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Page 2168, results 54176 - 54200

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Not all publications have extents, not all extents are completely accurate
Quality of Shallow Ground Water in Three Areas of Unsewered Low-Density Development in Wyoming and Montana, 2001
Timothy T. Bartos, Thomas L. Quinn, Laura L. Hallberg, Cheryl A. Eddy-Miller
2008, Scientific Investigations Report 2008-5012
The quality of shallow ground water underlying unsewered low-density development outside of Sheridan and Lander, Wyo., and Red Lodge, Mont., was evaluated. In 2001, 29 wells (10 each in Sheridan and Lander and 9 in Red Lodge) were installed at or near the water table and sampled for a wide...
Analysis of Pulsed Flow Modification Alternatives, Lower Missouri River, 2005
Robert B. Jacobson
2008, Open-File Report 2008-1113
The graphical, tabular, and statistical data presented in this report resulted from analysis of alternative flow regime designs considered by a group of Missouri River managers, stakeholders, and scientists during the summer of 2005. This plenary group was charged with designing a flow regime with increased spring flow pulses to...
Methods for and estimates of 2003 and projected water use in the Seacoast Region, Southeastern New Hampshire
Marilee A. Horn, Richard B. Moore, Laura Hayes, Sarah M. Flanagan
2008, Scientific Investigations Report 2007-5157
New methods were developed to estimate water use in 2003 and future water demand in 2017 and 2025 in the Seacoast region in southeastern New Hampshire, which has experienced a 37-percent population increase during 1980 to 2000. Water-use activities for which estimates were developed include water withdrawal, delivery, demand, consumptive...
Methods for Monitoring Fish Communities of Buffalo National River and Ozark National Scenic Riverways in the Ozark Plateaus of Arkansas and Missouri: Version 1.0
James C. Petersen, B. G. Justus, H.R. Dodd, D.E. Bowles, L.W. Morrison, M.H. Williams, G.A. Rowell
2008, Open-File Report 2007-1302
Buffalo National River located in north-central Arkansas, and Ozark National Scenic Riverways, located in southeastern Missouri, are the two largest units of the National Park Service in the Ozark Plateaus physiographic province. The purpose of this report is to provide a protocol that will be used by the National Park...
Titan's rotation reveals an internal ocean and changing zonal winds
Ralph D. Lorenz, Bryan W. Stiles, Randolph L. Kirk, Michael D. Allison, Paolo Persi del Marmo, Luciano Iess, Jonathan I. Lunine, Steven J. Ostro, Scott Hensley
2008, Science (319) 1649-1651
Cassini radar observations of Saturn's moon Titan over several years show that its rotational period is changing and is different from its orbital period. The present-day rotation period difference from synchronous spin leads to a shift of ∼0.36° per year in apparent longitude and is consistent with seasonal exchange of...
Development of acid functional groups and lactones during the thermal degradation of wood and wood components
David W. Rutherford, Robert L. Wershaw, James B. Reeves III
2008, Scientific Investigations Report 2007-5013
Black carbon (pyrogenic materials including chars) in soils has been recognized as a substantial portion of soil organic matter, and has been shown to play a vital role in nutrient cycling; however, little is known concerning the properties of this material. Previous studies have largely been concerned with the creation...
Pesticide Occurrence and Distribution in the Lower Clackamas River Basin, Oregon, 2000-2005
Kurt D. Carpenter, Steven Sobieszczyk, Andrew J. Arnsberg, Frank A. Rinella
2008, Scientific Investigations Report 2008-5027
Pesticide occurrence and distribution in the lower Clackamas River basin was evaluated in 2000?2005, when 119 water samples were analyzed for a suite of 86?198 dissolved pesticides. Sampling included the lower-basin tributaries and the Clackamas River mainstem, along with paired samples of pre- and post-treatment drinking water (source and finished...
Water-quality data for water- and wastewater-treatment plants along the Red River of the North, North Dakota and Minnesota, January through October 2006
William C. Damschen, John A. Hansel, Rochelle A. Nustad
2008, Data Series 328
From January through October 2006, six sets of water-quality samples were collected at 28 sites, which included inflow and outflow from seven major municipal water-treatment plants (14 sites) and influent and effluent samples from seven major municipal wastewater treatment plants (14 sites) along the Red River of the North in...
PIT Tagging Anurans
Brome McCreary
2008, Open-File Report 2007-1354
This report is no longer available....
Water-Level Changes in Aquifers of the Atlantic Coastal Plain, Predevelopment to 2000
Vincent T. dePaul, Donald E. Rice, Otto S. Zapecza
2008, Scientific Investigations Report 2007-5247
The Atlantic Coastal Plain aquifer system, which underlies a large part of the east coast of the United States, is an important source of water for more than 20 million people. As the population of the region increases, further demand is being placed on those ground-water resources. To define areas...
Geomorphic characterization of the Middle Fork Saline River: Garland, Perry, and Saline Counties, Arkansas
Aaron L. Pugh, Thomas J. Garday, Ronald Redman
2008, Scientific Investigations Report 2007-5152
This report was prepared to help address concerns raised by local residents, State, and Federal agencies about the current geomorphic conditions of the Middle Fork Saline River. Over the past 30 years the Middle Fork Saline River Basin has experienced a marked increase in urbanization. The report summarizes the Middle...
An Overview of the GIS Weasel
Roland J. Viger
2008, Fact Sheet 2008-3004
This fact sheet provides a high-level description of the GIS Weasel, a software system designed to aid users in preparing spatial information as input to lumped and distributed parameter environmental simulation models (ESMs). The GIS Weasel provides geographic information system (GIS) tools to help create maps of geographic features relevant...
Hydrology Prior to Wetland and Prairie Restoration in and around the Glacial Ridge National Wildlife Refuge, Northwestern Minnesota, 2002-5
Timothy K. Cowdery, David L. Lorenz, Allan D. Arntson
2008, Scientific Investigations Report 2007-5200
The Nature Conservancy (TNC) owned and managed 24,795 acres of mixed wetland, native prairie, farmland and woods east of Crookston, in northwestern Minnesota. The original wetlands and prairies that once occupied this land are being restored by TNC in cooperation with many partners and are becoming part of the Glacial...
Inventory of Well Yields in Avery and Watauga Counties, North Carolina
Brad A. Huffman, Melinda J. Chapman, Kirsten C. Tighe, Silvia Terziotti
2008, Open-File Report 2008-1104
More than 1,500 well records were compiled for Avery and Watauga Counties, North Carolina, as part of a study of ground-water resources. Wells in this area of the Blue Ridge Physiographic Province produce water from the fractured-bedrock aquifer. Prior to this study, only about 132 wells were included in the...
Determination of polychlorinated biphenyls, selected persistent organochlorine pesticides, and polybrominated flame retardants in fillets of fishes from the 2006 Missouri Department of Conservation Monitoring Programs
Robert W. Gale, Thomas W. May, Carl E. Orazio, Michael J. McKee
2008, Open-File Report 2008-1028
This report presents the results of a study to determine polychlorinated biphenyl, organochlorine pesticide, and polybrominated diphenyl ether flame retardant concentrations in selected fishes from lakes and streams across Missouri. Fillets were collected from each fish sample, and after homogenization, compositing, and preparation, analyte concentrations were determined with dual column...
Factors Affecting Nitrate Delivery to Streams from Shallow Ground Water in the North Carolina Coastal Plain
Stephen L. Harden, Timothy B. Spruill
2008, Scientific Investigations Report 2008-5021
An analysis of data collected at five flow-path study sites between 1997 and 2006 was performed to identify the factors needed to formulate a comprehensive program, with a focus on nitrogen, for protecting ground water and surface water in the North Carolina Coastal Plain. Water-quality protection in the Coastal Plain...
Concentration and spatial distribution of selected constituents in Detroit River bed sediment adjacent to Grassy Island, Michigan, August 2006
C. J. Hoard
2008, Open-File Report 2008-1016
In August 2006, the U.S. Geological Survey, in cooperation with the U.S. Fish and Wildlife Service, collected sediment?core samples from the bed of the Detroit River adjacent to Grassy Island. The goal of the sampling was to assess the distribution and concentration of chemical constituents in sediment adjacent to Grassy...
Clear-Water Contraction Scour at Selected Bridge Sites in the Black Prairie Belt of the Coastal Plain in Alabama, 2006
K.G. Lee, T.S. Hedgecock
2008, Scientific Investigations Report 2007-5260
The U.S. Geological Survey, in cooperation with the Alabama Department of Transportation, made observations of clear-water contraction scour at 25 bridge sites in the Black Prairie Belt of the Coastal Plain of Alabama. These bridge sites consisted of 54 hydraulic structures, of which 37 have measurable scour holes. Observed scour...
Reported Historic Asbestos Mines, Historic Asbestos Prospects, and Natural Asbestos Occurrences in the Southwestern United States (Arizona, Nevada, and Utah)
Bradley S. Van Gosen
2008, Open-File Report 2008-1095
This map and its accompanying dataset provide information for 113 natural asbestos occurrences in the Southwestern United States (U.S.), using descriptions found in the geologic literature. Data on location, mineralogy, geology, and relevant literature for each asbestos site are provided. Using the map and digital data in this report, the...
Estimating the Probability of Elevated Nitrate Concentrations in Ground Water in Washington State
Lonna M. Frans
2008, Scientific Investigations Report 2008-5025
Logistic regression was used to relate anthropogenic (manmade) and natural variables to the occurrence of elevated nitrate concentrations in ground water in Washington State. Variables that were analyzed included well depth, ground-water recharge rate, precipitation, population density, fertilizer application amounts, soil characteristics, hydrogeomorphic regions, and land-use types. Two models were...
Fast, Inclusive Searches for Geographic Names Using Digraphs
David I. Donato
2008, Techniques and Methods 7-A1
An algorithm specifies how to quickly identify names that approximately match any specified name when searching a list or database of geographic names. Based on comparisons of the digraphs (ordered letter pairs) contained in geographic names, this algorithmic technique identifies approximately matching names by applying an artificial but useful measure...
SEAWAT Version 4: A Computer Program for Simulation of Multi-Species Solute and Heat Transport
Christian D. Langevin, Daniel T. Thorne Jr., Alyssa M. Dausman, Michael C. Sukop, Weixing Guo
2008, Techniques and Methods 6-A22
The SEAWAT program is a coupled version of MODFLOW and MT3DMS designed to simulate three-dimensional, variable-density, saturated ground-water flow. Flexible equations were added to the program to allow fluid density to be calculated as a function of one or more MT3DMS species. Fluid density may also be calculated as a...
Ground-Water Quality in the Mohawk River Basin, New York, 2006
Elizabeth A. Nystrom
2008, Open-File Report 2008-1086
Water samples were collected from 27 wells from August through November 2006 to characterize ground-water quality in the Mohawk River Basin. The Mohawk River Basin covers 3,500 square miles in central New York; most of the basin is underlain by sedimentary bedrock, including shale, sandstone, and carbonates. Sand and gravel...
NetpathXL - An excel interface to the program NETPATH
David L. Parkhurst, Scott R. Charlton
2008, Techniques and Methods 6-A26
NetpathXL is a revised version of NETPATH that runs under Windows? operating systems. NETPATH is a computer program that uses inverse geochemical modeling techniques to calculate net geochemical reactions that can account for changes in water composition between initial and final evolutionary waters in hydrologic systems. The inverse models also...
Guide to the Revised Ground-Water Flow and Heat Transport Simulator: HYDROTHERM - Version 3
Kenneth L. Kipp, Paul A. Hsieh, Scott R. Charlton
2008, Techniques and Methods 6-A25
The HYDROTHERM computer program simulates multi-phase ground-water flow and associated thermal energy transport in three dimensions. It can handle high fluid pressures, up to 1 ? 109 pascals (104 atmospheres), and high temperatures, up to 1,200 degrees Celsius. This report documents the release of Version 3, which includes various additions,...