Alpha-emitting isotopes and chromium in a coastal California aquifer
Jill N. Densmore, John A. Izbicki, Joseph M. Murtaugh, Peter W. Swarzenski, Thomas D. Bullen
2014, Applied Geochemistry (51) 204-215
The unadjusted 72-h gross alpha activities in water from two wells completed in marine and alluvial deposits in a coastal southern California aquifer 40 km north of San Diego were 15 and 25 picoCuries per liter (pCi/L). Although activities were below the Maximum Contaminant Level (MCL) of 15 pCi/L, when adjusted for uranium...
Relations of water-quality constituent concentrations to surrogate measurements in the lower Platte River corridor, Nebraska, 2007 through 2011
Nathaniel J. Schaepe, Philip J. Soenksen, David L. Rus
2014, Open-File Report 2014-1149
The lower Platte River, Nebraska, provides drinking water, irrigation water, and in-stream flows for recreation, wildlife habitat, and vital habitats for several threatened and endangered species. The U.S. Geological Survey (USGS), in cooperation with the Lower Platte River Corridor Alliance (LPRCA) developed site-specific regression models for water-quality constituents at four...
California State Waters Map Series — Offshore of Half Moon Bay, California
Guy R. Cochrane, Peter Dartnell, H. Gary Greene, Samuel Y. Johnson, Nadine E. Golden, Stephen R. Hartwell, Bryan E. Dieter, Michael W. Manson, Ray W. Sliter, Stephanie L. Ross, Janet Watt, Charles A. Endris, Rikk G. Kvitek, Eleyne L. Phillips, Mercedes D. Erdey, John L. Chin, Carrie K. Bretz
2014, Open-File Report 2014-1214
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration,...
Documentation of a groundwater flow model (SJRRPGW) for the San Joaquin River Restoration Program study area, California
Jonathan A. Traum, Steven P. Phillips, George L. V Bennett V, Celia Zamora, Loren F. Metzger
2014, Scientific Investigations Report 2014-5148
To better understand the potential effects of restoration flows on existing drainage problems, anticipated as a result of the San Joaquin River Restoration Program (SJRRP), the U.S. Geological Survey (USGS), in cooperation with the U.S. Bureau of Reclamation (Reclamation), developed a groundwater flow model (SJRRPGW) of the SJRRP study area...
Simulation of groundwater flow and the interaction of groundwater and surface water in the Willamette Basin and Central Willamette subbasin, Oregon
Nora B. Herrera, Erick R. Burns, Terrence D. Conlon
2014, Scientific Investigations Report 2014-5136
Full appropriation of tributary streamflow during summer, a growing population, and agricultural needs are increasing the demand for groundwater in the Willamette Basin. Greater groundwater use could diminish streamflow and create seasonal and long-term declines in groundwater levels. The U.S. Geological Survey (USGS) and the Oregon Water Resources Department (OWRD)...
Hydrogeologic framework and occurrence, movement, and chemical characterization of groundwater in Dixie Valley, west-central Nevada
Jena M. Huntington, C. Amanda Garcia, Michael R. Rosen
2014, Scientific Investigations Report 2014-5152
Dixie Valley, a primarily undeveloped basin in west-central Nevada, is being considered for groundwater exportation. Proposed pumping would occur from the basin-fill aquifer. In response to proposed exportation, the U.S. Geological Survey, in cooperation with the Bureau of Reclamation and Churchill County, conducted a study to improve the understanding of...
Concentration and flux of total and dissolved phosphorus, total nitrogen, chloride, and total suspended solids for monitored tributaries of Lake Champlain, 1990-2012
Laura Medalie
2014, Open-File Report 2014-1209
Annual and daily concentrations and fluxes of total and dissolved phosphorus, total nitrogen, chloride, and total suspended solids were estimated for 18 monitored tributaries to Lake Champlain by using the Weighted Regressions on Time, Discharge, and Seasons regression model. Estimates were made for 21 or 23 years, depending on data...
Geologic and hydrogeologic frameworks of the Biscayne aquifer in central Miami-Dade County, Florida
Michael A. Wacker, Kevin J. Cunningham, John Williams
2014, Scientific Investigations Report 2014-5138
Evaluations of the lithostratigraphy, lithofacies, paleontology, ichnology, depositional environments, and cyclostratigraphy from 11 test coreholes were linked to geophysical interpretations, and to results of hydraulic slug tests of six test coreholes at the Snapper Creek Well Field (SCWF), to construct geologic and hydrogeologic frameworks for the study area in central...
Hydrogeology, water resources, and water budget of the upper Rio Hondo Basin, Lincoln County, New Mexico, 2010
Michael J. Darr, Kurt J. McCoy, Gordon W. Rattray, Roger A. Durall
2014, Scientific Investigations Report 2014-5153
The upper Rio Hondo Basin occupies a drainage area of 585 square miles in south-central New Mexico and comprises three general hydrogeologic terranes: the higher elevation “Mountain Block,” the “Central Basin” piedmont area, and the lower elevation “Hondo Slope.” As many as 12 hydrostratigraphic units serve as aquifers locally and...
Estimated monthly streamflows for selected locations on the Kabul and Logar Rivers, Aynak copper, cobalt, and chromium area of interest, Afghanistan, 1951-2010
Kevin C. Vining, Aldo V. Vecchia
2014, Scientific Investigations Report 2014-5157
The U.S. Geological Survey, in cooperation with the U.S. Department of Defense Task Force for Business and Stability Operations, used the stochastic monthly water-balance model and existing climate data to estimate monthly streamflows for 1951–2010 for selected streamgaging stations located within the Aynak copper, cobalt, and chromium area of interest...
User's manual for the upper Delaware River riverine environmental flow decision support system (REFDSS), Version 1.1.2
Colin Talbert, Kelly O. Maloney, Chris Holmquist-Johnson, Leanne Hanson
2014, Open-File Report 2014-1183
Between 2002 and 2006, the Fort Collins Science Center (FORT) at the U.S. Geological Survey (USGS) conducted field surveys, organized workshops, and performed analysis of habitat for trout and shad in the Upper Delaware River Basin. This work culminated in the development of decision support system software (the Delaware River...
Groundwater and surface-water interaction and potential for underground water storage in the Buena Vista-Salida Basin, Chaffee County, Colorado, 2011
Kenneth R. Watts, Tamara I. Ivahnenko, Stogner, James F. Bruce
2014, Scientific Investigations Report 2014-5095
By 2030, the population of the Arkansas Headwaters Region, which includes all of Chaffee and Lake Counties and parts of Custer, Fremont, and Park Counties, Colorado, is forecast to increase about 73 percent. As the region’s population increases, it is anticipated that groundwater will be used to meet much of...
The National Map hydrography data stewardship: what is it and why is it important?
Dave Arnold
2014, Fact Sheet 2014-3084
The National Hydrography Dataset (NHD) and Watershed Boundary Dataset (WBD) were designed and populated by a large consortium of agencies involved in hydrography across the United States. The effort was led by the U.S. Geological Survey (USGS), the U.S. Environmental Protection Agency (EPA), and the Natural Resources Conservation Service (NRCS)....
Data compilation for assessing sediment and toxic chemical loads from the Green River to the lower Duwamish Waterway, Washington
Kathleen E. Conn, Robert W. Black
2014, Data Series 880
Between February and June 2013, the U.S. Geological Survey collected representative samples of whole water, suspended sediment, and (or) bed sediment from a single strategically located site on the Duwamish River, Washington, during seven periods of different flow conditions. Samples were analyzed by Washington-State-accredited laboratories for a large suite of...
Concentrations, loads, and yields of total phosphorus, total nitrogen, and suspended sediment and bacteria concentrations in the Wister Lake Basin, Oklahoma and Arkansas, 2011-13
Stephanie D. Buck
2014, Scientific Investigations Report 2014-5170
The Poteau Valley Improvement Authority uses Wister Lake in southeastern Oklahoma as a public water supply. Total phosphorus, total nitrogen, and suspended sediments from agricultural runoff and discharges from wastewater treatment plants and other sources have degraded water quality in the lake. As lake-water quality has degraded, water-treatment cost, chemical...
Hydrologic conditions in urban Miami-Dade County, Florida, and the effect of groundwater pumpage and increased sea level on canal leakage and regional groundwater flow
Joseph D. Hughes, Jeremy T. White
2014, Scientific Investigations Report 2014-5162
The extensive and highly managed surface-water system in southeastern Florida constructed during the 20th Century has allowed for the westward expansion of urban and agricultural activities in Miami-Dade County. In urban areas of the county, the surface-water system is used to (1) control urban flooding, (2) supply recharge to production...
Methods for estimating annual exceedance-probability discharges and largest recorded floods for unregulated streams in rural Missouri
Rodney E. Southard, Andrea G. Veilleux
2014, Scientific Investigations Report 2014-5165
Regression analysis techniques were used to develop a set of equations for rural ungaged stream sites for estimating discharges with 50-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities, which are equivalent to annual flood-frequency recurrence intervals of 2, 5, 10, 25, 50, 100, 200, and 500...
Post-Hurricane Sandy coastal oblique aerial photographs collected from Cape Lookout, North Carolina, to Montauk, New York, November 4-6, 2012
Karen L.M. Morgan, M. Dennis Krohn
2014, Data Series 858
The U.S. Geological Survey (USGS) conducts baseline and storm response photography missions to document and understand the changes in vulnerability of the Nation's coasts to extreme storms. On November 4-6, 2012, approximately one week after the landfall of Hurricane Sandy, the USGS conducted an oblique aerial photographic survey from Cape...
Base of principal aquifer for parts of the North Platte, South Platte, and Twin Platte Natural Resources Districts, western Nebraska
Christopher M. Hobza, Jared D. Abraham, James C. Cannia, Michaela R. Johnson, Steven S. Sibray
2014, Scientific Investigations Map 3310
Water resources in the North and South Platte River valleys of Nebraska, including the valley of Lodgepole Creek, are critical to the social and economic health of the area, and for the recovery of threatened and endangered species in the Platte River Basin. Groundwater and surface water are heavily used...
One-Water Hydrologic Flow Model (MODFLOW-OWHM)
Randall T. Hanson, Scott E. Boyce, Wolfgang Schmid, Joseph D. Hughes, Steffen W. Mehl, Stanley A. Leake, Thomas Maddock III, Richard G. Niswonger
2014, Techniques and Methods 6-A51
The One-Water Hydrologic Flow Model (MF-OWHM) is a MODFLOW-based integrated hydrologic flow model (IHM) that is the most complete version, to date, of the MODFLOW family of hydrologic simulators needed for the analysis of a broad range of conjunctive-use issues. Conjunctive use is the combined use of groundwater and surface...
Stream classification of the Apalachicola-Chattahoochee-Flint River System to support modeling of aquatic habitat response to climate change
Caroline M. Elliott, Robert B. Jacobson, Mary Freeman
2014, Scientific Investigations Report 2014-5080
A stream classification and associated datasets were developed for the Apalachicola-Chattahoochee-Flint River Basin to support biological modeling of species response to climate change in the southeastern United States. The U.S. Geological Survey and the Department of the Interior’s National Climate Change and Wildlife Science Center established the Southeast Regional Assessment...
Structure and vulnerability of Pacific Northwest tidal wetlands – A summary of wetland climate change research by the Western Ecology Division, U.S. EPA
Christina L Folger, Henry Lee II, Christopher N. Janousek, Deborah A. Reusser
2014, Report
Climate change poses a serious threat to the tidal wetlands of the Pacific Northwest (PNW) region of the U.S. In response to this threat, scientists at the Western Ecology Division of the U.S. EPA at and the Western Fisheries Research Center of the U.S. Geological Survey, along with other partners,...
An analysis of the potential for Glen Canyon Dam releases to inundate archaeological sites in the Grand Canyon, Arizona
Hoda A. Sondossi, Helen C. Fairley
2014, Open-File Report 2014-1193
The development of a one-dimensional flow-routing model for the Colorado River between Lees Ferry and Diamond Creek, Arizona in 2008 provided a potentially useful tool for assessing the degree to which varying discharges from Glen Canyon Dam may inundate terrestrial environments and potentially affect resources located within the zone of...
Three-dimensional model of the hydrostratigraphy and structure of the area in and around the U.S. Army-Camp Stanley Storage Activity Area, northern Bexar County, Texas
Michael P. Pantea, Charles D. Blome, Allan K. Clark
2014, Scientific Investigations Report 2014-5074
A three-dimensional model of the Camp Stanley Storage Activity area defines and illustrates the surface and subsurface hydrostratigraphic architecture of the military base and adjacent areas to the south and west using EarthVision software. The Camp Stanley model contains 11 hydrostratigraphic units in descending order: 1 model layer representing the...
California State Waters Map Series — Offshore of San Gregorio, California
Guy R. Cochrane, Peter Dartnell, H. Gary Greene, Janet Watt, Nadine E. Golden, Charles A. Endris, Eleyne L. Phillips, Stephen R. Hartwell, Samuel Y. Johnson, Rikk G. Kvitek, Mercedes D. Erdey, Carrie K. Bretz, Michael W. Manson, Ray W. Sliter, Stephanie L. Ross, Bryan E. Dieter, John L. Chin, Susan A. Cochran
Guy R. Cochrane, Susan A. Cochran, editor(s)
2014, Scientific Investigations Map 3306
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California's State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration,...
