Potential for pollution of the Upper Floridan aquifer from five sinkholes and an internally drained basin in west-central Florida
J.T. Trommer
1987, Water-Resources Investigations Report 87-4013
Sinkholes are natural and common geologic features in west-central Florida, which is underlain by water soluble limestone deposits. Dissolution of these deposits is the fundamental cause of sinkhole development. Sinkholes and other karst features are more pronounced in the northern part of the study area, but sinkhole activity has occurred...
Reconnaissance of geohydrologic areas and 1981 low-flow conditions, Withlacoochee River basin, southwest Florida Water Management District
J. O. Kimrey, Warren Anderson
1987, Water-Resources Investigations Report 86-4203
The Withlacoochee River Basin of the Southwest Florida Water Management District is a management area of about 2030 sq mi in west-central Florida containing large reserves of potable water in the Upper Floridan aquifer. Results of reconnaissance test drilling indicate that the Upper Floridan aquifer may be treated as an...
Geologic map of the southern Pine Valley area, Beaver and Iron counties, Utah
M. G. Best, H. T. Morris, R. W. Kopf, J. D. Keith
1987, IMAP 1794
Habitat Suitability Index Models: Barred owl
Arthur W. Allen
1987, FWS/OBS 82/10.143
A review and synthesis of existing information were used to develop a Habitat Suitability Index (HSI) model for the barred owl (Strix varia). The model consolidates habitat use information into a framework appropriate for field application, and is scaled to produce an index between 0.0 (unsuitable habitat) to 1.0 (optimum...
Water resources of the Zuni tribal lands, McKinley and Cibola Counties, New Mexico
Brennon R. Orr
1987, Water Supply Paper 2227
An evaluation of the water resources of the Zuni tribal lands in west-central New Mexico was made to determine the yield, variability, and quality of water available to the Pueblo of Zuni. This study is needed to aid in orderly development of these resources. Rocks of Permian to Quaternary age...
Estimates of average annual tributary inflow to the lower Colorado River, Hoover Dam to Mexico
Sandra J. Owen-Joyce
1987, Water-Resources Investigations Report 87-4078
Estimates of tributary inflow by basin or area and by surface water or groundwater are presented in this report and itemized by subreaches in tabular form. Total estimated average annual tributary inflow to the Colorado River between Hoover Dam and Mexico, excluding the measured tributaries, is 96,000 acre-ft or about...
Field surveying and topographic mapping in Alaska: 1947-83
Robert C. Foley
1987, Circular 991
The U.S. Geological Survey's earliest presence in Alaska dates back to 1889. A decade later, topographic mapping became an integral part of the Geological Survey's Alaska program, mostly as reconnaissance-type mapping and special-purpose mapping of specific sites. It was not until after World War II that the Survey's Alaska topographic...
Hydrogeology of the Cambrian-Ordovician aquifer system at a test well in northeastern Illinois
J.R. Nicholas, M.G. Sherrill, H. L. Young
1987, Water-Resources Investigations Report 84-4165
A 3,475-ft-deep test well was drilled in northeastern Illinois near Lake Michigan and the Illinois-Wisconsin State line as part of a regional hydrologic study of the Cambrian-Ordovician aquifer. The well penetrates the Cambrian-Ordovician aquifer system and 40 ft of Precambrian granite. From oldest to youngest the aquifer system consists of...
Hydrologic conditions and trends in Shenandoah National Park, Virginia, 1983-84
Dennis D. Lynch
1987, Water-Resources Investigations Report 87-4131
No abstract available. ...
Free-air gravity anomaly map of the Umnak Plateau region, southeastern Bering Sea
J.R. Childs, H.W. Magistrale, A. K. Cooper
1987, Geophysical Investigations Map 970
Habitat Suitability Index Models: Black-shouldered kite
Craig A. Faanes, Rebecca J. Howard
1987, FWS/OBS 82/10.130
A review and synthesis of existing information were used to develop a model for evaluating black-shouldered kite habitat quality. The model is scaled to produce an index between 0 (unsuitable habitat) to 1.0 (optimal habitat). Habitat suitability index models are designed for use with the Habitat Evaluation Procedures previously developed...
Surface water-quality characteristics in the upper North Fork Gunnison River basin, Colorado
J. M. Norris
1987, Water-Resources Investigations Report 86-4152
Analyses of water quality data collected during 1982 and 1983 in the upper North Fork Gunnison River basin indicate that dissolved-solids concentrations are relatively small, with a mean value near 97 milligrams per liter. Most major dissolved constituents also had small measured concentrations throughout the study area. Trace-element concentrations generally...
South Dakota ground-water quality
N.C. Koch, S.J. Lawrence, Jeanne Goodman, S.M. Pirner
1987, Open-File Report 87-752
HST3D; a computer code for simulation of heat and solute transport in three-dimensional ground-water flow systems
K.L. Kipp
1987, Water-Resources Investigations Report 86-4095
The Heat- and Soil-Transport Program (HST3D) simulates groundwater flow and associated heat and solute transport in three dimensions. The three governing equations are coupled through the interstitial pore velocity, the dependence of the fluid density on pressure, temperature, the solute-mass fraction , and the dependence of the fluid viscosity on...
Comparison of irrigation pumpage and change in water storage of the High Plains Aquifer in Castro and Parmer counties, Texas, 1975-83
Gary W. Mackey
1987, Water-Resources Investigations Report 87-4032
An understanding of the relationship between irrigation pumpage and change in ground-water storage was needed to quantify the amount of water returning to the High Plains aquifer as a result of intensive irrigation in Castro and Parmer Counties, Texas. Irrigation pumpage for the 9-year period, 1975-83, was estimated by using...
Oblique map of the northern Sierra Nevada, California, showing location of gold-bearing areas
T. R. Alpha, F. C. W. Dodge, J. D. Bliss
1987, Miscellaneous Field Studies Map 1981
More than a third of the gold produced by the United States was mined in California. The bulk of this gold was recovered from the western slope of the northern half of the Sierra Nevada between the Merced River in the south and the Feather River to the north, a...
Mineral resources of the Antelope Wilderness Study Area, Socorro County, New Mexico
Donald H. Richter, R. W. Saltus, Stanley L. Korzeb
1987, Bulletin 1734-B
Core index, a numerical core-logging procedure for estimating rock quality
John R. Ege
1987, Circular 954
Geohydrology and susceptibility of major aquifers to surface contamination in Alabama; area 7
W. S. Mooty
1987, Water-Resources Investigations Report 87-4109
The geohydrology and susceptibility of the seven major aquifers to surface contamination in Area 7 - Bibb, Dallas, Hale, Perry, and Wilcox Counties, are described. Aquifers in the northern part of the study area are in Paleozoic limestones and dolomite formations. Deposits in the central part of the study area...
Hydrology and water-quality at the Weldon Spring radioactive waste-disposal sites, St. Charles County, Missouri
M. J. Kleeschulte, L. F. Emmett
1987, Water-Resources Investigations Report 87-4169
Water samples from five monitoring wells adjacent to raffinate pits storing low-level radioactive waste contained concentrations of nitrate as nitrogen ranging from 53 to 990 milligrams per liter. Most samples also had maximum concentrations of calcium (900 milligrams per liter), sodium (340 milligrams per liter), sulfate (320 milligrams per liter),...
Streamflow and water quality of the Grand Calumet River, Lake County, Indiana, and Cook County, Illinois, October 1984
Charles G. Crawford, David J. Wangsness
1987, Water-Resources Investigations Report 86-4208
A diel (24-hour) water-quality survey was done to investigate the sources of dry-weather waste inputs attributable to other than permitted point-source effluent and to evaluate the waste-load assimilative capacity of the Grand Calumet River, Lake County, Indiana, and Cook County, Illinois, in October 1984. Flow in the Grand Calumet River...
Nonpoint-source agricultural chemicals in ground water in Nebraska; preliminary results for six areas of the High Plains Aquifer
Hsiu-Hsiung Chen, A.D. Druliner
1987, Water-Resources Investigations Report 86-4338
The reconnaissance phase of a study to determine the occurrence of agricultural chemicals from nonpoint sources in groundwater in six areas, which represented the major provinces of the High Plains aquifer in Nebraska is described. In 1984, water from 82 wells in the 6 study areas was analyzed for nitrate,...
Simulation of unsteady flow in the Milwaukee Harbor Estuary at Milwaukee, Wisconsin
L. B. House
1987, Water-Resources Investigations Report 86-4050
This report describes the application and results of an unsteady-flow model for the Milwaukee Harbor Estuary. The model simulates unsteady and upstream flow occurring in the estuary as a result of Lake Michigan Seiche. The discharge computed by the model indicates that upstream flow occurs throughout the estuary during periods...
Sketches of Yosemite National Park, California, from Glacier Point, Sentinel Dome, and Mt. Hoffmann
T. R. Alpha
1987, Miscellaneous Field Studies Map 1888
No abstract available....
Geologic map of the southern Mountain Home and northern Indian Peak Ranges (central Needle Range), Beaver County, Utah
M. G. Best, L. F. Hintze, R.D. Holmes
1987, IMAP 1796
