Publications
This list of Water Resources Mission Area publications includes both official USGS publications and journal articles authored by our scientists. A searchable database of all USGS publications can be accessed at the USGS Publications Warehouse.
Filter Total Items: 18468
Water Resources Data, South Carolina, Water Year 1993
No abstract available.
Authors
C.S. Bennett, T.W. Cooney, K.H. Jones, P.A. Drewes
Seasonal variations of Zn/Cu ratios in acid mine water from Iron Mountain, California
Time-series data on Zn/Cu weight ratios from portal effluent compositions [(Zn/Cu)water] at Iron Mountain, California, show seasonal variations that can be related to the precipitation and dissolution of melanterite [(FeII,Zn,Cu)SO4·7H2O]. Mine water and actively forming melanterite were collected from underground mine workings and chemically analyzed. The temperature-dependent solubility of Zn-Cu
Authors
Charles N. Alpers, D. Kirk Nordstrom, J. Michael Thompson
Transport and natural attenuation of Cu, Zn, As, and Fe in the acid mine drainage of Leviathan and Bryant Creeks
The Leviathan and Bryant Creek (LBC) drainage system, on the border of California and Nevada, flows through overburden and waste from a former open-pit sulfur mine. The drainage contains acid mine waters with high concentrations of several trace elements, including Cu, Zn, and As, derived from oxidative weathering of sulfides in the wastes and altered bedrock. In June and October, 1982, the mainst
Authors
Jenny G. Webster, D. Kirk Nordstrom, Kathleen S. Smith
Using a Geographic Information System to determine the relation between stream quality and geology in the Roberts Creek watershed, Clayton County, Iowa
A geographic information system (GIS) was used to determine the relation between the stream-water quality and underlying geology in Roberts Creek watershed, Clayton County, Iowa, for base-flow conditions during the spring and summer of 1988–90. Geologic, stream, basin and subbasin boundaries, and water-quality sampling-site coverages were created by digitizing available maps. A contour coverage wa
Authors
Stephen J. Kalkhoff
Northern cornbelt sand plains Management Systems Evaluation Area
No abstract available.
Authors
H. W. Anderson, R.H. Dowdy, J.A. Lamb, G. N. Delin, Ray Knighton, David Clay, Birl Lowery
Hydrologic and land-use factors associated with herbicides and nitrate in near-surface aquifers
Selected herbicides, atrazine (2-chloro-4-ethylamino-6-isopropylamino-s-triazine) metabolites, and NO−3 were examined in near-surface unconsolidated and bedrock aquifers in the midcontinental USA to study the hydrogeologic, spatial, and seasonal distribution of these contaminants. Groundwater samples were collected from 303 wells during the spring and late summer of 1991. At least one herbicide or
Authors
Michael R. Burkart, Dana W. Kolpin
Application of a geographic information system in analyzing the occurrence of atrazine in groundwater of the mid-continental United States
The US Geological Survey, US Department of Agriculture, and US Environmental Protection Agency are conducting research and regional assessments in support of policy alternatives intended to protect water resources from agricultural chemical contamination. The mid-continent was selected because of the intense row crop agriculture and associated herbicide application in this region. An application o
Authors
M. R. Burkart, D.W. Kolpin
Occurrence of agricultural chemicals in ground water at the Princeton, Minnesota Management Systems Evaluation Area
No abstract available.
Authors
M.K. Landon, G. N. Delin, Lifeng Guo, C.P. Regan, J.A. Lamb, R.H. Dowdy, J. L. Anderson
Regional assessment of factors related to herbicides and nitrate in near-surface aquifers of the midcontinent
No abstract available.
Authors
M. R. Burkart, D.W. Kolpin
Helium isotope and gas discharge variations associated with crustal unrest in Long Valley Caldera, California, 1989-1992
The onset of anomalous seismic activity in 1989 beneath Mammoth Mountain on the southwestern rim of the Long Valley caldera, California, was followed within ∼4 months by a large increase in 3He/4He in vapor discharged from a fumarole on the north side of the mountain. The helium isotopic ratio at this vent rose to a maximum of 6.7 RA in July 1990 and subsequently declined to values near 5 RA. Pote
Authors
M. L. Sorey, B. M. Kennedy, W.C. Evans, C. D. Farrar, G.A. Suemnicht
Application of electromagnetic logging to contamination investigations in glacial sand-and-gravel aquifers
Electromagnetic (EM) logging provides an efficient method for high‐resolution, vertical delineation of electrically conductive contamination in glacial sand‐and‐gravel aquifers. LM. gamma, and lithologic logs and specific conductance data from sand‐and‐gravel aquifers at five sites in the northeastern United States were analyzed to define the relation of KM conductivity to aquifer lithology and wa
Authors
John H. Williams, Wayne W. Lapham, Thomas H. Barringer
Trinity River Basin, Texas
In 1991 the Trinity River Basin National Water-Quality Assessment (NAWQA) will include assessments of surface-water and ground-water quality. Initial efforts have focused on identifying water-quality issues in the basin and on the environmental factors underlying those issues. Physical characteristics described include climate, geology, soils, vegetation, physiography, and hydrology. Cultural char
Authors
Randy L. Ulery, Peter C. Van Metre, Allison S. Crossfield