Evaluation of the Surface-Water Quantity, Surface-Water Quality, and Rainfall Data-Collection Programs in Hawaii, 1994
Richard A. Fontaine
1996, Water-Resources Investigations Report 95-4212
This report documents the results of an evaluation of the surface-water quantity, surface-water quality, and rainfall data-collection programs in Hawaii. Fourteen specific issues and related goals were identified for the surface-water quantity program and a geographic information systems (GIS) data base was developed summarizing information for all surface-water stream gages...
Digital hydrographic, land use/land cover, and hydrologic unit boundary files for the Death Valley region of southern Nevada and southeastern California processed from U.S. Geological Survey 1:100,000- and 1:250,000-scale digital data files
A. K. Turner, F. A. D’Agnese, C.C. Faunt
1996, Open-File Report 95-362
Plan of study to quantify the hydrologic relations between the Rio Grande and the Santa Fe Group aquifer system near Albuquerque, central New Mexico
D. P. McAda
1996, Water-Resources Investigations Report 96-4006
The Albuquerque Basin in central New Mexico covers an area of about 3,060 square miles. Ground water from the Santa Fe Group aquifer system of the Albuquerque Basin is the principal source of water for municipal, domestic, commercial, and industrial uses in the Albuquerque area, an area of about 410 square miles....
Hydrology of the Wolf Branch sinkhole basin, Lake County, east-central Florida
D. M. Schiffer
1996, Open-File Report 96-143
A 4-year study of the hydrology of the Wolf Branch sinkhole basin in Lake County, Florida, was conducted from 1991-95 by the U.S. Geological Survey to provide information about the hydrologic characteristics of the drainage basin in the vicinity of Wolf Sink. Wolf Branch drains a 4.94 square mile area...
Temporal changes in the configuration of the water table in the vicinity of the management systems evaluation area site, central Nebraska
John M. Kilpatrick
1996, Water-Resources Investigations Report 94-4173
To improve understanding of the hydrologic characteristics of the shallow aquifer in the vicinity of the Management Systems Evaluation Area site near Shelton, Nebraska, water levels were measured in approximately 130 observation wells in both June and September 1991. Two water-table maps and a water-level-change map were drawn on the...
A nitrogen-rich septage-effluent plume in a coastal aquifer, marsh, and creek system, Orleans, Massachusetts; project summary, 1988-95
P.K. Weiskel, L.A. DeSimone, B.L. Howes
1996, Open-File Report 96-111
A report summarizing the major findings of an ongoing study of a nitrogen-rich septage-effluent plume in Orleans, Massachusetts has been published. The study is being conducted by the U.S. Geological Survey and the Massachusetts Department of Environmental Protection, Office of Watershed Management, with additional support from the Cape Cod Commission....
A guide to safe field operations
D. K. Yobbi, T.H. Yorke, R.T. Mycyk
1996, Open-File Report 95-777
Most functions of the U.S. Geological Survey (USGS), Water Resources Division (WRD) require employees to participate in numerous field activities ranging from routine meetings with cooperators, other federal and public officials, and private citizens to potentially hazardous assignments, such as making flood measurements and scuba diving to service underwater instruments....
Statistical and descriptive summaries of water-resources data for the Cannonball River basin, North Dakota and South Dakota
Edwin A. Wesolowski, S.D. Zainhofsky, Valerie M. Dressler
1996, Open-File Report 96-108
Existing hydrologic data and information for the Cannonball River Basin were compiled by the U.S. Geological Survey in cooperation with the Bureau of Reclamation. This report presents a summary of surface-water quality and streamflow data, ground-water quality data, ground-water level data, water-use data, and other information compiled from the U.S....
Status of ground-water resources at U.S. Navy Support Facility, Diego Garcia; summary of hydrologic and climatic data, January 1993 through September 1995
J.D. Torikai
1996, Open-File Report 96-165
This report contains hydrologic and climatic data that describe the status of ground-water resources at U.S. Navy Support Facility, Diego Garcia. Data presented are from January 1993 through September 1995, although the report focuses on hydrologic events from July through September 1995. Cumulative rainfall for July through September 1995 was...
Hydrologic data for the East Poplar oil field, Fort Peck Indian Reservation, Northeastern Montana
J.N. Thamke, S. D. Craigg, T.M. Mendes
1996, Open-File Report 95-749
This report presents selected hydrologic data for the East Poplar oil field, located in the south-central part of the Fort Peck Indian Reservation in northeastern Montana. Data about the occurrence, quantity, and quality of ground and surface water are presented in tabular form. The tables contain records of privately owned...
Summary of suspended-solids concentration data, San Francisco Bay, California, water year 1994
P.A. Buchanan, D. H. Schoellhamer, R.C. Sheipline
1996, Open-File Report 95-776
Suspended-solids concentration data were collected in San Francisco Bay during water year 1994. Optical backscatterance sensors and water samples were used to monitor suspended solids continuously at two sites in Suisun Bay, two sites in Central San Francisco Bay, and three sites in South San Francisco Bay. Sensors were positioned...
Chemical and stable-isotope data from an experiment to examine temporal variability in water samples from screened wells on Cape Cod, Massachusetts, 1994
T. E. Reilly, D.R. LeBlanc, K.W. Bussey, T.B. Councell, R. L. Smith, J.K. Böhlke
1996, Open-File Report 95-734
No abstract available....
Automated, colorimetric methods for determination of nitrate plus nitrite, nitrite, ammonium and orthophosphate ions in natural water samples
Ronald C. Antweiler, Charles J. Patton, Howard E. Taylor
1996, Open-File Report 93-638
The apparatus and methods used for the automatic, colorimetric determinations of dissolved nutrients (nitrate plus nitrite, nitrite, ammonium and orthophosphate) in natural waters are described. These techniques allow for the determination of nitrate plus nitrite for the concentration range 0.02 to 8 mg/L (milligrams per liter) as N (nitrogen); for...
Lithologic and ground-water data for monitoring wells in the Santa Clara-Calleguas ground-water basin, Ventura County, California, 1989-95
J.N. Densmore
1996, Open-File Report 96-120
Twenty-three multiple-well (nested) monitoring sites were constructed in the western part of the Santa Clara-Calleguas Hydrologic Unit and ground-water basin between October 1989 and May 1994. This report is a compilation of the data collected at these sites from October 1989 through April 1995 and includes location and design of...
Numerical model analysis of the effects of ground-water withdrawals on discharge to streams and springs in small basins typical of the Puget Sound Lowland, Washington
D. S. Morgan, J. L. Jones
1996, Open-File Report 95-470
A numerical ground-water flow model of a hypothetical basin was constructed and used to investigate the effects of ground-water withdrawals on rates of natural discharge to streams and springs in small basins of the Puget Sound Lowland. Definitions of the topography, geology, drainage, and climate of the hypothetical basin were...
A metabolism-based trophic index for comparing the ecological values of shallow-water sediment habitats
W.M. Rizzo, S. K. Dailey, G. J. Lackey, R.R. Christian, B. E. Berry, R. L. Wetzel
1996, Estuaries (19) 247-256
We determined fluxes of oxygen and nutrients between water and sediments at 21 sites primarily in Virginia and North Carolina estuaries, over the past 15 yr. These sites represented broad ranges in salinity, tidal amplitude, hydrology, nutrient availability, turbidity, light availability, depth, sediment grain size, and anthropogenic disturbance. In general,...
Quantification of natural vapor fluxes of trichloroethene in the unsaturated zone at Picatinny Arsenal, New Jersey
James A. Smith, Amy K. Tisdale, H. Jean Cho
1996, Environmental Science & Technology (30) 2243-2250
The upward flux of trichloroethene (TCE) vapor through the unsaturated zone above a contaminated, water-table aquifer at Picatinny Arsenal, New Jersey, has been studied under natural conditions over a 12-month period. Vertical gas-phase diffusion fluxes were estimated indirectly by measuring the TCE vapor concentration gradient in the unsaturated zone and...
Comparison of Eh and H2 measurements for delineating redox processes in a contaminated aquifer
Francis H. Chapelle, Sheridan K. Haack, Peter Adriaens, Mark A. Henry, Paul M. Bradley
1996, Environmental Science & Technology (30) 3365-3569
Measurements of oxidation-reduction potential (Eh) and concentrations of dissolved hydrogen (H2) were made in a shallow groundwater system contaminated with solvents and jet fuel to delineate the zonation of redox processes. Eh measurements ranged from +69 to -158 mV in a cross section of the contaminated plume and accurately delineated oxic from...
The roles of organic matter in the formation of uranium deposits in sedimentary rocks
Charles S. Spirakis
1996, Ore Geology Reviews (11) 53-69
Because reduced uranium species have a much smaller solubility than oxidized uranium species and because of the strong association of organic matter (a powerful reductant) with many uranium ores, reduction has long been considered to be the precipitation mechanism for many types of uranium deposits. Organic matter may also be...
Geochemical and hydrologic controls on phosphorus transport in a sewage-contaminated sand and gravel aquifer near Ashumet Pond, Cape Cod, Massachusetts
Donald A. Walter, Brigid A. Rea, Kenneth G. Stollenwerk, Jennifer G. Savoie
1996, Water Supply Paper 2463
Currently (1993), about 170 kg/yr of phosphorus discharges into Ashumet Pond on Cape Cod from a plume of sewage-contaminated ground water. Phosphorus in the plume is mobile in two distinct geochemical environments--an anoxic zone containing dissolved iron and a suboxic zone containing dissolved oxygen. Phosphorus mobility in the suboxic zone...
Naturally occurring and mining-affected dissolved metals in two subbasins of the Upper Animas River Basin, southwestern Colorado
Winfield G. Wright, Cathy J. Janik
1996, Fact Sheet 243-95
No abstract available....
Hydrology of the Mississippi River valley alluvial aquifer, south-central United States
D. J. Ackerman
1996, Professional Paper 1416-D
Ground-water flow simulation indicates that pumpage from the aquifer since the early 1900's has caused a decrease in ground-water outflow to rivers, an increase in flow from rivers into the aquifer, and an increase in flow to the aquifer through the overlying confining unit. By the mid-1970's, rivers became a...
Summary of the Snake River plain Regional Aquifer-System Analysis in Idaho and eastern Oregon
G. F. Lindholm
1996, Professional Paper 1408-A
Regional aquifers underlying the 15,600-square-mile Snake River Plain in southern Idaho and eastern Oregon was studied as part of the U.S. Geological Survey's Regional Aquifer-System Analysis program. The largest and most productive aquifers in the Snake River Plain are composed of Quaternary basalt of the Snake River Group, which underlies...
Episodic acidification of small streams in the northeastern United States: Episodic response project
P.J. Wigington Jr., J.P. Baker, David R. DeWalle, W.A. Kretser, Peter S. Murdoch, H. A. Simonin, J. Van Sickle, M.K. Mcdowell, D.V. Peck, W.R. Barchet
1996, Ecological Applications (6) 374-388
The Episodic Response Project (ERP) was an interdisciplinary study designed to address uncertainties about the occurrence, nature, and biological effects of episodic acidification of streams in the northeastern United States. The ERP research consisted of intensive studies of the chemistry and biological effects of episodes in 13 streams draining forested...
Structural damage, ground failure, and hydrologic effects of the magnitude (Mw) 5.9 Draney Peak, Idaho, earthquake of February 3, 1994
R. L. Schuster, W. Murphy
1996, Seismological Research Letters (67) 20-29
No abstract available....
