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Page 1615, results 40351 - 40375

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Publication Extents

Not all publications have extents, not all extents are completely accurate
A selected bibliography of water-related research in the upper Klamath Basin, Oregon
Dorie L. Brownell, Mia R. Rinallo
1995, Open-File Report 95-285
A bibliography containing 165 selected references was compiled to assist local, State, and Federal agencies that have ongoing water-related research interests in the Upper Klamath Basin. The report has two parts. Part 1 is a list of bibliographic citations alphabetized by author, and Part 2 is a subject index that...
Climatic and lake temperature data for Wetland P1, Cottonwood Lake Area, Stutsman County, North Dakota, 1982-87
Renee S. Parkhurst, A.M. Sturrock, D.O. Rosenberry, T. C. Winter
1995, Open-File Report 94-546
Research on the hydrology of Wetland P1 and the Cottonwood Lake Area includes the study of evaporation. Presented here in a graphical format are those data collected during the open-water seasons of 1982-87 that were needed for energy- budget and mass-transfer evaporation studies. The data include air temperatures, water surface...
Hydrologic conditions, habitat characteristics, and occurrence of fishes in the Apalachicola River floodplain, Florida; second annual report of progress, October 1993-September 1994
Helen M. Light, Melanie R. Darst, J. W. Grubbs
1995, Open-File Report 95-167
This report describes progress and interim results of the second year of a 4-year study. The purpose of the 4-year study is to describe aquatic habitat types in the Apalachicola River floodplain and quantify the amount of habitat inundated by the river at various stages. Final results will be used...
Field screening of water quality, bottom sediment, and biota associated with irrigation drainage, Wind River Indian Reservation, Wyoming, 1992-93
Dennis N. Grasso, Mary E. Jennings, Wilfrid J. Sadler
1995, Open-File Report 95-121
Physical, chemical, and biological data were collected in 1992-93 from irrigation drainage areas and wetlands of the Wind River Federal Irrigation Project, Wind River Indian Reservation, Wyoming. Most samples collected had concentrations of chemical constituents less than the established levels of concern for water, bottom sediment, and biota. In the...
Nonpoint sources of pesticides in the San Joaquin River, California; input from winter storms, 1992-93
Joseph L. Domagalski
1995, Open-File Report 95-165
Organophosphate insecticides, including chlor- pyrifos, diazinon, and methidathion, are applied to dormant orchards in the San Joaquin Valley, California, during late December through January. This time frame coincides with the period of heaviest rainfall in the valley, and rainfall mobilizes a portion of these pesticides from the orchards. The pesticides...
Ground-water baseflow to the upper Mississippi River upstream of the Minneapolis-St. Paul area, Minnesota during July 1988
G. A. Payne
1995, Open-File Report 94-478
Ground-water baseflow to six subreaches of the Upper Mississippi River were estimated for July 1988, a period of drought. Ground-water baseflow to each subreach was estimated on the basis of streamflow gains determined from records of daily discharge at gaging stations. Streamflow gains were adjusted for estimated inflow from tributaries,...
Bibliography of U.S. Geological Survey reports on the water resources of Florida, 1886-1995
Carmen A. Garcia, N.D. Hoy
1995, Open-File Report 95-185
The U.S. Geological Survey has released a listing of its reports on water resources in Florida for the period 1886-1995. Most of the reports contained in the listing were prepared by the U.S. Geological Survey in cooperation with numerous public agencies in Florida. The compilation has a full bibliographic list...
Channel change on the Santa Cruz River, Pima County, Arizona, 1936-86
John T. Parker
1995, Water Supply Paper 2429
The Santa Cruz River in southeastern Arizona has a long history of channel instability. Since the late 19th century, lateral channel erosion has caused extensive property damage, particularly in Pima County. The dominant mechanism of channel change in a reach depends on channel morphology and flood magnitude. The timing and...
Application of surface geophysical techniques in a study of the geomorphology of the lower Copper River, Alaska
T. P. Brabets
1995, Water-Resources Investigations Report 94-4165
As part of a geomorphology study of the lower Copper River, three surface geophysical techniques were tested for their ability to detect infilled scour holes at bridge piers, old river channels, and subbottom deposits in a glacier-formed lake. The methods were (1) ground-penetrating radar, (2) continuous seismic reflection using a...
Reconnaissance of ground-water quality in the North Platte Natural Resources District, western Nebraska, June-July 1991
Ingrid M. Verstraeten, S. S. Sibray, J. C. Cannia, D. Q. Tanner
1995, Water-Resources Investigations Report 94-4057
One-hundred twenty wells completed in unconfined Quaternary alluvial, Ogallala, Arikaree, Brule fractured, sand and confined Chadron and undifferentiated Cretaceous water-bearing units were sampled in June and July 1991 to characterize the quality of ground water in the study area. More than 75 percent of the water samples had nitrate and...
Statistical summary of selected physical, chemical, and microbial characteristics, and estimates of constituent loads in urban stormwater, Maricopa County, Arizona
T. J. Lopes, K. D. Fossum, J. V. Phillips, J. E. Monical
1995, Water-Resources Investigations Report 94-4240
Stormwater and streamflow in the Phoenix, Arizona, area were monitored to determine the physical, chemical, and microbial characteristics of storm- water from areas having different land uses; to describe the characteristics of streamflow in a river that receives urban stormwater; and to estimate constituent loads in stormwater from unmonitored areas...
Effects of surface mining on the hydrology and biology in the Stony Fork basin, Fayette County, Pennsylvania, 1978-85
D.R. Williams, J.R. Ritter, T.M. Mastrilli
1995, Water-Resources Investigations Report 94-4056
The effects of surface coal mining on the water quality, sediment discharge, and aquatic biology of streams in the Stony Fork Basin in southwestern Pennsylvania were studied from 1978 through 1985. Data were collected at five stream sites and one mine discharge site. Field data included streamflow, temperature, specific conductance,...
A feasibility study to estimate minimum surface-casing depths of oil and gas wells to prevent ground-water contamination in four areas of western Pennsylvania
T. F. Buckwalter, P. J. Squillace
1995, Water-Resources Investigations Report 87-4136
Hydrologic data were evaluated from four areas of western Pennsylvania to estimate the minimum depth of well surface casing needed to prevent contamination of most of the fresh gr6unct-water resources by oil and gas wells. The areas are representative of the different types of oil and gas activities and of...
Surface-water-quality assessment of the lower Kansas River basin, Kansas and Nebraska– Analysis of available data through 1986
J. K. Stamer
Paul Robert Jordan, editor(s)
1995, Water Supply Paper 2352-B
Available surface water-quality data were used to provide an initial assessment of current water-quality conditions for 1978-86, define long-term trends in constituent concentrations, and relate current water-quality conditions and trends to human and natural factors in the lower Kansas River basin, Kansas and Nebraska. This basin drains 15,300 square miles...
Gross-beta activity in ground water: natural sources and artifacts of sampling and laboratory analysis
Alan H. Welch, Zoltan Szabo, David L. Parkhurst, Peter C. Van Metre, Ann H. Mullin
1995, Applied Geochemistry (10) 491-503
Gross-beta activity has been used as an indicator of beta-emitting isotopes in water since at least the early 1950s. Originally designed for detection of radioactive releases from nuclear facilities and weapons tests, analysis of gross-beta activity is widely used in studies of naturally occurring radioactivity in ground water. Analyses of...
Methane production and consumption monitored by stable H and C isotope ratios at a crude oil spill site, Bemidji, Minnesota
Kinga Revesz, Tyler B. Coplen, Mary J. Baedecker, Pierre D. Glynn
1995, Applied Geochemistry (10) 505-516
Stable isotopic ratios of C and H in dissolved CH4 and C in dissolved inorganic C in the ground water of a crude-oil spill near Bemidji, Minnesota, support the concept of CH4production by acetate fermentation with a contemporaneous increase in HCO3−concentration. Methane concentrations in the saturated zone decrease from 20.6...
State-dependent anisotrophy: Comparison of quasi-analytical solutions with stochastic results for steady gravity drainage
Timothy R. Green, David L. Freyberg
1995, Water Resources Research (31) 2201-2211
Anisotropy in large-scale unsaturated hydraulic conductivity of layered soils changes with the moisture state. Here, state-dependent anisotropy is computed under conditions of large-scale gravity drainage. Soils represented by Gardner's exponential function are perfectly stratified, periodic, and inclined. Analytical integration of Darcy’s law across each layer results in a system of...
Estimating 14C groundwater ages in a methanogenic aquifer
Ramon Aravena, Leonard I Wassenaar, Niel Plummer
1995, Water Resources Research (31) 2307-2317
This paper addresses the problem of 14C age dating of groundwaters in a confined regional aquifer affected by methanogenesis. Increasing CH4 concentrations along the groundwater flow system and 13C and 14C isotopic data for dissolved inorganic carbon, dissolved organic carbon, and CH4 clearly show the effect of methanogenesis on groundwater chemistry. Inverse reaction path modeling...
Combined use of groundwater dating, chemical, and isotopic analyses to resolve the history and fate of nitrate contamination in two agricultural watersheds, Atlantic coastal plain, Maryland
J.K. Böhlke, J. M. Denver
1995, Water Resources Research (31) 2319-2339
The history and fate of groundwater nitrate (NO3−) contamination were compared in 2 small adjacent agricultural watersheds in the Atlantic coastal plain by combined use of chronologic (CCl2F2, 3H), chemical (dissolved solids, gases), and isotopic (δ15N,δ13C, δ34S) analyses of recharging groundwaters, discharging groundwaters, and surface waters. The results demonstrate the interactive...
Sierra Nevada runoff into San Francisco Bay - Why has it come earlier recently?
M. D. Dettinger, D.R. Cayan, D. H. Peterson
1995, Newsletter of the Interagency Ecological Program for the Sacramento-San Joaquin Estuary (8) 1-3
By the time most of the Sierra Nevada snowpack has melted each summer, freshwater outflows from the Sacramento-San Joaquin Delta to San Francisco Bay are typically small, even after the wettest winters. These small delta outflows during the warm months (in comparison with the large flows of winter and spring)...
Hydrogeology and simulation of ground-water flow in the Eutaw-McShan aquifer and in the Tuscaloosa aquifer system in northeastern Mississippi
E. W. Strom, M. J. Mallory
1995, Water-Resources Investigations Report 94-4223
The Eutaw-McShan aquifer and Tuscaloosa aquifer system in northeastern Mississippi were investi- gated to better understand the hydrogeology and the ground-water flow in and between the aquifers. A numerical model was developed to simulate ground- water flow for prepumping and pumping conditions, and model simulatons projected the possible effects of...