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Page 5048, results 126176 - 126200

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Not all publications have extents, not all extents are completely accurate
Occurrence of beds of low hydraulic conductivity in surficial deposits of Florida
Henry G. Healy, James D. Hunn
1984, Water-Resources Investigations Report 84-4210
The disposal of municipal and industrial wastes on or at shallow depths below land surface can result in contamination of ground water--the source of drinking water for more than 90 percent of Florida 's residents. This threat to public health has resulted in new State groundwater regulations. Knowledge of the...
Low-flow transport models for conservative and sorbed solutes — Uvas Creek, near Morgan Hill, California
A. P. Jackman, R. A. Walters, V. C. Kennedy
1984, Water-Resources Investigations Report 84-4041
Models describing low-flow transport of conservative (nonreactive) and reactive solutes, which adsorb on the streambed, are developed and tested. Temporary storage within the bed plays an important role in solute movement. Three different models of bed-storage processes are developed for conservative solutes. One model assumes the bed is a well-mixed,...
Atmospheric deposition of selected chemicals and their effect on nonpoint-source pollution in the Twin Cities Metropolitan Area, Minnesota
R. G. Brown
1984, Water-Resources Investigations Report 83-4195
Atmospheric deposition and subsequent runoff concentrations of total Kjeldahl nitrogen, dissolved nitrite-plus-nitrate nitrogen, total phosphorus, total sulfate (only for atmospheric deposition), total chloride, and total lead were studied from April 1 to October 31, 1980, in one rural and three urban watersheds in the Twin Cities Metropolitan Area, Minnesota. Seasonal...
Ground-water resources of the White River basin, Randolph County, Indiana
W.W. Lapham, L. D. Arihood
1984, Water-Resources Investigations Report 83-4267
The two major aquifer systems in Randolph County, Indiana are sand and gravel and bedrock (limestone, dolomite, and shale of Silurian to Odovician age). The average thickness of the sands and gravels is 15 ft, and the aquifers are areally discontinuous. The bedrock aquifer underlies the entire study area and...
Maps to estimate average streamflow and headwater limits for streams in U.S. Army Corps of Engineers, Mobile District, Alabama and adjacent states
George H. Nelson Jr.
1984, Water-Resources Investigations Report 84-4274
U.S. Army Corps of Engineers permits are required for discharges of dredged or fill-material downstream from the ' headwaters ' of specified streams. The term ' headwaters ' is defined as the point of a freshwater (non-tidal) stream above which the average flow is less than 5 cu ft/s. Maps...
Application of the U.S. Geological Survey's precipitation-runoff modeling system to the Prairie Dog Creek basin, southeastern Montana
L. E. Cary
1984, Water-Resources Investigations Report 84-4178
The U.S. Geological Survey 's precipitation-runoff modeling system was tested using 2 year 's data for the daily mode and 17 storms for the storm mode from a basin in southeastern Montana. Two hydrologic response unit delineations were studied. The more complex delineation did not provide superior results. In this...
Evaluation of the potential for artificial ground-water recharge in eastern San Joaquin County, California — Phase 2
R. L. Ireland
1984, Water-Resources Investigations Report 83-4207
In response to the increasing demand on water supplies and declining water levels in eastern San Joaquin County, the U.S. Geological Survey, in cooperation with the San Joaquin County Flood Control and Water Conservation District, is evaluating the potential for artificially recharging the aquifer system in eastern San Joaquin County,...
Hydrology of Lake Butler, Orange County, Florida
James L. Smoot, Donna M. Schiffer
1984, Water-Resources Investigations Report 84-4163
Lake Butler is one of the lakes that collectively make up the Butler chain of lakes in the headwaters of the Kissimmee River, Florida. The bottom configuration of the lake is typical of relict karst features formed during lower stages in sea level. The top of the Floridan aquifer is...
Impact of development on availability and quality of ground water in eastern Nassau County, Florida, and southeastern Camden County, Georgia
D.P. Brown
1984, Water-Resources Investigations Report 83-4190
The primary sources of water in the area are from the surficial and Floridan aquifers. The surficial aquifer, consisting of thin permeable zones of sand, shell, and limestone, provides limited water supplies (10-50 gallons per minute). Its estimated transmissivity ranges from less than 100 to 10,000 feet squared per day....
Simulated effects of proposed reservoir-development alternatives on streamflow quantity in the White River, Colorado and Utah
Gerhard Kuhn, S. R. Ellis
1984, Water-Resources Investigations Report 84-4297
Numerous reservoirs have been proposed for the White River basin in Colorado and Utah, primarily to provide water for oil-shale development. A multireservoir-flow model was used to simulate the effects of streamflow withdrawal at four of the proposed reservoirs using historical streamflow data from the 1932-81 water years. The proposed...
Quality-assurance data for routine water analysis in the laboratories of the US Geological Survey for water-year 1983
D.B. Peart, Nancy Thomas
1984, Water-Resources Investigations Report 84-4234
The U.S. Geological Survey maintains a quality-assurance program based on the analysis of reference samples for its two water-analysis laboratories located in Atlanta, Georgia, and Denver, Colorado. Reference samples containing selected inorganic constituents are prepared at the U.S. Geological Survey 's Ocala, Florida office and disguised as routine samples ,...
Floods of August 7-8, 1979, in Chautauqua County, New York, with hydraulic analysis of Canadaway Creek in the village of Fredonia
Richard Lumia, W. H. Johnston
1984, Water-Resources Investigations Report 83-4211
Extensive flooding of streams in Chautauqua County, N.Y., on August 7-8, 1979, after severe thunderstorms, resulted in one death and millions of dollars worth of property damage. Severe flooding was reported on Canadaway Creek in Fredonia, where the peak discharge was computed to be 12,000 cubic feet per second. The...
Potential ground-water level changes in the Mississippi River alluvial aquifer in response to proposed navigation improvements on the Yazoo River in Mississippi
A. G. Lamonds, J. M. Kernodle
1984, Water-Resources Investigations Report 84-4039
A proposed navigation project on the Yazoo River between Vicksburg and Greenwood, Mississippi, will increase minimum river stages by more than 19 feet at the site of the proposed lock and dam near Vicksburg, and will decrease minimum river stages by 2 to 7 feet in much of the upper...
Channel changes of Powder River between Moorhead and Broadus, Montana, 1939-1978
H. A. Martinson
1984, Water-Resources Investigations Report 83-4128
Bank erosion and changes in channel width, length, and pattern were determined for the Powder River between Moorhead and Broadus, Montana using maps of the bankfull channel made from aerial photographs taken during 1939, 1954, 1967, 1973, and 1978. Contemporaneous daily mean and peak discharge records from Moorhead provide the...
Flood-discharge profiles of selected streams in Rockland County, New York
Richard Lumia
1984, Water-Resources Investigations Report 84-4049
Flood-discharge profiles of 10 streams in Rockland County at six recurrence intervals ranging from 2 to 100 years are presented. Synthetic flood-frequency estimates were derived for nine rainfall-runoff sites from calibrated models; observed flood-frequency estimates were derived for three sites having long-term discharge records. A variance-weighting technique was applied to...