Occurrence and potential adverse effects of semivolatile organic compounds in streambed sediment, United States, 1992-1995
Thomas J. Lopes, Edward T. Furlong
2001, Environmental Toxicology and Chemistry (20) 727-737
No abstract available. ...
Perspectives from the Aldo Leopold Wilderness Research Institute: Amphibians and wilderness
Paul Stephen Corn
2001, International Journal of Wilderness (7) 25-25
The decline of amphibian species has emerged as a major global conservation issue in the last decade. Last year, the Department of the Interior (DOI) initiated a major national initiative to detect trends in amphibian populations and research the causes of declines. The program, conducted principally by the U.S. Geological...
Review of: “Understanding Ore Deposits” by Kula C. Misra
Paul B. Barton Jr.
2001, Economic Geology (96) 1312-1313
No abstract available....
Geology, hydrology, and water quality in the vicinity of a Brownfield redevelopment site in East Moline, Illinois
Robert T. Kay
2001, Open-File Report 2000-400
An investigation of the geology, hydrology, and water quality in the vicinity of a Brownfield redevelopment site in East Moline, Illinois, was designed to determine if metals and organic compounds detected in the fill deposits in this area posed a threat to the water resources. The hydrologic features of concern...
A Microsoft Windows version of the MARK3 Monte Carlo resource simulator
Joseph S. Duval
2001, Open-File Report 2000-415
This publication includes a version of the MARK3 Monte Carlo resource simulator that will run under Microsoft Windows 98, NT, and 2000. The disc also includes grade and tonnage information and related deposit model files that allow the user to calculate probability curves for mineral resources. A total of 113...
Bedrock geologic map of the Saxtons River 7.5' x 15' quadrangle, Windham and Windsor counties, Vermont
N. M. Ratcliffe, T. R. Armstrong
2001, IMAP 2636
No abstract available....
Ecological characterization of streams, and fish-tissue analysis for mercury and lead at selected locations, Fort Gordon, Georgia, June 1999 to May 2000
M. Brian Gregory, Timothy C. Stamey, John B. Wellborn
2001, Open-File Report 2001-203
The U.S. Geological Survey, in cooperation with the Environmental and Natural Resources Management Office of the U.S. Army Signal Center and Fort Gordon, Ga., documented the ecological condition of selected water-bodies on the Fort Gordon military installation from June 1999 to May 2000. This study includes stream-habitat assessments, aquatic invertebrate...
Selected findings and current perspectives on urban and agricultural water quality by the National Water-Quality Assessment Program
Water Resources Division, U.S. Geological Survey
2001, Fact Sheet 047-01
Studies by the USGS National Water-Quality Assessment (NAWQA) program in the last decade describe water-quality conditions in nearly 120 agricultural and 35 urban watersheds ('urban' primarily refers to residential and commercial development over the last 50 years). The findings show that for both urban and agricultural areas, nonpoint chemical contamination...
Time-domain electromagnetic soundings near Antioch, Illinois and Berrien Springs, Michigan
David L. Campbell
2001, Open-File Report 2001-241
No abstract available....
USGS/NOAA North American packrat midden database; data dictionary
Laura E. Strickland, Robert S. Thompson, Katherine H. Anderson
2001, Open-File Report 2001-22
Observations and recommendations regarding landslide hazards related to the January 13, 2001 M-7.6 El Salvador earthquake
Randall W. Jibson, Anthony J. Crone
2001, Open-File Report 2001-141
The January 13, 2001 earthquake (M-7.6) off the coast of El Salvador triggered widespread damaging landslides in many parts of the El Salvador. In the aftermath of the earthquake, the Salvadoran government requested technical assistance through the U.S. Agency for International Development (USAID); USAID, in turn, requested help from technical...
Analysis of water levels in the Frenchman Flat area, Nevada Test Site
D.J. Bright, S.A. Watkins, B.A. Lisle
2001, Water-Resources Investigations Report 2000-4272
Analysis of water levels in 21 wells in the Frenchman Flat area, Nevada Test Site, provides information on the accuracy of hydraulic-head calculations, temporal water-level trends, and potential causes of water-level fluctuations. Accurate hydraulic heads are particularly important in Frenchman Flat where the hydraulic gradients are relatively flat (less than...
Effects of remedial grouting on the ground-water flow system at Red Rock Dam near Pella, Iowa
S. Mike Linhart, Bryan D. Schaap
2001, Water-Resources Investigations Report 2000-4231
Previous studies have shown direct evidence of under-seepage at Red Rock Dam on the Des Moines River near Pella, Iowa. Underseepage is thought to occur primarily on the northeast side of the dam in the lower bedrock of the St. Louis Limestone, which consists of discontinuous basal evaporite beds and...
Occurrence and distribution of methyl tert-butyl ether and other volatile organic compounds in drinking water in the Northeast and Mid-Atlantic regions of the United States, 1993-98
S. J. Grady, G. D. Casey
2001, Water-Resources Investigations Report 2000-4228
Data on volatile organic compounds (VOCs) in drinking water supplied by 2,110 randomly selected community water systems (CWSs) in 12 Northeast and Mid-Atlantic States indicate 64 VOC analytes were detected at least once during 1993-98. Selection of the 2,110 CWSs inventoried for this study targeted 20 percent of the 10,479...
Geochronology and geology of late Oligocene through Miocene volcanism and mineralization in the western San Juan Mountains, Colorado
Dana J. Bove, Ken Hon, Karin E. Budding, John F. Slack, Lawrence W. Snee, Ross A. Yeoman
2001, Professional Paper 1642
This paper presents 25 new 40Ar/39Ar dates from the main calc-alkaline ash-flow sheets and related younger plutons of the western San Juan volcanic field, the ash-flow sheets of the Lake City caldera cycle, and veins and other altered rocks in the Lake City region. The goal of the study was...
Evaluation of the Liu model for predicting rainfall interception in forests world-wide
Shu-Guang Liu
2001, Hydrological Processes (15) 2341-1360
Simple but effective models are needed for the prediction of rainfall interception under a full range of environmental and management conditions. The Liu model was validated using data published in the literature and was compared with two leading models in the literature: the Rutter and the Gash models. The Liu...
Effects of water withdrawals on streamflow in the Ipswich River basin, Massachusetts
Water Resources Division, U.S. Geological Survey
2001, Fact Sheet 160-00
Does diazinon pose a threat to a neighborhood stream in Tallahassee, Florida?
Marian P. Berndt, Hilda H. Hatzell
2001, Fact Sheet 143-00
The water quality of Lafayette Creek was studied from March 1993 to December 1995 as part of the National Water-Quality Assessment Program of the U.S.Geological Survey. Diazinon was specifically studied in the Lafayette Creek watershed, a residential area in northeastern Tallahassee, Fla. Diazinon and other pesticides applied directly to the...
Estimation of hydraulic parameters from an unconfined aquifer test conducted in a glacial outwash deposit, Cape Cod, Massachusetts
Allen F. Moench, Stephen P. Garabedian, Denis R. LeBlanc
2001, Professional Paper 1629
An aquifer test conducted in a sand and gravel, glacial outwash deposit on Cape Cod, Massachusetts was analyzed by means of a model for flow to a partially penetrating well in a homogeneous, anisotropic unconfined aquifer. The model is designed to account for all significant mechanisms expected to influence drawdown...
Importance of the predator's ecological neighborhood in modeling predation on migrating prey
Donald L. DeAngelis, James H. Petersen
2001, Oikos (94) 315-325
Most mathematical descriptions of predator-prey interactions fail to take into account the spatio-temporal structures of the populations, which can lead to errors or misinterpretations. For example, a compact pulse of prey migrating through a field of quasi-stationary predators may not be well described by standard predator-prey models, because the predators...
Water-level altitudes in wells completed in the Jasper aquifer, greater Houston area, Texas, Spring 2000
L.S. Coplin
2001, Open-File Report 2001-147
This report, prepared in cooperation with the Harris-Galveston Coastal Subsidence District, presents a map showing the approximate water-level altitudes in spring 2000 in wells completed in the Jasper aquifer (back of page). The most recent previously published water-level-altitude map for the Jasper aquifer in the region is by Popkin (1971)....
Hydrogeology and physical characteristics of water samples at the Red River aluminum site, Stamps, Arkansas, April 2001
John B. Czarnecki, Gregory P. Stanton, David A. Freiwald
2001, Open-File Report 2001-201
The Red River Aluminum site near Stamps, Arkansas, contains waste piles of salt cake and metal byproducts from the smelting of aluminum. The waste piles are subjected to about 50 inches of rainfall a year, resulting in the dissolution of the salts and metal. To assess the potential threat to...
Bathymetry and selected perspective views of Crater Lake, Oregon
J.V. Gardner, Peter Dartnell, Laurent Hellequin, C. R. Bacon, L. A. Mayer, M.W. Buktenica
2001, Water-Resources Investigations Report 2001-4046
No abstract available...
Water-quality assessment within a drainage control district in southeastern Florida
A.C. Lietz
2001, Fact Sheet 149-00
The U.S. Geological Survey (USGS) began an extensive ground- and surface-water quality study in July 1989 to define the baseline water quality within a southeastern Florida drainage district and to develop a data base for future water-resource planning and management. Results were published in a USGS report (Lietz, 1996), comparing...
Sedimentation history of Waimaluhia Reservoir during highway construction, Oahu, Hawaii, 1983-98
Michael F. Wong
2001, Water-Resources Investigations Report 2001-4001
Nine sedimentation surveys conducted from 1983 to 1998 at Waimaluhia Reservoir determined the rate of sediment accumulation in the reservoir during H-3 Highway construction upstream of the reservoir. Rates of storage-capacity loss ranged from 1.1 acre-feet per year between 1983 and 1988 to 4.9 acre-feet per year between 1988 and...
