Phreatophytic land-cover map of the northern and central Great Basin Ecoregion: California, Idaho, Nevada, Utah, Oregon, and Wyoming
Amy M. Mathie, Toby L. Welborn, David D. Susong, Mary L. Tumbusch
2011, Scientific Investigations Map 3169
Increasing water use and changing climate in the Great Basin of the western United States are likely affecting the distribution of phreatophytic vegetation in the region. Phreatophytic plant communities that depend on groundwater are susceptible to natural and anthropogenic changes to hydrologic flow systems. The purpose of this report is...
Refinement and evaluation of the Massachusetts firm-yield estimator model version 2.0
Sara B. Levin, Stacey A. Archfield, Andrew J. Massey
2011, Scientific Investigations Report 2011-5125
The firm yield is the maximum average daily withdrawal that can be extracted from a reservoir without risk of failure during an extended drought period. Previously developed procedures for determining the firm yield of a reservoir were refined and applied to 38 reservoir systems in Massachusetts, including 25 single- and...
Geologic map of the eastern half of the Vail 30' x 60' quadrangle, Eagle, Summit, and Grand Counties, Colorado
Karl S. Kellogg, Ralph R. Shroba, Wayne R. Premo, Bruce Bryant
2011, Scientific Investigations Map 3170
Recent mapping and geochronologic studies for the eastern half of the Vail 1:100,000-scale quadrangle have significantly improved our understanding of (1) Paleoproterozoic history of the basement rocks of the Gore Range and Williams Fork Mountains (western margin of the Front Range), (2) the Late Paleozoic history of the Gore fault...
Hydrogeology and simulation of groundwater flow in the Arbuckle-Simpson aquifer, south-central Oklahoma
Scott Christenson, Noel I. Osborn, Christopher R. Neel, Jason R. Faith, Charles D. Blome, James Puckette, Michael P. Pantea
2011, Scientific Investigations Report 2011-5029
The Arbuckle-Simpson aquifer in south-central Oklahoma provides water for public supply, farms, mining, wildlife conservation, recreation, and the scenic beauty of springs, streams, and waterfalls. Proposed development of water supplies from the aquifer led to concerns that large-scale withdrawals of water would cause decreased flow in rivers and springs, which...
A multi-year analysis of passage and survival at McNary Dam, 2004-09
Noah S. Adams, C. E. Walker, R.W. Perry
2011, Open-File Report 2011-1230
We analyzed 6 years (2004–09) of passage and survival data collected at McNary Dam to determine how dam operations and environmental conditions affect passage and survival of juvenile salmonids. A multinomial logistic regression was used to examine how environmental variables and dam operations relate to passage behavior of juvenile salmonids...
Investigation of pier scour in coarse-bed streams in Montana, 2001 through 2007
Stephen R. Holnbeck
2011, Scientific Investigations Report 2011-5107
A primary goal of ongoing field research of bridge scour is improvement of scour-prediction equations so that pier-scour depth is predicted accurately-an important element of hydraulic analysis and design of highway bridges that cross streams, rivers, and other waterways. Scour depth for piers in streambeds with a mixture of sand,...
Floor of Lake Tahoe, California and Nevada
Peter Dartnell, Helen Gibbons
2011, General Information Product 132
Lake-floor depths shown by color, from light tan (shallowest) to blue (deepest). Arrows on map (C) show orientations of perspective views. A, view toward McKinney Bay over blocks tumbled onto the lake floor by a massive landslide 10s to 100s of thousands of years ago; dark triangular block near center...
Lagrangian sampling of wastewater treatment plant effluent in Boulder Creek, Colorado, and Fourmile Creek, Iowa, during the summer of 2003 and spring of 2005— Hydrological and water-quality data
Larry B. Barber, Steffanie H. Keefe, Dana W. Kolpin, Douglas J. Schnoebelen, Jennifer L. Flynn, Gregory K. Brown, Edward T. Furlong, Susan T. Glassmeyer, James L. Gray, Michael T. Meyer, Mark W. Sandstrom, Howard E. Taylor, Steven D. Zaugg
2011, Open-File Report 2011-1054
This report presents methods and data for a Lagrangian sampling investigation into chemical loading and in-stream attenuation of inorganic and organic contaminants in two wastewater treatment-plant effluent-dominated streams: Boulder Creek, Colorado, and Fourmile Creek, Iowa. Water-quality sampling was timed to coincide with low-flow conditions when dilution of the wastewater treatment-plant...
Groundwater recharge in Wisconsin— Annual estimates for 1970–99 using streamflow data
Warren A. Gebert, John F. Walker, Randall J. Hunt
2011, Fact Sheet 2009-3092
The groundwater component of streamflow is important because it is indicative of the sustained flow of a stream during dry periods, is often of better quality, and has a smaller range of temperatures, than surface contributions to streamflow. All three of these characteristics are important to the health of aquatic...
Summary report of responses of key resources to the 2000 Low Steady Summer Flow experiment, along the Colorado River downstream from Glen Canyon Dam, Arizona
Barbara E. Ralston
2011, Open-File Report 2011-1220
In the spring and summer of 2000, a series of steady discharges of water from Glen Canyon Dam on the Colorado River were used to evaluate the effects of aquatic habitat stability and water temperatures on native fish growth and survival, with a special focus on the endangered humpback chub...
Spring runoff water-chemistry data from the Standard Mine and Elk Creek, Gunnison County, Colorado, 2010
Andrew H. Manning, Philip L. Verplanck, M. Alisa Mast, Joseph Marsik, R. Blaine McCleskey
2011, Open-File Report 2011-1159
Water samples were collected approximately every two weeks during the spring of 2010 from the Level 1 portal of the Standard Mine and from two locations on Elk Creek. The objective of the sampling was to: (1) better define the expected range and timing of variations in pH and metal...
Probability and volume of potential postwildfire debris flows in the 2011 Wallow burn area, eastern Arizona
Barbara C. Ruddy
2011, Open-File Report 2011-1214
This report presents a preliminary emergency assessment of the debris-flow hazards from drainage basins burned in 2011 by the Wallow wildfire in eastern Arizona. Empirical models derived from statistical evaluation of data collected from recently burned drainage basins throughout the intermountain western United States were used to estimate the probability...
Estimating 1970-99 average annual groundwater recharge in Wisconsin using streamflow data
Warren A. Gebert, John F. Walker, James L. Kennedy
2011, Open-File Report 2009-1210
Average annual recharge in Wisconsin for the period 1970-99 was estimated using streamflow data from U.S. Geological Survey continuous-record streamflow-gaging stations and partial-record sites. Partial-record sites have discharge measurements collected during low-flow conditions. The average annual base flow of a stream divided by the drainage area is a good approximation...
Field evaluation of the error arising from inadequate time averaging in the standard use of depth-integrating suspended-sediment samplers
David J. Topping, David M. Rubin, Scott Wright, Theodore S. Melis
2011, Professional Paper 1774
Several common methods for measuring suspended-sediment concentration in rivers in the United States use depth-integrating samplers to collect a velocity-weighted suspended-sediment sample in a subsample of a river cross section. Because depth-integrating samplers are always moving through the water column as they collect a sample, and can collect only a...
Probability and volume of potential postwildfire debris flows in the 2011 Horseshoe II burn area, southeastern Arizona
Barbara C. Ruddy
2011, Open-File Report 2011-1197
This report presents a preliminary emergency assessment of the debris-flow hazards from drainage basins burned in 2011 by the Horseshoe II wildfire in southeastern Arizona. Empirical models derived from statistical evaluation of data collected from recently burned drainage basins throughout the intermountain western United States were used to estimate the...
Updated one-dimensional hydraulic model of the Kootenai River, Idaho: A supplement to Scientific Investigations Report 2005-5110
Christiana R. Czuba, Gary J. Barton
2011, Scientific Investigations Report 2011-5128
The Kootenai Tribe of Idaho, in cooperation with local, State, Federal, and Canadian agency co-managers and scientists, is assessing the feasibility of a Kootenai River habitat restoration project in Boundary County, Idaho. The restoration project is focused on recovery of the endangered Kootenai River white sturgeon (Acipenser transmontanus) population, and...
Map of debris flows caused by rainfall during 1996 in parts of the Reedsport and Deer Head Point quadrangles, Douglas County, southern Coast Range, Oregon
Jeffrey A. Coe, John A. Michael, Marianela Mercado Burgos
2011, Open-File Report 2011-1150
This 1:12,000-scale map shows an inventory of debris flows caused by rainfall during 1996 in a 94.4 km2 area in the southern Coast Range of Oregon. This map and associated digital data are part of a larger U.S. Geological Survey study of debris flows in the southern Coast Range. Available...
Simulation of streamflow, evapotranspiration, and groundwater recharge in the Lower Frio River watershed, south Texas, 1961-2008
Joy S. Lizarraga, Darwin J. Ockerman
2011, Scientific Investigations Report 2011-5093
The U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers, Fort Worth District; the City of Corpus Christi; the Guadalupe-Blanco River Authority; the San Antonio River Authority; and the San Antonio Water System, configured, calibrated, and tested a watershed model for a study area consisting of about...
Constraining the age and magnitude of uplift in the northern National Petroleum Reserve in Alaska (NPRA): Apatite fission-track analysis of samples from three wells
David W. Houseknecht, Kenneth J. Bird, Paul O'Sullivan
2011, Professional Paper 1784-A
A broad, post-mid-Cretaceous uplift is defined in the northern National Petroleum Reserve in Alaska (NPRA) by regional truncation of Cretaceous strata, thermal maturity patterns, and amounts of exhumation estimated from sonic logs. Apatite fission-track (AFT) analysis of samples from three wells (South Meade No. 1, Topagoruk No. 1, and Ikpikpuk...
Seismic calibration shots conducted in 2009 in the Imperial Valley, southern California, for the Salton Seismic Imaging Project (SSIP)
Janice Murphy, Mark Goldman, Gary Fuis, Michael Rymer, Robert Sickler, Summer Miller, Lesley Butcher, Jason Ricketts, Coyn Criley, Joann Stock, John Hole, Greg Chavez
2011, Open-File Report 2010-1295
Rupture of the southern section of the San Andreas Fault, from the Coachella Valley to the Mojave Desert, is believed to be the greatest natural hazard facing California in the near future. With an estimated magnitude between 7.2 and 8.1, such an event would result in violent shaking, loss of...
Water availability and use pilot: Methods development for a regional assessment of groundwater availability, southwest alluvial basins, Arizona
Fred D. Tillman, Jeffrey T. Cordova, Stanley A. Leake, Blakemore E. Thomas, James B. Callegary
2011, Scientific Investigations Report 2011-5071
Executive Summary: Arizona is located in an arid to semiarid region in the southwestern United States and is one of the fastest growing States in the country. Population in Arizona surpassed 6.5 million people in 2008, an increase of 140 percent since 1980, when the last regional U.S. Geological...
Geophysical logs and water-quality data collected for boreholes Kimama-1A and -1B, and a Kimama water supply well near Kimama, southern Idaho
Brian V. Twining, Roy C. Bartholomay
2011, Data Series 622
In September 2010, a research consortium led by scientists from Utah State University began drilling the first of three continuously cored boreholes on the Snake River Plain in southern Idaho. The goals of this effort, the Snake River Scientific Drilling Project, are to study the interaction between the Earth's crust...
Hydrogeologic framework and hydrologic budget components of the Columbia Plateau Regional Aquifer System, Washington, Oregon, and Idaho
S. C. Kahle, D. S. Morgan, W.B. Welch, D.M. Ely, S.R. Hinkle, J. J. Vaccaro, L.L. Orzol
2011, Scientific Investigations Report 2011-5124
The Columbia Plateau Regional Aquifer System (CPRAS) covers an area of about 44,000 square miles in a structural and topographic basin within the drainage of the Columbia River in Washington, Oregon, and Idaho. The primary aquifers are basalts of the Columbia River Basalt Group (CRBG) and overlying sediment. Eighty percent...
Hydrogeologic framework, groundwater movement, and water budget in the Chimacum Creek basin and vicinity, Jefferson County, Washington
Joseph L. Jones, Wendy B. Welch, Lonna M. Frans, Theresa D. Olsen
2011, Scientific Investigations Report 2011-5129
This report presents information used to characterize the groundwater flow system in the Chimacum Creek basin. It includes descriptions of the geology and hydrogeologic framework; groundwater recharge and discharge; groundwater levels and flow directions; seasonal fluctuations in groundwater level; interactions between aquifers and the surface-water system; and a groundwater budget....
Surficial geologic map of the Elizabethtown 30' x 60' quadrangle, North Carolina
Robert E. Weems, William C. Lewis, E. Allen Crider
2011, Open-File Report 2011-1121
The Elizabethtown 30' x 60' quadrangle is located in southeastern North Carolina between Fayetteville and Wilmington. Most of the area is flat to gently rolling, although steep slopes occur locally along some of the larger streams. Total relief in the area is slightly over 210 feet (ft), with elevations ranging...
