. Asquith, M.O. Gary
2005, Fact Sheet 2005-3044
Acoustic Doppler velocity (ADV) meters are sophisticated underwater monitoring instruments that use sound waves to measure water velocity in as many as three directions. In April 2004, an ADV meter was installed inside the principal orifice and discharge point of Main Spring at Barton Springs in Austin, Texas. This instrument...
Water resources data for Oregon, water year 2004
Thomas A. Herrett, Glenn W. Hess, Jon G. House, Gregory P. Ruppert, Mary-Lorraine Courts
2005, Water Data Report OR-04-1
The annual Oregon water data report is one of a series of annual reports that document hydrologic data gathered from the U.S. Geological Survey's surface- and ground-water data-collection networks in each State, Puerto Rico, and the Trust Territories. These records of streamflow, ground-water levels, and quality of water provide the...
Water quality, hydrology, and phosphorus loading to Little St. Germain Lake, Wisconsin, with special emphasis on the effects of winter aeration and ground-water inputs
Dale M. Robertson, William J. Rose, David A. Saad
2005, Scientific Investigations Report 2005-5071
Little St. Germain Lake is a 978-acre, multibasin lake in Vilas County, Wisconsin. In the interest of protecting and improving the water quality of the lake, the Little St. Germain Lake District initiated several cooperative studies with the U.S. Geological Survey between 1991 and 2004 to (1) document the water...
Environmental issues of petroleum exploration and production: Introduction
Yousif K. Kharaka, Nancy S. Dorsey
2005, Environmental Geosciences (12) 61-63
Energy is the lifeblood of our planet Earth, an essential commod- ity that powers the expanding global economy. Starting in the 1950s, oil and natural gas became the main sources of primary energy for the increasing world population, and this dominance is expected to continue for several more decades (Edwards,...
Ground-water/surface-water responses to global climate simulations, Santa Clara-Calleguas basin, Ventura County, California, 1950-93
Randall T. Hanson, Michael D. Dettinger
2005, Journal of the American Water Resources Association (41) 517-536
Climate variations can play an important, if not always crucial, role in successful conjunctive management of ground water and surface water resources. This will require accurate accounting of the links between variations in climate, recharge, and withdrawal from the resource systems, accurate projection or predictions of the climate variations, and...
Water resources data, New Jersey, water year 2004-volume 1. surface-water data
G.L. Centinaro, B.T. White, H.L. Hoppe, J.F. Dudek, A.R. Protz, T.J. Reed, J.C. Shvanda, A.F. Watson
2005, Water Data Report NJ-04-1
Water-resources data for the 2004 water year for New Jersey are presented in three volumes, and consists of records of stage, discharge, and water-quality of streams; stage and contents of lakes and reservoirs; and water levels and water-quality of ground water. Volume 1 contains discharge records for 105 gaging stations;...
Inventory of ground-water resources in the Kabul Basin, Afghanistan
Robert E. Broshears, Michael P. Chornack, David K. Mueller, Barbara C. Ruddy
2005, Scientific Investigations Report 2005-5090
In 2004, the U.S. Geological Survey began working with engineers at the Afghanistan Geological Survey to provide hydrologic training and equipment and to apply these tools to build an inventory of water wells in the Kabul Basin of Afghanistan. An inventory of 148 wells now includes information on well location,...
Historic and naturalized monthly streamflow for selected sites in the Red River of the North Basin in North Dakota, Minnesota, and South Dakota, 1931-2001
Douglas G. Emerson
2005, Scientific Investigations Report 2005-5092
Historic monthly streamflow data were compiled and missing historic and naturalized monthly streamflow data were estimated to develop a database of updated streamflow data for January 1931 through December 2001 (the data-development period) for 35 sites in the Red River of the North Basin. Of the 35 sites, 4 had...
USGS California Water Science Center water programs in California
Michael V. Shulters
2005, Fact Sheet 2005-3046
California is threatened by many natural hazards—fire, floods, landslides, earthquakes. The State is also threatened by longer-term problems, such as hydrologic effects of climate change, and human-induced problems, such as overuse of ground water and degradation of water quality. The threats and problems are intensified by increases in population, which...
Saline tracer visualized with three-dimensional electrical resistivity tomography: Field-scale spatial moment analysis
Kamini Singha, Steven M. Gorelick
2005, Water Resources Research (41)
Cross-well electrical resistivity tomography (ERT) was used to monitor the migration of a saline tracer in a two-well pumping-injection experiment conducted at the Massachusetts Military Reservation in Cape Cod, Massachusetts. After injecting 2200 mg/L of sodium chloride for 9 hours, ERT data sets were collected from four wells every 6...
Water resources data for Massachusetts and Rhode Island, water year 2004
R.S. Socolow, L.Y. Comeau, Domenic Murino Jr.
2005, Water Data Report MA-RI-04-1
This report includes records of stage, discharge, and water quality of streams; contents and elevation of lakes and ponds; and water levels of ground-water wells. This volume contains discharge records for 112 gaging stations; stage records for 2 gaging stations; stage records for 2 ponds; month-end contents of 1 reservoir;...
People and water in the Assabet River basin, eastern Massachusetts
Leslie A. DeSimone
2005, Fact Sheet 2005-3034
An accounting of the inflows, outflows, and uses of water in the rapidly developing Assabet River Basin, along Interstate 495 in eastern Massachusetts, was done to quantify how people's activities alter the hydrologic system. The study identified subbasins and seasons in which outflows resulting from people's activities were relatively large...
Water resources data, New Jersey, water year 2004--volume 2. ground-water data
Walter D. Jones
2005, Water Data Report NJ-04-2
Water-resources data for the 2004 water year for New Jersey are presented in three volumes, and consists of records of stage, discharge, and water quality of streams: stage, contents, and water quality of lakes and reservoirs; and water levels and water quality of ground water. Volume 2 contains a summary...
Organic wastewater compounds, pharmaceuticals, and coliphage in ground water receiving discharge from onsite wastewater treatment systems near La Pine, Oregon: Occurrence and implications for transport
Stephen J. Hinkle, Rodney J. Weick, Jill M. Johnson, Jeffery D. Cahill, Steven G. Smith, Barbara J. Rich
2005, Scientific Investigations Report 2005-5055
The occurrence of organic wastewater compounds (components of 'personal care products' and other common household chemicals), pharmaceuticals (human prescription and nonprescription medical drugs), and coliphage (viruses that infect coliform bacteria, and found in high concentrations in municipal wastewater) in onsite wastewater (septic tank effluent) and in a shallow, unconfined, sandy...
MODFLOW data extractor program
Brendan A. Zinn, Leonard F. Konikow
2005, Open-File Report 2005-1143
EXTRACTOR is a program that extracts data from formatted and labeled MODFLOW head or drawdown files or from MODFLOW-GWT concentration or velocity files. The user specifies the number of rows, columns, and layers in the target data file, the desired time step or move number, and the range of rows,...
Precipitation-runoff processes in the Feather River basin, northeastern California, and streamflow predictability, water years 1971-97
Kathryn M. Koczot, Anne E. Jeton, Bruce McGurk, Michael D. Dettinger
2005, Scientific Investigations Report 2004-5202
Precipitation-runoff processes in the Feather River Basin of northern California determine short- and long-term streamflow variations that are of considerable local, State, and Federal concern. The river is an important source of water and power for the region. The basin forms the headwaters of the California State Water Project. Lake...
Movement of the saltwater interface in the surficial aquifer system in response to hydrologic stresses and water-management practices, Broward County, Florida
Alyssa M. Dausman, Christian D. Langevin
2005, Scientific Investigations Report 2004-5256
A study was conducted to evaluate the relation between water-level fluctuations and saltwater intrusion in Broward County, Florida. The objective was achieved through data collection at selected wells in Broward County and through the development of a variable-density ground-water flow model. The numerical model is representative of many locations in...
