Environmental setting of the Willamette basin, Oregon
Mark A. Uhrich, Dennis A. Wentz
1999, Water-Resources Investigations Report 97-4082-A
The Willamette Basin, Oregon, is one of more than 50 large river basins and aquifer systems (referred to as study units) across the United States where the status and trends of water quality and the factors controlling water quality are being studied by the National Water-Quality Assessment Program of the...
Hydrogeology and ground-water flow of the shallow aquifer system at the Naval Surface Warfare Center, Dahlgren, Virginia
Barry S. Smith
1999, Water-Resources Investigations Report 99-4149
Ground-water discharge and nitrate loadings to the coastal bays of Maryland
Jonathan J.A. Dillow, Earl A. Greene
1999, Water-Resources Investigations Report 99-4167
Nitrate in ground water discharged to the Atlantic coastal bays of Maryland enhances the growth of phytoplankton and algae in the bays, which in turn contributes to the process of eutrophication (changes in a body of water as nutrients and sediments accumulate), which is one of the principal environmental problems...
A dynamic water-quality modeling framework for the Neuse River estuary, North Carolina
Jerad D. Bales, Jeanne C. Robbins
1999, Water-Resources Investigations Report 99-4017
As a result of fish kills in the Neuse River estuary in 1995, nutrient reduction strategies were developed for point and nonpoint sources in the basin. However, because of the interannual variability in the natural system and the resulting complex hydrologic-nutrient inter- actions, it is difficult to detect through a...
Sedimentation survey of Lago Yahuecas, Puerto Rico, March 1997
Luis R. Soler-Lopez, Richard M. T. Webb, Francisco Perez-Blair
1999, Water-Resources Investigations Report 98-4259
Sediment is filling Lago Yahuecas, a reservoir built to divert water to Lago Guayo for power generation, at an average rate of 2 percent per year. During March 10 to 13, 1997, the U.S. Geological Survey conducted a bathymetric survey of Lago Yahuecas to determine the amount of sediment deposited...
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...
Real-time flood alert and simulation of river flood discharges in the Puyallup River basin, Washington
M. C. Mastin
1999, Water-Resources Investigations Report 98-4226
No abstract available....
Ground-water hydrology and simulation of five remediation alternatives for an area affected by uranium-mill effluent near Canon City, Colorado
Edward R. Banta, Daniel T. Chafin
1999, Water-Resources Investigations Report 98-4229
Surface-water-quality assessment of the Yakima River basin, Washington: Overview of major findings, 1987-91
Jennifer L. Morace, Gregory J. Fuhrer, Joseph F. Rinella, Stuart W. McKenzie, Marshall W. Gannett, Karen L. Bramblett, Ted R. Pogue Jr., Kenneth A. Skach, Sandra S. Embrey, Thomas F. Cuffney, Michael R. Meador, Stephen D. Porter, Martin E. Gurtz
1999, Water-Resources Investigations Report 98-4113
Surface-water-quality conditions were assessed in the Yakima River Basin, which drains 6,155 square miles of mostly forested, range, and agricultural land in Washington. The Yakima River Basin is one of the most intensively farmed and irrigated areas in the United States, and is often referred to as the “Nation’s Fruitbowl.”...
Water-quality assessment of the New England coastal basins in Maine, Massachusetts, New Hampshire, and Rhode Island: Environmental settings and implications for water quality and aquatic biota
Sarah M. Flanagan, Martha G. Nielsen, Keith W. Robinson, James F. Coles
1999, Water-Resources Investigations Report 98-4249
The New England Coastal Basins in Maine, Massachusetts, New Hampshire, and Rhode Island constitute one of 59 study units selected for water-quality assessment as part of the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) program. England Coastal Basins study unit encompasses the fresh surface waters and ground waters in a...
Geologic map of the Oasis Valley basin and vicinity, Nye County, Nevada
Christopher J. Fridrich, S.A. Minor, P. L. Ryder, J. L. Slate, R.G. Warren, T.G. Hildenbrand, D.A. Sawyer, P. P. Orkild
1999, Open-File Report 99-533-B
No abstract available....
Analysis of carbon isotopes, determination of ground-water age, and estimated characteristics of the contaminant source at two fuel-spill plumes, western Cape Cod, Massachusetts, 1996
Jennifer G. Savoie
1999, Water-Resources Investigations Report 98-4112
No abstract available....
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...
US Geological Survey nutrient preservation experiment: Experimental design, statistical analysis, and interpretation of analytical results
Charles J. Patton, Edward J. Gilroy
1999, Water-Resources Investigations Report 98-4118
This report describes the experimental details and interprets results from a study conducted by the U.S. Geological Survey (USGS) in 1992 to assess the effect of different sample-processing treatments on the stability of eight nutrient species in samples of surface-, ground-, and municipal-supply water during storage at 4 degrees Celsius...
Quantification of metal loading in Fisher Creek by tracer injection and synoptic sampling, Park County, Montana, August 1997
Briant A. Kimball, David A. Nimick, Linda J. Gerner, Robert L. Runkel
1999, Water-Resources Investigations Report 99-4119
Acid mine drainage from abandoned and inactive mines affects the water quality of the upper reaches of Fisher Creek, Montana. A sodium chloride tracer was added to the stream for 29.5 hours to provide a hydrologic context for synoptic sampling of metal chemistry in the stream and its inflows. The...
Estimating the magnitude and frequency of floods in rural basins of North Carolina
Benjamin F. Pope, Gary D. Tasker
1999, Water-Resources Investigations Report 99-4114
A statewide study was conducted to develop two methods for estimating the magnitude and frequency of floods in rural ungaged basins in North Carolina. Flood-frequency estimates for gaged sites in North Carolina were computed by fitting the annual peak flows for each site to a log-Pearson Type III distribution. As...
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...
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...
Pesticides in streams in New Jersey and Long Island, New York, and relation to land use
Robert G. Reiser, Anne K. O’Brien
1999, Water-Resources Investigations Report 98-4261
Pesticide compounds were detected in all 50 water samples collected from streams in New Jersey and Long Island, New York, during June 9-18, 1997. Samples were analyzed for 47 compounds, of which 25 were detected. The number of pesticides detected at each site ranged from 1 to 14. The seven...
U.S. Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Charleston, South Carolina, March 8-12, 1999: Volume 1 (Part A)
David W. Morganwalp, Herbert T. Buxton, editor(s)
1999, Water-Resources Investigations Report 99-4018-A
This report contains papers presented at the seventh Technical Meeting of the U.S. Geological Survey (USGS), Toxic Substances Hydrology (Toxics) Program. The meeting was held March 8-12, 1999, in Charleston, South Carolina. Toxics Program Technical Meetings are held periodically to provide a forum for presentation and discussion of results of...
Pesticides in surface water in the Connecticut, Housatonic, and Thames River basins, 1992-95
Marc James Zimmerman
1999, Water-Resources Investigations Report 98-4247
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...
The use of chemical and physical properties for characterization of strontium distribution coefficients at the Idaho National Engineering and Environmental Laboratory, Idaho
Jeffrey J. Rosentreter, Reinaldo Nieves, John Kalivas, J. P. Rousseau, R. C. Bartholomay
1999, Water-Resources Investigations Report 99-4123
No abstract available....
Reconfigured-Channel Monitoring and Assessment Program
John G. Elliott, Randolph S. Parker
1999, Water-Resources Investigations Report 99-4111
Streamflow, base flow, and ground-water recharge in the Housatonic River basin, western Massachusetts and parts of eastern New York and northwestern Connecticut
Gardner C. Bent
1999, Water-Resources Investigations Report 98-4232
Streamflows for selected flow durations from 1 to 99 percent and the August median streamflows were estimated for 11 long-term streamflow-gaging stations in and near the study area. Estimates of streamflow and associated standard errors were determined for selected flow durations from 50 to 99 percent and the August median...
