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Publication Extents

Not all publications have extents, not all extents are completely accurate
Pesticides and their breakdown products in Lake Waxahachie, Texas, and in finished drinking water from the lake
Patricia B. Ging
2002, Fact Sheet 032-02
Since 1991, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Program has collected pesticide data from streams and aquifers throughout the Nation (Gilliom and others, 1995). However, little published information on pesticides in public drinking water is available. The NAWQA Program usually collects data on the sources of drinking...
Publications of Western Earth Surface Processes Team 2001
II Charles Powell Charles,(compiler), R. W. Graymer
2002, Open-File Report 2002-269
The Western Earth Surface Processes Team (WESPT) of the U.S. Geological Survey (USGS) conducts geologic mapping and related topical earth-science studies in the Western United States. This work is focused on areas where modern geologic maps and associated earth-science data are needed to address key societal and environmental issues, such...
Geological map of the Kaiwan Fluctus Quadrangle (V-44), Venus
Nathan T. Bridges, George E. McGill
2002, IMAP 2747
Introduction The Magellan spacecraft orbited Venus from August 10, 1990, until it plunged into the Venusian atmosphereon October 12, 1994. Magellan had the objectives of: (1) improving knowledge of the geologic processes, surface properties, and geologic history of Venus by analysis of surface radar characteristics, topography, and morphology and (2) improving...
Selected elements and organic chemicals in streambed sediment in the Salem area, Oregon, 1999
Dwight Q. Tanner
2002, Water-Resources Investigations Report 2002-4194
Analysis of streambed sediments in the Salem, Oregon, area showed anomalously large concentrations of some elements and organic chemicals, indicating contamination from anthropogenic and/or geologic sources. The streambed sediment sample from Clark Creek, an urban basin, had large concentrations of polycyclic aromatic hyrdocarbons (PAHs), organochlorines, cadmium, lead, and zinc. The...
Map Showing Seacliff Response to Climatic and Seismic Events, Seacliff State Beach, Santa Cruz County, California
Cheryl J. Hapke, Bruce M. Richmond, Mimi M. D’Iorio
2002, Miscellaneous Field Studies Map 2399
INTRODUCTION The coastal cliffs along much of the central California coast are actively retreating. Large storms and periodic earthquakes are responsible for most of the documented seacliff slope failures. Long-term average erosion rates calculated for this section of coast (Moore and others, 1999) do not provide the spatial or temporal data...
A portal for the ocean biogeographic information system
Yun Zhang, J. F. Grassle
2002, Oceanologica Acta (25) 193-197
Since its inception in 1999 the Ocean Biogeographic Information System (OBIS) has developed into an international science program as well as a globally distributed network of biogeographic databases. An OBIS portal at Rutgers University provides the links and functional interoperability among member database systems. Protocols and standards have been established...
Vitrinite reflectance data for the Greater Green River basin, southwestern Wyoming, northwestern Colorado, and northeastern Utah
Mark J. Pawlewicz, Thomas M. Finn
2002, Open-File Report 2002-339
The Greater Green River Basin is a large Laramide (Late Cretaceous through Eocene) structural and sedimentary basin that encompasses about 25,000 square miles in southwestern Wyoming, northwestern Colorado, and northeastern Utah (fig. 1). Important conventional oil and gas resources have been discovered and produced from reservoirs ranging in age from...
Effects of stress from mine drainage on diversity, biomass, and function of primary producers in mountain streams
Dev K. Niyogi, William M. Lewis Jr., Diane M. McKnight
2002, Ecosystems (5) 554-567
This paper proposes a hypothesis that relates biodi- versity, community biomass, and ecosystem func- tion to a gradient of stress. According to this hy- pothesis, biodiversity has a low threshold of response to stress, whereas biomass and function are stable or increase under low to moderate stress and decrease...
Map Showing Seacliff Response to Climatic and Seismic Events, Seabright Beach, Santa Cruz County, California
Cheryl J. Hapke, Bruce M. Richmond, Mimi M. D’Iorio
2002, Miscellaneous Field Studies Map 2400
Introduction The coastal cliffs along much of the central California coast are actively retreating. Large storms and periodic earthquakes are responsible for most of the documented sea cliff slope failures. Long-term average erosion rates calculated for this section of coast do not provide the spatial or temporal data resolution necessary to...
Simulation of flow and water quality of the Arroyo Colorado, Texas, 1989-99
Timothy H. Raines, Roger M. Miranda
2002, Water-Resources Investigations Report 2002-4110
A model parameter set for use with the Hydrological Simulation Program—FORTRAN watershed model was developed to simulate flow and water quality for selected properties and constituents for the Arroyo Colorado from the city of Mission to the Laguna Madre, Texas. The model simulates flow, selected water-quality properties, and constituent concentrations....
Ground-water quality and effects of poultry confined animal feeding operations on shallow ground water, upper Shoal Creek basin, Southwest Missouri, 2000
Douglas N. Mugel
2002, Water-Resources Investigations Report 2002-4125
Forty-seven wells and 8 springs were sampled in May, October, and November 2000 in the upper Shoal Creek Basin, southwest Missouri, to determine if nutrient concentrations and fecal bacteria densities are increasing in the shallow aquifer as a result of poultry confined animal feeding operations (CAFOs). Most of the land use in...
Ground-water monitoring plan, water quality, and variability of agricultural chemicals in the Missouri River alluvial aquifer near the City of Independence, Missouri, well field, 1998-2000
Brian P. Kelly
2002, Water-Resources Investigations Report 2002-4096
A detailed ground-water sampling plan was developed and executed for 64 monitoring wells in the city of Independence well field to characterize ground-water quality in the 10-year zone of contribution. Samples were collected from monitoring wells, combined Independence well field pumpage, and the Missouri River at St. Joseph, Missouri, from...
Assessments of aquifer sensitivity on Navajo Nation and adjacent lands and ground-water vulnerability to pesticide contamination on the Navajo Indian Irrigation Project, Arizona, New Mexico, and Utah
Paul J. Blanchard
2002, Water-Resources Investigations Report 2002-4051
The U.S. Environmental Protection Agency requested that the Navajo Nation conduct an assessment of aquifer sensitivity on Navajo Nation lands and an assessment of ground-water vulnerability to pesticide contamination on the Navajo Indian Irrigation Project. Navajo Nation lands include about 17,000 square miles in northeastern Arizona, northwestern New Mexico, and...
Effects of highway-deicer application on ground-water quality in a part of the Calumet Aquifer, northwestern Indiana
Lee R. Watson, E. Randall Bayless, Paul M. Buszka, John T. Wilson
2002, Water-Resources Investigations Report 2001–4260
The effects of highway-deicer application on ground-water quality were studied at a site in northwestern Indiana using a variety of geochemical indicators. Site characteristics such as high snowfall rates; large quantities of applied deicers; presence of a high-traffic highway; a homogeneous, permeable, and unconfined aquifer; a shallow water table; a...
Spatial data available on the web at http://mrdata.usgs.gov/
Bruce Johnson
2002, Fact Sheet 071-02
Earth science information is important to decisionmakers who formulate public policy related to mineral resource sustainability, land stewardship, environmental hazards, the economy, and public health. To meet the growing demand for easily accessible data, the Mineral Resources Program has developed, in cooperation with other Federal and State agencies, an Internet-based,...
User's guide to SEAWAT; a computer program for simulation of three-dimensional variable-density ground-water flow
Weixing Guo, C.D. Langevin
2002, Techniques of Water-Resources Investigations 06-A7
This report documents a computer program (SEAWAT) that simulates variable-density, transient, ground-water flow in three dimensions. The source code for SEAWAT was developed by combining MODFLOW and MT3DMS into a single program that solves the coupled flow and solute-transport equations. The SEAWAT code follows a modular structure, and thus, new...
Epigenetic lead, zinc, silver, antimony, tin, and gold veins in Boulder Basin, Blaine and Custer Counties, Idaho: Potential for economic tin mineralization
Michael E. Ratchford
2002, Bulletin 2064-JJ
Boulder Basin is in a northwest-trending belt of allochthonous Paleozoic rocks in the Boulder Mountains of central Idaho. Regional Tertiary extension resulted in widespread normal faulting and coeval emplacement of shallow-level intrusions and extrusive rocks of the Challis Volcanic Group. Epigenetic lead-zinc-silver-antimony-tin-gold vein deposits formed during Tertiary extension and are...
Comparison of vapor concentrations of volatile organic compounds with ground-water concentrations of selected contaminants in sediments beneath the Sudbury River, Ashland, Massachusetts, 2000
J.P. Campbell, F. P. Lyford, Richard E. Willey
2002, Open-File Report 2002-143
A mixed plume of contaminants in ground water, including volatile organic compounds (VOCs), semi-volatile organic compounds (SVOCs), and metals, near the former Nyanza property in Ashland, Massachusetts, discharges to the Sudbury River upstream and downstream of Mill Pond and a former mill raceway. Polyethylene-membrane vapor-diffusion (PVD) samplers were installed in...