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165549 results.

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Page 5872, results 146776 - 146800

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Summary of hydrologic and physical properties of rock and soil materials, as analyzed by the hydrologic laboratory of the U.S. Geological Survey, 1948-60
D. A. Morris, A.I. Johnson
1967, Water Supply Paper 1839-D
The Hydrologic Laboratory was established in 1948 to serve as the central testing laboratory for the Water Resources Division of the U.S. Geological Survey. Since then, thousands of samples of rock and soil materials have been analyzed in the laboratory. Analytical data on samples from 42 States and for the...
Geology and ground-water resources of Laramie County, Wyoming
Marlin E. Lowry, Marvin A. Crist, John R. Tilstra
1967, Water Supply Paper 1834
Laramie County, an area of 2,709 square miles, is in the southeast corner of Wyoming. Rocks exposed there range in age from Precambrian to Recent. The most extensive aquifers in the county are the White River Formation of Oligocene age, which is as much as 500 feet thick and consists...
Availability of ground water in York County, Nebraska
Charles Franklin Keech, V. H. Dreeszen, Philip A. Emery
1967, Water Supply Paper 1839-F
York County, an area of 575 square miles, is situated on an upland plain in southeast Nebraska. Although tributaries of the Big Blue River have eroded valleys into this plain, much of the original surface is still intact and is characterized by broad shallow undrained depressions. The economy is based...
Specific yield: compilation of specific yields for various materials
A.I. Johnson
1967, Water Supply Paper 1662-D
Specific yield is defined as the ratio of (1) the volume of water that a saturated rock or soil will yield by gravity to (2) the total volume of the rock or soft. Specific yield is usually expressed as a percentage. The value is not definitive, because the quantity of...
Reconnaissance of the chemical quality of surface waters of the Neches River basin, Texas
Leon S. Hughes, Donald K. Leifeste
1967, Water Supply Paper 1839-A
The kinds and quantities of minerals dissolved in the surface water of the Neches River basin result from such environmental factors as geology, streamflow patterns and characteristics, and industrial influences. As a result of high rainfall in the basin, much of the readily soluble material has been leached from the...
Evaluation of seepage from Chester Morse Lake and Masonry Pool, King County, Washington
F.T. Hidaka, Arthur Angus Garrett
1967, Water Supply Paper 1839-J
Hydrologic data collected in the Cedar and Snoqualmie River basins on the west slope of the Cascade Range have been analyzed to determine the amount of water lost by seepage from Chester Morse Lake and Masonry Pool and the. consequent gain by seepage to the Cedar and South Fork Snoqualmie...
Form and stability of aluminum hydroxide complexes in dilute solution
John David Hem, Charles Elmer Roberson
1967, Water Supply Paper 1827-A
Laboratory studies of solutions 4.53 x 10 -4 to 4.5 x 10 -5 molal (12.2-1.2 ppm) in aluminum, in 0.01 molal sodium perchlorate, were conducted to obtain information as to the probable behavior of aluminum in natural water. When the solutions were brought to pH 7.5-9.5 and allowed to stand...
Ground-water hydrology of the Punjab region of West Pakistan, with emphasis on problems caused by canal irrigation
D.W. Greenman, W.V. Swarzenski, G.D. Bennett
1967, Water Supply Paper 1608-H
Rising water tables and the salinization of land as the result of canal irrigation threaten the agricultural economy of the Punjab. Since 1954 the Water and Soils Investigation Division of the West Pakistan Water and Power Development Authority has inventoried the water and soils resources of the Punjab and investigated...
Determination of phenoxy acid herbicides in water by electron-capture and microcoulometric gas chromatography
D.F. Goerlitz, William L. Lamar
1967, Water Supply Paper 1817-C
A sensitive gas chromatographic method using microcoulometric titration and electron-capture detection for the analysis of 2,4-D, silvex, 2,4,5-T, and other phenoxy acid herbicides in water is described. The herbicides are extracted from unfiltered water samples (800-1,000 ml) by use of ethyl ether ; then the herbicides are concentrated and esterilied....
Water resources of Jackson and Independence Counties, Arkansas
Donald R. Albin, Marion S. Hines, John W. Stephens
1967, Water Supply Paper 1839-G
The present (1965) water use in Jackson and Independence Counties is about 55.6 million gallons per day, and quantities sufficient for any foreseeable use are available. Supplies for the large-scale uses--municipal, industrial, and irrigation--can best be obtained from wells in the Coastal Plain and from streams in the highlands....
Definition of stage-discharge relation in natural channels by step-backwater analysis
James F. Bailey, H.A. Ray
1967, Water Supply Paper 1869-A
The step-backwater method was investigated as a technique for defining the upper part of stage-discharge relation in a natural channel. State-discharge relations at 28 sites were computed by using this technique and compared with corresponding stage-discharge relations defined by current-meter measurements. In general, the agreement is remarkably good, and the...
Roughness characteristics of natural channels
Harry Hawthorne Barnes
1967, Water Supply Paper 1849
Color photographs and descriptive data are presented for 50 stream channels for which roughness coefficients have been determined. All hydraulic computations involving flow in open channels require an evaluation of the roughness characteristics of the channel. In the absence of a satisfactory quantitative procedure this evaluation remains chiefly an art....
Analysis of aquifer tests in the Punjab region of West Pakistan
Gordon D. Bennett, Ata-Ur-Rehman, Ijaz Ahmed Sheikh, Sabire Alr
1967, Water Supply Paper 1608-G
The results of 141 pumping tests in the Punjab Plain of West Pakistan are reported. Methods of test analysis are described in detail, and an outline of the theory underlying these methods is given. The lateral permeability of the screened interval is given for all tests; the specific yield of...
Annual variations in chemical composition of atmospheric precipitation, eastern North Carolina and southeastern Virginia
Donald W. Fisher
1967, Water Supply Paper 1535-M
A 2-year study of precipitation composition over eastern North Carolina and southeastern Virginia has been completed. Chemical analyses were made of the major ions in monthly rainfall samples from each of 12 sampling locations. Areal and seasonal distributions were determined for chloride, calcium, magnesium, sodium, potassium, sulfate, and nitrate. Annual...
Ground-water conditions and geologic reconnaissance of the Upper Sevier River basin, Utah
Carl H. Carpenter, Gerald B. Robinson, Louis Jay Bjorklund
1967, Water Supply Paper 1836
The upper Sevier River basin is in south-central Utah and includes an area of about 2,400 .square miles of high plateaus and valleys. It comprises the entire Sevier River drainage basin above Kingston, including the East Fork Sevier River and its tributaries. The basin was investigated to determine general ground-water...