Tectonic characterization of a potential high-level nuclear waste repository at Yucca Mountain, Nevada
John W. Whitney, Dennis W. O’Leary
1993, Conference Paper, Dynamic Analysis and Design Considerations for High-Level Nuclear Waste Repositories
Tectonic characterization of a potential high-level nuclear waste repository at Yucca Mountain, Nevada, is needed to assess seismic and possible volcanic hazards that could affect the site during the preclosure (next 100 years) and the behavior of the hydrologic system during the postclosure (the following 10,000 years) periods. Tectonic characterization...
Surface chemistry of ferrihydrite: Part 2. Kinetics of arsenate adsorption and coprecipitation
C. C. Fuller, J.A. Dadis, G.A. Waychunas
1993, Geochimica et Cosmochimica Acta (57) 2271-2282
The kinetics of As(V) adsorption by ferrihydrite was investigated in coprecipitation and postsynthesis adsorption experiments conducted in the pH range 7.5-9.0. In coprecipitation experiments, As(V) was present in solution during the hydrolysis and precipitation of iron. In adsorption experiments, a period of rapid (<5 min) As(V) uptake from solution was...
Surface chemistry of ferrihydrite: Part 1. EXAFS studies of the geometry of coprecipitated and adsorbed arsenate
G.A. Waychunas, B.A. Rea, C. C. Fuller, J.A. Davis
1993, Geochimica et Cosmochimica Acta (57) 2251-2269
EXAFS spectra were collected on both the As and Fe K-edges from samples of two-line ferrihydrite with adsorbed (ADS) and coprecipitated (CPT) arsenate prepared over a range of conditions and arsenate surface coverages. Spectra also were collected for arsenate adsorbed on the surfaces of three FeOOH crystalline polymorphs, α (goethite),...
Effects of small-scale vertical variations in well-screen inflow rates and concentrations of organic compounds on the collection of representative ground-water-quality samples
Jacob Gibs, G. Allan Brown, Kenneth S. Turner, Cecilia L. MacLeod, James Jelinski, Susan A. Koehnlein
1993, Ground Water (31) 201-208
Because a water sample collected from a well is an integration of water from different depths along the well screen, measured concentrations can be biased if analyte concentrations are not uniform along the length of the well screen. The resulting concentration in the sample, therefore, is a function of variations...
Seismic reflection profiling: essential geophysical data for Yucca mountain, Nevada
W.C. Hunter, R.W. Spengler, T.M. Brocher
1993, Conference Paper, High Level Radioactive Waste Management
Yucca Mountain, Nevada, consists of a thick sequence of ashflow tuffs and lavas fractured into intact blocks with east-dipping strata, marginal broken zones characterized by dense faulting and brecciation, and intervening down-to-the-west fault zones with locally atypical west-dipping strata. Uncertainty in the structural setting of Yucca Mountain has resulted in...
Variations in aqueous sulfate concentrations at Panola Mountain, Georgia
J. B. Shanley, N.E. Peters
1993, Journal of Hydrology (146) 361-382
Aqueous sulfate concentrations were measured in incident precipitation, canopy throughfall, stemflow, soil water, groundwater, and streamwater at three locations in a 41 ha forested watershed at Panola Mountain State Park in the Georgia Piedmont. To evaluate the variations in sulfate concentrations,...
Summary of revised potentiometric-surface map for Yucca Mountain and vicinity, Nevada
E. M. Ervin, R. R. Luckey, D.J. Burkhardt
1993, Conference Paper, High Level Radioactive Waste Management
The revised map for the potentiometric surface of the uppermost saturated zone in Tertiary volcanic rocks at Yucca Mountain, Nevada, is based mainly on 1988 water levels. Refinement of the water-level corrections has increased understanding of the area immediately east-southeast and hydrologically downgradient of Yucca Mountain. This small-gradient area is...
Heat flow from four new research drill holes in the Western Cascades, Oregon, U.S.A.
S. E. Ingebritsen, M. A. Scholl, D. R. Sherrod
1993, Geothermics (22) 151-163
Conceptual models of the thermal structure of the Oregon Cascade Range propose either (1) a narrow zone of magmatic heat sources, flanked by shallow heat-flow anomalies caused by lateral ground-water flow; or (2) a wide zone of magmatic heat sources, with localized, generally negligible ground-water effects. The proposed narrow heat...
Effect of treated-sewage contamination upon bacterial energy charge, adenine nucleotides, and DNA content in a sandy aquifer on Cape Cod
David W. Metge, Myron H. Brooks, Richard L. Smith, Ronald W. Harvey
1993, Applied and Environmental Microbiology (59) 2304-2310
Changes in adenylate energy charge (ECA) and in total adenine nucleotides (AT) and DNA content (both normalized to the abundance of free-living, groundwater bacteria) in response to carbon loading were determined for a laboratory-grown culture and for a contaminated aquifer. The latter study involved a 3-km-long transect through a contaminant...
Application of mixed-mode, solid-phase extraction in environmental and clinical chemistry. Combining hydrogen-bonding, cation-exchange and Van der Waals interactions
M. S. Mills, E.M. Thurman, M.J. Pedersen
1993, Journal of Chromatography A (629) 11-21
Silica- and styrene-divinylbenzene-based mixed-mode resins that contain C8, C18 and sulphonated cation-exchange groups were compared for their efficiency in isolation of neutral triazine compounds from water and of the basic drug, benzoylecgonine, from urine. The triazine compounds were isolated by a combination of Van der Waals and hydrogen-bonding interactions, and...
Effects of dried wastewater-treatment sludge application on ground-water quality in South Dade County, Florida
Barbara Howie
1992, Water-Resources Investigations Report 91-4135
Four test fields in the south Dade agricultural area were studied to determine the effects of sludge application on ground-water quality. Two fields had been cultivated for 10 years or more, and two had not been farmed for at least 10 years. The fields were representative of the area's two...
Sonar monitoring of gravel-transport processes at a stream-gaging station in a disturbed watershed [abs.]
R.L. Dinehart
1992, Book chapter, Proceedings 1992 International Association for Hydrological Sciences Meeting, Erosion and Sediment Transport Monitoring Programs in River Basins, Oslo, Norway
1993 Fiscal Year Water Resources Division Information Guide
Water Resources Division, U.S. Geological Survey
1992, Report
This Guide briefly describes the Water Resources Division's mission, program, and organizational structure, and where and how to obtain specific types of hydrologic information. The Guide also contains a listing of addresses, telephone numbers, and office hours for Headquarters, Regional, District, and State offices. For some offices, two addresses are...
Lake-size variations in the Lahontan and Bonneville basins between 13,000 and 9000 14C yr B.P
L. Benson, D. Currey, Y. Lao, S. Hostetler
1992, Palaeogeography, Palaeoclimatology, Palaeoecology (95) 19-32
Recessions of Lakes Lahontan and Bonneville that commenced ∼13,500 14C yr B.P. were interrupted at ⪖11,500 14C yr B.P. in the Lahontan basin and ∼12,200 14C yr B.P. in the Bonneville basin by relatively large perturbations in lake level that persisted for ∼ 2000 years. Minor glacial readvances in the Sierra Nevada and...
Geohydrology and simulated ground-water flow, Plymouth-Carver aquifer, southeastern Massachusetts
Bruce P. Hansen, Wayne W. Lapham
1992, Water-Resources Investigations Report 90-4204
The Plymouth-Carver aquifer underlies an area of 140 square miles and is the second largest aquifer in areal extent in Massachusetts. It is composed primarily of saturated glacial sand and gravel. The water-table and bedrock surface were mapped and used to determine saturated thickness of the aquifer, which ranged from...
Hydrologic data from the study of acidic contamination in the Miami Wash-Pinal Creek area, Arizona, water years 1990-91
S.A. Longsworth, A.M. Taylor
1992, Open-File Report 92-468
No abstract available....
Physical, chemical, and biological data for detailed study of irrigation drainage in the Kendrick Reclamation Project area, Wyoming, 1988-90
R.B. See, D. A. Peterson, Pedro Ramirez Jr.
1992, Open-File Report 91-533
No abstract available....
Water quality and hydrologic data for the West Branch Swift River and East Branch Fever Brook, Quabbin Reservoir drainage basin, Massachusetts
Rochelle L. Rittmaster, Gerald G. Girouard
1992, Open-File Report 90-182
Hydrologic Instrumentation Facility of the U.S. Geological Survey; annual report 1991
V.J. Latkovich
1992, Open-File Report 92-132
Data on water quality, lake sediment, and lake-level fluctuation, St. Croix Indian Reservation, Wisconsin, 1981-87
D. P. Krabbenhoft, J. T. Krohelski
1992, Open-File Report 92-26
This report is a compilation of data on surface- and ground-water quality, lake sediment, and lake-level fluctuation collected by the U.S. Geological Survey (USGS) during 1981- 87 on or near the St. Croix Indian Reservation. The purpose of this report is to provide baseline data on selected aspects of the...
Selected meteorological data for an arid site near Beatty, Nye County, Nevada, calendar year 1987
James L. Wood, Jeffrey M. Fischer
1992, Open-File Report 92-59
Selected meteorological data were collected at a study site adjacent to a low-level radioactive-waste burial facility near Beatty, Nevada, for calendar year 1987. Data were collected in support of an ongoing study to estimate the potential for downward movement of radionuclides into the unsaturated sediments beneath waste-burial trenches at the...
Summary of ground-water hydrology of the Cambrian-Ordovician aquifer system in the northern Midwest, United States
H. L. Young
1992, Professional Paper 1405-A
The Cambrian-Ordovician aquifer system contains very productive aquifers throughout an area of about 161,000 square miles in the northern Midwest. The aquifer system is used extensively for industrial and rural water supplies and is the primary source of water for many municipalities in most of its area of occurrence, except...
Trihalomethane formation potential of Kentucky River water
R. E. Rathbun, K. D. White, R. D. Evaldi
1992, Water-Resources Investigations Report 92-4057
No abstract available....
Hydrology and digital simulation of the regional aquifer system, eastern Snake River Plain, Idaho
S. P. Garabedian
1992, Professional Paper 1408-F
The occurrence and movement of water in the regional aquifer system that underlies the eastern Snake River Plain, Idaho, de- pend on the transmissivity and storage capacity of rocks that compose the geologic framework and on the distribution and amount of recharge and discharge of water within that frame- work....
Floating sample-collection platform with stage-activated automatic water sampler for streams with large variation in stage
Stephen R. Tarte, A.R. Schmidt, Daniel J. Sullivan
1992, Open-File Report 92-149
A floating sample-collection platform is described for stream sites where the vertical or horizontal distance between the stream-sampling point and a safe location for the sampler exceed the suction head of the sampler. The platform allows continuous water sampling over the entire storm-runoff hydrogrpah. The platform was developed for a...
