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Analyses and estimates of hydraulic conductivity from slug tests in alluvial aquifer underlying Air Force Plant 4 and Naval Air Station-Joint Reserve Base Carswell Field, Fort Worth, Texas
Natalie A. Houston, Christopher L. Braun
2004, Scientific Investigations Report 2004-5225
This report describes the collection, analyses, and distribution of hydraulic-conductivity data obtained from slug tests completed in the alluvial aquifer underlying Air Force Plant 4 and Naval Air Station-Joint Reserve Base Carswell Field, Fort Worth, Texas, during October 2002 and August 2003 and summarizes previously available hydraulic-conductivity data. The U.S....
Map showing susceptibility to rainfall-triggered landslides in the municipality of Ponce, Puerto Rico
Matthew C. Larsen, Marilyn Santiago, Randall W. Jibson, Eduardo Questell
2004, Scientific Investigations Map 2818
The risk of landslides during intense or prolonged rainfall is high in steeply sloping areas such as the municipality of Ponce, where 56 percent of the 301-square-kilometer municipality has slopes 10 degrees or greater. These are areas where the possibility of landsliding increases when triggering conditions such as heavy rainfall...
Thrust-induced collapse of mountains-an example from the "Big Bend" region of the San Andreas Fault, western Transverse Ranges, California
Karl S. Kellogg
2004, Scientific Investigations Report 2004-5206
Mount Pinos and Frazier Mountain are two prominent mountains just south of the San Andreas fault in the western Transverse Ranges of southern California, a region that has undergone rapid Quaternary contraction and uplift. Both mountains are underlain, at least in part, by thrusts that place granitic and gneissic rocks...
Seismic monitoring at Cascade volcanic centers, 2004 — Status and recommendations
Seth C. Moran
2004, Scientific Investigations Report 2004-5211
The purpose of this report is to assess the current (May, 2004) status of seismic monitoring networks at the 13 major Cascade volcanic centers. Included in this assessment are descriptions of each network, analyses of the ability of each network to detect and to locate seismic activity, identification of specific...
Simulated effects of pumping and drought on ground-water levels and the freshwater-saltwater interface on the north fork of Long Island, New York
Paul E. Misut, Christopher Schubert, Richard G. Bova, Steven R. Colabufo
2004, Water-Resources Investigations Report 2003-4184
Ground water is the sole source of freshwater on the North Fork of Long Island. Future demands for the limited freshwater supply during a prolonged drought could cause drawdowns that induce saltwater intrusion and render the supply unusable. The freshwater system on the North Fork contains several localized, hydraulically isolated...
An operation manual for a time-series, storm-activated suspended sediment sampler deployed in the coastal ocean: function, maintenance, and testing procedures
Richard R. Rendigs, Michael H. Bothner
2004, Open-File Report 2004-1443
This manual describes the operation and testing procedures for two models of a multi-port suspended sediment sampler that are moored in the coastal ocean and that collect samples on a programmable time schedule that can be interrupted to collect during a storm. The ability to sense and collect samples before,...
Section 1. Simulation of surface-water integrated flow and transport in two-dimensions: SWIFT2D user's manual
Raymond W. Schaffranek
2004, Techniques and Methods 6-B1
A numerical model for simulation of surface-water integrated flow and transport in two (horizontal-space) dimensions is documented. The model solves vertically integrated forms of the equations of mass and momentum conservation and solute transport equations for heat, salt, and constituent fluxes. An equation of state for salt balance directly couples...
Conceptualization and simulation of the Edwards aquifer, San Antonio region, Texas
Richard J. Lindgren, A.R. Dutton, S.D. Hovorka, S.R.H. Worthington, Scott Painter
2004, Scientific Investigations Report 2004-5277
A new numerical ground-water-flow model (Edwards aquifer model) that incorporates important components of the latest information and plausible conceptualization of the Edwards aquifer was developed. The model includes both the San Antonio and Barton Springs segments of the Edwards aquifer in the San Antonio region, Texas, and was calibrated for...
Coastal-change and glaciological map of the Eights Coast area, Antarctica, 1972-2001
Charles Swithinbank, Richard S. Williams Jr., Jane G. Ferrigno, Kevin M. Foley, Christine E. Rosanova, Lina M. Dailide
2004, IMAP 2600-E
Changes in the area and volume of polar ice sheets are intricately linked to changes in global climate, and the resulting changes in sea level may severely impact the densely populated coastal regions on Earth. Melting of the West Antarctic part alone of the Antarctic ice sheet could cause a...
Summary of hydrogeology and simulation of ground-water flow and land-surface subsidence in the northern part of the Gulf Coast aquifer system, Texas
Mark C. Kasmarek, James L. Robinson
2004, Fact Sheet 2004-3076
The northern part of the Gulf Coast aquifer system in Texas, which includes the Chicot, Evangeline, and Jasper aquifers, supplies most of the water used for industrial, municipal, agricultural, and commercial purposes for an approximately 25,000- square-mile (mi2) area that includes the Beaumont and Houston metropolitan areas. The area has...
Simulation of ground-water flow, contributing recharge areas, and ground-water travel time in the Missouri River alluvial aquifer near Ft. Leavenworth, Kansas
Brian P. Kelly
2004, Scientific Investigations Report 2004-5215
The Missouri River alluvial aquifer near Ft. Leavenworth, Kansas, supplies all or part of the drinking water for Ft. Leavenworth; Leavenworth, Kansas; Weston, Missouri; and cooling water for the Kansas City Power and Light, Iatan Power Plant. Ground water at three sites within the alluvial aquifer near the Ft. Leavenworth...
Hydrogeology and simulation of regional ground-water-level declines in Monroe County, Michigan
Howard W. Reeves, Kirsten V. Wright, J.R. Nicholas
2004, Water-Resources Investigations Report 2003-4312
Observed ground-water-level declines from 1991 to 2003 in northern Monroe County, Michigan, are consistent with increased ground-water demands in the region. In 1991, the estimated ground-water use in the county was 20 million gallons per day, and 80 percent of this total was from quarry dewatering. In 2001, the estimated...
Characterization of water quality in Government Highline Canal at Camp 7 Diversion and Highline Lake, Mesa County, Colorado, July 2000 through September 2003
Roderick F. Ortiz
2004, Scientific Investigations Report 2004-5281
The U.S. Geological Survey, in cooperation with the Colorado Division of Parks and Recreation, collected and analyzed water-quality data for the Government Highline Canal and Highline Lake from July 2000 through September 2003. Implementation of modernization strategies for the canal, which supplies most of the water to the lake, would...
Evaluation of ground-water contribution to streamflow in coastal Georgia and adjacent parts of Florida and South Carolina
Sherlyn Priest
2004, Scientific Investigations Report 2004-5265
Stream-aquifer relations in the coastal area of Georgia and adjacent parts of Florida and South Carolina were evaluated as part of the Coastal Georgia Sound Science Initiative, the Georgia Environmental Protection Division's strategy to protect the Upper Floridan aquifer from saltwater intrusion. Ground-water discharge to streams was estimated using three...
Simulation of ground-water flow in the Potomac-Raritan-Magothy aquifer system, Pennsauken Township and vicinity, New Jersey
Daryll A. Pope, Martha K. Watt
2004, Scientific Investigations Report 2004-5025
The Potomac-Raritan-Magothy aquifer system is one of the primary sources of potable water in the Coastal Plain of New Jersey, particularly in heavily developed areas along the Delaware River. In Pennsauken Township, Camden County, local drinking-water supplies from this aquifer system have been contaminated by hexavalent chromium at concentrations that...
Long-Term Oceanographic Observations in Western Massachusetts Bay Offshore of Boston, Massachusetts: Data Report for 1989-2002
Bradford Butman, Michael H. Bothner, P. Soupy Alexander, Frances L. Lightsom, Marinna A. Martini, Benjamin T. Gutierrez, William S. Strahle
2004, Data Series 74
This data report presents long-term oceanographic observations made in western Massachusetts Bay at two locations: (1) 42 deg 22.6' N., 70 deg 47.0' W. (Site A, 33 m water depth) from December 1989 through December 2002 (figure 1), and (2) 42 deg 9.8' N., 70 deg 38.4' W. (Site B,...
A method for simulating transient ground-water recharge in deep water-table settings in central Florida by using a simple water-balance/transfer-function model
Andrew M. O’Reilly
2004, Scientific Investigations Report 2004-5195
A relatively simple method is needed that provides estimates of transient ground-water recharge in deep water-table settings that can be incorporated into other hydrologic models. Deep water-table settings are areas where the water table is below the reach of plant roots and virtually all water that is not lost to...
Tree-regeneration and mortality patterns and hydrologic change in a forested karst wetland--Sinking Pond, Arnold Air Force Base, Tennessee
William J. Wolfe, Jonathan P. Evans, Sarah McCarthy, W. Scott Gain, Bradley A. Bryan
2004, Water-Resources Investigations Report 2003-4217
Multiple lines of evidence point to climate change as the driving factor suppressing tree regeneration since 1970 in Sinking Pond, a 35-hectare seasonally flooded karst depression located on Arnold Air Force Base near Manchester, Tennessee. Annual censuses of 162-193 seedling plots from 1997 through 2001 demonstrate that the critical stage...
Simulation of the ground-water-flow system in the Kalamazoo County area, Michigan
Carol L. Luukkonen, Stephen P. Blumer, T. L. Weaver, Julie Jean
2004, Scientific Investigations Report 2004-5054
A ground-water-flow model was developed to investigate the ground-water resources of Kalamazoo County. Ground water is widely used as a source of water for drinking and industry in Kalamazoo County and the surrounding area. Additionally, lakes and streams are valued for their recreational and aesthetic uses. Stresses on the ground-water...
Phosphorus and suspended sediment load estimates for the Lower Boise River, Idaho, 1994-2002
Mary M. Donato, Dorene E. MacCoy
2004, Scientific Investigations Report 2004-5235
The U.S. Geological Survey used LOADEST, newly developed load estimation software, to develop regression equations and estimate loads of total phosphorus (TP), dissolved orthophosphorus (OP), and suspended sediment (SS) from January 1994 through September 2002 at four sites on the lower Boise River: Boise River below Diversion Dam near Boise,...
Assessment of soil and water contaminants from selected locations in and near the Idaho Army National Guard Orchard Training Area, Ada County, Idaho, 2001-2003
D. J. Parliman
2004, Scientific Investigations Report 2004-5207
In 2001, the National Guard Bureau and the U.S. Geological Survey began a project to compile hydrogeologic data and determine presence or absence of soil, surface-water, and ground-water contamination at the Idaho Army National Guard Orchard Training Area in southwestern Idaho. Between June 2002 and April 2003, a total of...
Water resources of Sweetwater County, Wyoming
Jon P. Mason, Kirk A. Miller
2004, Scientific Investigations Report 2004-5214
Sweetwater County is located in the southwestern part of Wyoming and is the largest county in the State. A study to quantify the availability and describe the chemical quality of surface-water and ground-water resources in Sweetwater County was conducted by the U.S. Geological Survey in cooperation with the Wyoming State...
Surficial materials in the conterminous United States
David R. Soller, Marith C. Reheis
2004, Open-File Report 2003-275
Introduction: The Earth's bedrock is overlain in many places by a loosely compacted and mostly unconsolidated blanket of sediments in which soils commonly are developed. These sediments generally were eroded from underlying rock, and then were transported and deposited. In places, they exceed 1,000 ft (330 m) in thickness. Where...
Digital data used to relate nutrient inputs to water quality in the Chesapeake Bay watershed, version 3.0
John W. Brakebill, Stephen D. Preston
2004, Open-File Report 2004-1433
Chesapeake Bay restoration efforts are focused on improving water quality, living resources, and ecological habitats by 2010. One aspect of the water-quality restoration is the refinement of strategies designed to implement nutrient-reduction practices within the Bay watershed. These strategies are being refined and implemented by resource managers of the Chesapeake...