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Page 5101, results 127501 - 127525

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Preliminary study of the aquifers of the lower Mesilla Valley in Texas and New Mexico by model simulation
J. S. Gates, D. E. White, E. R. Leggat
1984, Water-Resources Investigations Report 84-4317
The aquifers in the lower Mesilla Valley of Texas and New Mexico provide water for irrigation, industrial use, and municipal supply. At present (1984), the shallow aquifer is used principally for irrigation. The medium-depth aquifer (the top of which is about 160 to 260 feet below land surface) and deep...
Runoff, sediment transport, and water quality in a northern Illinois agricultural watershed before urban development, 1979-81
H.E. Allen Jr., J. R. Gray
1984, Water-Resources Investigations Report 82-4073
A study designed to quantify and evaluate changes in runoff and sediment transport attributable to construction activities during urban development of a watershed required identification of pre-construction hydrologic conditions. Data collected before construction on a 2.81 sq m (7.28 sq km) agricultural watershed (upper Spring Creek) near Rockford, IL, show...
Ground-water conditions and well yields in fractured rocks, southwestern Nevada County, California
R. W. Page, P.W. Anttila, K. L. Johnson, M.J. Pierce
1984, Water-Resources Investigations Report 83-4262
This report describes the availability of ground water in the southwestern part of Nevada County, and suggests general guidelines for selecting sites for future ground-water development in the study area. Ground water in this area occurs chiefly in fractures in hard pre-Tertiary metavolcanic and plutonic rocks generally above a depth...
Sediment Transport in the Lower Yampa River, Northwestern Colorado
John G. Elliott, James E. Kircher, Paul Von Guerard
1984, Water-Resources Investigations Report 84-4141
Discharge measurements and sediment samples were taken at streamflow-gaging station 09260050 Yampa River at Deerlodge Park in 1982 and 1983 to determine the annual sediment supply to the Yampa Canyon in Dinosaur National Monument. Forty-three years of discharge records at two tributary sites were combined to determine the historic discharge...
Estimation of streamflow for selected sites on the Carson and Truckee rivers in California and Nevada, 1944-80
J. C. Blodgett, R.N. Oltmann, K.R. Poeschel
1984, Water-Resources Investigations Report 84-4058
Daily mean and monthly discharges were estimated for 10 sites on the Carson and Truckee Rivers for periods of incomplete records and for tributary sites affected by reservoir regulation. On the basis of the hydrologic characteristics, stream-flow data for a water year were grouped by month or season for subsequent...
Hydrology of a surface coal mined area in Randolph County, Illinois
J.V. Borghese, A. R. Klinger
1984, Water-Resources Investigations Report 84-4256
Ground water was monitored from October 1980 to April 1983 and surface water was monitored from October 1980 to September 1982 in the 0.6-square-mile basin of Plum Creek Tributary in Randolph County, Illinois, to determine effects of surface mining for coal. During the study period, the basin was being surfaced...
Quantity and quality of streamflow in the White River basin, Colorado and Utah
J. M. Boyle, K.J. Covay, D. P. Bauer
1984, Water-Resources Investigations Report 84-4022
The water quality and flow of existing streams in the White River basin, located in northwestern Colorado and northeastern Utah, are adequate for present uses, but future development (such as energy) may affect stream quality and quantity. Present conditions are described as a baseline to enable planners to allocate available...
Ground water in the Dickson area of the western Highland Rim of Tennessee
M. W. Bradley
1984, Water-Resources Investigations Report 82-4088
A hydrologic study of the Dickson, Tennessee, area provided additional information on the occurrence of ground water in the Mississippian carbonate rocks of the western Highland Rim. Twenty-six test wells were drilled to determine the occurrence of ground water in relation to topographic position, regolith thickness, streamflow gains or losses,...
International strategic minerals inventory summary report; chromium
J.H. DeYoung Jr., M. P. Lee, B. R. Lipin
1984, Circular 930-B
Major world resources of chromium, a strategic mineral commodity, are described in this summary report of information in the International Strategic Minerals Inventory {ISMI}. ISMI is a cooperative data-collection effort of earth-science and mineral-resource agencies in Australia, Canada, the Federal Republic of Germany, the Republic of South Africa, and the...
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....
The Georges Bank monitoring program 1983: Analysis of trace metals in bottom sediments
Michael H. Bothner, R.R. Rendigs, Esma Campbell, M. W. Doughten, P. J. Aruscavage, A. F. Dorrzapf, R. G. Johnson, C.M. Parmenter, M. J. Pickering, D. C. Brewster, F. W. Brown
1984, Circular 915
From July 1981, when drilling began on Georges Bank, to May 1982, the concentration of barium, a major element in drilling mud, has increased by a factor of 3.5 in bulk sediments 200 m from the drill site in block 410 and by a factor of 2.3 at the drill...
Ground-water conditions in the Cottonwood-West Oakley Fan area, south-central Idaho
T.K. Edwards, H.W. Young
1984, Water-Resources Investigations Report 84-4140
Intensive groundwater development in the Cottonwood-West Oakley Fan area, Cassia County, Idaho, has resulted in rapid water-level declines and establishment of two critical groundwater areas. A northwest-trending fault in nearly coincident with the boundary between the two critical groundwater areas. Southwest of the fault, water levels in limestone are as...
Quality of ground water in agricultural areas of the San Luis Valley, south-central Colorado
Patrick Edelmann, David R. Buckles
1984, Water-Resources Investigations Report 83-4281
The quality of ground water in the principal agricultural areas of the San Luis Valley, south-central Colorado was evaluated using chemical analyses of water collected from 57 wells completed in the unconfined aquifer and from 25 wells completed in the confined aquifer. Ground water in both aquifers generally contains dissolved-solids...
Effects of irrigating with wastewater on ground-water quality at Fort Carson Military Reservation golf course near Colorado Springs, Colorado
Patrick Edelmann
1984, Water-Resources Investigations Report 83-4268
Fort Carson Military Reservation has used treatment wastewater for irrigation of the Fort Carson golf course since 1971. The effect of applied wastewater on groundwater quality at Fort Carson golf course was evaluated using water levels and water-quality data from 20 observation wells. The water-quality constituents analyzed included dissolved solids,...
Reconnaissance of water-quality characteristics of streams in the City of Charlotte and Mecklenburg County, North Carolina
W.H. Eddins, J. K. Crawford
1984, Water-Resources Investigations Report 84-4308
In 1979-81, water samples were collected from 119 sites on streams throughout the City of Charlotte and Mecklenburg County, North Carolina, and were analyzed for specific conductance, dissolved chloride, hardness, pH, total alkalinity, total phosphorus, trace elements, arsenic, cadmium, chromium, copper, iron, lead, manganese, mercury, silver, and zinc and biological...