Use of Numerical Models to Simulate Transport of Sewage-Derived Nitrate in a Coastal Aquifer, Central and Western Cape Cod, Massachusetts
Donald A. Walter
2008, Scientific Investigations Report 2007-5259
The unconsolidated glacial sediments underlying Cape Cod, Massachusetts compose a regional aquifer system that is used both as a source of drinking water and as a disposal site for wastewater; in addition, the discharge of clean ground water from the aquifer system is needed for the maintenance of freshwater and...
Framework for Evaluating Water Quality of the New England Crystalline Rock Aquifers
Philip T. Harte, Gilpin R. Robinson Jr., Joseph D. Ayotte, Sarah M. Flanagan
2008, Open-File Report 2008-1282
Little information exists on regional ground-water-quality patterns for the New England crystalline rock aquifers (NECRA). A systematic approach to facilitate regional evaluation is needed for several reasons. First, the NECRA are vulnerable to anthropogenic and natural contaminants such as methyl tert-butyl ether (MTBE), arsenic, and radon gas. Second, the physical...
Chemical data for precipitate samples
Andrea L. Foster, Randolph A. Koski
2008, Open-File Report 2007-1359-E
During studies of sulfide oxidation in coastal areas of Prince William Sound in 2005, precipitate samples were collected from onshore and intertidal locations near the Ellamar, Threeman, and Beatson mine sites (chapter A, fig. 1; table 7). The precipitates include jarosite and amorphous Fe oxyhydroxide from Ellamar, amorphous Fe oxyhydroxide...
Simulated Effects of Year 2030 Water-Use and Land-Use Changes on Streamflow near the Interstate-495 Corridor, Assabet and Upper Charles River Basins, Eastern Massachusetts
Carl S. Carlson, Leslie A. DeSimone, Peter K. Weiskel
2008, Scientific Investigations Report 2008-5132
Continued population growth and land development for commercial, industrial, and residential uses have created concerns regarding the future supply of potable water and the quantity of ground water discharging to streams in the area of Interstate 495 in eastern Massachusetts. Two ground-water models developed in 2002-2004 for the Assabet and...
Ground-Water Flow in the Vicinity of the Ho-Chunk Nation Communities of Indian Mission and Sand Pillow, Jackson County, Wisconsin
Charles P. Dunning, Gregory D. Mueller, Paul F. Juckem
2008, Scientific Investigations Report 2008-5121
An analytic element ground-water-flow model was constructed to help understand the ground-water-flow system in the vicinity of the Ho-Chunk Nation communities of Indian Mission and Sand Pillow in Jackson County, Wisconsin. Data from interpretive reports, well-drillers' construction reports, and an exploratory augering program in 2003 indicate that sand and gravel...
Occurrence, Distribution, Sources, and Trends of Elevated Chloride Concentrations in the Mississippi River Valley Alluvial Aquifer in Southeastern Arkansas
Timothy M. Kresse, Brian R. Clark
2008, Scientific Investigations Report 2008-5193
Water-quality data from approximately 2,500 sites were used to investigate the distribution of chloride concentrations in the Mississippi River Valley alluvial aquifer in southeastern Arkansas. The large volume and areal distribution of the data used for the investigation proved useful in delineating areas of elevated (greater than 100 milligrams per...
Flood plain delineation for the Fremont River and Bull Creek, Hanksville, Utah
Terry A. Kenney, Susan G. Buto
2008, Scientific Investigations Report 2008-5233
Predicted inundation maps for the Fremont River and Bull Creek in Hanksville, Utah, were developed using one-dimensional hydraulic models. Estimates of the 1-percent chance (100-year) peak streamflows were determined for the Fremont River and Bull Creek study reaches by using annual peak series data from streamflow-gaging stations and regional peak-flow...
Methods for estimating monthly and annual streamflow statistics at ungaged sites in Utah
Chris D. Wilkowske, Terry A. Kenney, Shane J. Wright
2008, Scientific Investigations Report 2008-5230
The monthly 80-, 50-, and 20-percent exceedance streamflows were calculated for 266 streamflow-gaging stations in Utah and the surrounding states. Using geographic information systems software, 24 physiographic and climatic basin characteristics were computed for each gaging station location. Using these data, regional regression equations were created to predict monthly 80-,...
Methods and Indicators for Assessment of Regional Ground-Water Conditions in the Southwestern United States
Fred D. Tillman, Stanley A. Leake, Marilyn E. Flynn, Jeffrey T. Cordova, Kurt T. Schonauer, Jesse E. Dickinson
2008, Scientific Investigations Report 2008-5209
Monitoring the status and trends in the availability of the Nation's ground-water supplies is important to scientists, planners, water managers, and the general public. This is especially true in the semiarid to arid southwestern United States where rapid population growth and limited surface-water resources have led to increased use of...
Geologic Maps and Cross Sections of the Tuba City Open Dump Site and Vicinity, With Implications for the Occurrence and Flow of Ground Water
James K. Otton, Ray H. Johnson, Robert Horton
2008, Open-File Report 2008-1380
This report is designed to make available to interested parties geologic and limited hydrologic and geochemical information about the Tuba City Open Dump (TCOD) site. This information has been gathered during studies of the site from January to September 2008. Mapping by the authors and construction of cross sections show...
Hydrologic investigations concerning lead mining issues in southeastern Missouri
Cheryl M. Seeger, Michael J. Kleeschulte, Lopaka Lee, Gary W. Krizanich, Suzanne R. Femmer, John G. Schumacher
Michael J. Kleeschulte, editor(s)
2008, Scientific Investigations Report 2008-5140
Good stewardship of our Nation's natural resources demands that the extraction of exploitable, minable ore deposits be conducted in harmony with the protection of the environment, a dilemma faced by many land and water management agencies in the Nation's mining areas. As ore is mined, milled, and sent to the...
Potentiometric surface of the upper and lower aquifers of the North Coast Limestone aquifer system and hydrologic conditions in the Arecibo-Manatí area, Puerto Rico, November 27-December 1, 2006
Jose M. Rodriguez, Fernando Gómez-Gómez
2008, Scientific Investigations Map 3030
A ground-water level synoptic survey of the limestone aquifer in the Arecibo to Manati area, Puerto Rico, was conducted from November 27 through December 1, 2006 by the U.S. Geological Survey in cooperation with the Puerto Rico Department of Natural and Environmental Resources. The purpose of the study was to...
Historical Ground-Water Development in the Salinas Alluvial Fan Area, Salinas, Puerto Rico, 1900-2005
Jose M. Rodriguez, Fernando Gómez-Gómez
2008, Scientific Investigations Map 3032
The Salinas alluvial fan area has historically been one of the most intensively used agricultural areas in the South Coastal Plain of Puerto Rico. Changes in agricultural practices and land use in the Salinas alluvial fan have also caused changes in the geographic distribution of ground-water withdrawals from the alluvial...
Ground-water, surface-water, and water-chemistry data, Black Mesa area, northeastern Arizona— 2006-07
Margot Truini, J. P. Macy
2008, Open-File Report 2008-1324
The N aquifer is the major source of water in the 5,400 square-mile Black Mesa area in northeastern Arizona. Availability of water is an important issue in northeastern Arizona because of continued water requirements for industrial and municipal use and the needs of a growing population. Precipitation in the Black...
Evaluation of floodplain modifications to reduce the effect of floods using a two-dimensional hydrodynamic model of the Flint River at Albany, Georgia
Jonathan W. Musser
2008, Scientific Investigations Report 2008-5223
Potential flow characteristics of future flooding along a 4.8-mile reach of the Flint River in Albany, Georgia, were simulated using recent digital-elevation-model data and the U.S. Geological Survey finite-element surface-water modeling system for two-dimensional flow in the horizontal plane (FESWMS-2DH). The model was run at four water-surface altitudes at the...
Monitoring Inland Storm Surge and Flooding From Hurricane Gustav in Louisiana, September 2008
Benton D. McGee, Burl B. Goree, Roland W. Tollett, Mason Jr.
2008, Open-File Report 2008-1373
On August 29-31, 2008, the U.S. Geological Survey (USGS) deployed a mobile monitoring network consisting of 124 pressure transducers (sensors) (figs. 1, 2) at 80 sites over an area of about 4,200 square miles to record the timing, extent, and magnitude of inland hurricane storm surge and coastal flooding generated...
Davis Pond freshwater prediversion biomonitoring study: freshwater fisheries and eagles
Jill A. Jenkins, E. Beth Bourgeois, Clint W. Jeske
2008, Scientific Investigations Report 2008-5067
In January 2001, the construction of the Davis Pond freshwater diversion structure was completed by the U.S. Army Corps of Engineers. The diversion of freshwater from the Mississippi River is intended to mitigate saltwater intrusion from the Gulf of Mexico and to lessen the concomitant loss of wetland areas. In...
Alkylphenols, other endocrine-active chemicals, and fish responses in three streams in Minnesota — Study design and data, February-September 2007
Kathy Lee, Heiko L. Schoenfuss, Nathan D. Jahns, Greg K. Brown, Larry B. Barber
2008, Data Series 405
This report presents the study design and environmental data for an integrated chemical and biological study of three streams (South Fork Crow River, Redwood River, and Grindstone River) that receive wastewater in Minnesota. The objective of the study was to identify distribution patterns of endocrine-active chemicals and other organic chemicals...
User Guide and Documentation for Five MODFLOW Ground-Water Modeling Utility Programs
Edward R. Banta, Suzanne S. Paschke, David W. Litke
2008, Techniques and Methods 6-A28
This report documents five utility programs designed for use in conjunction with ground-water flow models developed with the U.S. Geological Survey's MODFLOW ground-water modeling program. One program extracts calculated flow values from one model for use as input to another model. The other four programs extract model input or output...
Recharge to Shale Bedrock at Averill Park, an Upland Hamlet in Eastern New York - An Estimate Based on Pumpage within a Defined Cone of Depression
Allan D. Randall, Anne Finch
2008, Scientific Investigations Report 2008-5087
Water levels beneath parts of Averill Park, a residential hamlet in an upland area of till-mantled shale bedrock in east-central New York, have declined in response to increased withdrawals from new wells. Similar experiences in many upland localities in the northeastern United States have resulted in awareness that the rate...
Natural and Human Influences on Water Quality in a Shallow Regional Unconsolidated Aquifer, Northern Atlantic Coastal Plain
Scott W. Ator
2008, Scientific Investigations Report 2008-5190
Data collected from more than 400 wells in the surficial unconfined aquifer in the Northern Atlantic Coastal Plain (New York through North Carolina) were compiled and analyzed to improve understanding of multiple natural and human influences on water quality in such shallow regional aquifers. Geochemical patterns were identified and described...
Preliminary geologic map of the southern Funeral Mountains and adjacent ground-water discharge sites, Inyo County, California, and Nye County, Nevada
Christopher J. Fridrich, Ren A. Thompson, Janet L. Slate, M. E. Berry, Michael N. Machette
2008, Open-File Report 2008-1366
This map covers the southern part of the Funeral Mountains, and adjacent parts of four structural basins - Furnace Creek, Amargosa Valley, Opera House, and central Death Valley. It extends over three full 7.5-minute quadrangles, and parts of eleven others - a total area of about 950 square kilometers. The...
Simulation of ground-water flow in the Shenandoah Valley, Virginia and West Virginia, using variable-direction anisotropy in hydraulic conductivity to represent bedrock structure
Richard M. Yager, Scott C. Southworth, Clifford I. Voss
2008, Scientific Investigations Report 2008-5002
Ground-water flow was simulated using variable-direction anisotropy in hydraulic conductivity to represent the folded, fractured sedimentary rocks that underlie the Shenandoah Valley in Virginia and West Virginia. The anisotropy is a consequence of the orientations of fractures that provide preferential flow paths through the rock, such that the direction of...
Relations of Water Quality to Agricultural Chemical Use and Environmental Setting at Various Scales - Results from Selected Studies of the National Water-Quality Assessment Program
Water Resources Division, U.S. Geological Survey
2008, Fact Sheet 2007-3088
In 1991, the U.S. Geological Survey (USGS) began studies of 51 major river basins and aquifers across the United States as part of the National Water-Quality Assessment (NAWQA) Program to provide scientifically sound information for managing the Nation's water resources. The major goals of the NAWQA Program are to assess...
Design and Operation of a Borehole Straddle Packer for Ground-Water Sampling and Hydraulic Testing of Discrete Intervals at U.S. Air Force Plant 6, Marietta, Georgia
Owen G. Holloway, Jonathan P. Waddell
2008, Open-File Report 2008-1349
A borehole straddle packer was developed and tested by the U.S. Geological Survey to characterize the vertical distribution of contaminants, head, and hydraulic properties in open-borehole wells as part of an ongoing investigation of ground-water contamination at U.S. Air Force Plant 6 (AFP6) in Marietta, Georgia. To better understand contaminant...
