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Page 6889, results 172201 - 172225

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Publication Extents

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Construction and use of special drawdown scales for use in prediction of water-level changes throughout heavily pumped areas
C.S. Conover, H.O. Reeder
1957, Open-File Report 57-24
Problem and Proposed Method of Solution Frequently the Theis nonequilibrium formula is use din the quantitative analyses that are part of many-ground-water investigations. The computations associated therewith may become quite involved and tedious, especially when dealing with predictions of the decline of water levels throughout large areas in which there are...
Surface water supply of eastern and central North Carolina
Edward B. Rice
1957, Open-File Report 57-96
None of the many factors that influence the economic growth of eastern and central North Carolina plays a more important role than water. Adequate water supply for municipal, rural domestic, industrial, and agricultural uses, is a basic need of any region....
Hydrology and water law: what is their future common ground?
Arthur M. Piper, Harold E. Thomas
1957, Open-File Report 57-90
We live in an age of social and economic evolution--evolution so deep reaching and rapid it constitutes ad revolution in numerous fields of human concern. Long-standing concepts of what is appropriate and orderly face drastic modification if they are to survive. To this situation the principles of applied hydrology and...
Development of ground water from the Carrizo sand and Wilcox group in Dimmit, Zavala, Maverick, Frio, Atacosa, Median, Bexar, Live Oak, McMullen, La Salle, and Webb Counties, Texas
E. A. Moulder
1957, Open-File Report 57-77
The development of ground water for irrigation from the Carrizo sand south and southwest of San Antonio, Tex., has increased rapidly during the past few years. Declining pumping water levels in irrigation wells, caused by increased withdrawals, have caused considerable concern among the residents of the area. In response, the...
A field method for the determination of calcium and magnesium in limestone and dolomite
Leonard Shapiro, Walter Wallace Brannock
1957, Open-File Report 57-99
The method is an adaptation of a procedure described by Betz and Noll1 in 1950. Calcium and magnesium are determined by visual titration using Versene (disodium ethylenediamine tetraacetate) with Murexide (ammonium purpurate) as the indicator for calcium and Eriochrome Black T as the indicator for magnesium....
Drainage area data for Alabama streams
J.S. Stallings, L.B. Peirce
1957, Open-File Report 57-106
The drainage area of a river basin is an important parameter in many engineering equations used for hydrologic design. It is not a parameter, however, that always requires precise measurement. Factors in the hydrologic cycle such as rainfall, runoff, transpiration, and infiltration cannot be measured nearly as closely as drainage...
Photogeologic maps of the Iris SE and Doyleville SW quadrangles, Saguache County, Colorado
Kathleen McQueen
1957, Trace Elements Memorandum 984
The Iris SE and Doyleville SW quadrangles, Saguache County, Colorado include part ot the Cochetopa mining district. Photogeologic maps of these quadrangles show the distribution of sedimentary rocks of Jurassic and Cretaceous age; precambrian granite, schist, and gneiss; and igneous rocks of Tertiary age. Sedimentary rocks lie on an...