Susceptibility of ground water to surface and shallow sources of contamination, Orange County, North Carolina
Silvia Terziotti, J. L. Eimers
1999, Open-File Report 99-179
In 1998, the relative susceptibility of ground water in Orange County, North Carolina,to contamination from surface and shallow sources was evaluated. A geographic information system was used to build three county-wide layers--soil permeability, land use/land cover, and land-surface slope. The harmonic mean permeability of soil layers was used to estimate...
Physical stratigraphy, paleontology, and magnetostratigraphy of the USGS-Santee Coastal Reserve core (CHN-803), Charleston County, South Carolina
Lucy E. Edwards, G. S. Gohn, Self-Trail J.M., D.C. Prowell, L.M. Bybell, L. P. Bardot, J. V. Firth, B.T. Huber, N. O. Frederiksen, K.G. MacLeod
1999, Open-File Report 99-308-B
The Santee Coastal Reserve core, a 545-ft-deep corehole in northeastern Charleston County, South Carolina, recovered sediments of Late Cretaceous, Paleocene, Eocene, and Quaternary age. The deepest sediments, the Donoho Creek Formation (545-475.7 ft), consist of 69.3 ft of muddy calcareous sand of marine origin. This formation is placed within the...
Estimated hydraulic properties for the surficial- and bedrock-aquifer system, Meddybemps, Maine
Forest P. Lyford, Stephen P. Garabedian, Bruce P. Hansen
1999, Open-File Report 99-199
Analytical and numerical-modeling methods were used to estimate hydraulic properties of the aquifer system underlying the Eastern Surplus Company Superfund Site in Meddybemps, Maine. Estimates of hydraulic properties are needed to evaluate pathways for contaminants in ground water and to support evaluation and selection of remediation measures for contaminated ground...
Hydrologic consequences of hot-rock/snowpack interactions at Mount St. Helens Volcano, Washington
Thomas C. Pierson
1999, Professional Paper 1586
Emplacement of hot volcanic debris onto a thick snowpack can trigger hazardous rapid flows of sediment (including ice grains) and water, which can travel far beyond the flanks of a volcano. Five papers in this volume document aspects of rapid-snowmelt events that occurred in Mount St. Helens between 1982 and...
Selection procedure and salient information for volatile organic compounds emphasized in the National Water-Quality Assessment Program
David A. Bender, John S. Zogorski, M.J. Halde, B.L. Rowe
1999, Open-File Report 99-182
New York
Water Resources Division, U.S. Geological Survey
1999, Fact Sheet 033-99
New reporting procedures based on long-term method detection levels and some considerations for interpretations of water-quality data provided by the U.S. Geological Survey National Water Quality Laboratory
Carolyn J. Oblinger Childress, William T. Foreman, Brooke F. Connor, Thomas J. Maloney
1999, Open-File Report 99-193
This report describes the U.S. Geological Survey National Water Quality Laboratory's approach for determining long-term method detection levels and establishing reporting levels, details relevant new reporting conventions, and provides preliminary guidance on interpreting data reported with the new conventions. At the long-term method detection level concentration, the risk of a...
Thickness of Cenozoic Deposits of Yucca Flat Inferred from Gravity Data, Nevada Test Site, Nevada
G. A. Phelps, V.E. Langenheim, R.C. Jachens
1999, Open-File Report 99-310
The basin-basement contact for Yucca Flat was modeled using isostatic gravity data, a linear density-depth function for the basin deposits, and drill-hole constraints to produce a digital database of both the depth to basement and the gravitational anomaly associated with the basement rocks. The model predicts a depth of roughly...
Data on the crystal growth of calcite from calcium bicarbonate solutions at 34 degrees C and CO2 partial pressures of 0.101, 0.0156 and 0.00102 atmospheres
Niel Plummer, Eurybiades Busenberg
1999, Open-File Report 99-247
No abstract available....
Gravity and magnetic study of the Pahute Mesa and Oasis Valley region, Nye County, Nevada
Edward A. Mankinen, Thomas G. Hildenbrand, Gary L. Dixon, Edwin H. McKee, Christopher J. Fridrich, Randell J. Laczniak
1999, Open-File Report 99-303
Regional gravity and aeromagnetic maps reveal the existence of deep basins underlying much of the southwestern Nevada volcanic field, approximately 150 km northwest of Las Vegas. These maps also indicate the presence of prominent features (geophysical lineaments) within and beneath the basin fill. Detailed gravity surveys were conducted in order...
Polychlorinated biphenyls and 2,3,7,8-tetrachlorodibenzo-p-dioxin equivalents in tree swallows from the upper Hudson River, New York State, USA
Anne L. Secord, John P. McCarty, Kathy R. Echols, John C. Meadows, Robert W. Gale, Donald E. Tillitt
1999, Environmental Toxicology and Chemistry (18) 2519-2525
The upper Hudson River of New York State, USA, is contaminated with polychlorinated biphenyls (PCBs) as a result of industrial discharges throughout the latter half of this century. In 1994 and 1995, we monitored the transfer of PCBs from aquatic sediments to a terrestrial wildlife community using the tree swallow...
Archive of seismic-reflection data collected aboard RV CORLISS cruise CRLS98014 in the Columbia River estuary, Willapa Bay, and off southern Washington inner continental shelf
V.A. Cross, D.C. Twichell, K. F. Parolski
1999, Open-File Report 99-307
Ground-water conditions in Georgia, 1998
Alan M. Cressler
1999, Open-File Report 99-204
Ground-water conditions in Georgia during 1998 and for the period of record were evaluated using data from U.S. Geological Survey ground-water-level and ground-water-quality monitoring networks. Data for 1998 included in this report are from continuous water-level records from 130 wells and chloride analyses from 14 wells. Data from one well...
Summary of ground-water data for Tutuila and Aunuu, American Samoa, for October 1987 through September 1997
Scot K. Izuka
1999, Open-File Report 99-252
Ground-water and rainfall data for the period October 1987 through September 1997 from Tutuila and Aunuu, American Samoa, are plotted in time-series graphs and summarized. The data include pumpage and chloride concentrations from 53 production wells on Tutuila, including 5 new wells that were put into production between October 1996...
Hydrogeology and analysis of aquifer characteristics in west-central Pinellas County, Florida
J. C. Broska, H.L. Barnette
1999, Open-File Report 99-185
The U.S. Geological Survey, in cooperation with Pinellas County, Florida, conducted an investigation to describe the hydrogeology and analyze the aquifer characteristics in west-central Pinellas County. A production test well and four monitor wells were constructed in Pinellas County at Walsingham Park during 1996-97. Water-quality sampling, static and dynamic borehole...
Plan of study to define hydrogeologic characteristics of the Madera Limestone in the east mountain area of central New Mexico
D.R. Rankin
1999, Open-File Report 99-201
The east mountain area of central New Mexico includes the eastern one-third of Bernalillo County and portions of Sandoval, Santa Fe, and Torrance Counties. The area covers about 320 square miles. The Madera Limestone, the principal aquifer in the east mountain area, is the sole source of water for domestic, municipal,...
Summary of suspended-solids concentration data, San Francisco Bay, California, water year 1997
Paul A. Buchanan, David H. Schoellhamer
1999, Open-File Report 99-189
Geothermal elements in lichens of Yellowstone National Park, USA
James P. Bennett, C. M. Wetmore
1999, Environmental and Experimental Botany (42) 191-200
Geothermal features (e.g. geysers, fumaroles, vents, and springs) emit gaseous mercury, sulfur and heavy metals and therefore, are natural sources of these elements in the atmosphere. Field studies of heavy metals in lichens in Italy have detected elevated concentrations near geothermal power plants, and have determined that the origin of...
Water quality and discharge data for St. Joseph Bay, Florida, 1997-98
M. P. Berndt, M.A. Franklin
1999, Open-File Report 99-190
Historical data were compiled on water quality and water levels for the St. Joseph Bay area to assess quality of possible sources of land-derived water into the Bay. Ground-water quality data were compiled from Florida Department of Environmental Protection and surface-water quality data were compiled from U.S.Geological Survey files. Water-quality...
Preliminary mineral resource assessment of selected industrial and collector minerals of the Prescott National Forest, Arizona
J. D. Bliss
1999, Open-File Report 99-305
Subduction zone and crustal dynamics of western Washington; a tectonic model for earthquake hazards evaluation
Dal Stanley, Antonio H. Villasenor, Harley Benz
1999, Open-File Report 99-311
The Cascadia subduction zone is extremely complex in the western Washington region, involving local deformation of the subducting Juan de Fuca plate and complicated block structures in the crust. It has been postulated that the Cascadia subduction zone could be the source for a large thrust earthquake, possibly as large...
Aeromagnetic and Gravity Maps of the Central Marysvale Volcanic Field, Southwestern Utah
David L. Campbell, Thomas A. Steven, Charles G. Cunningham, Peter D. Rowley
1999, IMAP 2645-B
Gravity and aeromagnetic features in the Marysvale volcanic field result from the composite effects of many factors, including rock composition, style of magmatic emplacement, type and intensity of rock alteration, and effects of structural evolution. Densities and magnetic properties measured on a suite of rock samples from the Marysvale volcanic field...
Stream channel cross sections for a reach of the Boise River in Ada County, Idaho
Jon Hortness, Douglas C. Werner
1999, Open-File Report 99-211
The Federal Emergency Management Agency produces maps of areas that are likely to be inundated during major floods, usually the 100-year, or 1-percent probability, flood. The maps, called Flood Insurance Rate Maps, are used to determine flood insurance rates for homes, businesses, or other structures located in flood-prone areas. State...
1997 volcanic activity in Alaska and Kamchatka: summary of events and response of the Alaska Volcano Observatory
Robert G. McGimsey, Kristi L. Wallace
1999, Open-File Report 99-448
The Alaska Volcano Observatory (AVO) monitors over 40 historically active volcanoes along the Aleutian Arc. Twenty are seismically monitored and for the rest, the AVO monitoring program relies mainly on pilot reports, observations of local residents and ship crews, and daily analysis of satellite images. In 1997, AVO responded to...
Water-quality and bottom-sediment-chemistry data for Left Hand Valley Reservoir, Boulder County, Colorado, January-August 1998
R. A. Kimbrough
1999, Open-File Report 99-192
No abstract available....
