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: 18470
Comparison of temporal trends in VOCs as measured with PDB samplers and low-flow sampling methods
Analysis of temporal trends in tetrachloroethylene (PCE) concentration determined by two sample techniques showed that passive diffusion bag (pdb) samplers adequately sample the large variation in PCE concentrations at the site. The slopes of the temporal trends in concentrations were comparable between the two techniques, and the pdb sample concentration generally reflected the instantaneous conc
Authors
P. T. Harte
Transport and fate of nitrate in a glacial outwash aquifer in relation to ground water age, land use practices, and redox processes
A combination of ground water modeling, chemical and dissolved gas analyses, and chlorofluorocarbon age dating of water was used to determine the relation between changes in agricultural practices, and NO−3 concentrations in ground water of a glacial outwash aquifer in west-central Minnesota. The results revealed a redox zonation throughout the saturated zone with oxygen reduction occurring near t
Authors
Larry J. Puckett, Timothy K. Cowdery
Bedform movement recorded by sequential single-beam surveys in tidal rivers
A portable system for bedform-mapping was evaluated in the delta of the lower Sacramento and San Joaquin Rivers, California, from 1998 to 2000. Bedform profiles were surveyed with a two-person crew using an array of four single-beam transducers on boats about 6 m in length. Methods for processing the bedform profiles into maps with geographic coordinates were developed for spreadsheet programs and
Authors
R.L. Dinehart
Atrazine and metolachlor occurrence in shallow ground water of the United States, 1993 to 1995: Relations to explanatory factors
Since 1991, the U.S. Geological Survey has been conducting the National Water Quality Assessment (NAWQA) Program to determine the quality of the Nation's water resources. In an effort to obtain a better understanding of why pesticides are found in shallow ground water on a national scale, a set of factors likely to affect the fate and transport of two herbicides in the subsurface were examined. At
Authors
D.W. Kolpin, J.E. Barbash, R. J. Gilliom
VOCs, pesticides, nitrate, and their mixtures in groundwater used for drinking water in the United States
Samples of untreated groundwater from 1255 domestic drinking-water wells and 242 public supply wells were analyzed as part of the National Water-Quality Assessment Program of the U.S. Geological Survey between 1992 and 1999. Wells were sampled to define the regional quality of the groundwater resource and, thus, were distributed geographically across large aquifers, primarily in rural areas. For e
Authors
P. J. Squillace, J. C. Scott, M.J. Moran, B. T. Nolan, D.W. Kolpin
Fish communities of the Sacramento River Basin: Implications for conservation of native fishes in the Central Valley, California
The associations of resident fish communities with environmental variables and stream condition were evaluated at representative sites within the Sacramento River Basin, California between 1996 and 1998 using multivariate ordination techniques and by calculating six fish community metrics. In addition, the results of the current study were compared with recent studies in the San Joaquin River drai
Authors
J. T. May, L. R. Brown
New York water-use program and data, 1995
No abstract available.
Authors
Deborah S. Lumia, K.S. Linsey
Estimation of nitrogen yields and loads from basins draining to Long Island Sound, 1988–98
Monitoring data on total nitrogen concentrations
and streamflow were used to estimate annual
nonpoint nitrogen loads for 1988?98 at 28 monitoring
sites and 26 unmonitored basins that drain
to Long Island Sound. The estimated total nitrogen
yields at monitoring sites were used with basin
characteristics and ancillary data to develop a
multiple-linear regression equation to estimate
nonpoint
Authors
John R. Mullaney, Gregory E. Schwarz, Elaine C. Todd Trench
Structural-group quantitation by CP/MAS 13C NMR measurements of dissolved organic matter from natural waters
No abstract available.
Authors
R. L. Wershaw, George R. Aiken, J. A. Leenheer, J. Tregellas
Property transfer from particle and aggregate size to water retention [property-transfer models]
No abstract available.
Authors
John R. Nimmo
Ground-water conditions in Utah, spring of 2002
This is the thirty-ninth in a series of annual reports that describe ground-water conditions in Utah. Reports in this series, published cooperatively by the U.S. Geological Survey and the Utah Department of Natural Resources, Division of Water Resources and Division of Water Rights, provide data to enable interested parties to maintain awareness of changing ground-water conditions.This report, lik
Authors
Carole B. Burden, Michael Enright, M.R. Danner, M.J. Fisher, Peter L. Haraden, T.A. Kenney, C.D. Wilkowske, Robert J. Eacret, Paul Downhour, B.A. Slaugh, R.L. Swenson, J.H. Howells, H.K. Christiansen