Selected drill-stem test data for the Upper Colorado River basin
R.W. Teller, D. T. Chafin
1986, Water-Resources Investigations Report 84-4146
Permeability data from aquifers and confining layers may be available from drill-stem tests made during the course of petroleum exploration. During the drill-stem test, the stratigraphic interval of interest is isolated in the hole by the use of packers attached to the drill string. Fluid flows into the drilling pipe...
Geohydrology and simulated response to ground-water pumpage in Carson Valley, a river-dominated basin in Douglas County, Nevada, and Alpine County, California
D. K. Maurer
1986, Water-Resources Investigations Report 86-4328
A numerical model was used to simulate the effect of development of the groundwater reservoir in Carson Valley on Carson River outflow, evapotranspiration, and groundwater levels and storage. The basin-fill groundwater reservoir consists of: (1) confined and unconfined sedimentary deposits of Quaternary age that underlie the valley floor, and (2)...
Ice in streams: Its formation and effects on flow
H.S. Santeford, G.R. Alger, J.A. Stark
1986, Water-Resources Investigations Report 86-4209
No abstract available. ...
Techniques for estimating flood-flow frequency for unregulated streams in New Mexico
S. D. Waltemeyer
1986, Water-Resources Investigations Report 86-4104
Equations for estimating flood discharges for exceedance probabilities of 0.50, 0.20, 0.10, 0.04, 0.02, and 0.01 at ungaged sites in New Mexico were developed and updated from streamflow gaging station data through 1982. The 1984 data from selected stations in the southwestern part of the State were also used because...
Verification of regression equations for estimating flood magnitudes for selected frequencies on small natural streams in Georgia
McGlone Price, Glen W. Hess
1986, Water-Resources Investigations Report 86-4337
In 1976 the U.S. Geological Survey, in cooperation with the Georgia Department of Transportation, began a program to monitor small natural streams in Georgia to verify the accuracy of the flood frequency estimating equations for the five flood frequency regions that were published in a previous study. Data collection consisted...
Quantity and quality of storm runoff from three urban catchments in Bellevue, Washington
E. A. Prych, J.C. Ebbert
1986, Water-Resources Investigations Report 86-4000
Data on the quantity and quality of urban runoff were collected, analyzed, and used to evaluate the effects of street sweeping and of stormwater detention on quality of runoff. The data included rainfall, runoff discharge, concentrations of selected constituents in discrete samples of runoff, and chemical characteristics of wet- and...
Analysis of fixed-station water-quality data in the Umpqua River basin, Oregon
J. F. Rinella
1986, Water-Resources Investigations Report 85-4253
An appraisal of surface water quality in the Umpqua River basin was made using existing monthly data collected by the Oregon Department of Environmental Quality and the U.S. Geological Survey in cooperation with the Douglas County Water Resources Survey. This appraisal was limited to interpretation of instantaneous monthly water quality...
Techniques for simulating flood hydrographs and estimating flood volumes for ungaged basins in central Tennessee
C. H. Robbins
1986, Water-Resources Investigations Report 86-4192
A dimensionless hydrograph developed for a variety of basin conditions in Georgia was tested for its applicability to central Tennessee streams by comparing it to a similar dimensionless hydrograph developed for central Tennessee streams. Statistical analyses were performed by comparing simulated (or computed) hydrographs, derived by application of the Georgia-study...
Simulation of ground-water flow in the Rio Yauco Alluvial Valley, Yauco, Puerto Rico
Vicente Quinones-Aponte
1986, Water-Resources Investigations Report 85-4179
Water resources of the Lower Rio Grande de Arecibo alluvial valley, Puerto Rico
Vicente Quinones-Aponte
1986, Water-Resources Investigations Report 85-4160
An assessment of the surface and groundwater resources of the lower Rio Grande de Arecibo alluvial valley was made between 1981 and 1983. Rio Grande de Arecibo is the major source of water in the valley with a mean-annual discharge of 527 cu ft/sec (382,000 acre-ft/yr). Its lowest mean-daily flow...
History of ground-water pumpage and water-level decline in the Black Creek and upper Cape Fear aquifers of the central coastal plain of North Carolina
M.D. Winner, W.L. Lyke
1986, Water-Resources Investigations Report 86-4168
Historical ground-water withdrawals and a general water-level decline in the Black Creek and upper Cape Fear aquifers of the central Coastal Plain of North Carolina are documented. Total municipal and industrial pumpage from these aquifers has increased from approximately 120,000 gal/day (gpd) in 1910 to >21 million gpd in 1980....
Potential effects of surface coal mining on the hydrology of the Little Bear Creek area, Moorhead coal field, southeastern Montana
N. E. McClymonds
1986, Water-Resources Investigations Report 85-4201
The Little Bear Creek area of the Moorhead Coal Field, 27 miles south of Ashland, Montana, contains large reserves of Federally owned coal that have been identified for potential lease sale. A hydrologic study was conducted in the area to describe existing hydrologic system and to assess potential effects of...
Traveltime and dispersion in the Shenandoah River and its tributaries, Waynesboro, Virginia, to Harpers Ferry, West Virginia
K.R. Taylor, R.W. James, B.M. Helinsky
1986, Water-Resources Investigations Report 86-4065
Two traveltime and dispersion measurements using rhodamin dye were conducted on a 178-mile reach of the Shenandoah River between Waynesboro, Virginia, and Harpers Ferry, West Virginia. The flows during the two measurements were at approximately the 85% and 45% flow durations. The two sets of data were used to develop...
An alternative basin characteristic for use in estimating impervious area in urban Missouri basins
R. E. Southard
1986, Water-Resources Investigations Report 86-4362
A previous regression analysis of flood peaks on urban basins in St. Louis County, Missouri, indicated that the basin characteristics of percentage of impervious area and drainage area were statistically significant for estimating the 2-, 5-, 10-, 25-, 50-. and 100-yr peak discharges at ungaged urban basins. In this statewide...
Effect of bank protection measures, Stehekin River, Chelan County, Washington
L. M. Nelson
1986, Water-Resources Investigations Report 85-4316
An investigation of the lower Stehekin River was conducted to study the effects on flood elevations and velocities from four bank protection and flood prevention measures that are being contemplated as a means of reducing erosional losses of river bank property. These measures are: bank armoring, armored revetment levees, spur...
Sediment accumulation in San Leandro Bay, Alameda County, California, during the 20th century -- A preliminary report
K.M. Nolan, C. C. Fuller
1986, Water-Resources Investigations Report 86-4057
Major changes made in the configuration of San Leandro Bay, Alameda County, California, during the 20th century have caused rapid sedimentation within parts of the Bay. Opening of the Oakland tidal channel and removal of 97% of the marshlands formerly surrounding the Bay have decreased tidal velocities and volumes. Marshland...
Application of the precipitation-runoff modeling system to small basins in the Parachute Creek basin, Colorado
J. M. Norris
1986, Water-Resources Investigations Report 86-4115
The U.S. Geological Survey 's Precipitation-Runoff Modeling System was calibrated and verified for two small basins in western Colorado. Average monthly mean, average monthly maximum, average annual total, and average daily mean observed and model predicted streamflow differences were small, on the average < 10 %, indicating the Precipitation-Runoff Modeling...
Investigation of the need for discharge adjustments for unsteady flow at selected gaging stations on streams in Tennessee
B.L. Neely, R.H. Bingham
1986, Water-Resources Investigations Report 84-4144
Measured discharges made during rising or falling stages generally require adjustments to refine constant-stage rating curves (stage-discharge relations) for gaged sites. Measurements at 42 gaging stations on Tennessee streams were selected for adjustment. Two methods, generally accepted by the U.S. Geological Survey, were tested: (1) the slope method adjusts the...
Location of potential ground-water quality monitoring wells, Miami 1° by 2° quadrangle, Florida
Martha E. Thagard, Paul R. Seaber
1986, Water-Resources Investigations Report 85-4137
No abstract available....
Map and tables showing potassium-argon age determinations and selected major-element chemical analyses from the Circle quadrangle, Alaska
Gregory D. DuBois, Frederic H. Wilson, Nora B. Shew
1986, Open-File Report 86-392
No abstract available....
Summary of hydrologic conditions in the Reedy Creek Improvement District, central Florida
Edward R. German
1986, Water-Resources Investigations Report 84-4250
The Reedy Creek Improvement is an area of about 43 square miles in southwestern Orange and northwestern Osceola Counties, Florida. A systematic program of hydrologic data collection in the Reedy Creek Improvement District and vicinity provided data for assessing the impact of development, mostly the Walt Disney World Theme Park...
Potentiometric map of the Cockfield Aquifer in Mississippi, fall 1984
Daphne Darden
1986, Water-Resources Investigations Report 86-4042
This map, the second in a series for the Cockfield aquifer in Mississippi, follows a map that delineated the 1980 potentiometric surface of the aquifer. This water level map is based on water level measurements made in about 80 wells in the Cockfield aquifer in the fall of 1984. The...
Maps of debris-flow features evident after the storms of December 1955 and January 1982, Montara Mountain area, California
Water Resources Division, U.S. Geological Survey
1986, Open-File Report 86-363
No abstract available....
Hydrology of Hunters Lake, Hernando County, Florida
S.E. Henderson
1986, Water-Resources Investigations Report 85-4242
The size and shape of Hunters Lake, Florida has been significantly altered by development of the surrounding Spring Hill residential community. The lake is the largest in Hernando County, enlarged by lakeshore excavation and connection to nearby ponds to an area of 360 acres at an average stage of 17.2...
Location of potential ground-water quality monitoring wells, Apalachicola 1° by 2° quadrangle, Florida
Martha E. Thagard, Paul R. Seaber
1986, Water-Resources Investigations Report 85-4131
No abstract available....
