Use of environmental tracers to evaluate ground-water age and water-quality trends in a buried-valley aquifer, Dayton area, southwestern Ohio
Gary L. Rowe, Stephanie Dunkle Shapiro, Peter Schlosser
1999, Water-Resources Investigations Report 99-4113
Chlorofluorocarbons (CFC method) and tritium and helium isotopes (3H-3He method) were used as environmental tracers to estimate ground-water age in conjunction with efforts to develop a regional ground-water flow model of the buried-valley aquifer in the Dayton area, southwestern Ohio. This report describes results of CFC and water-quality sampling, summarizes...
Characteristics of water-quality data for Lake Houston, selected tributary inflows to Lake Houston, and the Trinity River near Lake Houston (a potential source of interbasin transfer), August 1983-September 1990
Fred Liscum, R.L. Goss, Walter Rast
1999, Water-Resources Investigations Report 99-4129
Lake Houston, a reservoir completed in 1954 about 25 miles east-northeast of Houston, Texas, is a principal surface-water source for the city of Houston. The increase in water supply to meet future demands is expected to be accommodated by supplementing surface-water inflows to Lake Houston. The Trinity River is considered...
Hydrogeology of the surficial aquifer in the vicinity of a former landfill, Naval Submarine Base Kings Bay, Camden County, Georgia
David C. Leeth
1999, Water-Resources Investigations Report 98-4246
Neogene and Quaternary sediments constitute the surficial aquifer beneath the study area; in descending order from youngest to oldest these include-the Quaternary undifferentiated surficial sand and Satilla Formation; the Pliocene(?) Cypresshead Formation; and the middle Miocene Coosawhatchie Formation. Beneath the surficial aquifer, the upper Brunswick aquifer consists of part of...
Storage Capacity and Water Quality of Lake Ngardok, Babeldaob Island, Republic of Palau, 1996-98
Chiu Wang Yeung, Michael F. Wong
1999, Water-Resources Investigations Report 99-4118
A bathymetric survey conducted during March and April, 1996, determined the total storage capacity Lake Ngardok to be between 90 and 168 acre-feet. Elevation-surface area and elevation-capacity curves summarizing the current relations among elevation, surface area, and storage capacity were created from the bathymetric map. Rainfall and lake-elevation data collected...
Fraser River watershed, Colorado — Assessment of available water-quantity and water-quality data through water year 1997
Lori Estelle Apodaca, Jeffrey B. Bails
1999, Water-Resources Investigations Report 98-4255
The water-quantity and water-quality data for the Fraser River watershed through water year 1997 were compiled for ground-water and surface-water sites. In order to assess the water-quality data, the data were related to land use/land cover in the watershed. Data from 81 water-quantity and water-quality sites, which consisted of 9...
Iron in the aquifer system of Suffolk County, New York, 1990-98
Craig J. Brown, Donald A. Walter, Steven Colabufo
1999, Water-Resources Investigations Report 99-4126
High concentrations of dissolved iron in ground water contribute to the biofouling of public-supply wells, and the treatment and remediation of biofouling are costly. Water companies on Long Island, N.Y., spend several million dollars annually to recondition, redevelop, and replace supply wells and distribution lines; treat dissolved iron with sequestering...
Nutrient and suspended-sediment concentrations, trends, loads, and yields from the nontidal part of the Susquehanna, Potomac, Patuxent, and Choptank rivers, 1985-96
Linda C. Darrell, Brenda F. Majedi, Joy S. Lizarraga, Joel D. Blomquist
1999, Water-Resources Investigations Report 98-4177
The Chesapeake Bay River-Input Monitoring Program was established to characterize the water quality of four major rivers in Maryland, and to quantify the load and the long-term trends in concentrations of nutrients (nitrogen and phosphorus) and suspended sediment transported from the nontidal part of each river to the Chesapeake Bay....
Investigation of the distribution of organochlorine and polycyclic aromatic hydrocarbon compounds in the Lower Columbia River using semipermeable-membrane devices
Kathleen A. McCarthy, Robert W. Gale
1999, Water-Resources Investigations Report 99-4051
Organochlorine and polycyclic aromatic hydrocarbon compounds are of concern in the Columbia River Basin because of their adverse effects on fish and wildlife. Because these compounds can have important biological consequences at concentrations well below the detection limits associated with conventional water-sampling techniques, we used semipermeable membrane devices (SPMDs) to...
Geohydrology of monitoring wells drilled in Oasis Valley near Beatty, Nye County, Nevada, 1997
Armando R. Robledo, Philip L. Ryder, Joseph M. Fenelon, Frederick L. Paillet
1999, Water-Resources Investigations Report 98-4184
Twelve monitoring wells were installed in 1997 at seven sites in and near Oasis Valley, Nevada. The wells, ranging in depth from 65 to 642 feet, were installed to measure water levels and to collect water-quality samples. Well-construction data and geologic and geophysical logs are presented in this report. Seven...
Characteristics of fractures in crystalline bedrock determined by surface and borehole geophysical surveys, eastern surplus superfund site, Meddybemps, Maine
Bruce P. Hansen, Janet Radway Stone, John W. Lane Jr.
1999, Water-Resources Investigations Report 99-4050
Surface and borehole geophysical methods were used to determine fracture orientation in crystalline bedrock at the Eastern Surplus Superfund Site in Meddybemps, Maine. Fracture-orientation information is needed to address concerns about the fate of contaminants in ground water at the site. Azimuthal square-array resistivity surveys were conducted at 3 locations...
Streamflow measurements, basin characteristics, and streamflow statistics for low-flow partial-record stations operated in Massachusetts from 1989 through 1996
Kernell G. Ries III
1999, Water-Resources Investigations Report 99-4006
A network of 148 low-flow partial-record stations was operated on streams in Massachusetts during the summers of 1989 through 1996. Streamflow measurements (including historical measurements), measured basin characteristics, and estimated streamflow statistics are provided in the report for each low-flow partial-record station. Also included for each station are location information,...
Hydrologic assessment of the Upper Dorr Run Watershed, Hocking County, Ohio, 1998
R.J. Haefner
1999, Water-Resources Investigations Report 99-4137
The Upper Dorr Run Watershed in Hocking County, Ohio, has been mined several times for coal and clay since 1913 and is a significant source of acid mine drainage to the Hocking River. To assess the surface-water hydrology of the site, a topographic map showing the location of springs and...
Relations of surface-water quality to streamflow in the Raritan River basin, New Jersey, water years 1976-93
Debra E. Buxton, Kathryn Hunchak-Kariouk, R. Edward Hickman
1999, Water-Resources Investigations Report 99-4045
Relations of water quality to streamflow were determined for 18 water-quality constituents at 21 surface-water stations within the drainage area of the Raritan River Basin for water years 1976-93. Surface-water-quality and streamflow data were evaluated for trends (through time) in constituent concentrations during high and low flows, and relations between...
Relations of surface-water quality to streamflow in the Wallkill and upper Delaware River basins, New Jersey and vicinity, water years 1976-93
Debra E. Buxton, Kathryn Hunchak-Kariouk, R. Edward Hickman
1999, Water-Resources Investigations Report 99-4016
Relations of water quality to streamflow were determined for 18 water-quality constituents at 18 surface-water stations within the drainage basins of the Wallkill and upper Delaware Rivers in New Jersey and vicinity for water years 1976-93. Surface-water-quality and streamflow data were evaluated for trends (through time) in constituent concentrations during...
Status of water levels and selected water-quality conditions in the Mississippi River valley alluvial aquifer in eastern Arkansas, 1998
Robert L. Joseph
1999, Water-Resources Investigations Report 99-4035
During the spring of 1998, water levels were measured in 656 wells completed in the Mississippi River Valley alluvial aquifer in eastern Arkansas. Water samples were collected during the summer of 1998 from about 140 wells completed in the alluvial aquifer and measured for specific conductance, and samples from 119...
Traveltimes along Clear Creek and selected tributaries upstream from Golden, Colorado, 1996-97
Sally M. Cuffin
1999, Water-Resources Investigations Report 98-4151
Increased traffic along mountainous stretches of Interstate Highway 70, U.S. Highway 40, and U.S. Highway 6 in Colorado has resulted in a corresponding increase in the movement of hazardous materials. The proximity of Clear Creek and its tributaries to these highways places downstream water users at risk in the event...
Hydrogeology of the surficial aquifer system in Southwest Florida
Water Resources Division, U.S. Geological Survey
1999, Fact Sheet 158-96
Restoration and management of the south Florida ecosystem will be guided by hydrologic models that simulate water flowing through the wetlands and shallow subsurface aquifers beneath them. The restoration of the ecosystem is, essentially, the restoration of the natural hydrologic system. As surface water is re-diverted from manmade canals to...
Areal studies aid protection of ground-water quality in Illinois, Indiana, and Wisconsin
P.C. Mills, Robert T. Kay, Timothy A. Brown, Douglas J. Yeskis
1999, Water-Resources Investigations Report 98-4143
In 1991, the U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, initiated studies designed to characterize the ground-water quality and hydrogeology in northern Illinois, and southern and eastern Wisconsin (with a focus on the north-central Illinois cities of Belvidere and Rockford, and the Calumet region of northeastern...
Internal surface water flows
Mitchell H. Murray
1999, Fact Sheet 175-96
Introduction The South Florida Ecosystem Restoration Program is an intergovernmental effort to reestablish and maintain the ecosystem of south Florida. One element of the restoration effort is the development of a firm scientific basis for resource decision making.The U.S. Geological Survey (USGS) provides scientitic information as part of the South Florida...
Physical, chemical, and isotopic data for samples from the Anderson Springs area, Lake County, California, 1998-1999
C. J. Janik, F. Goff, M.L. Sorey, J. J. Rytuba, D. Counce, E.M. Colvard, M. Huebner, L. D. White, A. Foster
1999, Open-File Report 99-585
Anderson Springs is located about 90 miles (145 kilometers) north of San Francisco, California, in the southwestern part of Lake County. The area was first developed in the late 1800s as a health resort, which was active until the 1930s. In the rugged hills to the south of the resort...
Procedures and computer programs for telescopic mesh refinement using MODFLOW
Stanley A. Leake, David V. Claar
1999, Open-File Report 99-238
Ground-water models are commonly used to evaluate flow systems in areas that are small relative to entire aquifer systems. In many of these analyses, simulation of the entire flow system is not desirable or will not allow sufficient detail in the area of interest. The procedure of telescopic mesh refinement allows use of...
Geophysical framework of the southwestern Nevada volcanic field and hydrogeologic implications
V.J. Grauch, David A. Sawyer, Chris J. Fridrich, Mark R. Hudson
1999, Professional Paper 1608
Gravity and magnetic data, when integrated with other geophysical, geological, and rock-property data, provide a regional framework to view the subsurface geology in the southwestern Nevada volcanic field. The region has been loosely divided into six domains based on structural style and overall geophysical character. For each domain, the subsurface...
Selected hydrologic data from the Cedar Rapids area, Linn County, Iowa, April 1996 through March 1999
R.A. Boyd, R.L. Kuzniar, P.M. Schulmeyer
1999, Open-File Report 99-461
The City of Cedar Rapids, Iowa obtains its municipal water supply from four well fields along the Cedar River. The wells are completed at depths of about 60 to 80 feet in a shallow alluvial aquifer adjacent to the Cedar River. The City of Cedar Rapids and the U.S. Geological...
Analysis of geophysical logs, at North Penn Area 6 Superfund Site, Lansdale, Montgomery County, Pennsylvania
Randall W. Conger
1999, Open-File Report 99-271-A
The U.S. Geological Survey (USGS), as part of technical assistance to the U.S. Environmental Protection Agency (USEPA), collected borehole geophysical log data in 34 industrial, commercial, and public supply wells and 28 monitor wells at the North Penn Area 6 Superfund Site, in Lansdale, Pa., from August 22, 1995, through...
Distribution of salinity in ground water from the interpretation of borehole-geophysical logs and salinity data, Calf Pasture Point, Davisville, Rhode Island
Peter E. Church, William C. Brandon
1999, Water-Resources Investigations Report 99-4153
The distribution of salinity in ground water at Calf Pasture Point, a small coastal peninsula bounded by Narragansett Bay on the east and Allen Harbor on the west, in Davisville, Rhode Island, was interpreted from borehole-geophysical data and previously collected salinity data to help identify potential flowpaths of contaminated ground...
