Ground-Water Conditions and Studies in the Brunswick-Glynn County Area, Georgia, 2007
Gregory S. Cherry, John S. Clarke
2008, Open-File Report 2008-1297
The Upper Floridan aquifer is contaminated with saltwater in a 2-square-mile area of downtown Brunswick, Georgia. This contamination has limited the development of the ground-water supply in the Glynn County area. Hydrologic, geologic, and water-quality data are needed to effectively manage water resources. Since 1959, the U.S. Geological Survey has...
Ground-water quality data in the San Fernando-San Gabriel study unit, 2005— Results from the California GAMA program
Michael Land, Kenneth Belitz
2008, Data Series 356
Ground-water quality in the approximately 460 square mile San Fernando-San Gabriel study unit (SFSG) was investigated between May and July 2005 as part of the Priority Basin Assessment Project of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The GAMA Priority Basin Assessment Project was developed in response to the...
Streamflow conditions in the Guadalupe River Basin, south-central Texas, water years 1987-2006— An assessment of streamflow gains and losses and relative contribution of major springs to streamflow
Darwin J. Ockerman, Richard N. Slattery
2008, Scientific Investigations Report 2008-5165
The U.S. Geological Survey, in cooperation with the Edwards Aquifer Authority, assessed available streamflow data in the Guadalupe River Basin to determine streamflow gains and losses and the relative contribution of flow from major springs - Comal Springs, San Marcos Springs, and Hueco Springs - to streamflow in reaches of...
An evaluation of selected extraordinary floods in the United States reported by the U.S. Geological Survey and implications for future advancement of flood science
John E. Costa, Robert D. Jarrett
2008, Scientific Investigations Report 2008-5164
Thirty flood peak discharges determine the envelope curve of maximum floods documented in the United States by the U.S. Geological Survey. These floods occurred from 1927 to 1978 and are extraordinary not just in their magnitude, but in their hydraulic and geomorphic characteristics. The reliability of the computed discharge of...
Base of principal aquifer for the Elkhorn-Loup model area, North-Central Nebraska
V. L. McGuire, Steven M. Peterson
2008, Scientific Investigations Map 3042
In Nebraska, the water managers in the Natural Resources Districts and the Nebraska Department of Natural Resources are concerned with the effect of ground-water withdrawal on the availability of surface water and the long-term effects of ground-water withdrawal on ground- and surface-water resources. In north-central Nebraska, in the Elkhorn and...
Potential effects of a scenario earthquake on the economy of southern California: Intraregional commuter, worker, and earnings flow analysis
Benson C. Sherrouse, D. J. Hester
2008, Open-File Report 2008-1254
The Multi-Hazards Demonstration Project (MHDP) is a collaboration between the U.S. Geological Survey (USGS) and various partners from the public and private sectors and academia, meant to improve Southern California's resiliency to natural hazards (Jones and others, 2007). In support of the MHDP objectives, the ShakeOut Scenario was developed. It...
Selected Water- and Sediment-Quality, Aquatic Biology, and Mine-Waste Data from the Ely Copper Mine Superfund Site, Vershire, VT, 1998-2007
Denise M. Argue, Richard G. Kiah, Nadine M. Piatak, Robert R. Seal II, Jane M. Hammarstrom, Edward Hathaway, James F. Coles
2008, Data Series 378
The data contained in this report are a compilation of selected water- and sediment-quality, aquatic biology, and mine-waste data collected at the Ely Copper Mine Superfund site in Vershire, VT, from August 1998 through May 2007. The Ely Copper Mine Superfund site is in eastern, central Vermont (fig. 1) within...
StreamStats: A water resources web application
Kernell G. Ries III, John D. Guthrie, Alan H. Rea, Peter A. Steeves, David W. Stewart
2008, Fact Sheet 2008-3067
Streamflow statistics, such as the 1-percent flood, the mean flow, and the 7-day 10-year low flow, are used by engineers, land managers, biologists, and many others to help guide decisions in their everyday work. For example, estimates of the 1-percent flood (the flow that is exceeded, on average, once in...
Summary of annual mean and annual harmonic mean statistics of daily mean streamflow for 620 U.S. Geological Survey streamflow-gaging stations in Texas through water year 2007
William H. Asquith, Franklin T. Heitmuller
2008, Data Series 372
Analysts and managers of surface-water resources have interest in annual mean and annual harmonic mean statistics of daily mean streamflow for U.S. Geological Survey (USGS) streamflow-gaging stations in Texas. The mean streamflow represents streamflow volume, whereas the harmonic mean streamflow represents an appropriate statistic for assessing constituent concentrations that might...
Estimation of potential bridge scour at bridges on state routes in South Dakota, 2003-07
Ryan F. Thompson, Ryan L. Fosness
2008, Scientific Investigations Report 2008-5161
Flowing water can erode (scour) soils and cause structural failure of a bridge by exposing or undermining bridge foundations (abutments and piers). A rapid scour-estimation technique, known as the level-1.5 method and developed by the U.S. Geological Survey, was used to evaluate potential scour at bridges in South Dakota in...
Potentiometric Surface of the Ozark Aquifer in Northern Arkansas, 2007
Aaron L. Pugh
2008, Scientific Investigations Report 2008-5137
The Ozark aquifer in northern Arkansas is composed of dolomite, limestone, sandstone, and shale of Late Cambrian to Middle Devonian age, and ranges in thickness from approximately 1,100 feet to more than 4,000 feet. Hydrologically, the aquifer is complex, characterized by discrete and discontinuous flow components with large variations in...
Streamflow and Topographic Characteristics of the Platte River near Grand Island, Nebraska, 1938-2007
Brenda K. Woodward
2008, Scientific Investigations Report 2008-5106
The central Platte River is a dynamic, braided, sand-bed river located near Grand Island, Nebraska. An understanding of the Platte River channel characteristics, hydrologic flow patterns, and geomorphic conditions is important for the operation and management of water resources by the City of Grand Island. The north channel of the...
Recovery of Ground-Water Levels from 1988 to 2003 and Analysis of Effects of 2003 and Full-Allocation Withdrawals in Critical Area 2, Southern New Jersey
Frederick J. Spitz, Vincent T. dePaul
2008, Scientific Investigations Report 2008-5142
Water levels in the Potomac-Raritan-Magothy aquifer system within Water Supply Critical Area 2 in the southern New Jersey Coastal Plain have recovered as a result of reductions in ground-water withdrawals initiated in the early 1990s. The Critical Area consists of the depleted zone and the threatened margin. The Potomac-Raritan-Magothy aquifer...
PFReports: A program for systematic checking of annual peaks in NWISWeb
Karen R. Ryberg
2008, Open-File Report 2008-1284
The accuracy, characterization, and completeness of the U.S. Geological Survey (USGS) peak-flow data drive the determination of flood-frequency estimates that are used daily to design water and transportation infrastructure, delineate flood-plain boundaries, and regulate development and utilization of lands throughout the Nation and are essential to understanding the implications of...
Pesticides in Water and Suspended Sediment of the Alamo and New Rivers, Imperial Valley/Salton Sea Basin, California, 2006-2007
James L. Orlando, Kelly L. Smalling, Kathryn Kuivila
2008, Data Series 365
Water and suspended-sediment samples were collected at eight sites on the Alamo and New Rivers in the Imperial Valley/Salton Sea Basin of California and analyzed for both current-use and organochlorine pesticides by the U.S. Geological Survey. Samples were collected in the fall of 2006 and spring of 2007, corresponding to...
Ground-water quality data in the southeast San Joaquin Valley, 2005–2006— Results from the California GAMA program
Carmen A. Burton, Kenneth Belitz
2008, Data Series 351
Ground-water quality in the approximately 3,800 square-mile Southeast San Joaquin Valley study unit (SESJ) was investigated from October 2005 through February 2006 as part of the Priority Basin Assessment Project of Ground-Water Ambient Monitoring and Assessment (GAMA) Program. The GAMA Statewide Basin Assessment project was developed in response to the...
Source, Distribution, and Management of Arsenic in Water from Wells, Eastern San Joaquin Ground-Water Subbasin, California
John A. Izbicki, Christina L. Stamos, Loren F. Metzger, Keith J. Halford, Thomas R. Kulp, George L. V Bennett V
2008, Open-File Report 2008-1272
Between 1974 and 2001 water from as many as one-third of wells in the Eastern San Joaquin Ground Water Subbasin, about 80 miles east of San Francisco, had arsenic concentrations greater than the U.S. Environmental Protection Agency Maximum Contaminant Level (MCL) for arsenic of 10 micrograms per liter (ug/L). Water...
Estimated Flood Discharges and Map of Flood-Inundated Areas for Omaha Creek, near Homer, Nebraska, 2005
Benjamin J. Dietsch, Richard C. Wilson, Kellan R. Strauch
2008, Scientific Investigations Report 2008-5107
Repeated flooding of Omaha Creek has caused damage in the Village of Homer. Long-term degradation and bridge scouring have changed substantially the channel characteristics of Omaha Creek. Flood-plain managers, planners, homeowners, and others rely on maps to identify areas at risk of being inundated. To identify areas at risk for inundation...
Low-flow characteristics and regionalization of low-flow characteristics for selected streams in Arkansas
Jaysson E. Funkhouser, Ken Eng, Matthew W. Moix
2008, Scientific Investigations Report 2008-5065
Water use in Arkansas has increased dramatically in recent years. Since 1990, the use of water for all purposes except power generation has increased 53 percent (4,004 cubic feet per second in 1990 to 6,113 cubic feet per second in 2005). The biggest users are agriculture (90 percent), municipal...
Ground-Water Storage Change and Land Subsidence in Tucson Basin and Avra Valley, Southeastern Arizona, 1998-2002
Donald R. Pool, Mark T. Anderson
2008, Scientific Investigations Report 2007-5275
Gravity and land subsidence were measured annually at wells and benchmarks within two networks in Tucson Basin and Avra Valley from 1998 to 2002. Both networks are within the Tucson Active Management Area. Annual estimates of ground-water storage change, ground-water budgets, and land subsidence were made based on the data....
A Study of the Connection Among Basin-Fill Aquifers, Carbonate-Rock Aquifers, and Surface-Water Resources in Southern Snake Valley, Nevada
Water Resources Division, U.S. Geological Survey
2008, Fact Sheet 2008-3071
The Secretary of the Interior through the Southern Nevada Public Lands Management Act approved funding for research to improve understanding of hydrologic systems that sustain numerous water-dependent ecosystems on Federal lands in Snake Valley, Nevada. Some of the streams and spring-discharge areas in and adjacent to Great Basin National Park...
Water-chemistry data for selected springs, geysers, and streams in Yellowstone National Park, Wyoming, 2003-2005
James W. Ball, R. Blaine McCleskey, D. Kirk Nordstrom, JoAnn M. Holloway
2008, Open-File Report 2006-1339
Water analyses are reported for 157 samples collected from numerous hot springs, their overflow drainages, and Lemonade Creek in Yellowstone National Park (YNP) during 2003–2005. Water samples were collected and analyzed for major and trace constituents from ten areas of YNP including Terrace and Beryl Springs in the Gibbon Canyon...
Regression Analysis of Stage Variability for West-Central Florida Lakes
Laura A. Sacks, Donald L. Ellison, Amy Swancar
2008, Scientific Investigations Report 2008-5147
The variability in a lake's stage depends upon many factors, including surface-water flows, meteorological conditions, and hydrogeologic characteristics near the lake. An understanding of the factors controlling lake-stage variability for a population of lakes may be helpful to water managers who set regulatory levels for lakes. The goal of this...
Users Manual for the Geospatial Stream Flow Model (GeoSFM)
Guleid A. Artan, Kwabena Asante, Jodie Smith, Md Shahriar Pervez, Debbie Entenmann, James P. Verdin, James Rowland
2008, Open-File Report 2007-1440
The monitoring of wide-area hydrologic events requires the manipulation of large amounts of geospatial and time series data into concise information products that characterize the location and magnitude of the event. To perform these manipulations, scientists at the U.S. Geological Survey Center for Earth Resources Observation and Science (EROS), with...
Technical Manual for the Geospatial Stream Flow Model (GeoSFM)
Kwabena O. Asante, Guleid A. Artan, Md Shahriar Pervez, Christina Bandaragoda, James P. Verdin
2008, Open-File Report 2007-1441
The monitoring of wide-area hydrologic events requires the use of geospatial and time series data available in near-real time. These data sets must be manipulated into information products that speak to the location and magnitude of the event. Scientists at the U.S. Geological Survey Earth Resources Observation and Science (USGS...
