Algal conditions and the potential for future algal problems in the Willamette River, Oregon
David A. Rickert, R.R. Petersen, S. W. McKenzie, W. G. Hines, S.A. Wille
1977, Circular 715-G
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 data for Utah, water year 1976
Water Resources Division, U.S. Geological Survey
1977, Water Data Report UT-76-1
No abstract available....
Water resources data for Minnesota, water year 1976
Water Resources Division, U.S. Geological Survey
1977, Water Data Report MN-76-1
Digital model analysis of the principal artesian aquifer, Savannah, Georgia area
H. B. Counts, R.E. Krause
1977, Water-Resources Investigations Report 76-133
A digital model of the principal artesian aquifer has been developed for the Savannah, Georgia, area. The model simulates the response of the aquifer system to various hydrologic stresses. Model results of the water levels and water-level changes are shown on maps. Computations may be extended in time, indicating changes...
Program objectives for the National Water Data Exchange (NAWDEX) for fiscal year 1978
Melvin D. Edwards
1977, Open-File Report 77-791
This report presents the program objectives for the National Water Data Exchange (Nawdex) for Fiscal Year 1978, October 1, 1977 to September 30, 1978. Objectives covered include Nawdex mambership, membership participation, Nawdex services, identification of sources of water data, the indexing of water data, systems development and implementation, training, recommended...
Availability of ground water in the Piscataqua and other coastal river basins southeastern New Hampshire
J. E. Cotton
1977, Water-Resources Investigations Report 77-70
This map (scale 1:125,000) is a preliminary assessment of the availability of ground water in the Piscataqua and coastal river basins in New Hampshire. It is a generalization of several hydrogeologic factors and provides a guide for ground-water exploration, which is useful in water- and land-use planning. The best aquifers...
Aeromagnetic map of the Gros Ventre area, Wyoming
Water Resources Division, U.S. Geological Survey
1977, Open-File Report 77-373
No abstract available....
Environmental geology, Allegheny County and vicinity, Pennsylvania: Description of a program and its results
Reginald Peter Briggs
1977, Circular 747
Past land-use practices, including mining, in Allegheny County, Pa., have resulted in three principal environmental problems, exclusive of air and water contamination. They are flooding, landsliding, and subsidence over underground mines. In 1973, information was most complete relative to flooding and least complete relative to landsliding. Accordingly, in July 1973,...
Aquatic organisms from selected sites along the Trans-Alaska Pipeline corridor, September 1970 to September 1972: supplement
Jon W. Nauman, Donald R. Kernodle
1977, Open-File Report 77-634
This report is a supplement to earlier preconstruction studies of benthic invertebrates and water quality at selected sites along the trans-Alaska pipeline corridor. Some of the problems which arose during the course of data collection and analysis are discussed. Benthic invertebrate abundance and community-structure data are presented for 20 sites...
Water resources data for Idaho, water year 1976
Water Resources Division, U.S. Geological Survey
1977, Water Data Report ID-76-1
Approximate depth to the water table, Montgomery County, Maryland
Claire A. Richardson
1977, Open-File Report 76-881
Water-resources investigations of the U.S. Geological Survey in Wyoming, October 1976 to September 1977
F. C. Boner
1977, Open-File Report 77-222
Water resources data for California, water year 1976; Volume 1: Colorado River basin, southern Great Basin from Mexican border to Mono Lake basin, and Pacific Slope basins from Tijuana River to Santa Maria River
California District of the Water Resources Division
1977, Water Data Report CA-76-1
Water-resources data for the 1976 water year for California consist of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; records of water levels in selected observation wells; and selected chemical analyses of ground water. Records for a few pertinent streamflow...
Water resources data for Florida, water year 1976; Volume 1, northeast Florida
Water Resources Division, U.S. Geological Survey
1977, Water Data Report FL-76-1
Water resources data for the 1975 water year in northeast Florida consists of discharge records for 59 streams, stage—only records for 12 streams, elevations for 67 lakes, and daily water level measurements for 98 wells. Water quality data for approximately 220 surface sites and 700 wells are included; as are...
Digital computer simulation model of the Englishtown aquifer in the northern coastal plain of New Jersey
W. D. Nichols
1977, Water-Resources Investigations Report 77-73
Continued decline of water levels in the Englishtown aquifer, in New Jersey, has caused considerable concern regarding the ability of the aquifer to meet future yield demands. A detailed study of the capability of the aquifer to yield water entailed the use of a digital computer simulation model to evaluate...
Biogeochemical prospecting for uranium with conifers: results from the Midnite Mine area, Washington
J. Thomas Nash, Frederick Norville Ward
1977, Open-File Report 77-354
The ash of needles, cones, and duff from Ponderosa pine (Pinus ponderosa Laws) growing near uranium deposits of the Midnite mine, Stevens County, Wash., contain as much as 200 parts per million (ppm) uranium. Needle samples containing more than 10 ppm uranium define zones that correlate well with known uranium...
Guide for data collection to calibrate a predictive digital ground-water model of the unconfined aquifer in and near the city of Modesto, California
R. W. Page
1977, Water-Resources Investigations Report 76-41
The city of Modesto encompasses about 12 square miles in the northeastern part of the San Joaquin Valley, Calif. The ground-water model encompasses about 542 square miles. In the Modesto area, ground water occurs in an unconfined aquifer a confined aquifer. both of which are composed of unconsolidated materials, and...
Magnitude and frequency of floods in California
Arvi O. Waananen, John R. Crippen
1977, Water-Resources Investigations Report 77-21
The magnitude and frequency of floods from gaged and ungaged drainage areas in California, for any recurrence interval from 2 to 100 years, can be estimated by use of the method presented. Equations relating flood magnitudes of selected frequency to basin characteristics such as drainage area, precipitation, and altitude were...
Derivation of equations describing solute transport in ground water
Leonard F. Konikow, D.B. Grove
1977, Water-Resources Investigations Report 77-19
A general equation describing the three-dimensional transport and dispersion of a reacting solute in flowing ground water is derived from the principle of conservation of mass. The derivation presented is more detailed but less rigorous than derivations published previously. The general solute-transport equation relates concentration changes to hydrodynamic dispersion, convective...
Theoretical drawdown due to simulated pumpage from the Ohio River alluvial aquifer near Siloam, Kentucky
J. M. Kernodle
1977, Water-Resources Investigations Report 77-24
Theoretical drawdown due to simulated pumpage was determined for a site near Siloam, Kentucky by using a digital ground-water-flow model. The maximum sustained yield of water from the single well was shown to be less than 900 gallons per minute, and, for a simulated pumping rate of 450 gallons per...
Availability of ground water in the lower Merrimack River basin southern New Hampshire
J. E. Cotton
1977, Water-Resources Investigations Report 77-69
This map, scale 1:125,000, is a preliminary assessment of the availability of ground water in the lower Merrimack River basin in southern New Hampshire. It is a generalization of several hydrogeologic factors and provides a guideline for ground-water exploration, which is useful in water- and land-use planning. It does not...
Public water supplies of selected municipalities in Florida, 1975
H.G. Healy
1977, Water-Resources Investigations Report 77-53
In 1975, the 169 municipalities and 5 county water systems listed in this report supplied 1.037 million gallons of water each day, on the average to 77 percent of the population of the State of Florida. The quantity of water supplied represented 90 percent of the State's public water supply...
Water resources data for Florida, water year 1976; Volume 4. Northwest Florida--surface water, ground water, and quality of water
Water Resources Division, U.S. Geological Survey
1977, Water Data Report FL-76-4
Water resources data for the 1976 water year for northwest Florida consist of records of stage, discharge, and water quality of streams; elevation and water quality of lakes and reservoirs; water-levels and water quality of wells; and discharge and water quality of springs. Additional water data were collected at various...
Evaluation of a potential well field near Church Rock as a water supply for , New Mexico
Glenn A. Hearne
1977, Water-Resources Investigations Report 77-98
No abstract available. ...
Ground-water levels in the United States, 1971-74, northwestern states
Water Resources Division, U.S. Geological Survey
1977, Water Supply Paper 2161
