Ground-water flow paths and traveltime to three small embayments within the Peconic Estuary, eastern Suffolk County, New York
Christopher Schubert
1999, Water-Resources Investigations Report 98-4181
The Peconic Estuary, at the eastern end of Long Island, has been plagued by a recurrent algal bloom that has caused the severe decline of local marine resources. Although the onset, duration, and cessation of the bloom remain unpredictable, ground-water discharge has been shown to affect surface-water quality in the...
Volcanogenic Sulfur on Earth and Io: Composition and Spectroscopy
J.S. Kargel, P. Delmelle, D.B. Nash
1999, Icarus (142) 249-280
The causes of Io's variegated surface, especially the roles of sulfur, and the geochemical history of sulfur compounds on Io are not well understood. Suspecting that minor impurities in sulfur might be important, we have investigated the major and trace element chemistry and spectroscopic reflectance of natural sulfur from a...
Complex effusive events at Kilauea as documented by the GOES satellite and remote video cameras
A.J.L. Harris, C.R. Thornber
1999, Bulletin of Volcanology (61) 382-395
GOES provides thermal data for all of the Hawaiian volcanoes once every 15 min. We show how volcanic radiance time series produced from this data stream can be used as a simple measure of effusive activity. Two types of radiance trends in these time series can be used to monitor...
The effect of temperature on experimental and natural chemical weathering rates of granitoid rocks
A. F. White, A.E. Blum, T.D. Bullen, D.V. Vivit, M. Schulz, J. Fitzpatrick
1999, Geochimica et Cosmochimica Acta (63) 3277-3291
The effects of climatic temperature variations (5-35??C) on chemical weathering are investigated both experimentally using flow-through columns containing fresh and weathered granitoid rocks and for natural granitoid weathering in watersheds based on annual solute discharge. Although experimental Na and Si effluent concentrations are significantly higher in the fresh relative to...
Carboniferous and older carbonate rocks: Lithofacies, extent, and reservoir quality: Chapter CC in The oil and gas resource potential of the Arctic National Wildlife Refuge 1002 area, Alaska
Julie A. Dumoulin
1999, Open-File Report 98-34-CC
Carboniferous and older carbonate rocks are potential hydrocarbon reservoir facies for four plays in the 1002 area of the Arctic National Wildlife Refuge. These rocks include several units in the pre-Carboniferous basement and the Carboniferous Lisburne Group. Data from exploratory wells west of the 1002 area, outcrops south of the...
Estimation of potential runoff-contributing areas in the Kansas-Lower Republican River basin, Kansas
Kyle E. Juracek
1999, Water-Resources Investigations Report 99-4089
Digital soils and topographic data were used to estimate and compare potential runoff-contributing areas for 19 selected subbasins representing soil, slope, and runoff variability within the Kansas-Lower Republican (KLR) River Basin. Potential runoff-contributing areas were estimated separately and collectively for the processes of infiltration-excess and saturation-excess overland flow using a...
Overview of research on water, gas, and radionuclide transport at the Amargosa Desert Research Site, Nevada: A section in U.S. Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Charleston, South Carolina, March 8-12, 1999: Volume 3 (Part C) (WRI 99-4018C)
Brian J. Andraski, David A. Stonestrom
David W. Morganwalp, Herbert T. Buxton, editor(s)
1999, Report, U.S. Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Charleston, South Carolina, March 8-12, 1999: Volume 3 (Part C) (WRI 99-4018C)
Studies at the U.S. Geological Survey Amargosa Desert Research Site have focused on characterizing factors and processes that control transport and fate of contaminants in arid environments. This paper summarizes research results that have been published through 1998. Results have improved understanding of water and gas movement through a thick...
Isotopic composition of water in a deep unsaturated zone beside a radioactive-waste disposal area near Beatty, Nevada
David A. Stonestrom, David E. Prudic, Robert G. Striegl
David W. Morganwalp, Herbert T. Buxton, editor(s)
1999, Report, U.S. Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Charleston, South Carolina, March 8-12, 1999: Volume 3 (Part C) (WRI 99-4018C)
The isotopic composition of water in deep unsaturated zones is of interest because it provides information relevant to hydrologic processes and contaminant migration. Profiles of oxygen-18 (18O), deuterium (D), and tritium (3H) from a 110-meter deep unsaturated zone, together with data on the isotopic composition of ground water...
Upper Klamath Lake Basin nutrient-loading study: Assessment of historic flows in the Williamson and Sprague rivers
John C. Risley, Antonius Laenen
1999, Water-Resources Investigations Report 98-4198
The Williamson River Basin, located in south-central Oregon, has a drainage area of approximately 3,000 square miles. The Sprague River, which flows into the Williamson River Basin, has a drainage area of 1,580 square miles. Together, the Williamson and Sprague Rivers supply about one-half of the inflow to Upper Klamath...
Relations of surface-water quality to streamflow in the Atlantic Coastal, lower Delaware River, and Delaware Bay basins, New Jersey, water years 1976-93
Kathryn Hunchak-Kariouk, Debra E. Buxton, R. Edward Hickman
1999, Water-Resources Investigations Report 98-4244
Relations of water quality to streamflow were determined for 18 water-quality constituents at 28 surface-water-quality stations within the drainage area of the Atlantic Coastal, lower Delaware River, and Delaware Bay Basins for water years 1976-93. Surface-water-quality and streamflow data were evaluated for trends (through time) in constituent concentrations during high...
Development of a comprehensive watershed model applied to study stream yield under drought conditions
S.P. Perkins, M. Sophocleous
1999, Groundwater (37) 418-426
We developed a model code to simulate a watershed's hydrology and the hydraulic response of an interconnected stream-aquifer system, and applied the model code to the Lower Republican River Basin in Kansas. The model code links two well-known computer programs: MODFLOW (modular 3-D flow...
Oxygen isotopes of dissolved sulfate as a tool to distinguish natural and mining-related dissolved constituents
Winfield G. Wright, D. Kirk Nordstrom
1999, Report
Natural and mining-related dissolved-constituent concentrations need to be distinguished in a watershed affected by abandoned mines to prioritize subbasins for remediation and to assist with the establishment of water-quality standards. The oxygen isotopes of dissolved sulfate can be used to distinguish between natural and mining-related sources of dissolved constituents. Several...
Profiles of gamma-ray and magnetic data from aerial surveys over the conterminous United States
Joseph S. Duval, Frederic E. Riggle
1999, Data Series 31
This publication contains images for the conterminous U.S. generated from geophysical data, software for displaying and analyzing the images, and software for displaying and examining the profile data from the aerial surveys flown as part of the National Uranium Resource Evaluation (NURE) Program of the U.S. Department of Energy. The...
Water resources data Texas, water year 1998, volume 3. Colorado River basin, Lavaca River basin, Guadalupe River basin, Nueces River basin, Rio Grande basin, and intervening coastal basins
S. C. Gandara, W.J. Gibbons, F.L. Andrews, D.L. Barbie
1999, Water Data Report TX-98-3
Water-resources data for the 1998 water year for Texas are presented in four volumes, and consist of records of stage, discharge, and water quality of streams and canals; stage, contents, and water-quality of lakes and reservoirs; and water levels and water quality of ground-water wells. Volume 3 contains records for...
Estimation of minimum 7-day, 2-year discharge for selected stream sites, and associated low-flow water-quality data, southeast Texas, 1997-98
Jeffery W. East
1999, Fact Sheet 122-99
The U.S. Geological Survey (USGS) operates a network of streamflow-gaging stations in Texas that provides discharge data used for water-management decisions and various other purposes. Operating stations at all locations where discharge data are needed is not feasible, but the statistical characteristics of the network station data can be used...
Water Resources Data, Kansas, Water Year 1998
J.E. Putnam, D.L. Lacock, D.R. Schneider, M.D. Carlson
1999, Water Data Report KS-98-1
Water-resources data for the 1998 water year for Kansas consist of records of stage, discharge, and water quality of streams; elevation and contents of lakes and reservoirs; and water levels of ground-water wells. This report contains records for water discharge at 149 gaging stations; elevation and contents at 19 watershed...
Comparison of two approaches for determining ground-water discharge and pumpage in the lower Arkansas River Basin, Colorado, 1997-98
Russell G. Dash, Brent M. Troutman, Patrick Edelmann
1999, Water-Resources Investigations Report 99-4221
In March 1994, the Colorado Division of Water Resources (CDWR) adopted ?Rules Governing the Measurement of Tributary Ground Water Diversions Located in the Arkansas River Basin? (Office of the State Engineer, 1994); these initial rules were amended in February 1996 (Office of the State Engineer, 1996). The amended rules require...
Water Resources Data Minnesota Water Year 1998
Water Resources Division, U.S. Geological Survey
1999, Water Data Report MN-98-1
Water Resources Division of the U.S. Geological Survey (USGS), in cooperation with State agencies, obtains a large amount of data pertaining to the water resources of Minnesota each water year. These data, accumulated during many years, constitute a valuable data base for developing an improved understanding of the water resources...
Concentrations and possible sources of nitrate in water from the Silurian-Devonian aquifer, Cedar Falls, Iowa
Bryan D. Schaap
1999, Water-Resources Investigations Report 99-4106
Carbonate rocks of the Silurian-Devonian aquifer are the primary source of water for Cedar Falls, Iowa. A trend of increasing nitrate concentrations has been detected in samples from Cedar Falls water-supply wells 9 and 10, and 1998 nitrate concentrations were close to the U.S. Environmental Protection Agency's Maximum Contaminant Level...
SutraPlot, a graphical post-processor for SUTRA, a model for ground-water flow with solute or energy transport
W. R. Souza
1999, Open-File Report 99-220
This report documents a graphical display post-processor (SutraPlot) for the U.S. Geological Survey Saturated-Unsaturated flow and solute or energy TRAnsport simulation model SUTRA, Version 2D3D.1. This version of SutraPlot is an upgrade to SutraPlot for the 2D-only SUTRA model (Souza, 1987). It has been modified to add 3D functionality, a...
Induced infiltration from the Rockaway River and water chemistry in a stratified-drift aquifer at Dover, New Jersey, with a section on modeling ground-water flow in the Rockaway River Valley
Joel E. Dysart, Stephen J. Rheaume, Angelo L. Kontis
1999, Water-Resources Investigations Report 96-4068
The vertical hydraulic conductivity per unit thickness (streambed leakance) of unconsolidated sediment immediately beneath the channel of the Rockaway River near a municipal well field at Dover, N.J., is between 0.2 and 0.6 feet per day per foot and is probably near the low end of this range. This estimate...
Water Resources Data, California, Water Year 1998. Volume 2. Pacific Slope Basins from Arroyo Grande to Oregon State Line except Central Valley
M.F. Friebel, L.A. Freeman, M.D. Webster
1999, Water Data Report CA-98-2
Water-resources data for the 1998 water year for California consist of records of stage, discharge, and water quality of streams, stage and contents in lakes and reservoirs, and water levels and water quality in wells. Volume 2 contains discharge records for 113 gaging stations, gage height records for 5 stations,...
Water resources data, Maryland and Delaware, water year 1998, volume 1. surface-water data
Robert W. James Jr., Richard W. Saffer, Anthony Tallman
1999, Water Data Report MD-DE-DC-98-1
Water resources data for the 1998 water year for Maryland and Delaware consist of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs. This volume (Volume 1. Surface-Water Data) contains records for water discharge at 105 gaging stations; stage and contents of 1...
Evaluation of processes affecting 1,2-dibromo-3-chloropropane (DBCP) concentrations in ground water in the eastern San Joaquin Valley, California: Analysis of chemical data and ground-water flow and transport simulations
Karen R. Burow, Sandra Y. Panshin, Neil H. Dubrovsky, David Vanbrocklin, Graham E. Fogg
1999, Water-Resources Investigations Report 99-4059
Future use of the sole-source aquifer near Fresno in the eastern San Joaquin Valley, California, will depend, in part, on how long 1,2-dibromo-3-chloropropane (DBCP), an agricultural fumigant banned from use since the late 1970's, persists at concentrations greater than the maximum contaminant level of 0.2 micrograms per liter (mg/L). Field...
Water resources data, Arizona, water year 1998
S. Tadayon, N.R. Duet, G.G. Fisk, H.F. McCormack, C.K. Partin, G.L. Pope, P.D. Rigas
1999, Water Data Report AZ-98-1
Water discharge data for the 1998 water year for Arizona consist of records of stage, discharge, and water quality of streams; stage, contents, water quality of lakes and reservoirs; water levels of observation wells; and quality of ground water. This report contains discharge records for 167 gaging stations, annual peaks...
