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Page 179, results 4451 - 4475

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An updated numerical simulation of the ground-water flow system for the Castle Lake debris dam, Mount St. Helens, Washington, and implications for dam stability against heave
Evelyn A. Roeloffs
1994, Water-Resources Investigations Report 94-4075
A numerical simulation of the ground-water flow system in the Castle Lake debris dam, calibrated to data from the 1991 and 1992 water years, was used to estimate factors of safety against heave and internal erosion. The Castle Lake debris dam, 5 miles northwest of the summit of Mount St....
Quality of surface and ground water in the White Creek and Mossy Creek watersheds, White County, Georgia, 1992-93
Michael F. Peck, Jerry W. Garrett
1994, Open-File Report 94-540
Surface- and ground-water quality data were collected and evaluated from streams and wells in the White Creek and Mossy Creek watersheds in White County, Georgia, during three sampling periods in 1992 and 1993, to identify stream reaches and wells affected by nonpoint-source contaminants. Livestock operations in these watersheds account for...
Selected nutrients in stormwater runoff from Davenport, Iowa, 1992
B.D. Schaap, K.J. Lucey
1994, Water-Resources Investigations Report 94-4130
Flow-weighted composite samples of stormwater runoff from areas of different land use in Davenport, Iowa, were collected in the summer and fall of 1992 and analyzed for selected nutrients. Annual constituent loads were estimated for the area drained by the Davenport storm-sewer network. In all cases, the regression-equation estimate of...
Physical characteristics of stream subbasins in the Lac qui Parle River basin, southwestern Minnesota and eastern South Dakota
D. L. Lorenz, C. A. Sanocki, Thomas A. Winterstein
1994, Open-File Report 93-46
Data describing the physical characteristics of stream subbasins upstream from selected points on streams in the Lac qui Parle River basin, located in southwestern Minnesota and eastern South Dakota, are presented in this report. The physical charac- teristics are the drainage area of the subbasin, the percentage area of the...
Tritium, stable isotopes, and nitrogen in flow from selected springs that discharge to the Snake River, Twin Falls-Hagerman area, Idaho, 1990-93
L. J. Mann, W. H. Low
1994, Water-Resources Investigations Report 94-4247
In 1990-93, water from 19 springs along the north side of the Snake River near Twin Falls and Hagerman contained from 9.2+0.6 to 78.4+5.1 picocuries per liter (pCi/L) of tritium. The springs were placed into three categories based on their locations and tritium concentrations: Category I was the upstream most...
Data on natural organic substances in dissolved, colloidal, suspended-silt and -clay, and bed-sediment phases in the Mississippi River and some of its tributaries, 1987-90
J.A. Leenheer, T.I. Noyes, P.A. Brown
1994, Water-Resources Investigations Report 93-4204
The Mississippi River and some of its tributaries were sampled for natural organic substances dissolved in water and in suspended and bed sediments during seven sampling cruises from 1987-90. The sampling cruises were made during different seasons, in the free-flowing reaches of the river from St. Louis, Missouri, to New...
Physical characteristics of stream subbasins in the Chippewa River basin, west-central Minnesota
Chris Sanocki, James R. Krumrie
1994, Open-File Report 94-488
Data that describe the physical characteristics of stream subbasins upstream from selected points on streams in the Chippewa River Basin, located in west-central Minnesota, are presented in this report The physical characteristics are the drainage area of the subbasin, the percentage area of the subbasin covered only by lakes, the...
Hydrologic data for the alluvium and terrace deposits of the Cimarron River from Freedom to Guthrie, Oklahoma
Gregory P. Adams, D. L. Bergman, D.J. Pruitt, J.E. May, J. K. Kurklin
1994, Open-File Report 94-504
Ground water in the Quaternary alluvium and terrace deposits associated with the Cimarron River in northwestern Oklahoma is used extensively for irrigation, municipal, stock, and domestic supplies. The data in this report were collected as part of an investigation to provide State water managers with the quantitative knowledge necessary to...
Ground-water flow and quality, and geochemical processes, in Indian Wells Valley, Kern, Inyo, and San Bernardino counties, California, 1987-88
Charles Berenbrock, R. A. Schroeder
1994, Water-Resources Investigations Report 93-4003
An existing water-quality data base for the 300- square-mile Indian Wells Valley was updated by means of chemical and isotopic analysis of ground water. The wide range in measured concentrations of major ions and of minor constituents such as fluoride, borate, nitrate, manganese, and iron is attributed to geochemical reactions...
Cyclic injection, storage, and withdrawal of heated water in a sandstone aquifer at St. Paul, Minnesota: Analysis of thermal data and nonisothermal modeling of short-term test cycles
Robert T. Miller, G. N. Delin
1994, Open-File Report 93-435
In May 1980, the University of Minnesota began a project to evaluate the feasibility of storing heated water (150 degrees Celsius) in the Franconia-Ironton-Galesville aquifer (180 to 240 meters below land surface) and later recovering it for space heating. The University's steam-generation facilities supplied high-temperature water for injection. The Aquifer...
Summary and interpretation of dye-tracer tests to investigate the hydraulic connection of fractures at a ridge-and-valley-wall site, near Fishtrap Lake, Pike County, Kentucky
Charles J. Taylor
1994, Water-Resources Investigations Report 94-4189
Dye-tracer tests were done during 1985-92 to investigate the hydraulic connection between fractures in Pennsylvanian coal-bearing strata at a ridge-and-valley-wall site near Fishtrap Lake, Pike County, Ky. Fluorescent dye was injected into a core hole penetrating near-surface and mining-induced fractures near the crest of the ridge. The rate and direction...
Physical, chemical, and biological characteristics of Pueblo Reservoir, Colorado, 1985-89
Michael E. Lewis, Patrick Edelmann
1994, Water-Resources Investigations Report 94-4097
Physical, chemical, and biological characteristics of Pueblo Reservoir are described on the basis of data collected from spring 1985 through fall 1989. Also included are discussions of water quality of the upper Arkansas River Basin and the reservoir as they relate to reservoir operations. Pueblo Reservoir is a multipurpose, main-stem...
Investigation of bridge scour at selected sites on Missouri streams
Lawrence D. Becker
1994, Water-Resources Investigations Report 94-4200
Scour around bridge piers is a major concern in the design of a new bridge or the evaluation of the structural stability of an existing bridge. An adequate estimation of potential scour at bridge piers is essential to effective design, construction, and maintenance of hydraulic structures. Reasonably accurate estimates of...
Development and application of generalized-least-squares regression models to estimate low-flow duration discharges in Massachusetts
Kernell G. Ries III
1994, Water-Resources Investigations Report 94-4155
Physically based mathematical models were developed by use of generalized-least-squares regression analyses to estimate long-term 95-, 98-, and 99-percent duration discharges for ungaged streams in Massachusetts. Duration discharges for 61 sites were used in the recession analyses; 37 sites were streamflow-gaging stations and 24 sites were low-flow partial-record stations. The...
Analysis of data from test-well sites along the downdip limit of freshwater in the Edwards Aquifer, San Antonio, Texas, 1985-87
G.E. Groschen
1994, Water-Resources Investigations Report 93-4100
Many researchers have studied the downdip limit of freshwater in the Edwards aquifer or various aspects of the saline-water zone and its relation to the freshwater zone. These studies were summarized and used to synthesize a consistent hydrologic and geochemical framework from which to interpret data from field studies. The...
Surface-water-quality assessment of the Kentucky River Basin, Kentucky: Fixed-station network and selected water-quality data, April 1987 through August 1991
M. S. Griffin, G. R. Martin, K. D. White
1994, Water-Resources Investigations Report 94-4029
This report describes selected data-collection activities and the associated data collected during the Kentucky River Basin pilot study of the U.S. Geological Survey's National Water-Quality Assessment Program. The data are intended to provide a nationally consistent description and improved understanding of current water quality in the basin. The data were...
Identification of potential public water-supply areas of the Cape Cod aquifer, Massachusetts, using a geographic information system
S.L. Harris, P. A. Steeves
1994, Water-Resources Investigations Report 94-4156
Potential public water-supply areas of the Cape Cod aquifer, Massachusetts, were identified using a geographic information system (GIS) to aid regional and local ground-water resource management efforts. Criteria were selected to identify potential areas on the basis of data restrictions in addition to State requirements for siting new public water-...
Identification, characterization, and analysis of hydraulically conductive fractures in granitic basement rocks, Millville, Massachusetts
Frederick L. Paillet, P.W. Ollila
1994, Water-Resources Investigations Report 94-4185
A suite of geophysical logs designed to identify and characterize fractures and water production in fractures was run in six bedrock boreholes at a ground-water contamination site near the towns of Millville and Uxbridge in south-central Massachusetts. The geophysical logs used in this study included conventional gamma, single-point resistance, borehole...
Hydrogeology and simulation of ground-water flow at U.S. Marine Corps Air Station, Cherry Point, North Carolina, 1987-90
J. L. Eimers, C. C. Daniel III, R. W. Coble
1994, Water-Resources Investigations Report 94-4186
Geophysical and lithologic well-log data from 30 wells and chloride data, and water-level data from oil-test wells, supply wells, and observation wells were evaluated to define the hydrogeologic framework at the U.S. Marine Corps Air Station, Cherry Point, North Carolina. Elements of the hydrogeologic framework important to this study include...
Flood data for the Sacramento River and Butte Basin, Sacramento Valley, California, 1980-90
Jerry G. Harmon
1994, Open-File Report 93-68
Floodflows and peak states of floods were measured and channel cross sections were surveyed at sites along the Sacramento River and in Butte Basin, Sacramento Valley, California, during 1980-90 to document magnitudes of flooding and channel changes. The study reach extends from rivermile 200 near Hamilton City to rivermile 134...
Comparison of vertical discretization techniques in finite-difference models of ground-water flow; example from a hypothetical New England setting
Philip T. Harte
1994, Open-File Report 94-343
Proper discretization of a ground-water-flow field is necessary for the accurate simulation of ground-water flow by models. Although discretiza- tion guidelines are available to ensure numerical stability, current guidelines arc flexible enough (particularly in vertical discretization) to allow for some ambiguity of model results. Testing of two common types of...
Yields of selected constituents in base flow and stormflow in urban watersheds of Jefferson County, Kentucky, 1988-92
R. D. Evaldi, B.L. Moore
1994, Water-Resources Investigations Report 94-4065
Mean annual base-flow and stormflow yields of selected water-quality constituents from urban watersheds of Jefferson County, Kentucky, were estimated for 1988-92 to help describe the pro portions of constituent transport from point and nonpoint sources. Yield estimates were based on streamflow and water-quality data collected from a network of 25...