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Comparison of Bowen-ratio, eddy-correlation, and weighing-lysimeter evapotranspiration for two sparse-canopy sites in eastern Washington
S. A. Tomlinson
1996, Water-Resources Investigations Report 96-4081
This report compares evapotranspiration estimated with the Bowen-ratio and eddy-correlation methods with evapotranspiration measured by weighing lysimeters for two sparse-canopy sites in eastern Washington. The sites are located in a grassland area (grass lysimeter site) and a sagbrush- covered area (sage lysimeter site) on the Arid Lands Ecology Reserve in...
Estimating flood hydrographs for urban basins in North Carolina
R.R. Mason Jr., J. D. Bales
1996, Water-Resources Investigations Report 96-4085
A dimensionless hydrograph for North Carolina was developed from data collected in 29 urban and urbanizing basins in the State. The dimen- sionless hydrograph can be used with an estimate of peak flow and basin lagtime to synthesize a design flood hydrograph for urban basins in North Carolina. Peak flows...
Simulation of storm peaks and storm volumes for selected subbasins in the West Fork Trinity River Basin, Texas, water years 1993-94
T. H. Raines
1996, Water-Resources Investigations Report 96-4110
A model parameter set for use with the Hydrologic Simulation Program FORTRAN watershed model was developed to simulate storm peaks and storm volumes for the 28 subbasins of the West Fork Trinity River Basin upstream from Lake Worth, northwest of Fort Worth, Texas, from the calibration and testing of 5...
Hydrogeology and steady-state simulation of ground-water flow in the San Juan Basin, New Mexico, Colorado, Arizona, and Utah
J. M. Kernodle
1996, Water-Resources Investigations Report 95-4187
As part of a multidisciplinary regional aquifer-system analysis, a three-dimensional steady-state ground-water-flow model was constructed for the San Juan Basin in parts of New Mexico, Colorado, Arizona, and Utah. The model simulated ground- water flow in 12 hydrostratigraphic units representing all of the major sources of ground water from aquifers of...
Development, verification, and application of a simplified method to estimate total-streambed scour at bridge sites in Illinois
Robert R. Holmes Jr., Chad J. Dunn
1996, Water-Resources Investigations Report 95-4298
A simplified method to estimate total-streambed scour was developed for application to bridges in the State of Illinois. Scour envelope curves, developed as empirical relations between calculated total scour and bridge-site chracteristics for 213 State highway bridges in Illinois, are used in the method to estimate the 500-year flood scour....
Hydrogeology of the interstream area between Ty Ty Creek and Ty Ty Creek tributary near Plains, Georgia
Lisa M. Stewart, David W. Hicks
1996, Water-Resources Investigations Report 96-4052
This report is part of an interdisciplinary effort to identify and describe processes that control movement and fate of selected fertilizers and pesticides in the surface and subsurface environments in the Fall Line Hills district of the Georgia Coastal Plain physiographic province. This report describes the hydrogeology of the interstream...
Potential effects of coal mining and road construction on the water quality of Scofield Reservoir and its drainage area, central Utah, October 1982 to October 1984
Doyle W. Stephens, Kendall R. Thompson, James B. Wangsgard
1996, Water-Resources Investigations Report 96-4020
Studies were done during 1983-84 to determine the effect of coal mining in Pleasant Valley and construction of State Road 264 in Eccles Canyon on the water quality of local streams and on Scofield Reservoir. Streamflow during 1983-84 set high-flow records in all gaged streams and transported considerable sediment and...
Methodology used to produce an encoded 1:100,000-scale digital hydrographic data layer for the Pacific Northwest
B.J. Fisher
1996, Water-Resources Investigations Report 94-4043
The U.S. Geological Survey (USGS) has produced a River Reach File data layer for the Pacific Northwest for use in water-resource management applications. The Pacific Northwest (PNW) River Reach Files, a geo-referenced river reach data layer at 1:100,000-scale, are encoded with the U.S. Environmental Protection Agency"s (EPA) reach numbers. The...
Trends in surface-water quality in Connecticut, 1969-88
E. C. Trench
1996, Water-Resources Investigations Report 96-4161
Surface-water-quality data from selected monitoring stations in Connecticut were analyzed for trend, using the Seasonal Kendall test, for water years 1969-88, 1975-88, and 1981-88. The number of constituents and stations evaluated varied with the different time periods. The 39 monitoring stations included 26 freshwater streams with associated discharge data, 7...
Field screening of water quality, bottom sediment, and biota associated with irrigation drainage in and near Walker River Indian Reservation, Nevada 1994-95
Carl E. Thodal, Peter L. Tuttle
1996, Water-Resources Investigations Report 96-4214
A study was begun in 1994 to determine whether the quality of irrigation drainage from the Walker River Indian Reservation, Nevada, has caused or has potential to cause harmful effects on human health or on fish and wildlife, or may adversely affect the suitability of the Walker River for other...
Analysis of ground-water data for selected wells near Holloman Air Force Base, New Mexico, 1950-95
G. F. Huff
1996, Water-Resources Investigations Report 96-4116
Ground-water-level, ground-water-withdrawal, and ground- water-quality data were evaluated for trends. Holloman Air Force Base is located in the west-central part of Otero County, New Mexico. Ground-water-data analyses include assembly and inspection of U.S. Geological Survey and Holloman Air Force Base data, including ground-water-level data for public-supply and observation wells and withdrawal...
Scour at selected bridge sites in Alabama, 1991-94
J. Brian Atkins, T. Scott Hedgecock
1996, Water-Resources Investigations Report 96-4137
Scour data were collected at 15 sites on streams in Alabama during high flow conditions. The recurrence intervals of the streamflows ranged from less than 2 to 10 years. Scour depths measured near bridge piers ranged from 0.3 to 5.8 feet. The Colorado State University (CSU) local scour equation recommended...
HYSEP: A Computer Program for Streamflow Hydrograph Separation and Analysis
Ronald A. Sloto, Michele Y. Crouse
1996, Water-Resources Investigations Report 96-4040
HYSEP is a computer program that can be used to separate a streamflow hydrograph into base-flow and surface-runoff components. The base-flow component has traditionally been associated with ground-water discharge and the surface-runoff component with precipitation that enters the stream as overland runoff. HYSEP includes three methods of hydrograph separation that...
An application of bioassessment metrics and multivariate techniques to evaluate central Nebraska streams
S.A. Frenzel
1996, Water-Resources Investigations Report 96-4152
Ninety-one stream sites in central Nebraska were classified into four clusters on the basis of a cluster analysis (TWINSPAN) of macroinvertebrate data. Rapid bioassessment protocol scores for macroinvertebrate species were significantly different among sites grouped by teh first division into two clusters. This division may have distinguished sites on the...
Precipitation, streamflow and water quality data from selected sites in the City of Charlotte and Mecklenburg County, North Carolina, 1993-95
J. B. Robinson, W. F. Hazell, R. G. Garrett
1996, Open-File Report 96-150
Charlotte and Mecklenburg County from October 1993 through June 1995 to identify the type, concentration, and amount of nonpoint-source stormwater runoff within the area. The data collected include measurements of precipitation; streamflow; physical characteristics, such as water temperature, pH, specific conductance, biochemical oxygen demand, oil and grease, and suspended sediment...
Occurrence of the gasoline oxygenate MTBE and BTEX compounds in urban stormwater in the United States, 1991-95
Gregory C. Delzer, John S. Zogorski, Thomas J. Lopes, Robin L. Bosshart
1996, Water-Resources Investigations Report 96-4145
Methyl tert-butyl ether (MTBE) is a gasoline oxygenate. Oxygenates such as MTBE, when added to gasoline, increase the gasoline's oxygen level and decrease vehicular carbon monoxide emissions and ozone levels in the atmosphere. MTBE disperses rapidly in water, was the second most frequently detected volatile organic compound (VOC) in a...
Spatial and temporal distribution of specific conductance, boron, and phosphorus in a sewage-contaminated aquifer near Ashumet Pond, Cape Cod, Massachusetts
K.W. Bussey, D. A. Walter
1996, Open-File Report 96-472
Spatial and temporal distributions of specific conductance, boron, and phosphorus were determined in a sewage-contaminated sand and gravel aquifer near Ashumet Pond, Cape Cod, Massachusetts. The source of contamination is secondarily treated sewage that has been discharged onto rapid- infiltration sand beds at the Massachusetts Military Reservation since 1936. Contaminated...
Assessment of petroleum-hydrocarbon contamination in the surficial sediments and ground water at three former underground storage tank locations, Fort Jackson, South Carolina, 1995
J. F. Robertson
1996, Open-File Report 96-215
Ground-water and sediment contamination by petroleum hydrocarbons resulting from leaks and overfills was detected during tank removal activities at three former underground storage tank locations at Fort Jackson, near Columbia, South Carolina. Investigations were initiated to assess the effect of contamination to the surficial aquifer at Sites 1062, 2438, and...
National Water-Quality Assessment of the Trinity River Basin, Texas - Well and Water-Quality Data from the Outcrop of the Woodbine Aquifer in Urban Tarrant County, 1993
David C. Reutter
1996, Open-File Report 96-413
An urban land-use study of the shallow water-bearing zones of the Woodbine aquifer outcrop area began in 1993 as a part of the National Water-Quality Assessment Program for the Trinity River Basin. Thirty-eight wells located within predominantly commercial or residential settings were selected for this study. Water samples were collected...