Kriging analysis of mean annual precipitation, Powder River Basin, Montana and Wyoming
M.R. Karlinger, James A. Skrivan
1981, Water-Resources Investigations Report 80-50
Kriging is a statistical estimation technique for regionalized variables which exhibit an autocorrelation structure. Such structure can be described by a semi-variogram of the observed data. The kriging estimate at any point is a weighted average of the data, where the weights are determined using the semi-variogram and an assumed...
Two-dimensional ground-water flow model of the Cretaceous aquifer system of Lee County and vicinity, Mississippi
John Michael Kernodle
1981, Water-Resources Investigations Report 81-70
A two-dimensional ground-water flow model of the Eutaw-McShan and Gordo aquifers in the area of Lee County, Miss., was successfully calibrated and verified using data from six long-term observation wells and two intensive studies of areal water levels. The water levels computed by the model were found to be most...
Hydrogeology, estimated impact, and regional well monitoring of effects of subsurface wastewater injection, Tampa Bay area, Florida
John J. Hickey
1981, Water-Resources Investigations Report 80-118
Six proposed injection sites are located in Pinellas County, Fla., and the city of St. Petersburg. Projected maximum injection rate, if all sites become operational, will be about 40 million gallons per day. The injection zone at the proposed sites is in a consistently dolomitized section of the Avon Park...
Borehole data-collection methods applicable for the regional observation and monitor well program, Southwest Florida Water Management District
John J. Hickey
1981, Water-Resources Investigations Report 81-57
Management of ground-water resources within the Southwest Florida Water Management District requires that hydrogeologic characteristics of water-bearing rocks and quality characteristics of water be described. Wells for the District 's Regional Observation and Monitor Well Program are drilled specifically to collect data to describe the ground-water resource. Suggested borehole data-collection...
Diel oxygen variations in the Rhode River Estuary, Maryland, 1970-1978
Robert L. Cory, Paul V. Dresler
1981, Water-Resources Investigations Report 81-10
Since April 1970 the U.S. Geological Survey has operated an estuarine water quality monitor in the upper reach of Rhode River, a small embayment on the northwestern shore of Chesapeake Bay. This report analyzes variations in diel oxygen over the period April 1970 through January 1979. The diel oxygen range...
The surficial aquifer in east-central St. Johns County, Florida
Eugene C. Hayes
1981, Water-Resources Investigations Report 81-14
The surficial aquifer, a composite of confined and unconfined water-bearing zones overlying the Miocene Hawthorn Formation, is an important source of water in St. Johns County, Fla. The water from wells open to the surficial aquifer generally meets quality standards recommended by the U.S. Environmental Protection Agency for public water...
Water quality of Alimagnet, Farquar, and Long Lakes in Apple Valley, Minnesota
M.R. Have, G. A. Payne, M. A. Ayers
1981, Water-Resources Investigations Report 81-40
Alimagnet, Farquar, and Long Lakes, in Apple Valley, Minnesota, were sampled from 1973-79 to determine their physical and chemical characteristics. A storm-sewer inlet to Alimagnet Lake was also sampled during two storms in 1978. The 1976-77 drought caused a more noticeable effect on the quality of the lakes than any...
Water use in Ohio, 1975
R. Michael Hathaway, Michael Eberle
1981, Water-Resources Investigations Report 81-17
The estimated water use in Ohio for all purposes in 1975 was 16 ,431 million gallons per day. Of this total, 15,321 were taken from surface water while the remaining 1,110 represent ground-water withdrawals. Totals by category are as follows (in million gallons per day): Thermoelectric power generation, 12 ,404;...
Multi-saline sample distillation apparatus for hydrogen isotope analyses: Design and accuracy
Afifa Afifi Hassan
1981, Water-Resources Investigations Report 81-25
A distillation apparatus for saline water samples was designed and tested. Six samples may be distilled simultaneously. The temperature was maintained at 400 C to ensure complete dehydration of the precipitating salts. Consequently, the error in the measured ratio of stable hydrogen isotopes resulting from incomplete dehydration of hydrated salts...
Hydrologic effects of proposed changes in management practices, Winnebago Pool, Wisconsin
William R. Krug
1981, Water-Resources Investigations Report 80-107
Various changes in the management practices for the Winnebago pool have been proposed. The objectives of the proposed changes are protecting wetlands adjacent to the lakes in the pool and assuring adequate flow in the Fox River downstream from Lake Winnebago. Three proposed operation plans for the Winnebago pool were...
Limnological and geochemical survey of Williams Lake, Hubbard County, Minnesota
J. W. LaBaugh, G.E. Groschen, Thomas C. Winter
1981, Water-Resources Investigations Report 81-41
A limnological and geochemical survey of Williams Lake, Minnesota, was made in 1979 to provide an initial interpretive description of the lake and the contiguous ground-water system. This survey was made as part of a continuing research program related to the investigation of the interaction of lakes and their contiguous...
Ground-water potential of the glacial deposits near Logansport, Cass County, Indiana
Daniel C. Gillies
1981, Water-Resources Investigations Report 81-7
The glacial deposits underlying a 260 square-mile area near Logansport, Indiana, range in thickness from 0 to 300 feet and consist of three semiconfined sand and gravel aquifer units separated and overlain by three semiconfining till units. The ground-water development potential of the lowest of the sand and gravel aquifers...
Saline ground-water discharge to the Smoky Hill River between Salina and Abilene, central Kansas
Joe B. Gillespie, Gerald D. Hargadine
1981, Water-Resources Investigations Report 81-43
Saline water discharges from the alluvial aquifer into the Smoky Hill and Solomon Rivers between New Cambria and Sand Springs, Kansas. During relatively stable base flow in 1976-77, the discharge was about 32 cubic feet per second. Chloride concentrations at base flow increased about 800 milligrams per liter in the...
User's guide for a general purpose dam-break flood simulation model (K-634)
Larry F. Land
1981, Water-Resources Investigations Report 80-116
An existing computer program for simulating dam-break floods for forecast purposes has been modified with an emphasis on general purpose applications. The original model was formulated, developed and documented by the National Weather Service. This model is based on the complete flow equations and uses a nonlinear implicit finite-difference numerical...
Ground-water resources of the White River basin, Madison County, Indiana
Wayne W. Lapham
1981, Water-Resources Investigations Report 81-35
The ground-water resources of the White River basin in and near Madison County, Indiana, were investigated by mapping the aquifers, estimating their hydraulic properties, determining the distribution of potentiometric head in the aquifers, and estimating some of the components of the ground-water budget from data collected in the field. This...
Impact of suburban residential development on water resources in the area of Winslow Township, Camden County, New Jersey
Thomas V. Fusillo
1981, Water-Resources Investigations Report 81-27
Surface-water and ground-water quality, streamflow, and data on ground-water levels in the upper Great Egg Harbor River basin in the vicinity of the Winslow Crossing residential development in Winslow Township are evaluated. The data include continuous streamflow at four sites, monthly stream water quality at seven sites, ground-water levels and...
Water resources of Upper Separation Creek Basin, south-central Wyoming
L. R. Larson, Everett Alfred Zimmerman
1981, Water-Resources Investigations Report 80-85
Expected development of coal in the 85-square-mile upper Separation Creek basin of south-central Wyoming will greatly increase the demands on water resources. Flows in Separation Creek are seasonal and highly variable. Streamflow is primarily caused by snowmelt. Very light snowpack in the spring of 1977 resulted in annual runoff being...
Chemical, physical, and radiological quality of selected public water supplies in Florida, February-April 1980
Bernard J. Franks, G. A. Irwin
1981, Water-Resources Investigations Report 81-31
Virtually all treated public water supplies in Florida meet the National Interim Primary and Secondary Drinking Water Regulations. These findings are based on a water-quality reconnaissance of 126 raw and treated public water supplies throughout the State during the period February through April 1980. Primary drinking water regulations maximum contaminant...
Floods in Maine, April-May 1979
Richard A. Fontaine, C. Richard Haskell
1981, Water-Resources Investigations Report 81-68
Heavy rainfall during April 27-30, 1979, resulted in moderate to record flooding in much of northern and western Maine. During this period, rainfall totals of as much as 6 inches were measured. This period was preceded by up to 10 days of seasonally warm temperatures and snowmelt, which helped create...
Mean annual streamflow of selected drainage basins in the coal area of southeastern Montana
Rodger F. Ferreira
1981, Water-Resources Investigations Report 81-61
Streamflow characteristics of drainage basins within the Fort Union coal region of southeastern Montana were estimated to provide premining data for evaluating the future effects of mining on the environment. Estimated annual mean streamflow at 22 data-collection stations for water years 1975-77 ranged from 0 to 887 cubic feet per...
Results of a reconnaissance water-quality sampling program of the Ogallala aquifer in Colorado, Kansas, Nebraska, Oklahoma, South Dakota, and Texas
Gerald L. Feder, Noel C. Krothe
1981, Water-Resources Investigations Report 81-65
Results of a reconnaissance water-quality sampling program of the Ogallala aquifer indicates the water generally is suitable for most uses. Fluoride and selenium were the only chemical constituents found to exceed the National Interim Primary Drinking Water Regulations in water from some of the wells.Unusually large silica concentrations in many...
Characterization of floodflows along the Arkansas River without regulation by Pueblo Reservoir, Portland to John Martin Reservoir, Southeastern Colorado
John R. Little, Daniel P. Bauer
1981, Water-Resources Investigations Report 80-97
The need for a method for estimating flow characteristics of flood hydrographs between Portland, Colo., and John Martin Reservoir has been promoted with the construction of the Pueble Reservoir. To meet this need a procedure was developed for predicting floodflow peaks, traveltimes, and volumes at any point along the Arkansas...
Rainfall-runoff modeling and preliminary regional flood characteristics of small rural watersheds in the Arkansas River basin in Colorado
Russell K. Livingston
1981, Water-Resources Investigations Report 80-112
Both recorded and synthetic rainfall-runoff and annual peak-discharge data for 17 rural watersheds were analyzed to evaluate the magnitude, frequency, and volume of floods in the plains region of the Arkansas River basin in Colorado. Flood-frequency relations from analysis of recorded data were weighted or combined with flood-frequency relations from...
Digital model of the unconsolidated aquifer system in the Modesto area, Stanislaus and San Joaquin Counties, California
Clark J. Londquist
1981, Water-Resources Investigations Report 81-12
A digital mathematical model of the unconsolidated alluvial aquifer system in the Modesto area, Calif., has been developed which can be used to determine the effects of increased pumping and water use of future water levels in the aquifer system. The model is divided into two units. The lower unit...
Analysis of stream-aquifer system interrelationships in the Big Blue and Little Blue River basins in Gage and Jefferson Counties, Nebraska
M. J. Ellis
1981, Water-Resources Investigations Report 81-29
Seepage measurements made during the fall of 1978 at 21 sites in the Big Blue River basin and at 35 sites in the Little Blue River basin were used to determine stream gains or losses in 20 drainage areas in the Big Blue River basin and 31 drainage areas in...
