Surface-water and ground-water quality in the Powell Creek and Armstrong Creek Watersheds, Dauphin County, Pennsylvania, July-September 2001
Daniel G. Galeone, Dennis J. Low
2003, Fact Sheet 052-03
Powell Creek and Armstrong Creek Watersheds are in Dauphin County, north of Harrisburg, Pa. The completion of the Dauphin Bypass Transportation Project in 2001 helped to alleviate traffic congestion from these watersheds to Harrisburg. However, increased development in Powell Creek and Armstrong Creek Watersheds is expected. The purpose of this...
Relations of stream fish communities to physical and chemical parameters and land use in the Mississippi Alluvial Plain Ecoregion
Brian J. Caskey
2003, Open-File Report 2003-31
Simulated ground-water flow in the Ogallala and Arikaree aquifers, Rosebud Indian Reservation area, South Dakota
Andrew J. Long, Larry D. Putnam, Janet M. Carter
2003, Water-Resources Investigations Report 2003-4043
The Ogallala and Arikaree aquifers are important water resources in the Rosebud Indian Reservation area and are used extensively for irrigation, municipal, and domestic water supplies. Continued or increased withdrawals from the Ogallala and Arikaree aquifers in the Rosebud Indian Reservation area have the potential to affect water levels in...
Analytical and numerical simulation of the steady-state hydrologic effects of mining aggregate in hypothetical sand-and-gravel and fractured crystalline-rock aquifers
L. R. Arnold, William H. Langer, Suzanne Smith Paschke
2003, Water-Resources Investigations Report 2002-4267
Analytical solutions and numerical models were used to predict the extent of steady-state drawdown caused by mining of aggregate below the water table in hypothetical sand-and-gravel and fractured crystalline-rock aquifers representative of hydrogeologic settings in the Front Range area of Colorado. Analytical solutions were used to predict the extent of...
North Dakota aeromagnetic and gravity maps and data: A web site for distribution of data
Ronald E. Sweeney, Patricia L. Hill
2003, Open-File Report 2003-249
The North Dakota aeromagnetic grid is constructed from grids that combine information collected in 13 separate aeromagnetic surveys conducted between 1978 and 2001. The data from these surveys are of varying...
A digital geologic map database for the state of Oklahoma
William D. Heran, Gregory N. Green, Douglas B. Stoeser
2003, Open-File Report 2003-247
This dataset is a composite of part or all of the 12 1:250,000 scale quadrangles that make up Oklahoma. The result looks like a geologic map of the State of Oklahoma. But it is...
Trends in nitrate and dissolved-solids concentrations in ground water, Carson Valley, Douglas County, Nevada, 1985-2001
Michael R. Rosen
2003, Water-Resources Investigations Report 2003-4152
Analysis of trends in nitrate and total dissolved-solids concentrations over time in Carson Valley, Nevada, indicates that 56 percent of 27 monitoring wells that have long-term records of nitrate concentrations show increasing trends, 11 percent show decreasing trends, and 33 percent have not changed. Total dissolved-solids concentrations have increased in...
Water temperature, specific conductance, pH, and dissolved-oxygen concentrations in the lower White River and the Puyallup River estuary, Washington, August-October 2002
James C. Ebbert
2003, Water-Resources Investigations Report 2003-4177
The U.S. Geological Survey, Washington State Department of Ecology, and Puyallup Tribe of Indians monitored water temperature, specific conductance, pH, and dissolved-oxygen concentrations in the White River at river miles 4.9 and 1.8 from August until mid-October 2002. Water diverted from the White River upstream from the monitoring sites into...
Availability and distribution of base flow in lower Honokohau Stream, Island of Maui
Richard A. Fontaine
2003, Water-Resources Investigations Report 2003-4060
Honokohau Stream is one of the few perennial streams in the Lahaina District of West Maui. Current Honokohau water-use practices often lead to conflicts among water users, which are most evident during periods of base flow. To better manage the resource, data are needed that describe the availability and distribution...
Water-quality assessment of part of the Upper Mississippi River Basin Study Unit, Minnesota and Wisconsin — Nutrients, chlorophyll a, phytoplankton, and suspended sediment in streams, 1996-98
Sharon E. Kroening, Kathy Lee, R. M. Goldstein
2003, Water-Resources Investigations Report 2002-4287
Stream water-quality data from part of the Upper Mississippi River Basin Study Unit (Study Unit) from 1995 through 1998 was used to describe the distribution of nutrients, chlorophyll a, phytoplankton, and suspended sediment; and the influence of natural and anthropogenic factors on reported concentrations, loads, and yields. During the study...
Simulated effects of ground-water management scenarios on the Santa Fe group aquifer system, Middle Rio Grande Basin, New Mexico, 2001-40
Laura M. Bexfield, Douglas P. McAda
2003, Water-Resources Investigations Report 2003-4040
Future conditions in the Santa Fe Group aquifer system through 2040 were simulated using the most recent revision of the U.S. Geological Survey groundwater- flow model for the Middle Rio Grande Basin. Three simulations were performed to investigate the likely effects of different scenarios of future groundwater pumping by the...
Water-quality trends in New England rivers during the 20th century
Keith W. Robinson, Jean P. Campbell, Norbert A. Jaworski
2003, Water-Resources Investigations Report 2003-4012
Water-quality data from the Merrimack, Blackstone, and Connecticut Rivers in New England during parts of the 20th century were examined for trends in concentrations of sulfate, chloride, residue upon evaporation, nitrate, and total phosphorus. The concentrations of all five of these constituents show statistically significant trends during the century. Annual...
Seasonal and spatial variability of pesticides in streams of the upper Tennessee River basin, 1996-99
M.W. Treece Jr.
2003, Water-Resources Investigations Report 2003-4006
From 1996 to 1999, the U.S. Geological Survey conducted an assessment of pesticides in streams in the upper Tennessee River Basin (UTEN), which includes parts of Tennessee, North Carolina, Virginia, and Georgia. A total of 362 water samples were collected at 13 fixed surface-water sites from March 1996 through June...
Geophysical identification and geological Implications of the southern Alaska magnetic trough
R. W. Saltus, T. L. Hudson, Frederic H. Wilson
2003, Open-File Report 2003-200
The southern Alaska magnetic trough (SAMT) is one of the fundamental, crustal-scale, magnetic features of Alaska. It is readily recognized on 10 km upward-continued aeromagnetic maps of the state. The arcuate SAMT ranges from 30 to 100 km wide and extends in two separate segments along the southern Alaska margin...
Potentiometric Surface of the Aquia Aquifer in Southern Maryland, September 2002
Stephen E. Curtin, David C. Andreasen, Judith C. Wheeler
2003, Open-File Report 2003-255
This report presents a map showing the potentiometric surface of the Aquia aquifer in the Aquia Formation of Paleocene age in Southern Maryland during September 2002. The map is based on water-level measurements in 94 wells. The highest measured water level was 38 feet above sea level near the northern...
Potentiometric Surface of the Magothy Aquifer in Southern Maryland, September 2002
Stephen E. Curtin, David C. Andreasen, Judith C. Wheeler
2003, Open-File Report 2003-256
This report presents a map showing the potentiometric surface of the Magothy aquifer in the Magothy Formation of Upper Cretaceous age in Southern Maryland during September 2002. The map is based on water-level measurements in 79 wells. The highest measured water level was 83 feet above sea level near the...
Water quality and depth to water, 2001-02, and graphs of selected constituents and depth to water, period of record through 2002, in selected wells, eastern Bernalillo County, New Mexico
Paul J. Blanchard
2003, Open-File Report 2003-81
No abstract available....
Archive of seismic-reflection data collected during USGS cruise Lake Mead 01007 in Lake Mead, Nevada and Arizona, 1-28 April, 2001
VeeAnn A. Cross, David C. Twichell
2003, Open-File Report 2002-478
Occurrence and distribution of dissolved trace elements in the surface waters of the Yakima River basin, Washington
Curt A. Hughes
2003, Water-Resources Investigations Report 2002-4177
The occurrence, distribution, and transport of dissolved (filtered-water) trace elements in the surface waters of the Yakima River Basin were assessed using data collected between 1999 and 2000 as part of the U.S. Geological Survey s National Water-Quality Assessment (NAWQA) Program. Samples were collected at 34 sites throughout the basin...
Structural plays in Ellesmerian sequence and correlative strata of the National Petroleum Reserve, Alaska
Thomas E. Moore, Christopher J. Potter
2003, Open-File Report 2003-253
Reservoirs in deformed rocks of the Ellesmerian sequence in southern NPRA are assigned to two hydrocarbon plays, the Thrust-Belt play and the Ellesmerian Structural play. The two plays differ in that the Thrust-Belt play consists of reservoirs located in allochthonous strata in the frontal part of the Brooks Range fold-and-thrust...
National Geochronological Database
Jan Revised by Sloan, Christopher D. Henry, Melanie Hopkins, Steve Ludington, Robert E. Zartman, Charles A. Bush, Carl Abston
2003, Open-File Report 2003-236
The National Geochronological Data Base (NGDB) was established by the United States Geological Survey (USGS) to collect and organize published isotopic (also known as radiometric) ages of rocks in the United States. The NGDB (originally known as the Radioactive Age Data Base, RADB) was started in 1974. A committee appointed...
Diatom data from Bradley Lake, Oregon: Downcore analyses
Eileen Hemphill-Haley, Roger C. Lewis
2003, Open-File Report 2003-190
Displaced marine diatoms provide biostratigraphic evidence for tsunami inundation at Bradley Lake, a small freshwater lake on the south-central Oregon coast. During the past 7,200 years, fine-grained lacustrine deposits in the deep axis of the lake were disturbed 17 times by the erosion and emplacement of coarse-grained gyttja and, in...
Location and age of foraminifer samples collected by Chevron Petroleum geologists in California
Earl E. Brabb, John M. Parker
2003, Open-File Report 2003-167
Most of the geologic maps published for parts of central California in the past century have been made without the benefit of ages from microfossils. The ages of Jurassic, Cretaceous and Tertiary rocks in the mostly poorly exposed and structurally complex sedimentary rocks represented in the Coast Ranges are critical...
Archive of Chirp subbottom data collected during USGS Cruise RAFA01025, Choptank River, Maryland, March 6-9, 2001
B. Ann Swift, E.R. Thieler, Steven M. Colman, D.R. Nichols
2003, Open-File Report 2003-72
Geology of an Ordovician stratiform base-metal deposit in the Long Canyon Area, Blaine County, Idaho
B.R. Otto, G.A. Zieg
2003, Bulletin 2064-KK
In the Long Canyon area, Blaine County, Idaho, a strati-form base-metal-bearing gossan is exposed within a complexly folded and faulted sequence of Ordovician strata. The gossan horizon in graptolitic mudrock suggests preservation of bedded sulfides that were deposited by an Ordovician subaqueous hydrothermal system. Abrupt thickness changes and geochemi-cal zoning...
