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Page 1811, results 45251 - 45275

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Not all publications have extents, not all extents are completely accurate
Hydrology and land use in Grand Traverse County, Michigan
T. R. Cummings, J.L. Gillespie, N.G. Grannemann
1990, Water-Resources Investigations Report 90-4122
Glacial deposits are the sole source of ground-water supplies in Grand Traverse County. These deposits range in thickness from 100 to 900 feet and consist of till, outwash, and materials of lacustrine and eolian origin. In some areas, the deposits fill buried valleys that are 500 feet deep. Sedimentary rocks...
Estimates of consumptive use and ground-water return flow and the effect of rising and sustained high river stage on the method of estimation in Cibola Valley, Arizona and California, 1983 and 1984
Sandra J. Owen-Joyce
1990, Water-Resources Investigations Report 89-4194
In Cibola Valley, Arizona, water is pumped from the Colorado River to irrigate crops and to maintain wildlife habitat. Unused water percolates to the water table and, as groundwater, moves downgradient into areas of phreatophytes, into a drainage ditch, out of the flood plain, and back to the river. In...
Safe disposal of radionuclides in low-level radioactive-waste repository sites; Low-level radioactive-waste disposal workshop, U.S. Geological Survey, July 11-16, 1987, Big Bear Lake, Calif., Proceedings
Marion S. Bedinger, Peter R. Stevens, editor(s)
1990, Circular 1036
In the United States, low-level radioactive waste is disposed by shallow-land burial. Low-level radioactive waste generated by non-Federal facilities has been buried at six commercially operated sites; low-level radioactive waste generated by Federal facilities has been buried at eight major and several minor Federally operated sites (fig. 1). Generally, low-level...
Evaluation of selected methods for determining streamflow during periods of ice effect
N.B. Melcher, J.F. Walker
1990, Open-File Report 90-554
Seventeen methods for estimating ice-affected streamflow are evaluated for potential use for the U.S. Geological Survey streamflow-gaging station network. The methods evaluated were identified by written responses from U.S. Geological Survey field offices and by a comprehensive literature search. The methods selected and techniques used for applying the methods are described...
QADATA user's manual; an interactive computer program for the retrieval and analysis of the results from the external blind sample quality- assurance project of the U.S. Geological Survey
K.J. Lucey
1990, Open-File Report 90-162
The U.S. Geological Survey conducts an external blind sample quality assurance project for its National Water Quality Laboratory in Denver, Colorado, based on the analysis of reference water samples. Reference samples containing selected inorganic and nutrient constituents are disguised as environmental samples at the Survey 's office in Ocala, Florida,...
Hydrogeology of the Pictured Cliffs Sandstone in the San Juan structural basin, New Mexico, Colorado, Arizona, and Utah
William L. Dam, J. M. Kernodle, C. R. Thorn, G. W. Levings, S. D. Craigg
1990, Hydrologic Atlas 720-D
This report is one in a series resulting from the U.S. Geological Survey's Regional Aquifer System Analysis (RASA) study of the San Juan structural basin that began in October 1984. The purposes of the study (Welder, 1986) are to: (1) Define and evaluate the aquifer system; (2) assess the effects...
Large springs in the Valley and Ridge physiographic province of Pennsylvania
D. A. Saad, D. J. Hippe
1990, Open-File Report 90-164
In the Valley and Ridge physiographic province of Pennsylvania, 137 springs have a single or median discharge value equal to or greater than 100 gallons per minute. Information for these large springs has been tabulated to summarize the data useful to the U.S. Geological Survey's Appalachian Valleys--Piedmont Regional Aquifer-System Analysis...
Ground-water levels in Arkansas, spring 1989
P.W. Westerfield, G.J. Gonthier
1990, Open-File Report 90-121
Groundwater level measurements were made in 527 wells in Arkansas in the spring of 1989. These data are listed in tables by aquifer and then by county. For each well, the altitude of the land surface, the date of measurement, the depth to the water surface, and the altitude of...
Estimated demand for agricultural water for irrigation use in New Jersey, 1990
E.O. Titus, R.M. Clawges, C.L. Qualls
1990, Open-File Report 90-156
As part of an effort to determine if an adequate supply of agricultural water for irrigation use will be available to farmers, the U.S. Geological Survey prepared preliminary estimates of demand for agricultural water for irrigation use for the year 1990 on the basis of six possible scenarios. These scenarios...
Data on polychlorinated biphenyls, dieldrin, lead, and cadmium in Wisconsin and Upper Michigan tributaries to Green Bay, July 1987 through April 1988
L. B. House
1990, Open-File Report 89-52
A reconnaissance study was conducted of 22 streams tributary to Green Bay to determine whether any of the streams contribute toxic substances to the bay. This effort was part of a comprehensive investigation of Green Bay funded by the U.S. Environmental Protection Agency, Great Lakes National Program Office. The U.S. Geological...
Ground-water flow in the New Jersey coastal plain
Mary Martin
1990, Open-File Report 87-528
Flow was simulated in 10 aquifers of the New Jersey Coastal Plain using a multilayer finite-difference model for prepumping steady-state conditions and transient conditions from 1896-1981. The highest transmissivity, greater than 10,000 sq ft/day, is in Camden and Gloucester Counties in the Potomac-Raritan-Magothy aquifers; Monmouth and Ocean Counties in the...
Techniques for estimating flood-peak discharges of rural, unregulated streams in Ohio
G. F. Koltun, J.W. Roberts
1990, Water-Resources Investigations Report 89-4126
Multiple-regression equations are presented for estimating flood-peak discharges having recurrence intervals of 2, 5, 10, 25, 50, and 100 years at ungaged sites on rural, unregulated streams in Ohio. The average standard errors of prediction for the equations range from 33.4% to 41.4%. Peak discharge estimates determined by log-Pearson...