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Page 4626, results 115626 - 115650

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A computer program incorporating Pitzer's equations for calculation of geochemical reactions in brines
Niel Plummer, D.L. Parkhurst, G.W. Fleming, S.A. Dunkle
1988, Water-Resources Investigations Report 88-4153
The program named PHRQPITZ is a computer code capable of making geochemical calculations in brines and other electrolyte solutions to high concentrations using the Pitzer virial-coefficient approach for activity-coefficient corrections. Reaction-modeling capabilities include calculation of (1) aqueous speciation and mineral-saturation index, (2) mineral solubility, (3) mixing and titration of aqueous...
Ground-water flow near two radioactive-waste-disposal areas at the Western New York Nuclear Service Center, Cattaraugus County, New York: Results of flow simulation
M. P. Bergeron, E. F. Bugliosi
1988, Water-Resources Investigations Report 86-4351
Two adjacent burial areas were excavated in a clay-rich till at a radioactive waste disposal site near West Valley in Cattaraugus County, N.Y.: (1) which contains mainly low-level radioactive wastes generated onsite by a nuclear fuel reprocessing plant, has been in operation since 1966; and (2) which contains commercial low-level...
Sediment sources in the Lake Tahoe Basin, California-Nevada; preliminary results of a four-year study, August 1983-September 1987
B. R. Hill, J.R. Hill, K.M. Nolan
1988, Open-File Report 88-333
Data were collected during a 4-yr study of sediment sources in four drainage basins tributary to Lake Tahoe, California-Nevada. The study areas include the Blackwood, General, Edgewood, and Logan House Creek basins. Data include changes in bank and bed positions at channel cross sections; results of stream-channel mapping; analyses of...
Iodine-129 in the Snake River Plain aquifer at the Idaho National Engineering Laboratory, Idaho
L. J. Mann, E.W. Chew, J.S. Morton, R.B. Randolph
1988, Water-Resources Investigations Report 88-4165
From 1953 to 1983, an estimated 0.01 to 0.136 Ci (curies)/year of iodine-129 were contained in wastewater generated by the ICPP (Idaho Chemical Processing Plant) at the Idaho National Engineering Laboratory. The wastewater was directly discharged to the Snake River Plain aquifer through a deep disposal well until February 9,...
International strategic minerals inventory summary report; titanium
R.R. Towner, J.M. Gray, L.M. Porter
1988, Circular 930-G
Ilmenite and rutile are currently the most important titanium-bearing minerals, although anatase may be important in the future. Both ilmenite and rutile occur in hard-rock and placer deposits, but at present all rutile production and about half of the ilmenite production are from placer deposits. Anatase occurs in laterite deposits...
Alternative sources of large seasonal ground-water supplies in the headwaters of the Susquehanna River basin, New York
A. D. Randall, D. S. Snavely, T.P. Holecek, R.M. Waller
1988, Water-Resources Investigations Report 85-4127
The northern divide of the Susquehanna River basin crosses 29 broad valleys that contain thick glacial deposits but are drained only by small headwater streams. Much groundwater could be withdrawn from sand and gravel deposits in these valleys with little immediate effect on streamflow. A digital model of the headwater...
Ground-water resources and simulation of flow in aquifers containing freshwater and seawater, Island County, Washington
D. B. Sapik, Gilbert C. Bortleson, B. W. Drost, M. A. Jones, E. A. Prych
1988, Water-Resources Investigations Report 87-4182
Aquifers in Island County, Washington, that are intruded by seawater from Puget Sound contain chloride concentrations that exceed 100 mg/L. Chloride concentrations exceeded 100 mg/L in 24 % of the wells that were drilled below sea level and sampled in August 1981, but most of the chloride concentrations did not...
Discharge ratings for control structures at McHenry Dam on the Fox River, Illinois
G. G. Fisk
1988, Water-Resources Investigations Report 87-4226
Twenty-three measurement of discharge were used to determine discharge ratings for the five adjustable sluice gates, spillway and fish ladder at McHenry Dam on the Fox River in Illinois. Discharge ratings were determined for free weir, free orifice, and submerged orifice flow regimes. Hydraulic conditions that identify flow regimes at...
Operating manual for the U.S. Geological Survey minimonitor, 1988 revised edition; punched-paper-tape model
James H. Ficken, Carl T. Scott
1988, Open-File Report 88-491
This manual describes the U.S. Geological Survey Minimonitor Water Quality Data Measuring and Recording System. Instructions for calibrating, servicing, maintaining, and operating the system are provided. The Survey Minimonitor is a battery-powered , multiparameter water quality monitoring instrument designed for field use. A watertight can containing signal conditioners is connected...