Evaluation of a Method of Estimating Low-Flow Frequencies from Base-Flow Measurements at Indiana Streams
John Thomas Wilson
2000, Water-Resources Investigations Report 2000–4063
A mathematical technique of estimating low-flow frequencies from base-flow measurements was evaluated by using data for streams in Indiana. Low-flow frequencies at low-flow partial-record stations were estimated by relating base-flow measurements to concurrent daily flows at nearby streamflow-gaging stations (index stations) for which low-flow- frequency curves had been developed. A...
Probability of detecting atrazine/desethyl-atrazine and elevated concentrations of nitrate plus nitrate as nitrogen in ground water in the Idaho part of the western Snake River Plain
Mary M. Donato
2000, Water-Resources Investigations Report 2000-4163
As ground water continues to provide an ever-growing proportion of Idaho?s drinking water, concerns about the quality of that resource are increasing. Pesticides (most commonly, atrazine/desethyl-atrazine, hereafter referred to as atrazine) and nitrite plus nitrate as nitrogen (hereafter referred to as nitrate) have been detected in many aquifers in the...
A Synopsis of Technical Issues for Monitoring Sediment in Highway and Urban Runoff
Gardner C. Bent, John R. Gray, Kirk P. Smith, G. Douglas Glysson
2000, Open-File Report 2000-497
Accurate and representative sediment data are critical for assessing the potential effects of highway and urban runoff on receiving waters. The U.S. Environmental Protection Agency identified sediment as the most widespread pollutant in the Nation's rivers and streams, affecting aquatic habitat, drinking water treatment processes, and recreational uses of rivers,...
Geologic map of the Wildcat Lake 7.5' quadrangle, Kitsap and Mason Counties, Washington
Peter J. Haeussler, Kenneth P. Clark
2000, Open-File Report 2000-356
The Wildcat Lake quadrangle lies in the forearc of the Cascadia subduction zone, about 20-km east of the Cascadia accretionary complex exposed in the Olympic Mountains (Tabor and Cady, 1978),and about 100-km west of the axis of the Cascades volcanic arc. The quadrangle lies near the middle of the Puget...
Geologic map and database of the Salem East and Turner 7.5 minute quadrangles, Marion County, Oregon: A digital database
Terry L. Tolan, Marvin H. Beeson, Christopher B. DuRoss
2000, Open-File Report 2000-351
The Salem East and Turner 7.5-minute quadrangles are situated in the center of the Willamette Valley near the western margin of the Columbia River Basalt Group (CRBG) distribution. The terrain within the area is of low to moderate relief, ranging from about 150 to almost 1,100-ft elevation. Mill Creek flows...
Physical characteristics of stream subbasins in the Sauk River basin, central Minnesota
Christopher A. Sanocki, Brian C. Fischer
2000, Open-File Report 2000-233
Data that describe the physical characteristics of stream subbasins upstream from selected sites on streams in the Sauk River Basin, located in central Minnesota, are presented in this report. The physical characteristics are the drainage area of the subbasin, the percentage area of the subbasin covered only by lakes, the...
Physical characteristics of stream subbasins in the Redeye (Leaf) River Basin, central Minnesota
Christopher A. Sanocki, Brian C. Fischer
2000, Open-File Report 2000-234
Data that describe the physical characteristics of stream subbasins upstream from selected sites on streams in the Redeye (Leaf) River Basin, located in central Minnesota, are presented in this report. The physical characteristics are the drainage area of the subbasin, the percentage area of the subbasin covered only by lakes,...
Physical characteristics of stream subbasins in the Long Prairie River basin, central Minnesota
Christopher A. Sanocki, Brian C. Fischer
2000, Open-File Report 2000-232
Data that describe the physical characteristics of stream subbasins upstream from selected sites on streams in the Long Prairie River Basin, located in central Minnesota, are presented in this report. The physical characteristics are the drainage area of the subbasin, the percentage area of the subbasin covered only by lakes,...
Seismic-hazard maps for Hawaii
Fred W. Klein, A.D. Frankel, C.S. Mueller, R. L. Wesson, P. G. Okubo
2000, IMAP 2724
Probabilistic seismic hazard maps were prepared for Hawaii portraying peak horizontal ground acceleration and horizontal spectral response acceleration for 0.2, 0.3, and 1.0 second periods with probabilities of exceedance of 10% in 50 years and 2% in 50 years. This particular data set...
Comparability of suspended-sediment concentration and total suspended solids data
John R. Gray, G.D. Glysson, L.M. Turcios, G. E. Schwarz
2000, Water-Resources Investigations Report 2000-4191
Two laboratory analytical methods — suspended-sediment concentration (SSC) and total suspended solids (TSS) — are predominantly used to quantify concentrations of suspended solid-phase material in surface waters of the United States. The analytical methods differ. SSC data are produced by measuring the dry weight of all the sediment from a...
Proceedings of the International workshop on the Nojima Fault core and borehole data analysis
Koichiro Fujimoto, Hidemi Tanaka, D.A. Lockner
Hisao Ito, editor(s)
2000, Open-File Report 2000-129
Earthquakes in and near the northeastern United States, 1638-1998
R. L. Wheeler, N.K. Trevor, Arthur C. Tarr, A. J. Crone
2000, IMAP 2737
The data are those used to make a large-format, colored map of earthquakes in the northeastern United States and adjacent parts of Canada and the Atlantic Ocean (Wheeler, 2000; Wheeler and others, 2001; references in Data_Quality_Information, Lineage). The map shows the locations of 1,069 known earthquakes of magnitude 3.0 or...
Effects of hypothetical management scenarios on simulated water temperatures in the Tualatin River, Oregon
John C. Risley
2000, Water-Resources Investigations Report 2000-4071
In 1994, the U.S. Geological Survey (USGS) and the Unified Sewerage Agency of Washington County, Oregon (USA) began a cooperative study to better understand water-temperature variations in the Tualatin River and to assess mitigative water-management solutions. Continuous water-temperature data were collected at locations along the main stem of the river...
Development of a stream habitat index for use with an Index of Biotic Integrity in the St. Croix River Basin, Minnesota
R. M. Goldstein, D. L. Lorenz, Scott Niemela
2000, Water-Resources Investigations Report 99-4290
More than 70 streams in the St. Croix River Basin in Minnesota were sampled for fish community composition and physical habitat during 1996–98. A habitat index was developed based on measurements, field observations, and land use. The objective was to develope a habitat index for use to evaluate water quality...
Estimated effects on water quality of Lake Houston from interbasin transfer of water from the Trinity River, Texas
Fred Liscum, Jeffery W. East
2000, Water-Resources Investigations Report 2000-4082
The City of Houston is considering the transfer of water from the Trinity River to Lake Houston (on the San Jacinto River) to alleviate concerns about adequate water supplies for future water demands. The U.S. Geological Survey, in cooperation with the City of Houston, conducted a study to estimate the...
Spatial distribution, temporal variability, and chemistry of the salt wedge in the lower Charles River, Massachusetts, June 1998 to July 1999
R.F. Breault, L.K. Barlow, K.D. Reisig, G.W. Parker
2000, Water-Resources Investigations Report 2000-4124
The Charles River is of great recreational and ecological value to the Boston metropolitan region and the Commonwealth of Massachusetts. It is also the focus of the U.S. Environmental Protection Agency (USEPA) Region I, Clean Charles 2005 Task Force. The main goal of the Task Force is to make the...
Use of a ground-penetrating radar system to detect pre- and post-flood scour at selected bridge sites in New Hampshire, 1996-98
Joseph R. Olimpio
2000, Water-Resources Investigations Report 2000-4035
Ground-penetrating radar was used to measure the depth and extent of existing and infilled scour holes and previous scour surfaces at seven bridges in New Hampshire from April 1996 to November 1998. Ground-penetrating-radar survey techniques initially were used by the U.S. Geological Survey to study streambed scour at 30 bridges....
Method for estimating water use and interbasin transfers of freshwater and wastewater in an urbanized basin
M.A. Horn
2000, Water-Resources Investigations Report 99-4287
Techniques for management of drainage basins that use water budgets to balance available water resources with actual or anticipated water use require accurate and precise estimates of basin withdrawals, interbasin transfers of freshwater, unaccounted-for use, water use, consumptive use, inflow and infiltration, basin return flow, and interbasin transfers of wastewater....
Evaluation of the use of reach transmissivity to quantify leakage beneath Levee 31N, Miami-Dade County, Florida
Mark S. Nemeth, Walter M. Wilcox, Helena M. Solo-Gabriele
2000, Water-Resources Investigations Report 2000-4066
A coupled ground- and surface-water model (MODBRANCH) was developed to estimate ground-water flow beneath Levee 31N in Miami-Dade County, Florida, and to simulate hydrologic conditions in the surrounding area. The study included compilation of data from monitoring stations, measurement of vertical seepage rates in wetlands, and analysis of the hydrogeologic...
Hydrogeology, hydrologic budget, and water chemistry of the Medina Lake area, Texas
Rebecca B. Lambert, Kenneth C. Grimm, Roger W. Lee
2000, Water-Resources Investigations Report 2000-4148
A three-phase study of the Medina Lake area in Texas was done to assess the hydrogeology and hydrology of Medina and Diversion Lakes combined (the lake system) and to determine what fraction of seepage losses from the lake system might enter the regional ground-water-flow system of the Edwards and (or)...
Reconstructing historical changes in the environmental health of watersheds by using sediment cores from lakes and reservoirs in Salt Lake Valley, Utah
David L. Naftz, Doyle W. Stephens, Edward Callender, Peter C. Van Metre
2000, Fact Sheet 164-00
The Great Salt Lake Basins study area of the National Water-Quality Assessment (NAWQA) program, which began in 1997, is increasing the scientific understanding of factors that affect surface-water quality within the study-area boundaries (fig. 1). One way to improve the understanding of these factors is to look at historical trends...
Estimation of peak streamflows for unregulated rural streams in Kansas
Patrick P. Rasmussen, Charles A. Perry
2000, Water-Resources Investigations Report 2000-4079
Peak streamflows were estimated at selected recurrence intervals (frequencies) ranging from 2 to 200 years using log-Pearson Type III distributions for 253 streamflow-gaging stations in Kansas. The annual peak-streamflow data, through the 1997 water year, were from streamflow-gaging stations with unregulated flow in mostly rural basins. A weighted least-squares regression...
Estimated flow-duration curves for selected ungaged sites in the Cimarron and lower Arkansas River basins in Kansas
Seth E. Studley
2000, Water-Resources Investigations Report 2000-4113
Flow-duration curves for 1968-98 were estimated for 16 ungaged sites in the Cimarron and lower Arkansas River Basins in south-central Kansas. The method of estimation used six unique factors of flow duration: (1) mean streamflow and percentage duration of mean streamflow, (2) ratio of 1-percent-duration streamflow to mean streamflow, (3)...
Methodology for applying monitored natural attenuation to petroleum hydrocarbon-contaminated ground-water systems with examples from South Carolina
Frank H. Chapelle, John F. Robertson, James Landmeyer, Paul M. Bradley
2000, Water-Resources Investigations Report 2000-4161
Natural attenuation processes such as dispersion, advection, and biogradation serve to decrease concentrations of disssolved contaminants as they are transported in all ground-water systems. However, the efficiency of these natural attenuation processes and the degree to which they help attain remediation goals, varies considerably from site to site. This report...
Suspended-sediment budget, flow distribution, and lake circulation for the Fox Chain of Lakes in Lake and McHenry Counties, Illinois, 1997-99
David L. Schrader, Robert R. Holmes Jr.
2000, Water-Resources Investigations Report 2000-4115
The Fox Chain of Lakes is a glacial lake system in McHenry and Lake Counties in northern Illinois and southern Wisconsin. Sedimentation and nutrient overloading have occurred in the lake system since the first dam was built (1907) in McHenry to raise water levels in the lake system. Using data...
