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Water quality of selected springs and public-supply wells, Pine Ridge Indian Reservation, South Dakota, 1992-97
Allen J. Heakin
2000, Water-Resources Investigations Report 99-4063
This report presents results of a water-quality study for the Pine Ridge Indian Reservation, South Dakota. The study was a cooperative effort between the U.S. Geological Survey and the Water Resources Department of the Oglala Sioux Tribe. Discharge and water-quality data were collected during 1992-97 for 14 contact springs located in...
Flood tracking chart for the Upper San Jacinto River Basin near Houston, Texas
Dana L. Barbie
2000, Open-File Report 2000-387
The “Flood Tracking Chart for the Upper San Jacinto River Basin near Houston, Texas” can be used to track river stage and to assess flood-crest information during substantial storms. Water-surface elevation during a flood will provide emergency-response personnel, residents, and the traveling general public essential information to make informed decisions...
Droughts in Georgia
Nancy L. Barber, Timothy C. Stamey
2000, Open-File Report 2000-380
Droughts do not have the immediate effects of floods, but sustained droughts can cause economic stress throughout the State. The word 'drought' has various meanings, depending on a person's perspective. To a farmer, a drought is a period of moisture deficiency that affects the crops under cultivation - even two...
Occurrence of pesticides in five rivers of the Mississippi Embayment Study Unit, 1996-98
Richard H. Coupe
2000, Water-Resources Investigations Report 99-4159
The occurrence and temporal distribution of more than 80 pesticides and pesticide metabolites were determined in five rivers of the Mississippi Embayment National Water-Quality Assessment study unit from February 1996 through January 1998. More than 230 samples were collected and analyzed during the 2-year study. The five rivers sampled included...
Monthly variability and possible sources of nitrate in ground water beneath mixed agricultural land use, Suwannee and Lafayette Counties, Florida
Brian G. Katz, J.K. Böhlke
2000, Water-Resources Investigations Report 2000-4219
In an area of mixed agricultural land use in Suwannee and Lafayette Counties of northern Florida, water samples were collected monthly from 14 wells tapping the Upper Floridan aquifer during July 1998 through June 1999 to assess hydrologic and land-use factors affecting the variability in nitrate concentrations in ground water....
Ground geophysical study of the Buckeye mine tailings, Boulder watershed, Montana
Robert R. McDougal, Bruce D. Smith
2000, Open-File Report 2000-371
The Buckeye mine site is located in the Boulder River watershed along Basin Creek, in northern Jefferson County, Montana. This project is part of the Boulder River watershed Abandoned Mine Lands Initiative, and is a collaborative effort between the U.S. Geological Survey and Bureau of Land Management in the U.S....
Simulation of projected water demand and ground-water levels in the Coffee Sand and Eutaw-McShan aquifers in Union County, Mississippi, 2010 through 2050
Susan S. Hutson, E. W. Strom, D.E. Burt, M. J. Mallory
2000, Water-Resources Investigations Report 2000-4268
Ground water from the Eutaw-McShan and the Coffee Sand aquifers is the major source of supply for residential, commercial, and industrial purposes in Union County, Mississippi. Unbiased, scientifically sound data and assessments are needed to assist agencies in better understanding and managing available water resources as continuing development and growth...
Archive of water gun subbottom data collected during USGS cruise SEAX 96004, New York Bight, 1 May - 9 June 1996
Jenna C. Hill, William C. Schwab, David S. Foster
2000, Open-File Report 2000-396
Beginning in 1995, the USGS, in cooperation with the U.S Army Corps of Engineers (USACE), New York District, began a program to generate reconnaissance maps of the sea floor offshore of the New York-New Jersey metropolitan area, one of the most populated coastal regions of the United States. The goal...
Water-quality characteristics for selected streams in Lawrence County, South Dakota, 1988-92
Joyce E. Williamson, Timothy Scott Hayes
2000, Water-Resources Investigations Report 2000-4220
During the 1980?s, significant economic development and population growth began to occur in Lawrence County in the northern part of the Black Hills of western South Dakota. Rising gold prices and heap-leach extraction methods allowed the economic recovery of marginal gold ore deposits, resulting in development of several large-scale, open-pit...
MORPH-II, a software package for the analysis of scanning-electron-micrograph images for the assessment of the fractal dimension of exposed stone surfaces
Victor G. Mossotti, A. Raouf Eldeeb
2000, Open-File Report 2000-13
Turcotte, 1997, and Barton and La Pointe, 1995, have identified many potential uses for the fractal dimension in physicochemical models of surface properties. The image-analysis program described in this report is an extension of the program set MORPH-I (Mossotti and others, 1998), which provided the fractal analysis of electron-microscope images...
Preliminary report on geophysics of the Verde River headwaters region, Arizona
Victoria E. Langenheim, J. S. Duval, Laurie Wirt, Ed DeWitt
2000, Open-File Report 2000-403
This report summarizes the acquisition, data processing, and preliminary interpretation of a high-resolution aeromagnetic and radiometric survey near the confluence of the Big and Little Chino basins in the headwaters of the Verde River, Arizona. The goal of the aeromagnetic study is to improve understanding of the geologic framework as...
Physical characteristics of dungeness crab and halibut habitats in Whidbey Passage, Alaska
Guy R. Cochrane, Paul R. Carlson, Michael E. Boyle, Gregory L. Gabel, Philip N. Hooge
2000, Open-File Report 2000-32
In Glacier Bay National Park, Alaska there are ongoing studies of Dungeness Crab (Cancer magister) and Pacific Halibut (Hippoglosus stenolepis). Scientists of the United States Geological Survey (USGS) are attempting to ascertain life history, distribution, and abundance, and to determine the effects of commercial fishing in the park (Carlson et...
Assessment of freshwater mussels in the Allegheny River at Foxburg, Pennsylvania, 1998
Robert M. Anderson
2000, Water-Resources Investigations Report 2000-4058
The upper reaches of the Allegheny River are a high-quality resource that supports populations of a number of endangered species. Two endangered species of freshwater mussel, the northern riffleshell, Epioblasma torulosa rangiana, and clubshell, Pleurobema clava, are present in this river reach. Prior to a bridge-replacement project at the Allegheny...
Aquifer test to determine hydraulic properties of the Elm aquifer near Aberdeen, South Dakota
Bryan D. Schaap
2000, Water-Resources Investigations Report 2000-4264
The Elm aquifer, which consists of sandy and gravelly glacial-outwash deposits, is present in several counties in northeastern South Dakota. An aquifer test was conducted northeast of Aberdeen during the fall of 1999 to determine the hydraulic properties of the Elm aquifer in that area. An improved understanding of the...