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Page 4716, results 117876 - 117900

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Movement of ground water in coal-bearing rocks near Fishtrap Lake in Pike County, Kentucky
R. W. Davis
1987, Water-Resources Investigations Report 87-4084
Eight test holes were core-drilled from various altitudes in a typical coal-bearing sequence rocks of Pennsylvania age in Pike County, eastern Kentucky. Vertical fractures were common in cores from shallow depths, but became less common or absent toward the bottom of two test holes drilled 400 and 291 ft deep....
Analysis of sediment production from two small semiarid basins in Wyoming
J.G. Rankl
1987, Water-Resources Investigations Report 85-4314
Data were collected at two small, semiarid basins in Wyoming to determine the relation between rainfall, runoff, and sediment production. The basins were Dugout Creek tributary and Saint Marys Ditch tributary. Sufficient rainfall and runoff data were collected at Dugout Creek tributary to determine the source of sediment and the...
Sediment discharge in Rock Creek and the effect of sedimentation rate on the proposed Rock Creek Reservoir, northwestern Colorado
D. L. Butler
1987, Water-Resources Investigations Report 87-4026
Sediment data collected from 1976 to 1985 and stream discharge data collected from 1952 to 1980 at gaging station 09060500, Rock Creek near Toponas, Colorado, were used to determine total sediment discharge into the proposed Rock Creek Reservoir. Suspended sediment discharge and bedload discharge were related to stream discharge by...
Statistical analysis relating well yield to construction practices and siting of wells in the Piedmont and Blue Ridge provinces of North Carolina
C.C. Daniel
1987, Water-Resources Investigations Report 86-4132
A statistical analysis was made of data from more than 6,200 water wells drilled in the fractured crystalline rocks of the Blue Ridge, Piedmont, and western edge of the Coastal Plain where crystalline rocks underlie sediments at shallow depths. The study area encompassed 65 countries in western North Carolina, an...
Pesticide data for selected Wyoming streams, 1976-78
David L. Butler
1987, Water-Resources Investigations Report 83-4127
In 1976, the U.S. Geological Survey, in cooperation with the Wyoming Department of Agriculture, started a monitoring program to determine pesticide concentrations in Wyoming streams. This program was incorporated into the water-quality data-collection system already in operation. Samples were collected at 20 sites for analysis of various insecticides, herbicides, polychlorinated...
National and regional trends in water-well drilling in the United States, 1964-84
S. M. Hindall, Michael Eberle
1987, Open-File Report 87-247
Information on national and regional water well drilling activity is important for water resource planning and management and for water related equipment marketing. A study was conducted to analyze drilling trends on the basis of data for selected years from 1964 through 1984. The study focused primarily on the years...
Water levels, chloride concentrations, and pumpage in the coastal aquifers of Delaware and Maryland
D. J. Phelan
1987, Water-Resources Investigations Report 87-4229
The Manokin, Ocean City, Pocomoke, and unconfined aquifers of coastal Delaware and Maryland are susceptible to saltwater intrusion from inland movement of offshore water, and from vertical leakage from the bays and deeper aquifer. Comparison of data for water levels, chloride, and pumpage affected during 1974-86 shows that, with the...
Hydrogeology of McMullen Valley, west-central Arizona
D. R. Pool
1987, Water-Resources Investigations Report 87-4140
The geohydrology of McMullen Valley, west-central Arizona, was investigated using geologic, geophysical, and hydrologic data and a numerical model of the groundwater system. Interpretation of geologic and geophysical information indicates that the main structure of McMullen Valley is a syncline that has been normal faulted on the southeast side. Basin...