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Page 4514, results 112826 - 112850

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Hydrologic factors affecting lake-level fluctuations in Big Marine Lake, Washington County, Minnesota
R. G. Brown
1985, Water-Resources Investigations Report 85-4176
A study by the U.S. Geological Survey from 1981 through 1984, in cooperation with the Carnelian-Marine Watershed District and the Minnesota Department of Natural Resources, investigated the causes of large lake-level fluctuations at Big Marine Lake. Historic records document that Big Marine Lake has changed substantially in surface area during...
Simulation of the effects of management alternatives on the stream-aquifer system, South Fork Solomon River Valley between Webster Reservoir and Waconda Lake, north-central Kansas
R.D. Burnett, T.B. Reed
1985, Water-Resources Investigations Report 85-4200
With extensive irrigation use of both surface water and groundwater in the South Fork Solomon River valley shortages of these water supplies have been created. A two-dimensional digital model of transient groundwater flow was applied to investigate the potential effects on the stream aquifer system of seven management alternatives. These...
Hydrologic description of the Tamarack Wildlife area and vicinity, Logan County, Colorado, and simulated effects of possible water-management activities
A.W. Burns
1985, Water-Resources Investigations Report 85-4014
The stream-aquifer system of the Tamarack Wildlife Area and vicinity in Logan County, Colorado, is described using analyses of water level, water temperature, and specific conductance data. Correlation analysis indicated that water levels in the flood plain relate better to those in the river than those in the upgradient valley...
Quality of the Arkansas River and irrigation-return flows in the lower Arkansas River Valley, Colorado
Doug Cain
1985, Water-Resources Investigations Report 84-4273
Irrigation-return flows in the lower Arkansas River valley of Colorado were investigated using one-time data at 59 sites, monthly data at 4 sites, and intensive data in a small irrigated area. Specific conductance of return flows increased downstream, paralleling specific conductance of irrigation water. During July 1977, Arkansas River streamflow...
Rainfall-runoff relationships and water-quality assessment of Coon Creek watershed, Anoka County, Minnesota
A.D. Arntson, L. H. Tornes
1985, Water-Resources Investigations Report 84-4013
Rainfall-runoff relationships and results of water-quality analyses were studied to develop an understanding of flooding problems and to assess present and potential water-quality problems in the 96.9-square-mile Coon Creek watershed, Anoka County, Minnesota. Rainfall, runoff, and water-quality data were collected from March 1979 to November 1980 at five continuously recording...
Runoff and chemical loading in small watersheds in the Twin Cities Metropolitan Area, Minnesota
M. A. Ayers, R. G. Brown, G.L. Oberts
1985, Water-Resources Investigations Report 85-4122
Flow, rainfall, and water-quality data were collected during 1980 for 15 to 30 rainfall and snowmelt events on 6 rural and 11 urban watersheds in the Twin Cities Metropolitan Area. Event or daily flow and load models (for seven constituents) were developed and used with runoff and rainfall data for...
Low-flow characteristics of streams in the Kishwaukee River basin, Illinois
Howard E. Allen Jr., Ellen A. Cowan
1985, Water-Resources Investigations Report 84-4311
Seven-day, 2-year, and 7-day, 10-year natural low flows are estimated at five continuous-record gaging stations based on streamflow records and records of wastewater effluent furnished by treatment plants. Low flows are also estimated at 22 partial-record stations by relating natural low-flow estimates for long-term stations to discharge measurements at partial-record...
Reconnaissance of ground-water resources in the lower Gunnison River basin, southwestern Colorado
Tom Brooks, D. J. Ackerman
1985, Water-Resources Investigations Report 84-4185
Information about ground-water quantity and quality in the lower Gunnison River basin assists in developing, appropriating, and managing the basin 's water resources. Hydrogeologic data are presented for 51 wells and 61 springs. Chemical analyses are given for 34 wells and 17 springs. Drillers ' reports for 71 wells are...
Water quality and streamflow data for the West Fork Trinity River in Fort Worth, Texas
S. C. McCutcheon
1985, Water-Resources Investigations Report 84-4330
Water-quality data were collected on a 13.6-mile reach of the West Fork Trinity River in Fort Worth, Texas to test a dynamic Lagrangian model. Flow was steady. Loads of dissolved constituents varied with time at the beginning of the study reach and in the reach, primarily because of photosynthesis. River...
Preliminary evaluation of the Central Basin aquifer system in Tennessee for receiving injected wastes
M. W. Bradley
1985, Water-Resources Investigations Report 84-4103
An aquifer may be allowed to receive injected wastes where the aquifer meets criteria established in the Environmental Protection Agency 's Underground Injection Control program. The Central Basin aquifer system in Tennessee consists of Ordovician to Devonian carbonate rocks and it occurs from the Valley and Ridge province to west...
Selected hydrographs and statistical analyses characterizing the water resources of the Arkansas River basin, Colorado
A.W. Burns
1985, Water-Resources Investigations Report 85-4264
Hydrographs of annual precipitation from 30 stations, April 1 snowpack readings from 18 snow-survey courses, annual discharge from 46 streamflow gaging stations, and instantaneous water levels from 37 wells are presented to illustrate the temporal and spatial variability of the water resources of the Arkansas River basin in Colorado. Statistical...
Reconnaissance geochemical exploration of plutons of syenite and shonkinite, southern Asir, Kingdom of Saudi Arabia
W.C. Overstreet, A.B. Assegaff, M.A. Hussain, M.I. Naqvi, G.I. Selner, J.J. Matzko
1985, Open-File Report 85-7
Reconnaissance geochemical exploration for rare metals in plutons of syenite and shonkinite disclosed generally less than 20 ppm Nb in rocks, wadi sediments, and concentrates. The sparsity of Nb is accompanied by low values for La, Sn, W, Y, and Zr and relatively high but insignificant values for Be and...
An approach for appraising the accuracy of suspended-sediment data
D. E. Burkham
1985, Professional Paper 1333
Procedures are presented for appraising the accuracy of suspended-sediment data. Types of errors involved are sampling error, spatial error, temporal error, and sediment-discharge error. The standard error of estimate is used to represent errors. Suspended-sediment data for 17 U.S. Geological Survey gaging stations in Arizona, California, Nebraska, New Mexico, Pennsylvania,...
Ground-water contribution to the salinity of the Upper Colorado River Basin
J. W. Warner, F.J. Heimes, R.F. Middelburg
1985, Water-Resources Investigations Report 84-4198
A study was conducted to estimate the contribution of groundwater and other natural sources to the salinity of streamflow in the Upper Colorado River Basin. Salt-load estimates were derived from a mass balance using measurements of quantity and quality of base streamflow. Groundwater inflow was considered to represent the bulk...
Hydrogeologic appraisal of five selected aquifers in Erie County, New York
Todd S. Miller, W. W. Staubitz
1985, Water-Resources Investigations Report 84-4334
Hydrogeologic conditions and water quality at four stratified-drift aquifers and a bedrock (Onondaga Limestone) aquifer were investigated by the U.S. Geological Survey in cooperation with the Erie County Department of Environment and Planning. The Clarence-Lancaster-Newstead area includes two aquifers--one is a complex of morainal, beach, and outwash sand and gravel;...