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Quality of water and estimates of water inflow, northern boundary area, Fort McDowell Indian Reservation, Maricopa County, Arizona
John P. Hoffmann, Christie M. O’Day
2001, Water-Resources Investigations Report 2001-4151
Increased agricultural and recreational activities and recent growth of population centers within the Verde River basin have led to concerns about the quality and quantity of water flowing onto the Fort McDowell Indian Reservation. The purpose of this study was to determine the quality and quantity of water in the...
Spatial organization of desert tortoises and their burrows at a landscape scale
Jeffrey J. Duda, Anthony J. Krzysik, Joel M. Meloche
2001, Chelonian Conservation and Biology (4) 387-397
We thoroughly surveyed two 9 km 2 study plots using 624 km of transect lines in the south- central Mojave Desert, California, mapping with a precision global positioning system the location of desert tortoises (Gopherus agassizii) and their burrows. We found 98 desert tortoises and 1463 tortoise burrows. Three separate...
Benthic flux of dissolved nickel into the water column of south San Francisco Bay
B.R. Topping, J.S. Kuwabara, Francis Parcheso, S.W. Hager, A.J. Arnsberg, Fred Murphy
2001, Open-File Report 2001-89
Field and laboratory studies were conducted between April, 1998 and May, 1999 to provide the first direct measurements of the benthic flux of dissolved (0.2-micron filtered) nickel between the bottom sediment and water column at three sites in the southern component of San Francisco Bay (South Bay), California. Dissolved nickel...
Petroleum systems and assessment of the South Florida Basin
R. M. Pollastro, Christopher J. Schenk
2001, Data Series 69-A
This CD-ROM contains coverages that define and outline the geographic boundaries of petroleum systems and assessment units and text that describes the geology and reasoning to support the assessment of undiscovered oil and gas resources in the South Florida Basin for a forecast period of 30 years. This assessment was...
Stratigraphic and structural characterization of the OU-1 area at the former George Air Force Base, Adelanto, southern California
R. D. Catchings, G. Gandhok, M. R. Goldman
2001, Open-File Report 2001-60
The former George Air Force Base (GAFB), now known as the Southern California Logistics Airport (SCLA), is located in the town of Adelanto, approximately 100 km northeast of Los Angeles, California (Fig. 1). In this report, we present acquisition parameters, data, and interpretations of seismic images that were acquired in...
Evaluation of the Effects of Development on Peak-Flow Hydrographs for Collyer Brook, Maine
Robert W. Dudley, Glenn A. Hodgkins, Alexander Mann, John Chisolm
2001, Water-Resources Investigations Report 2001-4156
The development of former agricultural or forested lands creates more impervious areas and drainage improvements that can increase the volume of runoff and decrease infiltration and ground-water recharge in a watershed. Drainage improvements also can improve the conveyance of runoff, decreasing the time of rise to peak flow between the...
Geochemical baseline studies and relations between water quality and streamflow in the Upper Blackfoot watershed, Montana: Data for July 1997-December 1998
Sonia A. Nagorski, Johnnie N. Moore, David B. Smith
2001, Open-File Report 2001-59
We used ultraclean sampling techniques to study the solute (operationally defined as <0.2 ?m) surface water geochemistry at five sites along the Upper Blackfoot River and four sites along the Landers Fork, some in more detail and more regularly than others. We collected samples also from Hogum Creek, a tributary to the Blackfoot,...
Trace-metal concentrations in sediment and water and health of aquatic macroinvertebrate communities of streams near Park City, Summit County, Utah
Elis Giddings, Michelle I. Hornberger, Heidi K. Hadley
2001, Water-Resources Investigations Report 2001-4213
The spatial distribution of metals in streambed sediment and surface water of Silver Creek, McLeod Creek, Kimball Creek, Spring Creek, and part of the Weber River, near Park City, Utah, was examined. From the mid-1800s through the 1970s, this region was extensively mined for silver and lead ores. Although some...
Hydrogeology of sand and gravel deposits near the Nepaug Reservoir, New Hartford and Burlington, Connecticut
Janet Radway Stone, J. Jeffrey Starn, Jonathan Morrison
2001, Water-Resources Investigations Report 2001-4059
Sand and gravel deposits near the Nepaug Reservoir in New Hartford and Burlington, Connecticut, were studied to provide a basis for ongoing investigations that will evaluate water-quality conditions in the watershed and the effects of sand and gravel mining on the quality of water in the reservoir. In the Nepaug...
Channel-bed elevation changes downstream from large reservoirs in Kansas
Kyle E. Juracek
2001, Water-Resources Investigations Report 2001-4205
Channel-bed elevation changes were assessed downstream from 24 large Federal reservoirs in Kansas using information from U.S. Geological Survey streamflow-gaging stations. Changes in river/stream stage associated with mean annual discharge indicated that channel-bed lowering had occurred downstream from most of the reservoirs. The net decrease in channel-bed elevation ranged from...
Statewide water-quality network for Massachusetts
Leslie A. DeSimone, Peter A. Steeves, Marc James Zimmerman
2001, Water-Resources Investigations Report 2001-4081
A water-quality monitoring program is proposed that would provide data to meet multiple information needs of Massachusetts agencies and other users concerned with the condition of the State's water resources. The program was designed by the U.S. Geological Survey and the Massachusetts Department of Environmental Protection, Division of Watershed Management,...
Seismic Landslide Hazard for the City of Berkeley, California
Scott B. Miles, David K. Keefer
2001, Miscellaneous Field Studies Map 2378
This map describes the possible hazard from earthquake-induced landslides for the city of Berkeley, CA. The hazard depicted by this map was modeled for a scenario corresponding to an M=7.1 earthquake on the Hayward, CA fault. This scenario magnitude is associated with complete rupture of the northern and southern segments of...
Seismic Landslide Hazard for the Cities of Oakland and Piedmont, California
Scott B. Miles, David K. Keefer
2001, Miscellaneous Field Studies Map 2379
This map describes the possible hazard from earthquake-induced landslides for the cities of Oakland and Piedmont, CA. The hazard depicted by this map was modeled for a scenario corresponding to an M=7.1 earthquake on the Hayward, CA fault. This scenario magnitude is associated with complete rupture of...
Areal distribution and concentrations of contaminants of concern in surficial streambed and lakebed sediments, Lake Erie-Lake Saint Clair drainages, 1990–97
S. J. Rheaume, D. T. Button, Donna N. Myers, D. L. Hubbell
2001, Water-Resources Investigations Report 2000–4200
Concerns about elevated concentrations of contaminants such as polychlorinated biphenyls and mercury in aquatic bed sediments throughout the Great Lakes Basin have resulted in a need for better understanding of the scope and severity of the problem. Various organochlorine pesticides, polychlorinated biphenyls, trace metals, and polycyclic aromatic hydrocarbons are a...
Reconnaissance of Stream Geomorphology, Low Streamflow, and Stream Temperature in the Mountaintop Coal-Mining Region, Southern West Virginia, 1999-2000
Jeffrey B. Wiley, Ronald D. Evaldi, James H. Eychaner, Douglas B. Chambers
2001, Water-Resources Investigations Report 2001-4092
The effects of mountaintop removal coal mining and the valley fills created by this mining method in southern West Virginia were investigated by comparing data collected at valley-fill, mined, and unmined sites. Bed material downstream of valley-fill sites had a greater number of particles less than 2 millimeters and a...