Lithologic coring in the lower Anacostia tidal watershed, Washington, D.C., July 2002
Frederick J. Tenbus
2003, Open-File Report 2003-318
Little is known about the volumetric flux of ground water to the lower tidal Anacostia River, or whether ground-water flow is an important component of the contaminant load in this part of the Anacostia River. The watershed is in the eastern part of Washington, D.C., and has been subjected to...
Stratigraphy and vertical hydraulic conductivity of the St. Francois Confining Unit in the Viburnum Trend and evaluation of the Unit in the Viburnum Trend and exploration areas, southeastern Missouri
Michael J. Kleeschulte, Cheryl M. Seeger
2003, Water-Resources Investigations Report 2003-4329
The confining ability of the St. Francois confining unit (Derby-Doerun Dolomite and Davis Formation) was evaluated in ten townships (T. 31?35 N. and R. 01?02 W.) along the Viburnum Trend of southeastern Missouri. Vertical hydraulic conductivity data were compared to similar data collected during two previous studies 20 miles south...
Evaluation of Streamflow Requirements for Habitat Protection by Comparison to Streamflow Characteristics at Index Streamflow-Gaging Stations in Southern New England
David S. Armstrong, Gene W. Parker, Todd A. Richards
2003, Water-Resources Investigations Report 2003-4332
Streamflow characteristics and methods for determining streamflow requirements for habitat protection were investigated at 23 active index streamflow-gaging stations in southern New England. Fish communities sampled near index streamflow-gaging stations in Massachusetts have a high percentage of fish that require flowing-water habitats for some or all of their life cycle....
MODFLOW-2000, the U.S. Geological Survey Modular Ground-Water Model--Documentation of the SEAWAT-2000 Version with the Variable-Density Flow Process (VDF) and the Integrated MT3DMS Transport Process (IMT)
Christian D. Langevin, W. Barclay Shoemaker, Weixing Guo
2003, Open-File Report 2003-426
SEAWAT-2000 is the latest release of the SEAWAT computer program for simulation of three-dimensional, variable-density, transient ground-water flow in porous media. SEAWAT-2000 was designed by combining a modified version of MODFLOW-2000 and MT3DMS into a single computer program. The code was developed using the MODFLOW-2000 concept of a process, which...
Debris-flow hazards caused by hydrologic events at Mount Rainier, Washington
James W. Vallance, Michelle L. Cunico, Steve P. Schilling
2003, Open-File Report 2003-368
At 4393 m, ice-clad Mount Rainier has great potential for debris flows owing to its precipitous slopes and incised steep valleys, the large volume of water stored in its glaciers, and a mantle of loose debris on its slopes. In the past 10,000 years, more than sixty Holocene lahars have...
Emergency Assessment of Debris-Flow Hazards from Basins Burned by the Piru, Simi, and Verdale Fires of 2003, Southern California
Susan H. Cannon, Joseph E. Gartner, Michael G. Rupert, John A. Michael
2003, Open-File Report 2003-481
These maps present preliminary assessments of the probability of debris-flow activity and estimates of peak discharges that can potentially be generated by debris-flows issuing from basins burned by the Piru, Simi and Verdale Fires of October 2003 in southern California in response to the 25-year, 10-year, and 2-year 1-hour rain...
Estimating the susceptibility of surface water in Texas to nonpoint-source contamination by use of logistic regression modeling
William A. Battaglin, Randy L. Ulery, Thomas Winterstein, Toby Welborn
2003, Water-Resources Investigations Report 2003-4205
In the State of Texas, surface water (streams, canals, and reservoirs) and ground water are used as sources of public water supply. Surface-water sources of public water supply are susceptible to contamination from point and nonpoint sources. To help protect sources of drinking water and to aid water managers in...
Preliminary Mineralogic and Stable Isotope Studies of Altered Summit and Flank Rocks and Osceola Mudflow Deposits on Mount Rainier, Washington
Robert O. Rye, George N. Breit, David R. Zimbelman
2003, Open-File Report 2003-464
About 5600 years ago part of Mount Rainier?s edifice collapsed with the resultant Osceola Mudflow traveling more than 120 km and covering an area of at least 505 km2. Mineralogic and stable isotope studies were conducted on altered rocks from outcrops near the summit and east flank of the volcano...
Geologic map of the Puye Quadrangle, Los Alamos, Rio Arriba, Sandoval, and Santa Fe Counties, New Mexico
David P. Dethier
2003, Miscellaneous Field Studies Map 2419
The Puye quadrangle covers an area on the eastern flank of the Jemez Mountains, north of Los Alamos and west of Espanola, New Mexico. Most of the quadrangle consists of a dissected plateau that was formed on the resistant caprock of the Bandelier...
Hydrogeology and Simulated Effects of Ground-Water Withdrawals in the Big River Area, Rhode Island
Gregory E. Granato, Paul M. Barlow, David C. Dickerman
2003, Water-Resources Investigations Report 2003-4222
The Rhode Island Water Resources Board is considering expanded use of ground-water resources from the Big River area because increasing water demands in Rhode Island may exceed the capacity of current sources. This report describes the hydrology of the area and numerical simulation models that were used to examine effects...
Aquatic assemblages and their relation to temperature variables of least-disturbed streams in the Salmon River basin, central Idaho, 2001
Douglas S. Ott, Terry R. Maret
2003, Water-Resources Investigations Report 2003-4076
In the late 1990s, Idaho’s established stream temperature criteria for the protection of coldwater biota and salmonid spawning were considered inadequate because the criteria did not agree with observed biological conditions in many instances and did not allow for variability in environmental condition or species diversity across a broad area such as the entire State of Idaho. In...
Isotopes and ages in the northern Peninsular Ranges batholith, southern California
Ronald W. Kistler, Joseph L. Wooden, Douglas M. Morton
2003, Open-File Report 2003-489
Strontium, oxygen and lead isotopic and rubidium-strontium geochronologic studies have been completed on Cretaceous and Jurassic (?) granitic rock samples from the northern Peninsular Ranges batholith in southern California. Many of these samples were collected systematically and studied chemically by A. K. Baird and colleagues (Baird and others, 1979). The...
Geologic map of the Bonners Ferry 30' x 60' quadrangle, Idaho and Montana
Fred K. Miller, Russell F. Burmester
2003, Miscellaneous Field Studies Map 2426
This data set maps and describes the geology of the Bonners Ferry 30' x 60' quadrangle, Idaho and Montana. The bedrock geology of the Bonners Ferry quadrangle consists of sedimentary, metamorphic, and granitic rocks ranging in age from Middle Proterozoic to Eocene. Bedrock units include rocks of (1) the Middle...
Simulation of Temperature, Nutrients, Biochemical Oxygen Demand, and Dissolved Oxygen in the Catawba River, South Carolina, 1996-97
Toby D. Feaster, Paul Conrads, Wladmir B. Guimaraes, Curtis L. Sanders Jr., Jerad D. Bales
2003, Water-Resources Investigations Report 2003-4092
Time-series plots of dissolved-oxygen concentrations were determined for various simulated hydrologic and point-source loading conditions along a free-flowing section of the Catawba River from Lake Wylie Dam to the headwaters of Fishing Creek Reservoir in South Carolina. The U.S. Geological Survey one-dimensional dynamic-flow model, BRANCH, was used to simulate hydrodynamic...
Trace element and Nd, Sr, Pb isotope geochemistry of Kilauea Volcano, Hawai'i, near-vent eruptive products: 1983-2001
Carl R. Thornber, James R. Budahn, W. Ian Ridley, Daniel M. Unruh
2003, Open-File Report 2003-493
This open-file report serves as a repository for geochemical data referred to in U.S. Geological Survey Professional Paper 1676 (Heliker, Swanson, and Takahashi, eds., 2003), which includes multidisciplinary research papers pertaining to the first twenty years of Puu Oo Kupaianaha eruption activity. Details of eruption characteristics and nomenclature are provided...
Modeling uncertainty: Quicksand for water temperature modeling
John M. Bartholow
2003, Hydrological Science and Technology (19) 221-232
Uncertainty has been a hot topic relative to science generally, and modeling specifically. Modeling uncertainty comes in various forms: measured data, limited model domain, model parameter estimation, model structure, sensitivity to inputs, modelers themselves, and users of the results. This paper will address important components of uncertainty in modeling water...
Scrubbing masks magmatic degassing during repose at Cascade-Range and Aleutian-Arc volcanoes
Robert B. Symonds, C. J. Janik, William C. Evans, B.E. Ritchie, Dale Counce, R.J. Poreda, Mark Iven
2003, Open-File Report 2003-435
Between 1992 and 1998, we sampled gas discharges from ≤173°C fumaroles and springs at 12 quiescent but potentially restless volcanoes in the Cascade Range and Aleutian Arc (CRAA) including Mount Shasta, Mount Hood, Mount St. Helens, Mount Rainier, Mount Baker, Augustine Volcano, Mount Griggs, Trident, Mount Mageik, Aniakchak Crater, Akutan,...
Techniques for estimating flood-peak discharges of rural, unregulated streams in Ohio
G. F. Koltun
2003, Water-Resources Investigations Report 2003-4164
Regional equations for estimating 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood-peak discharges at ungaged sites on rural, unregulated streams in Ohio were developed by means of ordinary and generalized least-squares (GLS) regression techniques. One-variable, simple equations and three-variable, full-model equations were developed on the basis of selected basin...
Simulation of net infiltration and potential recharge using a distributed-parameter watershed model of the Death Valley region, Nevada and California
Joseph A. Hevesi, Alan L. Flint, Lorraine E. Flint
2003, Water-Resources Investigations Report 2003-4090
This report presents the development and application of the distributed-parameter watershed model, INFILv3, for estimating the temporal and spatial distribution of net infiltration and potential recharge in the Death Valley region, Nevada and California. The estimates of net infiltration quantify the downward drainage of water across the lower boundary of...
Development and testing of method for assessing and mapping agricultural areas susceptible to atrazine leaching in the state of Washington
Frank D. Voss
2003, Water-Resources Investigations Report 2003-4173
In a joint effort by the Washington State Department of Agriculture, the Washington Department of Ecology, and the U.S. Geological Survey, the Environmental Protection Agency's Pesticide Root Zone Model and a Geographic Information System were used to develop and test a method for screening and mapping the susceptibility of ground...
Comparison of two methods for delineating land use near monitoring wells used for assessing quality of shallow ground water
D. L. Lorenz, R. M. Goldstein, T.K. Cowdery, J.D. Stoner
2003, Water-Resources Investigations Report 2003-4067
Two methods were compared for delineating land use near shallow monitoring wells. These wells were used to assess the effects of agricultural cropland on the quality of recently recharged ground water in two sand and gravel aquifers located near land surface. The two methods for delineating land use near wells...
Simulation of streamflow and water quality in the Christina River subbasin and overview of simulations in other subbasins of the Christina River Basin, Pennsylvania, Maryland, and Delaware, 1994-98
Lisa A. Senior, Edward H. Koerkle
2003, Water-Resources Investigations Report 2003-4193
The Christina River Basin drains 565 square miles (mi2) in Pennsylvania and Delaware and includes the major subbasins of Brandywine Creek, Red Clay Creek, White Clay Creek, and Christina River. The Christina River subbasin (exclusive of the Brandywine, Red Clay, and White Clay Creek subbasins) drains an area of 76...
Preliminary volcano-hazard assessment for Great Sitkin Volcano, Alaska
Christopher F. Waythomas, Thomas P. Miller, Christopher J. Nye
2003, Open-File Report 2003-112
Great Sitkin Volcano is a composite andesitic stratovolcano on Great Sitkin Island (51°05’ N latitude, 176°25’ W longitude), a small (14 x 16 km), circular volcanic island in the western Aleutian Islands of Alaska. Great Sitkin Island is located about 35 kilometers northeast of the community of Adak on Adak...
Recalibration of a ground-water flow model of the Mississippi River Valley alluvial aquifer of northeastern Arkansas, 1918-1998, with simulations of water levels caused by projected ground-water withdrawals through 2049
Thomas B. Reed
2003, Water-Resources Investigations Report 2003-4109
A digital model of the Mississippi River Valley alluvial aquifer in eastern Arkansas was used to simulate ground-water flow for the period from 1918 to 2049. The model results were used to evaluate effects on water levels caused by demand for ground water from the alluvial aquifer, which has increased...
Ecosystem history of southern and central Biscayne Bay: Summary report on sediment core analyses
G. Lynn Wingard, Thomas M. Cronin, G. S. Dwyer, S. E. Ishman, Debra A. Willard, C. W. Holmes, C.E. Bernhardt, C.P. Williams, M. E. Marot, J.B. Murray, R.G. Stamm, J.H. Murray, C. Budet
2003, Open-File Report 2003-375
During the last century, the environs of Biscayne Bay have been greatly affected by anthropogenic alteration through urbanization of the Miami/Dade County area. The sources, timing, delivery, and quality of freshwater flow into the Bay have been changed by construction of a complex canal system that controls movement of water...
