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Water resources data Maryland, Delaware, and Washington, D.C., water year 2003, volume 2. ground-water data
Water Resources Division, U.S. Geological Survey
2004, Water Data Report MD-DE-DC-03-2
Water resources data for the 2003 water year for Maryland, Delaware, and Washington, D.C. consist of records of water levels and water quality of ground-water wells. This report (Volume 2. Ground-Water Data) contains water levels at 386 observation wells, discharge records for 4 springs, and water quality at 185 wells....
Assessment of ground-water withdrawals at municipal industrial parks in Puerto Rico, 2000
Jose M. Rodriguez
2004, Scientific Investigations Report 2004-5029
An assessment of ground-water withdrawals at municipal industrial parks throughout Puerto Rico was conducted to investigate the effect of ground-water usage on nearby surface- and ground-water resources. Water-bearing strata were divided into four generalized hydrogeologic units: (1) fissured aquifers (including karst and non-karst limestone); (2) intergranular aquifers; (3) intergranular aquifers...
Conceptualization and simulation of the Edwards aquifer, San Antonio region, Texas
Richard J. Lindgren, A.R. Dutton, S.D. Hovorka, S.R.H. Worthington, Scott Painter
2004, Scientific Investigations Report 2004-5277
A new numerical ground-water-flow model (Edwards aquifer model) that incorporates important components of the latest information and plausible conceptualization of the Edwards aquifer was developed. The model includes both the San Antonio and Barton Springs segments of the Edwards aquifer in the San Antonio region, Texas, and was calibrated for...
Coastal-change and glaciological map of the Eights Coast area, Antarctica, 1972-2001
Charles Swithinbank, Richard S. Williams Jr., Jane G. Ferrigno, Kevin M. Foley, Christine E. Rosanova, Lina M. Dailide
2004, IMAP 2600-E
Changes in the area and volume of polar ice sheets are intricately linked to changes in global climate, and the resulting changes in sea level may severely impact the densely populated coastal regions on Earth. Melting of the West Antarctic part alone of the Antarctic ice sheet could cause a...
Potential-scour assessments and estimates of scour depth using different techniques at selected bridge sites in Missouri
Richard J. Huizinga, Paul H. Rydlund Jr.
2004, Scientific Investigations Report 2004-5213
The evaluation of scour at bridges throughout the state of Missouri has been ongoing since 1991 in a cooperative effort by the U.S. Geological Survey and Missouri Department of Transportation. A variety of assessment methods have been used to identify bridges susceptible to scour and to estimate scour depths. A...
Selected hydrologic data for the upper Rio Hondo basin, Lincoln County, New Mexico, 1945-2003
Lisa C. Donohoe
2004, Scientific Investigations Report 2004-5275
Demands for ground and surface water have increased in the upper Rio Hondo Basin due to increases in development and population. Local governments are responsible for land-use and development decisions and, therefore, the governments need information about water resources in their areas. Hydrologic data were compiled for the upper Rio...
Simulation of ground-water flow, contributing recharge areas, and ground-water travel time in the Missouri River alluvial aquifer near Ft. Leavenworth, Kansas
Brian P. Kelly
2004, Scientific Investigations Report 2004-5215
The Missouri River alluvial aquifer near Ft. Leavenworth, Kansas, supplies all or part of the drinking water for Ft. Leavenworth; Leavenworth, Kansas; Weston, Missouri; and cooling water for the Kansas City Power and Light, Iatan Power Plant. Ground water at three sites within the alluvial aquifer near the Ft. Leavenworth...
Lake Worth bottom sediments : A chronicle of water-quality changes in western Fort Worth, Texas, 1914-2001
Christopher L. Braun, Glenn R. Harwell
2004, Fact Sheet 2004-3077
In spring 2000, the Texas Department of Health issued a fish-consumption advisory for Lake Worth, Tex., because of elevated concentrations of polychlorinated biphenyls (PCBs) in fish (Texas Department of Health, 2000). In response to the advisory and in cooperation with the U.S. Air Force, the U.S. Geological Survey (USGS) collected...
Hydrogeology and simulation of regional ground-water-level declines in Monroe County, Michigan
Howard W. Reeves, Kirsten V. Wright, J.R. Nicholas
2004, Water-Resources Investigations Report 2003-4312
Observed ground-water-level declines from 1991 to 2003 in northern Monroe County, Michigan, are consistent with increased ground-water demands in the region. In 1991, the estimated ground-water use in the county was 20 million gallons per day, and 80 percent of this total was from quarry dewatering. In 2001, the estimated...
Estimating flood-peak discharge magnitudes and frequencies for rural streams in Illinois
David T. Soong, Audrey L. Ishii, Jennifer B. Sharpe, Charles F. Avery
2004, Scientific Investigations Report 2004-5103
Flood-peak discharge magnitudes and frequencies at streamflow-gaging sites were developed with the annual maximum series (AMS) and the partial duration series (PDS) in this study. Regional equations for both flood series were developed for estimating flood-peak discharge magnitudes at specified recurrence intervals of rural Illinois streams. The regional equations are techniques for estimating...
Hydrologic, soil, and vegetation gradients in remnant and constructed riparian wetlands in west-central Missouri, 2001-04
David C. Heimann, Paige A. Mettler-Cherry
2004, Scientific Investigations Report 2004-5216
A study was conducted by the U.S. Geological Survey in cooperation with the Missouri Department of Conservation at the Four Rivers Conservation Area (west-central Missouri), between January 2001 and March 2004, to examine the relations between environmental factors (hydrology, soils, elevation, and landform type) and the spatial distribution of vegetation...
A cross-site comparison of methods used for hydrogeologic characterization of the Galena-Platteville aquifer in Illinois and Wisconsin, with examples from selected Superfund sites
Robert T. Kay, P.C. Mills, Charles P. Dunning, Douglas J. Yeskis, James R. Ursic, Mark Vendl
2004, Scientific Investigations Report 2004-5136
The effectiveness of 28 methods used to characterize the fractured Galena-Platteville aquifer at eight sites in northern Illinois and Wisconsin is evaluated. Analysis of government databases, previous investigations, topographic maps, aerial photographs, and outcrops was essential to understanding the hydrogeology in the area to be investigated. The effectiveness of...
Tannins and terpenoids as major precursors of Suwannee River fulvic acid
Jerry A. Leenheer, Colleen E. Rostad
2004, Scientific Investigations Report 2004-5276
Suwannee River fulvic acid (SRFA) was fractionated into 7 fractions by normal-phase chromatography on silica gel followed by reverse-phase fractionation on XAD-8 resin that produced 18 subfractions. Selected major subfractions were characterized by 13C-nuclear magnetic resonance (NMR), infrared spectrometry, and elemental analyses. 13C-NMR spectra of the subfractions were more indicative...
Chapter G: Tentative Correlation Between CIPW Normin pl (Total Plagioclase) and Los Angeles Wear in Precambrian Midcontinental Granites-Examples from Missouri and Oklahoma, with Applications and Limitations for Use
George H. Davis
2004, Bulletin 2209-G
The normative chemical classification of Cross, Iddings, Pirsson, and Washington (CIPW) is commonly used in igneous petrology to distinguish igneous rocks by comparing their magmatic chemistries for similar and dissimilar components. A potential use for this classification other than in petrologic studies is in the rapid assessment of aggregate sources,...
Celebrating 125 years of the U.S. Geological Survey
Kathleen K. Gohn
2004, Circular 1274
In the 125 years since its creation, the U.S. Geological Survey (USGS) has provided the science information needed to make vital decisions and safeguard society. In this anniversary year, we celebrate the mission that has guided us, the people and traditions that have shaped us, and the science and technology...
Characterization of water quality in Government Highline Canal at Camp 7 Diversion and Highline Lake, Mesa County, Colorado, July 2000 through September 2003
Roderick F. Ortiz
2004, Scientific Investigations Report 2004-5281
The U.S. Geological Survey, in cooperation with the Colorado Division of Parks and Recreation, collected and analyzed water-quality data for the Government Highline Canal and Highline Lake from July 2000 through September 2003. Implementation of modernization strategies for the canal, which supplies most of the water to the lake, would...
Evaluation of ground-water contribution to streamflow in coastal Georgia and adjacent parts of Florida and South Carolina
Sherlyn Priest
2004, Scientific Investigations Report 2004-5265
Stream-aquifer relations in the coastal area of Georgia and adjacent parts of Florida and South Carolina were evaluated as part of the Coastal Georgia Sound Science Initiative, the Georgia Environmental Protection Division's strategy to protect the Upper Floridan aquifer from saltwater intrusion. Ground-water discharge to streams was estimated using three...
Chemistry of ground water in the Silver Springs basin, Florida, with an emphasis on nitrate
G. G. Phelps
2004, Scientific Investigations Report 2004-5144
The Silver Springs group, in central Marion County, Florida, has a combined average discharge rate of 796 cubic feet per second and forms the headwaters of the Silver River. The springs support a diverse ecosystem and are an important cultural and economic resource. Concentrations of nitrite-plus-nitrate (nitrate-N) in water from...
Streamflow and water-quality characteristics at selected sites of the St. Johns River in central Florida, 1933 to 2002
Sharon E. Kroening
2004, Scientific Investigations Report 2004-5177
To meet water-supply needs in central Florida for 2020, the St. Johns River is being considered as a source of water supply to augment ground water from the Floridan aquifer system. Current (2004) information on streamflow and water-quality characteristics of the St. Johns River in east-central Florida is needed by...
A method for simulating transient ground-water recharge in deep water-table settings in central Florida by using a simple water-balance/transfer-function model
Andrew M. O’Reilly
2004, Scientific Investigations Report 2004-5195
A relatively simple method is needed that provides estimates of transient ground-water recharge in deep water-table settings that can be incorporated into other hydrologic models. Deep water-table settings are areas where the water table is below the reach of plant roots and virtually all water that is not lost to...
Long-Term Oceanographic Observations in Western Massachusetts Bay Offshore of Boston, Massachusetts: Data Report for 1989-2002
Bradford Butman, Michael H. Bothner, P. Soupy Alexander, Frances L. Lightsom, Marinna A. Martini, Benjamin T. Gutierrez, William S. Strahle
2004, Data Series 74
This data report presents long-term oceanographic observations made in western Massachusetts Bay at two locations: (1) 42 deg 22.6' N., 70 deg 47.0' W. (Site A, 33 m water depth) from December 1989 through December 2002 (figure 1), and (2) 42 deg 9.8' N., 70 deg 38.4' W. (Site B,...
Simulation of ground-water flow in the Potomac-Raritan-Magothy aquifer system, Pennsauken Township and vicinity, New Jersey
Daryll A. Pope, Martha K. Watt
2004, Scientific Investigations Report 2004-5025
The Potomac-Raritan-Magothy aquifer system is one of the primary sources of potable water in the Coastal Plain of New Jersey, particularly in heavily developed areas along the Delaware River. In Pennsauken Township, Camden County, local drinking-water supplies from this aquifer system have been contaminated by hexavalent chromium at concentrations that...