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Page 1249, results 31201 - 31225

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Hydrogeology and water chemistry of Montezuma Well in Montezuma Castle National Monument and surrounding area, Arizona
Alice D. Konieczki, Stanley A. Leake
1997, Water-Resources Investigations Report 97-4156
Increasing population and associated residential and commercial development have greatly increased water use and consumption in the Verde Valley near Montezuma Well, a unit of Montezuma Castle National Monument in central Arizona. Flow from Montezuma Well and water levels in eight wells that are measured annually do not indicate that...
Geology and mineral resource assessment of the Venezuelan Guayana Shield at 1:500,000 scale; a digital representation of maps published by the U.S. Geological Survey
Paul G. Schruben, J. C. Wynn, Floyd Gray, D. P. Cox, J.H. Sterwart, W. E. Brooks
1997, Data Series 46
This CD-ROM contains vector-based digital maps of the geology and resource assessment of the Venezuela Guayana Shield originally published as paper maps in 1993 in U. S. Geological Survey Bulletin 2062, at a scale of 1:1 million and revised in 1993-95 as separate maps at a scale of 1:500,000. Although...
Floods of July 18-20, 1996, in northern Illinois
Robert R. Holmes Jr., Amanda Kupka
1997, Open-File Report 97-425
Record flooding occurred on many streams in northern Ilinois during July 18-20, 1996. Over 16 inches of rain fell at some locations during and just prior to this period. Peak of record discharges were recorded at 19 U.S. Geological Survey (USGS) streamflow-gaging stations. The USGS, in cooperation with the Illinois...
Ground-water and water-chemistry data for the upper Deschutes Basin, Oregon
Rodney R. Caldwell, Margot Truini
1997, Open-File Report 97-197
This report presents ground-water data collected and compiled as part of a study of the ground-water resources of the upper Deschutes Basin, Oregon. Data in this report include tabulated information and a location map for more than 1,500 field-located water wells, hydrographs showing water-level fluctuations over various time periods for...
Geology of Point Reyes National Seashore and vicinity, California: A digital database
Jospeh C. Clark, Earl E. Brabb
1997, Open-File Report 97-456
This Open-File report is a digital geologic map database. This pamphlet serves to introduce and describe the digital data. There is no paper map included in the Open-File report. The report does include, however, a PostScript plot file containing an image of the geologic map sheet with...
Field guide for collecting samples for analysis of volatile organic compounds in stream water for the National Water-Quality Assessment Program
Larry R. Shelton
1997, Open-File Report 97-401
For many years, stream samples for analysis of volatile organic compounds have been collected without specific guidelines or a sampler designed to avoid analyte loss. In 1996, the U.S. Geological Survey's National Water-Quality Assessment Program began aggressively monitoring urban stream-water for volatile organic compounds. To assure representative samples and consistency...
Trace-element concentrations and transport in the Coeur d'Alene river, Idaho, water years 1993-94
Michael A. Beckwith, Paul F. Woods, Charles Berenbrock
1997, Open-File Report 97-398
for almost a century, the U.S. Geological Survey has collected hydrologic data at a network of stream-gaging stations throughout the Coeur d'Alene Lake and River drainage basin. Since 1990, extensive water-quality data have been collected for a comprehensive study of potential eutrophication of Coeur d'Alene Lake and for assessment of...
Streamflow characteristics of streams in the Upper Red River of the North basin, North Dakota, Minnesota, and South Dakota
Gregg J. Wiche, Tara Williams-Sether
1997, Open-File Report 97-416
Statistical summaries of streamflow data for all active and inactive gaging stations for the Red River Basin upstream of and including Halstad, Minnesota, are presented in this report. The summaries for each streamflow-gaging station include (1) manuscript (station description), (2) graph of the annual mean discharge for the period of...
Data Base for Assessment of Streambed Scour and Channel Instability at Selected Bridges in Indiana, 1991–95
Mark S. Hopkins, Bret A. Robinson
1997, Open-File Report 1997–0419
The U.S. Geological Survey, in cooperation with the Indiana Department of Transportation, has collected data at 5,587 bridges in Indiana built with federal aid. These data, which can be useful for assessing Streambed scour and channel instability, are maintained in a computerized data base at the U.S. Geological Survey in...
Modified level II streambed-scour analysis for structure I-70-148-4528 crossing West Fork of East Fork Whitewater River in Wayne County, Indiana
R. L. Miller, B.A. Robinson, D. C. Voelker
1997, Open-File Report 97-313
Level II scour evaluations follow a process in which hydrologic, hydraulic, and sedient-transport data are evaluated to calculate the depth of scour that may result when given discharge is routed through a bridge opening. the results of the modified Levell II analysis for structure I-70-148-4528 on Interstate 70 crossing West...
Modified level II streambed-scour analysis for structure I-74-32-4946 crossing Sugar Creek in Montgomery County, Indiana
R. L. Miller, B.A. Robinson, D. C. Voelker
1997, Open-File Report 97-321
Level II scour evaluations follow a process in which hydrologic, hydraulic, and sedient-transport data are evaluated to calculate the depth of scour that may result when given discharge is routed through a bridge opening. The results of the modified Levell II analysis for structure I-74-32-4946 on Interstate 74 crossing Sugar...
Modified level II streambed-scour analysis for structure I-64-83-5678 crossing Stinking Fork in Crawford County, Indiana
B.A. Robinson, D. C. Voelker, R. L. Miller
1997, Open-File Report 97-315
Level II scour evaluations follow a process in which hydrologic, hydraulic, and sediment transport data are evaluated to calculate the depth of scour that may result when a given discharge is routed through a bridge opening. The results of the modified Level II analysis for structure 1-64-83-5678 on Interstate 64...
Modified level II streambed-scour analysis for structure I-275-0-5639 crossing the Ohio River in Dearborn County, Indiana
R. L. Miller, B.A. Robinson, D. C. Voelker
1997, Open-File Report 97-330
Level II scour evaluations follow a process in which hydrologic, hydraulic, and sedient-transport data are evaluated to calculate the depth of scour that may result when given discharge is routed through a bridge opening. the results of the modified Levell II analysis for structure I-275-0-5639 on Interstate 275 crossing the...