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Page 4821, results 120501 - 120525

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Hydrogeology of the surficial and intermediate aquifers of central Sarasota County, Florida
A. D. Duerr, R. M. Wolansky
1986, Water-Resources Investigations Report 86-4068
The geohydrologic units underlying a 300 sq mi area in central Sarasota County, Florida, consist of the surficial aquifer, intermediate aquifers (Tamiami-upper Hawthorn and lower Hawthorn-upper Tampa aquifers) and confining units, the Floridan aquifer system, and the sub-Floridan confining unit. The saturated thickness of the surficial aquifer ranges from about...
U.S. Geological Survey research in radioactive waste disposal - Fiscal years 1983, 1984, and 1985
G.A. Dinwiddie, N.J. Trask
1986, Water-Resources Investigations Report 87-4009
The report summarizes progress on geologic and hydrologic research related to the disposal of radioactive wastes. The research is described according to whether it is related most directly to: (1) high-level and transuranic wastes, (2) low-level wastes, or (3) uranium mill tailings. Included is research applicable to the identification and...
Occurrence of nitrate and herbicides in ground water in the upper Conestoga River basin, Pennsylvania : water-quality study of the Conestoga River headwaters, Pennsylvania
David K. Fishel, Patricia L. Lietman
1986, Water-Resources Investigations Report 85-4202
Nitrate-nitrogen and herbicide ground-water data is being collected by the u.s. Geological Survey as part of the nationwide Rural Clean Water Program designed to determine the effects of agricultural-management practices on water quality. Data collected from September 1982 to October 1983 · in the 188-square mile intensively farmed upper Conestoga...
Mineral resources of the Castle Peaks Wilderness Study Area, San Bernardino County, California
David M. Miller, James G. Frisken, Robert C. Jachens, Diann D. Gese
1986, Bulletin 1713-A
The Castle Peaks Wilderness Study Area (CDCA266) comprises approximately 45,000 acres in the northern New York Mountains, San Bernardino County, California. At the request of the Bureau of Land Management, 39,303 acres of the wilderness study area were studied. The area was investigated during 1982-1985 using combined geologic, geochemical, and...
Water resources data for Georgia, water year 1985
W.R. Stokes, T.W. Hale, J. L. Pearman, G. R. Buell
1986, Water Data Report GA-85-1
Water resources data for the 1985 water year for Georgia consists of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and ground-water levels. This report contains discharge records of 109 gaging stations; stage for 11 gaging stations; stage and contents for 18...
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...
The relation of ground-water quality to housing density, Cape Cod, Massachusetts
J.H. Persky
1986, Water-Resources Investigations Report 86-4093
Correlation of median nitrate concentration in groundwater with housing density for 18 sample areas on Cape Cod yields a Pearson correlation coefficient of 0.802, which is significant at the 95 % confidence level. In five of nine sample areas where housing density is greater than one unit/acre, nitrate concentrations exceed...
Direction of ground-water flow and ground-water quality near a landfill in Falmouth, Massachusetts
J.H. Persky
1986, Water-Resources Investigations Report 85-4188
A landfill in Falmouth, Massachusetts, is upgradient of a pond used for municipal water supply, but analysis of groundwater flow directions and groundwater quality indicates that leachate from the landfill does not threaten the municipal water supply. A network of water table observation wells was established, and water table altitudes...
Potential for updip movement of salinewater in the Edwards Aquifer, San Antonio, Texas
Roberto Perez
1986, Water-Resources Investigations Report 86-4032
The salinity front, locally known as the "bad-water" line, in the Edwards aquifer separates the freshwater from the salinewater and occurs where the aquifer is confined. The concentration of dissolved solids of the salinewater at the salinity front is 1,000 milligrams per liter. The concentration of dissolved solids in water...
Physical and chemical data for the Sacramento River at Rio Vista, California, November 1983 through November 1984
Allan Y. Ota, L. E. Schemel, S.W. Hager
1986, Open-File Report 86-229
Physical and chemical data for the Sacramento River at Rio Vista , California, for the period of November 1983 through November 1984 are presented in this report. Measurements include specific conductance, alkalinity, suspended particulate matter, and the dissolved inorganic nutrients: nitrite, nitrate + nitrite, ammonium, dissolved silica, and ortho-phosphate. Numerical...
Quality of ground water in the Payette River basin, Idaho
D. J. Parliman
1986, Water-Resources Investigations Report 86-4013
As part of a study to obtain groundwater quality data in areas of Idaho were land- and water-resource development is expected to increase, water quality, geologic, and hydrologic data were collected for 74 wells in the Payette River basin, west-central Idaho, from July to October 1982. Historical (pre-1982) data from...
Flood-depth frequency relations for streams in Alabama
D.A. Olin
1986, Water-Resources Investigations Report 85-4296
Equations were defined for estimating the depth of water for floods having recurrence intervals of 2, 5, 10, 25, 50, 100, and 200 years on rural and urban streams in Alabama. Multiple regression analyses were made using the ' maximum RSQUARE improvement ' procedures. The dependent variable was the flood...
Hydrogeology and leachate movement near two chemical-waste sites in Oswego County, New York
H. R. Anderson, Todd S. Miller
1986, Water-Resources Investigations Report 84-4148
Forty-five observation wells and test holes were installed at two chemical waste disposal sites in Oswego County, New York, to evaluate the hydrogeologic conditions and the rate and direction of leachate migration. At the site near Oswego groundwater moves northward at an average velocity of 0.4 ft/day through unconsolidated glacial...
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...
Assessment of ground-water contamination at Wurtsmith Air Force Base, Michigan, 1982-85
T. R. Cummings, F. R. Twenter
1986, Water-Resources Investigations Report 86-4188
Continued study of ground-water contamination at Wurtsmith Air Force Base, Michigan, defined the movement and distribution of volatile organic compounds in the glacial sand and gravel aquifer at known sites of contamination, and has defined new plumes at two other sites. The Arrow Street purge system, installed in 1982 to...