Ground-Water Levels in the Ozark Aquifer along the Viburnum Trend, Southeastern Missouri, 2001-05
Michael J. Kleeschulte
2006, Scientific Investigations Report 2006-5220
During 2001, eight monitoring wells were installed along the Viburnum Trend to determine if dewatering of lead-zinc mines in the St. Francois aquifer affected water levels in the surficial Ozark aquifer. The well locations were chosen specifically to investigate the effects of different mining scenarios. Before data collection, much of...
Water-quality changes caused by riverbank filtration between the Missouri River and three pumping wells of the Independence, Missouri, well field 2003-05
Brian P. Kelly, Paul H. Rydlund Jr.
2006, Scientific Investigations Report 2006-5174
Riverbank filtration substantially improves the source-water quality of the Independence, Missouri well field. Coliform bacteria, Cryptosporidium, Giardia, viruses and selected constituents were analyzed in water samples from the Missouri River, two vertical wells, and a collector well. Total coliform bacteria, Cryptosporidium, Giardia, and total culturable viruses were detected in the Missouri...
Nutrients in streams and rivers across the nation — 1992–2001
David K. Mueller, Norman E. Spahr
2006, Scientific Investigations Report 2006-5107
Nutrient compounds of nitrogen and phosphorus were investigated in streams and rivers sampled as part of the U.S. Geological Survey National Water-Quality Assessment (NAWQA) Program. Nutrient data were collected in 20 NAWQA study units during 1992-95, 16 study units during 1996-98, and 15 study units during 1999-2001. To facilitate...
Hydrogeology, Aquifer Geochemistry, and Ground-Water Quality in Morgan County, West Virginia
Carol J. Boughton, Kurt J. McCoy
2006, Scientific Investigations Report 2006-5198
Private and public wells throughout Morgan County, W. Va., were tested to determine aquifer hydraulic, geochemical, and water-quality characteristics. The entire study area is located in the Valley and Ridge Physiographic Province, a region of complex geologic structure and lithology. Aquifers in the study area are characterized by thin to...
Water-Quality Conditions of Chester Creek, Anchorage, Alaska, 1998-2001
Roy L. Glass, Robert T. Ourso
2006, Scientific Investigations Report 2006-5229
Between October 1998 and September 2001, the U.S. Geological Survey's National Water-Quality Assessment Program evaluated the water-quality conditions of Chester Creek, a stream draining forest and urban settings in Anchorage, Alaska. Data collection included water, streambed sediments, lakebed sediments, and aquatic organisms samples from urban sites along the stream. Urban...
Simulation of Streamflow and Water Quality to Determine Fecal Coliform and Nitrate Concentrations and Loads in the Mad River Basin, Ohio
David C. Reutter, Barry M. Puskas, Martha L. Jagucki
2006, Scientific Investigations Report 2006-5160
The Hydrological Simulation Program Fortran (HSPF) was used to simulate the concentrations and loads of fecal coliform and nitrate for streams in the Mad River Basin in west-central Ohio during the period 1999 through 2003. The Mad River Basin was divided into subbasins that were defined either by the 14-digit...
The Effectiveness of Cattlemans Detention Basin, South Lake Tahoe, California
Jena M. Green
Jena M. Green, editor(s)
2006, Scientific Investigations Report 2006-5259
Lake Tahoe (Nevada-California) has been designated as an 'outstanding national water resource' by the U.S. Environmental Protection Agency, in part, for its exceptional clarity. Water clarity in Lake Tahoe, however, has been declining at a rate of about one foot per year for more than 35 years. To decrease the...
Application of a stream-aquifer model to Monument Creek for development of a method to estimate transit losses for reusable water, El Paso County, Colorado
Gerhard Kuhn, L. Rick Arnold
2006, Scientific Investigations Report 2006-5184
The U.S. Geological Survey, in cooperation with Colorado Springs Utilities, the Colorado Water Conservation Board, and the El Paso County Water Authority, began a study in 2004 to (1) apply a stream-aquifer model to Monument Creek, (2) use the results of the modeling to develop a transit-loss accounting program for...
Occurrence of organic wastewater compounds in drinking water, wastewater effluent, and the Big Sioux River in or near Sioux Falls, South Dakota, 2001-2004
Steven K. Sando, Edward T. Furlong, James L. Gray, Michael T. Meyer
2006, Scientific Investigations Report 2006-5118
The U.S. Geological Survey (USGS) in cooperation with the city of Sioux Falls conducted several rounds of sampling to determine the occurrence of organic wastewater compounds (OWCs) in the city of Sioux Falls drinking water and waste-water effluent, and the Big Sioux River in or near Sioux Falls during August...
A logistic regression equation for estimating the probability of a stream in Vermont having intermittent flow
Scott A. Olson, Michael C. Brouillette
2006, Scientific Investigations Report 2006-5217
A logistic regression equation was developed for estimating the probability of a stream flowing intermittently at unregulated, rural stream sites in Vermont. These determinations can be used for a wide variety of regulatory and planning efforts at the Federal, State, regional, county and town levels, including such applications as assessing...
Environmental Setting of the Lower Merced River Basin, California
Jo Ann M. Gronberg, Charles R. Kratzer
2006, Scientific Investigations Report 2006-5152
In 1991, the U.S. Geological Survey began to study the effects of natural and anthropogenic influences on the quality of ground water, surface water, biology, and ecology as part of the National Water-Quality Assessment (NAWQA) Program. As part of this program, the San Joaquin-Tulare Basins study unit is assessing parts...
Environmental Effects of Agricultural Practices - Summary of Workshop Held on June 14-16, 2005
Water Resources Division, U.S. Geological Survey
2006, Scientific Investigations Report 2006-5215
A meeting between the U.S. Geological Survey (USGS) and its partners was held June 14-16, 2005, in Denver, CO, to discuss science issues and needs related to agricultural practices. The goals of the meeting were to learn about the (1) effects of agricultural practices on the environment and (2) tools...
Simulation and particle-tracking analysis of ground-water flow near the Savannah River site, Georgia and South Carolina, 2002, and for selected ground-water management scenarios, 2002 and 2020
Gregory S. Cherry
2006, Scientific Investigations Report 2006-5195
Ground-water flow under 2002 hydrologic conditions was evaluated in an eight-county area in Georgia and South Carolina near the Savannah River Site (SRS), by updating boundary conditions and pumping rates in an existing U.S. Geological Survey (USGS) ground-water model. The original ground-water model, developed to simulate hydrologic conditions during 1987-92,...
Review of Trace Element Blank and Replicate Data Collected in Ground and Surface Water for the National Water-Quality Assessment Program, 1991-2002
Lori E. Apodaca, David K. Mueller, Michael T. Koterba
2006, Scientific Investigations Report 2006-5093
The trace elements Sb, Be, and Tl in ground water and Sb, Be, Co, Mo, and U in surface water are unaffected by contamination. Limited quality control data (blanks) for Li and V in ground water and surface water do not allow for a good assessment on the potential contamination...
Numerical Simulation of the Hydrologic Effects of Redistributed and Additional Ground-Water Withdrawal, Island of Molokai, Hawaii
Delwyn S. Oki
2006, Scientific Investigations Report 2006-5177
Because of increased demand for water associated with a growing population, projected increases in demand over the next few decades, and rising salinity of the water pumped from some existing wells, the County of Maui Department of Water Supply (DWS) is currently (2006) considering drilling additional wells to replace or...
Estimate of ground water in storage in the Great Lakes basin, United States, 2006
William F. Coon, Rodney A. Sheets
2006, Scientific Investigations Report 2006-5180
Hydrogeologic data from Regional Aquifer System Analyses (RASA) studies by the U.S. Geological Survey in the Great Lakes Basin, United States, during 1978-95, were compiled and used to estimate the total volume of water that is stored in the many aquifers of the basin. These studies focused on six regional...
Evaluation of well-purging effects on water-quality results for samples collected from the eastern Snake River Plain aquifer underlying the Idaho National Laboratory, Idaho
LeRoy L. Knobel
2006, Scientific Investigations Report 2006-5232
This report presents qualitative and quantitative comparisons of water-quality data from the Idaho National Laboratory, Idaho, to determine if the change from purging three wellbore volumes to one wellbore volume has a discernible effect on the comparability of the data. Historical water-quality data for 30 wells were visually compared to...
An update of the distribution of selected radiochemical and chemical constituents in perched ground water, Idaho National Laboratory, Idaho, Emphasis 1999-2001
Linda C. Davis
2006, Scientific Investigations Report 2006-5236
Radiochemical and chemical wastes generated at facilities at the Idaho National Laboratory (INL) were discharged since 1952 to infiltration ponds at the Reactor Technology Complex (RTC) (known as the Test Reactor Area [TRA] until 2005), and the Idaho Nuclear Technology and Engineering Center (INTEC) and buried at the Radioactive Waste...
Concentrations, and estimated loads and yields of nutrients and suspended sediment in the Little River basin, Kentucky, 2003-04
Angela S. Crain
2006, Scientific Investigations Report 2006-5204
Nutrients, primarily nitrogen and phosphorus compounds, naturally occur but also are applied to land in the form of commercial fertilizers and livestock waste to enhance plant growth. Concentrations, estimated loads and yields, and sources of nitrite plus nitrate, total phosphorus, and orthophosphate were evaluated in streams of the Little River...
Preliminary volcano-hazard assessment for the Emmons Lake volcanic center, Alaska
Christopher Waythomas, Thomas P. Miller, Margaret T. Mangan
2006, Scientific Investigations Report 2006-5248
The Emmons Lake volcanic center is a large stratovolcano complex on the Alaska Peninsula near Cold Bay, Alaska. The volcanic center includes several ice- and snow-clad volcanoes within a nested caldera structure that hosts Emmons Lake and truncates a shield-like ancestral Mount Emmons edifice. From northeast to southwest, the main...
Effects of Surface-Water Diversion and Ground-Water Withdrawal on Streamflow and Habitat, Punaluu Stream, Oahu, Hawaii
Delwyn S. Oki, Reuben H. Wolff, John M. Perreault
2006, Scientific Investigations Report 2006-5153
The surface- and ground-water resources of the Punaluu area of northeast Oahu, Hawaii, have been and continue to be important for cultural, domestic, agricultural, recreational, and aesthetic purposes. Punaluu Stream flows perennially because rain falls frequently in the area and ground water discharges to the stream. Flow in Punaluu Stream...
Evaluation of baseline ground-water conditions in the Mosteiros, Ribeira Paul, and Ribeira Fajã Basins, Republic of Cape Verde, West Africa, 2005-06
Victor M. Heilweil, John D. Earle, Jay R. Cederberg, Mickey M. Messer, Brent E. Jorgensen, Ingrid M. Verstraeten, Miguel A. Moura, Arrigo Querido, Spencer, Tatiana Osorio
2006, Scientific Investigations Report 2006-5207
This report documents current (2005-06) baseline ground-water conditions in three basins within the West African Republic of Cape Verde (Mosteiros on Fogo, Ribeira Paul on Santo Antão, and Ribeira Fajã on São Nicolau) based on existing data and additional data collected during this study. Ground-water conditions (indicators) include ground-water levels,...
Simulation of daily pesticide concentrations from watershed characteristics and monthly climatic data
Aldo V. Vecchia, Charles G. Crawford
2006, Scientific Investigations Report 2006-5181
A time-series model was developed to simulate daily pesticide concentrations for streams in the coterminous United States. The model was based on readily available information on pesticide use, climatic variability, and watershed charac-teristics and was used to simulate concentrations for four herbicides [atrazine, ethyldipropylthiocarbamate (EPTC), metolachlor, and trifluralin] and three...
Instream flow characterization of Upper Salmon River basin streams, central Idaho, 2005
Terry R. Maret, Jon Hortness, Douglas S. Ott
2006, Scientific Investigations Report 2006-5230
Anadromous fish populations in the Columbia River Basin have plummeted in the last 100 years. This severe decline led to Federal listing of Chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (Oncorhynchus mykiss) stocks as endangered or threatened under the Endangered Species Act (ESA) in the 1990s. Historically, the upper Salmon...
Interferograms showing land subsidence and uplift in Las Vegas Valley, Nevada, 1992-99
Michael T. Pavelko, Jorn Hoffmann, Nancy A. Damar
2006, Scientific Investigations Report 2006-5218
The U.S. Geological Survey, in cooperation with the Nevada Department of Conservation and Natural Resources-Division of Water Resources and the Las Vegas Valley Water District, compiled 44 individual interferograms and 1 stacked interferogram comprising 29 satellite synthetic aperture radar acquisitions of Las Vegas Valley, Nevada, from 1992 to 1999. The...
