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...
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...
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...
African dust carries microbes across the ocean: are they affecting human and ecosystem health?
Christina A. Kellogg, Dale W. Griffin
2003, Open-File Report 2003-28
Atmospheric transport of dust from northwest Africa to the western Atlantic Ocean region may be responsible for a number of environmental hazards, including the demise of Caribbean corals; red tides; amphibian diseases; increased occurrence of asthma in humans; and oxygen depletion (eutrophication) in estuaries. Studies of satellite images suggest that...
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...
Aquifer tests and simulation of ground-water flow in Triassic sedimentary rocks near Colmar, Bucks and Montgomery Counties, Pennsylvania
Dennis W. Risser, Philip H. Bird
2003, Water-Resources Investigations Report 2003-4159
This report presents the results of a study by the U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency to evaluate ground-water flow in Triassic sedimentary rocks near Colmar, in Bucks and Montgomery Counties, Pa. The study was conducted to help the U.S. Environmental Protection Agency evaluate remediation...
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...
Comparison and continuous estimates of fecal coliform and Escherichia coli bacteria in selected Kansas streams, May 1999 through April 2002
Patrick P. Rasmussen, Andrew C. Ziegler
2003, Water-Resources Investigations Report 2003-4056
The sanitary quality of water and its use as a public-water supply and for recreational activities, such as swimming, wading, boating, and fishing, can be evaluated on the basis of fecal coliform and Escherichia coli (E. coli) bacteria densities. This report describes the overall sanitary quality of surface water in...
Water quality and the effects of changes in phosphorus loading to Muskellunge Lake, Vilas County, Wisconsin
Dale M. Robertson, William J. Rose, David A. Saad
2003, Water-Resources Investigations Report 2003-4011
Muskellunge Lake is a productive, eutrophic lake because of high nutrient loading. Historical data indicate that water quality has only slightly degraded since the early 1970s, possibly because of phosphorus input from effluent from septic systems. A detailed phosphorus budget for the lake indicated that most of the phosphorus comes...
Field methods and quality-assurance plan for quality-of-water activities, U.S. Geological Survey, Idaho National Engineering and Environmental Laboratory, Idaho
Roy C. Bartholomay, LeRoy L. Knobel, Joseph P. Rousseau
2003, Open-File Report 2003-42
Water Resources of the Ground-Water System in the Unconsolidated Deposits of the Colville River Watershed, Stevens County, Washington
Sue C. Kahle, Claire I. Longpre, Raymond R. Smith, Steve S. Sumioka, Anni M. Watkins, David L. Kresch
2003, Water-Resources Investigations Report 2003-4128
A study of the water resources of the ground-water system in the unconsolidated deposits of the Colville River Watershed provided the Colville River Watershed Planning Team with an assessment of the hydrogeologic framework, preliminary determinations of how the shallow and deeper parts of the ground-water system interact with each other...
Rainfall, runoff, and water-quality data for the urban storm-water program in the Albuquerque, New Mexico, metropolitan area, water year 2001
Todd Kelly, Orlando Romero
2003, Open-File Report 2003-169
Major and catastrophic storms and floods in Texas: 215 major and 41 catastrophic events from 1953 to September 1, 2002
Raymond M. Slade Jr., John M. Patton
2003, Open-File Report 2003-193
Many Texas storms represent some of the largest storms in the world. Flooding from large storms has affected Texas throughout its history, causing many deaths and much economic loss and hardship. Floods occur regularly in Texas, and destructive floods occur somewhere in the State every year. Many of these floods...
Testing ground-water-management alternatives in the Upper Charles River basin, eastern Massachusetts
Leslie A. DeSimone
2003, Fact Sheet 042-03
Potentiometric Surface of the Lower Patapsco Aquifer in Southern Maryland, September 2002
Stephen E. Curtin, David C. Andreasen, Judith C. Wheeler
2003, Open-File Report 2003-258
This report presents a map showing the potentiometric surface of the Lower Patapsco aquifer in the Patapsco Formation of Lower Cretaceous age in Southern Maryland during September 2002. The map is based on water-level measurements in 69 wells. The highest measured water level was 108 feet above sea level near...
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...
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
Rocky Mountain snowpack chemistry at selected sites for 2001
George P. Ingersoll, M. Alisa Mast, David W. Clow, Leora Nanus, Donald H. Campbell, Heather Handran
2003, Open-File Report 2003-48
Because regional-scale atmospheric deposition data in the Rocky Mountains are sparse, a program was designed by the U.S. Geological Survey, in cooperation with the National Park Service, U.S. Department of Agriculture Forest Service, and other agencies, to more thoroughly determine the chemical composition of precipitation and to identify sources of...
Potentiometric Surface of the Upper Patapsco Aquifer in Southern Maryland, September 2002
Stephen E. Curtin, David C. Andreasen, Judith C. Wheeler
2003, Open-File Report 2003-257
This report presents a map showing the potentiometric surface of the Upper Patapsco aquifer in the Patapsco Formation of Lower Cretaceous age in Southern Maryland during September 2002. The map is based on water-level measurements in 50 wells. The highest measured water level was 117 feet above sea level near...
Vulnerability of ground water to contamination, northern Bexar County, Texas
Amy R. Clark
2003, Water-Resources Investigations Report 2003-4072
The Trinity aquifer, composed of Lower Cretaceous carbonate rocks, largely controls the ground-water hydrology in the study area of northern Bexar County, Texas. Discharge from the Trinity aquifer recharges the downgradient, hydraulically connected Edwards aquifer one of the most permeable and productive aquifers in the Nation and the sole source...
Physical aspects of waste storage from a hypothetical open pit porphyry copper operation
Kenneth E. Porter, Donald I. Bleiwas
2003, Open-File Report 2003-143
Annual report, fiscal years 2001 and 2002
Jon W. Raese
2003, Open-File Report 2003-14
The U.S. Geological Survey National Water Quality Laboratory annual report is designed to recap the important changes, contributions, and successes of the Laboratory over the past 2 fiscal years. The intent is to provide customers with a concise overview of what the Laboratory has accomplished, how it has performed, and...
Coalbed methane in Hungary, workshop and field trips : September 14 - October 1, 2002
Edwin R. Landis
2003, Open-File Report 2003-86
The Sidebar Computer Program, a seismic-shaking intensity meter: users' manual and software description
John R. Evans
2003, Open-File Report 2003-202
The SideBar computer program provides a visual display of seismic shaking intensity as recorded at one specific seismograph. This software allows a user to tap into the seismic data recorded on that specific seismograph and to display the overall level of shaking at the single location where that seismograph resides...
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...
