Uranium series disequilibrium in a young surficial uranium deposit, northeastern Washington, U.S.A.
R. A. Zielinski, C. A. Bush, J.N. Rosholt
1986, Applied Geochemistry (1) 503-511
A recently discovered ore-grade accumulation of U in organic-rich sediments of late Quaternary age provides an opportunity for studying the early association of U, U-daughters, and organic matter in a natural setting. The U occurs in valley-fill sediments of peat, peaty clay, silt, and sand along the north fork of...
Benthic community of the Savannah River below a peaking hydropower station
Patrick L. Hudson, S. Jerrine Nichols
1986, Journal of the Elisha Mitchell Scientific Society (102) 107-121
The Savannah River below Hartwell Dam, on the South Carolina-Georgia border, contains at least 206 benthic invertebrate taxa, even though this tailwater undergoes substantial daily fluctuations in water flow, temperature, and dissolved oxygen. Oligochaetes, chironomids, and amphipods dominate the community immediately below the dam. Farther downstream, larger organisms (i.e., Ephemeroptera,...
Spring and summer survival of female mallards from northcentral Minnesota
Ronald E. Kirby, Lewis M. Cowardin
1986, Journal of Wildlife Management (50) 38-43
Seasonal survival of 109 adult female mallards (Anas platyrhynchos) fitted with radio transmitters was evaluated in northcentral Minnesota during 1968-74. Survival rates for the 169-day breeding and postbreeding period were: 1.0 during nest initiation (36 days), 0.798 during incubation (28 days), 0.943 during brood rearing (51 days), 0.947 during molt...
Environmental fate of mercury discharged into the upper Wisconsin River
R.G. Rada, J.E. Findley, J.G. Wiener
1986, Water, Air, & Soil Pollution (29) 57-76
The authors studied the distribution of Hg in sediments, fish, and crayfish in a 60 km reach of the Upper Wisconsin River that formerly received Hg in discharges from pulp and paper mills. The most heavily contaminated strata of sediments were deposited during the 1950s and early 1960s...
Estimation of distributional parameters for censored trace level water quality data: 1. Estimation techniques
Robert J. Gilliom, Dennis R. Helsel
1986, Water Resources Research (22) 135-146
A recurring difficulty encountered in investigations of many metals and organic contaminants in ambient waters is that a substantial portion of water sample concentrations are below limits of detection established by analytical laboratories. Several methods were evaluated for estimating distributional parameters for such censored data sets using only uncensored observations....
An integrated system for treating nitrogen supersaturated water
V. K. Dawson, L. L. Marking
1986, Progressive Fish-Culturist (48) 281-284
Groundwater is commonly supersaturated with nitrogen and must be treated before it is used for culturing fish–especially sensitive species such as lake trout (Salvelinus namaycush) and Atlantic salmon (Salmo salar). We treated water with an integrated system that passed water through a packed column aerator, then through a vacuum degasser,...
A fan dam for Tulare Lake, California, and implications for the Wisconsin glacial history of the Sierra Nevada
B.F. Atwater
1986, Geological Society of America Bulletin (97) 97-109
Historic fluctuations and late Quaternary deposits of Tulare Lake, in the southern San Joaquin Valley, indicate that maximum lake size has depended chiefly on the height of a frequently overtopped spillway. This dependence gives Tulare Lake a double record of paleoclimate. Climate in...
Design and cost analysis of rapid aquifer restoration systems using flow simulation and quadratic programming
L.J. Lefkoff, S.M. Gorelick
1986, Groundwater (24) 777-790
Detailed two-dimensional flow simulation of a complex ground-water system is combined with quadratic and linear programming to evaluate design alternatives for rapid aquifer restoration. The design model ensures that a contaminant plume is removed and treated within four years at the least possible cost. Rapid restoration is accomplished by maintaining...
EFFECTS OF ARTIFICIAL RECHARGE ON GROUND-WATER QUALITY, LONG ISLAND, NEW YORK.
Brian J. Schneider, Henry F. H. Ku, Edward T. Oaksford
1986, Conference Paper
Artificial-recharge experiments were conducted at East Meadow in central Nassau County, Long Island, N. Y. , from October 1982 through January 1984, to evaluate the degree of ground-water mounding and chemical effects of artificially replenishing the ground-water system with tertiary-treated wastewater. Reclaimed water was provided by the Cedar Creek wastewater-treatment...
Effects of rearing density on growth and survival of lake trout
R. W. Soderberg, W. F. Krise
1986, Progressive Fish-Culturist (48) 30-32
Lake trout (Salvelinus namaycush) were reared at density indices (allowable density in pounds/cubic foot divided by fish length in inches) of 0.25, 0.50, 1.0, and 2.0 in cages suspended in circular tanks. Water flow rates were such that dissolved oxygen remained above 8 ppm within all the cages. Thus treatment...
Loss of lampricides by adsorption on bottom sediments
V. K. Dawson, D.A. Johnson, J. L. Allen
1986, Canadian Journal of Fisheries and Aquatic Sciences (43) 1515-1520
Problems have been encountered in maintaining effective concentrations of the lampricides 3-trifluoromethyl-4-nitrophenol (TFM) and 5,2a??-dichloro-4a??-nitrosalicylanilide (Bayer 73) during treatments of certain Great Lakes tributaries. Concentrations of Bayer 73 decreased by more than 80% in a portion of the Ford River, Michigan, during treatment in 1980. Adsorption of Bayer 73 on...
Computer program calculation of gas supersaturation in water
V. K. Dawson
1986, Progressive Fish-Culturist (48) 142-146
A short computer program, written in BASIC for the Apple IIe or IBM PC computer, efficiently performs all the calculations required to determine gas pressure and percent saturation values for water. Input for the program is limited to empirical determinations of barometric pressure, water temperature, differential dissolved gas pressures, dissolved...
Hydrogeology and ground-water quality of Lannon-Sussex area, northeastern Waukesha County, Wisconsin
R. D. Cotter
1986, Water-Resources Investigations Report 84-4213
The Silurian dolomite aquifer in the Lannon-Sussex area of southeastern Wisconsin is overlain by glacial deposits, but is within 8 ft of the land surface over 15% of the study area. The proximity of the dolomite aquifer to the land surface makes it susceptible to contamination from man 's activities....
Solubility relations in the system potassium chloride-ferrous chloride-water between 25 and 75.degree.C at 1 atm
I.-M. Chou, L.D. Phan
1986, Journal of Chemical and Engineering Data (31) 154-156
Solubility relations in the ternary system KCl-FeCl2-H2O have been determined by means of the visual polythermal method at 1 atm from 18 to 75??C along 10 composition lines. Solubilities of sylvite were measured along five composition lines defined by mixing KCl with five aqueous FeCl2 solutions containing 10, 20, 30,...
Geohydrology of the Lloyd aquifer, Long Island, New York
M. S. Garber
1986, Water-Resources Investigations Report 85-4159
The Lloyd aquifer contains only about 9% of the water stored in Long Island 's groundwater system but is the only source of potable water for several communities near the north and south shores. The Lloyd aquifer is virtually untapped throughout most of central Long Island because current legal restrictions...
Beatty, Nevada: A section in U.S. Geological Survey research in radioactive waste disposal - Fiscal years 1983, 1984, and 1985 (WRI 87-4009)
Jeffrey M. Fischer, William D. Nichols
G.A. Dinwiddie, N.J. Trask, editor(s)
1986, Report, U.S. Geological Survey research in radioactive waste disposal - Fiscal years 1983, 1984, and 1985 (WRI 87-4009)
A commercial low-level radioactive-waste disposal site has been operating near Beatty, Nevada, about 150 km northwest of Las Vegas, since 1962. The 32-ha site is situated in a desolate region of the Amargosa River Valley, sometimes referred to as the Amargosa Desert. Average annual precipitation is only about 114 mm....
Variability in base streamflow and water quality of streams and springs in Otter and Rosebud Creek basins, southeastern Montana
J. H. Lambing, R. F. Ferreira
1986, Water-Resources Investigations Report 85-4302
The results of three base-flow studies conducted on Otter and Rosebud Creeks during 1977, 1978, and 1983 are summarized and compared to assess the variability of base-flow magnitude and water quality during years of widely different precipitation. Chemical analyses for springs in these basins also are presented to provide and...
A sublittoral population of Pleurophycus gardneri Setchell and Saunders 1900 (Phaeophyceae: Laminariaceae) in central California
Glenn R. VanBlaricom, Daniel C. Reed, Christopher Harrold, James L. Bodkin
1986, Bulletin of the Southern California Academy of Sciences (85) 120-122
Published distributional records for the stipitate kelp Pleurophycus gardneri Setchell and Saunders 1900 (Phaeophyceae: Laminariaceae) indicae a geographic range from Montague Island (59°58’N, 147°22W), Alaska to Fort Bragg (39°27’N, 123°47’W), California (Druehl 1969, 1970; Kjeldsen 1972). P. gardneri is found primarily in rocky intertidal and shallow subtidal locations (Scagel 1967;...
Limitations in the use of commercial humic acids in water and soil research
Ronald L. Malcolm, P. MacCarthy
1986, Environmental Science & Technology (20) 904-911
Seven samples of commercial "humic acids", purchased from five different suppliers, were studied, and their characteristics were compared with humic and fulvic acids isolated from streams, soils, peat, leonardite, and a dopplerite sample. Cross-polarization and magic-angle spinning 13C NMR spectroscopy clearly shows pronounced differences between the commercial materials and all...
RELATION BETWEEN SURFACE-WATER QUALITY AND THE COMPOSITION OF COAL IN PIKE COUNTY, KENTUCKY.
Jay Kiesler
1986, Conference Paper, University of Kentucky, Office of Engineering Services, (Bulletin) UKY BU
The quality of surface water in Pike County, Kentucky, seems to reflect the composition of coals in the county. Groundwater acquires mineral concentration characteristics of the rocks through which it moves. When groundwater is discharged to streams the mineral concentrations in streams, especially during low flow periods, are characteristic of...
Effect of ground-water recharge on configuration of the water table beneath sand dunes and on seepage in lakes in the sandhills of Nebraska, U.S.A.
T. C. Winter
1986, Journal of Hydrology (86) 221-237
Analysis of water-level fluctuations in about 30 observation wells and 5 lakes in the Crescent Lake National Wildlife Refuge in the sandhills of Nebraska indicates water-table configuration beneath sand dunes in this area varies considerably, depending on the configuration of the topography of the dunes. If the topography of an...
Ground-water flow in low permeability environments
Christopher E. Neuzil
1986, Water Resources Research (22) 1163-1195
Certain geologic media are known to have small permeability; subsurface environments composed of these media and lacking well developed secondary permeability have groundwater flow sytems with many distinctive characteristics. Moreover, groundwater flow in these environments appears to influence the evolution of certain hydrologic, geologic, and geochemical systems, may affect the...
Nonlinear-regression groundwater flow modeling of a deep regional aquifer system
Richard L. Cooley, Leonard F. Konikow, Richard L. Naff
1986, Water Resources Research (22) 1759-1778
A nonlinear regression groundwater flow model, based on a Galerkin finite-element discretization, was used to analyze steady state two-dimensional groundwater flow in the areally extensive Madison aquifer in a 75,000 mi2 area of the Northern Great Plains. Regression parameters estimated include intrinsic permeabilities of the main aquifer and separate lineament zones,...
Isolation and detection of Giardia cysts from water using direct immunofluorescence
Stephen K. Sorenson, John L. Riggs, Peter D. Dileanis, Thomas J. Suk
1986, Water Resources Bulletin (22) 843-845
A water‐sampling apparatus used for the isolation and detection of Giardiacysts in water has been designed and tested. The sampling apparatus uses one of a variety of pumps or waterline pressure to move water through a filter. Two of the optional pumps are lightweight enough to make the apparatus portable and...
Geochemical investigations of selected Eastern United States watersheds affected by acid deposition
Owen P. Bricker
1986, Journal of the Geological Society (143) 621-626
The effects of acid deposition on surface waters in eastern United States watersheds having similar size, physiography, climate and land use are related to the composition of the underlying bedrock. Watersheds developed on greenstone, calcareous shale, sandstone, granite, and schist differ in their ability to neutralize acid deposition....
