Simulated Ground-Water-Flow Responses to Geohydrologic Characteristics, Corinna, Maine
Thomas J. Mack, Robert W. Dudley
2001, Water-Resources Investigations Report 2001-4079
Ground-water-flow simulations of an idealization of surficial and bedrock aquifers of the East Branch Sebasticook River Valley, in Corinna, Maine, were done to test the effects of known or hypothesized geohydrologic characteristics on the local and regional ground-water-flow system. The purpose of the simulations was to develop a better understanding...
Geologic map and digital database of the Conejo Well 7.5 minute quadrangle, Riverside County, southern California
Robert E. Powell
2001, Open-File Report 2001-31
This data set maps and describes the geology of the Conejo Well 7.5 minute quadrangle, Riverside County, southern California. The quadrangle, situated in Joshua Tree National Park in the eastern Transverse Ranges physiographic and structural province, encompasses part of the northern Eagle Mountains and part of the south flank of...
Borehole geophysical data from Eastland Woolen Mill Superfund site, Corinna, Maine, March 1999
Bruce P. Hansen, William J. Nichols, Robert W. Dudley
2001, Open-File Report 2001-186
Borehole-geophysical data were collected in cooperation with the U.S. Environmental Protection Agency in seven bedrock wells at the Eastland Woolen Mill Superfund site, Penobscot County, Corinna, Maine, in March, 1999. The data were collected as part of a reconnaissance investigation to provide information needed to address concerns about the distribution and fate of contaminants in ground-water at...
Methods to quantify seepage beneath Levee 30, Miami-Dade County, Florida
R.S. Sonenshein
2001, Water-Resources Investigations Report 2001-4074
A two-dimensional, cross-sectional, finite-difference, ground-water flow model and a simple application of Darcy?s law were used to quantify ground-water flow (from a wetlands) beneath Levee 30 in Miami-Dade County, Florida. Geologic and geophysical data, vertical seepage data from the wetlands, canal discharge data, ground-water-level data, and surface-water-stage data collected during...
Preliminary compilation of data for selected oil test wells in Northern California
Earl E. Brabb, Charles L. Powell II, Thomas M. Brocher
2001, Open-File Report 2001-152
Oil test wells can provide information on the depth, age, inclination, porosity, permeability, density, faulting, folding, and organic content of geologic formations mapped at the surface, or on units not recognized in surface outcrops. Formation density, as expressed in sonic and density logs commonly obtained when wells are drilled, has...
Quantification of mine-drainage inflows to Little Cottonwood Creek, Utah, using a tracer-injection and synoptic-sampling study
B. Kimball, R. Runkel, L. Gerner
2001, Environmental Geology (40) 1390-1404
Historic mining in Little Cottonwood Canyon in Utah has left behind many mine drainage tunnels that discharge water to Little Cottonwood Creek. To quantify the major sources of mine drainage to the stream, synoptic sampling was conducted during a tracer injection under low flow conditions (September 1998). There were distinct...
Geology, geochronology, geochemistry, and Pb-isotopic compositions of Proterozoic rocks, Poachie region, west-central Arizona — A study of the east boundary of the Proterozoic Mojave crustal province
Bruce Bryant, J. L. Wooden, L. David Nealey
2001, Professional Paper 1639
The Poachie region at the south edge of the Colorado Plateau transition zone in western Arizona is underlain by early and middle Proterozoic plutonic rocks locally separated by screens of amphibolite-facies early Proterozoic metamorphic rocks and is in the eastern part of the Mojave crustal province, as shown by 35...
African dust causes widespread environmental distress
E.A. Shinn
2001, Open-File Report 2001-246
Socioeconomic and environmental impacts of landslides in the Western Hemisphere
Robert L. Schuster, Lynn M. Highland
2001, Open-File Report 2001-276
In spite of improvements in recognition, prediction, mitigative measures, and warning systems, economic losses and casualties due to landslides in the Western Hemisphere appear to be growing as a result of increasing development of landslide-prone areas due to population pressures. This paper notes outstanding examples of socioeconomic losses in the...
Measuring Taylor Slough boundary and internal flows, Everglades National Park, Florida
G.M. Tillis
2001, Open-File Report 2001-225
Four intensive data-collection efforts, intended to represent the spectrum of precipitation events and associated flow conditions, were conducted during 1997 and 1998 in the Taylor Slough Basin, Everglades National Park. Flow velocities were measured by newly developed, portable Acoustic Doppler Velocity meters along three transects bisecting the Taylor Slough Basin...
Magnesium recycling in the United States in 1998
Deborah A. Kramer
2001, Open-File Report 2001-166
As concern for the environment has grown in recent years, the importance of recycling has become more evident. The more materials that are recycled, the fewer natural resources will be consumed and the fewer waste products will end up in landfills, in the water, and in the air. As one...
Estimation of infiltration rates of saturated soils at selected sites in the Caloosahatchee River basin, southwestern Florida
P. A. Telis
2001, Open-File Report 2001-65
Soil infiltration measurements were made at 23 sites in the Caloosahatchee River Basin in Glades, Hendry, and Lee Counties in southwestern Florida. The sandy soils of the basin are characterized by high infiltration rates limited in some areas by a high water table during the wet season. Because soil characteristics...
Magnetotelluric data across the Battle Mountain-Eureka and Carlin trends, near Battle Mountain, Nevada
Jackie M. Williams, Brian D. Rodriguez, Douglas P. Klein
2001, Open-File Report 2001-228
No abstract available....
Measurement of seafloor radioactivity at the Farallon Islands Radioactive Waste Dump Site, California
D.G. Jones, P. D. Roberts, J. Limburg, Herman A. Karl, J. L. Chin, Wayne C. Shanks, R. Hall, Daniel M. Howard
2001, Open-File Report 2001-62
No abstract available....
Rainfall, Streamflow, and Water-Quality Data During Stormwater Monitoring, Halawa Stream Drainage Basin, Oahu, Hawaii, July 1, 2000 to June 30, 2001
Todd K. Presley
2001, Open-File Report 2001-256
The State of Hawaii Department of Transportation Stormwater Monitoring Program was implemented on January 1, 2001. The program includes the collection of rainfall, streamflow, and water-quality data at selected sites in the Halawa Stream drainage basin. Rainfall and streamflow data were collected from July 1, 2000 to June 30, 2001....
Water-quality data of soil water from three watersheds, Shenandoah National Park, Virginia, 1999-2000
Karen C. Rice, Suzanne W. Maben, James R. Webb
2001, Open-File Report 2001-236
Data on the chemical composition of soil-water samples were collected quarterly from three watersheds in Shenandoah National Park, Virginia, from September 1999 through July 2000. The soil-water samples were analyzed for specific conductance and concentrations of sodium, potassium, calcium, magnesium, ammonium, chloride, nitrate, sulfate, acid-neutralizing capacity, silica, and total monomeric...
Compilation of water-resources data and hydrogeologic setting for Brunswick County, North Carolina, 1933-2000
Jason M. Fine, William L. Cunningham
2001, Open-File Report 2001-240
Water-resources data were compiled for Brunswick County, North Carolina, to describe the hydrologic conditions of the County. Hydrologic data collected by the U.S. Geological Survey as well as data collected by other governmental agencies and reviewed by the U.S. Geological Survey are presented. Data from four weather stations and two...
MODFLOW-2000, the U. S. Geological Survey modular ground-water model; user guide to the Link-AMG (LMG) package for solving matrix equations using an algebraic multigrid solver
S.W. Mehl, M. C. Hill
2001, Open-File Report 2001-177
The Kiowa core, a continuous drill core through the Denver Basin bedrock aquifers at Kiowa, Elbert County, Colorado
Robert G.H. Raynolds, Kirk R. Johnson, L. Rick Arnold, Timothy M. Farnham, R. Farley Fleming, Jason F. Hicks, Shari A. Kelley, Laura A. Lapey, Douglas J. Nichols, John D. Obradovich, Michael D. Wilson
2001, Open-File Report 2001-185
The Kiowa core was obtained as a component of the Denver Basin Project, a cooperative research effort to study the evolution of the Denver Basin, Colorado. The Kiowa core provides a virtually continuous stratigraphic record of the Upper Cretaceous and lower Tertiary strata of the Denver Basin. The upper portion...
Methods of analysis by the U.S. Geological Survey Organic Geochemistry Research Group--Update and additions to the determination of chloroacetanilide herbicide degradation compounds in water using high-performance liquid chromatography/mass spectrometry
E.A. Lee, J.L. Kish, L.R. Zimmerman, E. Thurman
2001, Open-File Report 2001-10
An analytical method using high-performance liquid chromatography/mass spectrometry (HPLC/MS) was developed by the U.S. Geological Survey in 1999 for the analysis of selected chloroacetanilide herbicide degradation compounds in water. These compounds were acetochlor ethane sulfonic acid (ESA), acetochlor oxanilic acid (OXA), alachlor ESA, alachlor OXA, metolachlor ESA, and metolachlor OXA....
High-resolution seismic imaging for environmental and earthquake hazards assessment at the Raychem site, Menlo Park, California
Rufus Douglas Catchings, Elba Horta, Mark R. Goldman, Michael J. Rymer, Thomas R. Burdette
2001, Open-File Report 98-146
The evolution of the lower Missouri River; a discussion of the geology and a proposal for research at Lisbon Bottom
Jeffrey Spooner
2001, Open-File Report 2001-176
Methods and computer programs to improve pathline resolution near weak sinks representing wells in MODFLOW and MODPATH ground-water-flow simulations
Frederick J. Spitz
2001, Open-File Report 2000-392
Methods of analysis by the U. S. Geological Survey National Water Quality Laboratory-Determination of organic plus inorganic mercury in filtered and unfiltered natural water with cold vapor; atomic fluorescence spectrometry
John R. Garbarino, Donna L. Damrau
2001, Water-Resources Investigations Report 2001-4132
An analytical method using cold vapor-atomic fluorescence spectrometry was developed by the U.S. Geological Survey in 2001 for the determination of organic plus inorganic mercury in filtered and unfiltered natural water. This method was developed to eliminate the use of acid dichromate preservative and to provide capability to measure ambient...
Tampa Bay integrated science pilot project
Lisa L. Robbins, Kimberly K. Yates
2001, Open-File Report 2001-243
