Lithologic description of sediment cores from Grass Lake, Siskiyou County, California
David P. Adam, Hugh J. Rieck, M.L. McGann, K.H. Schiller, A.M. Sarna-Wojcicki
1994, Open-File Report 94-651
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...
Reconnaissance investigations of potential ground-water and sediment contamination at three former underground storage tank locations, Fort Jackson, South Carolina, 1994
J. F. Robertson, Douglas D. Nagle, Liesl C. Rhodes
1994, Open-File Report 94-486
Investigations to provide initial qualitative delineation of petroleum hydrocarbon contamination at three former underground storage tank locations at Fort Jackson, South Carolina, were made during March 1994. Ground-water and sediment samples were collected using direct-push technology and analyzed on-site with a gas chromatograph, which provided real-time, semi-quantitative data. In addition,...
Coccolith correlation of Late Cretaceous Point Loma Formation at La Jolla and Carlsbad, San Diego County, California
David Bukry
1994, Open-File Report 94-678
Geochemical data and sample locality maps for stream-sediment, heavy-mineral-concentrate, mill tailing, water, and precipitate samples collected in and around the Holden mine, Chelan County, Washington
James E. Kilburn, C.G. Whitney, W. M. d’Angelo, D.L. Fey, R.T. Hopkins, A. L. Meier, J. M. Motooka, B. H. Roushey, S. J. Sutley
1994, Open-File Report 94-680-A
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...
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...
Nationwide summary of US Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites, 1993
M.E. Jennings, W.O. Thomas Jr., H. C. Riggs
1994, Water-Resources Investigations Report 94-4002
For many years, the U.S. Geological Survey (USGS) has been involved in the development of regional regression equations for estimating flood magnitude and frequency at ungaged sites. These regression equations are used to transfer flood characteristics from gaged to ungaged sites through the use of watershed and climatic characteristics as...
Water-level changes in the High Plains aquifer — Predevelopment to 1993
J. T. Dugan, D. A. Cox
1994, Water-Resources Investigations Report 94-4157
Water-level change in the High Plains aquifer underlying parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming results from differences in recharge from precipitation and ground-water withdrawals for irrigation. From the beginning of irrigation development (1940) to 1980, water levels declined in several areas, and exceeded...
Ground-water and precipitation data for South Carolina, 1990
Paul Conrads, Kathy H. Jones, Whitney J. Stringfield
1994, Open-File Report 94-487
Continuous water-level data collected from 53 wells in South Carolina during 1990 provide the basic data for this report. Hydrographs are presented for selected wells to illustrate the effects that changes in ground-water recharge and artificial ground-water discharge have had on the ground-water reservoirs in the State. Daily mean water...
Mineral deposit modeling using components for complex mineral deposits; mixed base- and precious-metal veins of the Idaho Batholith, Idaho
James D. Bliss
1994, Open-File Report 94-690
Terranes and overlap sequences in the Central and Southern Appalachians, an expanded explanation for part of the Circum-Atlantic terrane map
J. Wright Horton Jr., Avery Ala Drake, Douglas W. Rankin
1994, Open-File Report 94-682
Radionuclides, stable isotopes, inorganic constituents, and organic compounds in water from selected wells and springs from the southern boundary of the Idaho National Engineering Laboratory to the Hagerman area, Idaho, 1993
Roy C. Bartholomay, Daniel D. Edwards, Linford J. Campbell
1994, Open-File Report 94-503
The U.S. Geological Survey and the Idaho Department of Water Resources, in response to a request from the U.S. Department of Energy, sampled 19 sites as part of a long-term project to monitor water quality of the Snake River Plain aquifer from the southern boundary of the Idaho National Engineering...
Users manual for an expert system (HSPEXP) for calibration of the hydrological simulation program; Fortran
A.M. Lumb, R.B. McCammon, J.L. Kittle Jr.
1994, Water-Resources Investigations Report 94-4168
Expert system software was developed to assist less experienced modelers with calibration of a watershed model and to facilitate the interaction between the modeler and the modeling process not provided by mathematical optimization. A prototype was developed with artificial intelligence software tools, a knowledge engineer, and two domain experts. The...
Subsurface investigation for liquefaction analysis and piezometer calibration at Treasure Island Naval Station, California
Michael J. Bennett
1994, Open-File Report 94-709
Between January and March, 1994, a drilling program was conducted at the Treasure Island Naval Station to evaluate the liquefaction resistance of soils that did and did not liquefy during the Loma Prieta, California, earthquake of October 17, 1989. A second goal of this drilling program was to test and...
Simulations of flow in the Edwards-Trinity aquifer system and contiguous hydraulically connected units, west-central Texas
E. L. Kuniansky, K. Q. Holligan
1994, Water-Resources Investigations Report 93-4039
The Edwards-Trinity aquifer system is currently (1993) being studied as part of the Regional Aquifer-Systems Analysis program. A major goal of the project is to understand and describe the regional ground-water flow system. A finite-element model for simulating two-dimensional steady-state ground-water flow was applied to the major aquifers of the...
Descriptions and elevations for first order, Class II leveling bench marks in the vicinity of Medicine Lake, California
Kenneth M. Yamashita, W.P. Kaiser
1994, Open-File Report 94-693
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...
Assessment of concentrations of trace elements in ground water and soil at the Small-Arms Firing Range, Shaw Air Force Base, South Carolina
J. E. Landmeyer
1994, Water-Resources Investigations Report 94-4209
Ground-water samples were collected from four shallow water-table aquifer observation wells beneath the Small-Arms Firing Range study area at Shaw Air Force Base. Water-chemistry analyses indicated that total lead concentrations in shallow ground water beneath the study area do not exceed the U.S. Environmental Protection Agency maximum contaminant level established...
National Water-Quality Assessment Program; Ozark Plateaus surface-water quality study
Suzanne R. Femmer, Robert L. Joseph
1994, Fact Sheet 015-94
Hydrologic, water-quality, and meteorologic data from selected sites in the Upper Catawba River Basin, North Carolina, January 1993 through March 1994
M.L. Jaynes
1994, Open-File Report 94-509
Hydrologic, water-quality, and meteorologic data were collected from January 1993 through March 1994 as part of a water-quality investigation of the Upper Catawba River Basin, North Carolina. Specific objectives of the investigation were to characterize the water quality of Rhodhiss Lake, Lake Hickory, and three tributary streams, and to calibrate...
Report of the Interagency biological methods workshop
Martin E. Gurtz, Thomas A. Muir
1994, Open-File Report 94-490
The U.S. Geological Survey hosted the Interagency Biological Methods Workshop in Reston, Virginia, during June 22-23, 1993. The purposes of the workshop were to (1) promote better communication among Federal agencies that are using or developing biological methods in water-quality assessment programs for streams and rivers, and (2) facilitate the...
Influence of evaporation, ground water, and uncertainty in the hydrologic budget of Lake Lucerne, Florida, October 1985-September 1986
T. M. Lee, Amy Swancar
1994, Open-File Report 93-26
Water-quality reconnaissance and streamflow gain and loss of Yocum Creek basin, Carroll County, Arkansas
Robert L. Joseph, W. Reed Green
1994, Open-File Report 94-537
A study of the Yocum Creek Basin conducted between July 27 and August 3, 1993, described the surface- and ground-water quality of the basin and the streamflow gain and loss. Water samples were collected from 12 sites on the main stem of Yocum Creek and 2 tributaries during periods...
Water wells on St. Croix, U.S. Virgin Islands
Bruce Green, Gregory Cherry
1994, Open-File Report 91-503
This report is a compilation of well-inventory data collected from December 1988 to September 1990 on St. Croix, U.S. Virgin Islands from 634 wells. The report includes well locations on 1982, 7.5 minute series, USGS topographic maps, which are published to scale, and tables of selected well data. The report...