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Page 2191, results 54751 - 54775

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Not all publications have extents, not all extents are completely accurate
Type curves for selected problems of flow to wells in confined aquifers
J.E. Reed
1980, Techniques of Water-Resources Investigations 03-B3
This report presents type curves and related material for 11 conditions of flow to wells m confined aquifers. These solutions, compiled from hydrologic literature, span an interval of time from Theis (1935) to Papadopulos, Bredehoeft, and Cooper (1973). Solutions are presented for constant discharge, constant drawdown, and variable discharge for pumping wells that fully penetrate leaky...
Evaluation of planning alternatives for maintaining desirable dissolved-oxygen concentrations in the Willamette River, Oregon
David A. Rickert, F. A. Rinella, W. G. Hines, S. W. McKenzie
1980, Circular 715-K
For nearly half a century the Willamette River in Oregon experienced severe dissolved-oxygen problems related to large loads of organically rich waste waters from industries and municipalities. Since the mid-1950 's dissolved oxygen quality has gradually improved owing to low-flow augmentation, the achievement of basinwide secondary treatment, and the use...
Water resources and geology of the Los Coyotes Indian Reservation and vicinity, San Diego County, California
A.P. Ballog Jr., W. R. Moyle Jr.
1980, Open-File Report 80-960
The water resources of the Los Coyotes Indian Reservation, San Diego County, Calif., are sufficient to supply the limited domestic and stock-water needs of the present residents of the reservation. Surface-water runoff is derived from direct precipitation on the area and from intermittent spring flow. Groundwater occurs in the alluvial...
Thermal modeling of flow in the San Diego Aqueduct, California, and its relation to evaporation
Harvey E. Jobson
1980, Professional Paper 1122
The thermal balance of the 26-kilometer long concrete-lined San Diego Aqueduct, a canal in southern California, was studied to determine the coefficients in a Dalton type evaporation formula. Meteorologic and hydraulic variables, as well as water temperature, were monitored continuously for a 1-year period. A thermal model was calibrated by...
Aquifer recharge from the 1969 and 1978 floods in the Mojave River basin, California
Anthony Buono, David J. Lang
1980, Open-File Report 80-207
The Mojave River basin, a high desert area in southwestern San Bernardino County, Calif., received 2.3 times the normal annual precipitation during the 1969 and 1978 water years. Precipitation in the mountainous upper part of the watershed is the primary source of flow in the Mojave River. Total precipitation at...
Geochemistry of fluoride in the Black Creek aquifer system of Horry and Georgetown Counties, South Carolina — And its physiological implications
Allen L. Zack
1980, Water Supply Paper 2067
High concentrations of fluoride in ground-water supplies in certain areas of Horry and Georgetown Counties, S.C., have been the cause of dental fluorosis (tooth mottling) among persons who have lived in these areas and have ingested the water as children. Geochemical evidence and laboratory experiments demonstrate that fluorapatite in the...
Geologic and hydrologic data from a test-monitor well at Fernandina Beach, Florida
David P. Brown
1980, Open-File Report 80-347
A 2,102-foot observation well was drilled at Fernandina Beach, Florida, to obtain geologic and hydrologic data. Drill cuttings, water samples, and water-level measurements were collected. Geologist's, driller's, and geophysical logs were completed. The well is constructed with 12-inch diameter casing to a depth of 515 feet and 6-inch diameter casing...
A computer program for simulating geohydrologic systems in three dimensions
D.R. Posson, G. A. Hearne, J.V. Tracy, P. F. Frenzel
1980, Open-File Report 80-421
This document is directed toward individuals who wish to use a computer program to simulate ground-water flow in three dimensions. The strongly implicit procedure (SIP) numerical method is used to solve the set of simultaneous equations. New data processing techniques and program input and output options are emphasized. The quifer...
Four reference soil and rock samples for measuring element availability in the Western Energy Regions
J.G. Crock, R. C. Severson
1980, Circular 841
Attaining acceptable precision in extractable element determinations is more difficult than in total element determinations. In total element determinations, dissolution of the sample is qualitatively checked by the clarity of the solution and the absence of residues. These criteria cannot be used for extracts. Possibilities for error are introduced in...
An economic analysis of selected strategies for dissolved-oxygen management; Chattahoochee River, Georgia
John E. Schefter, Robert M. Hirsch
1980, Professional Paper 1140
A method for evaluating the cost-effectiveness of alternative strategies for dissolved-oxygen (DO) management is demonstrated, using the Chattahoochee River, GA., as an example. The conceptual framework for the analysis is suggested by the economic theory of production. The minimum flow of the river and the percentage of the total waste...
Single-channel seismic-reflection profiles from Massachusetts coastal waters and the western part of Georges Bank
Diane M. Eskenasy
1980, Open-File Report 80-509
The U.S. Geological Survey collected approximately 1,200 km each of airgun and minisparker single-channel seismic-reflection profiles during the R/V FAY cruise 023 in September 1976. The purpose of the 6-day cruise was to study the shallow sedimentary structure south and east of southern Massachusetts and to obtain magnetic and gravity...
Notes on the geology of Tibet and adjacent areas; report of the American plate tectonics delegation to the People's Republic of China
A.W. Bally, Clarence R. Allen, R.B. Geyer, W.B. Hamilton, C.A. Hopson, P.H. Molnar, J.E. Oliver, N.D. Opdyke, George Plafker, F.T. Wu
1980, Open-File Report 80-501
Mean water levels in wells across Georgia were from 3.03 feet higher to 11.67 feet lower in 1979 than in 1978, and in some areas were the lowest on record. Water levels in the principal artesian aquifer underwent a long-term decline during the period 1970-79. In some areas water levels...
Irrigation water supply for the Yurok Indians, Resighini Rancheria, Klamath, California
J. P. Akers
1980, Open-File Report 80-404
A required 1,100 gallons of water per minute for irrigating agricultural lands used by the Coast Indian Community on the Resighini Rancheria near Klamath, Califomia, cannot be developed from wells. However, the required quantity of water might be developed from a trench installed in sand and gravel deposits that are...
Selected hydrologic data, Arkansas River basin, Pueblo and southeastern Fremont Counties, Colorado, 1975-80
Doug Cain, Patrick Edelmann
1980, Open-File Report 80-1185
Selected hydrologic data collected in 1975-80 as part of water-quality investigations by the U.S. Geological Survey in Pueblo and southeastern Fremont Counties, Colo., are presented in this report. The data, in tabular form, consist of streamflow-discharge measurements for 33 sites, channel-geometry measurements for 97 sites, traveltime data for 12 sites,...
Flood-prone area maps of three sites along the Trans-Alaska Pipeline, Alaska
Robert D. Lamke, Stanley H. Jones
1980, Open-File Report 80-209
The Bureau of Land Management requested on May 3, 1979 that the U.S. Geological Survey determine the base (100-year) flood-plain limits at three sites (fig. 1) along the Trans-Alaska Pipeline System Highway (Haul Road) between the Yukon River and Prudhoe Bay in order to issue land-use permits. The Alaska Department...