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Baseline water quality of Schmidt, Hornbeam, and Horseshoe Lakes, Dakota County, Minnesota
G. A. Payne
1980, Water-Resources Investigations Report 80-3
Three lakes in Dakota County were sampled five times during an 18-month period to determine baseline water quality prior to construction of an interstate highway. Results of physical measurements and chemical analyses showed that the lakes were shallow, nonstratified, and nutrient enriched. Considerable seasonal variations in dissolved solids, nutrient, and...
Plan of study for the Northern Atlantic Coastal Plain Regional Aquifer System Analysis
Harold Meisler
1980, Water-Resources Investigations Report 80-16
Sediments of Cretaceous to Holocene age compose the Northern Atlantic Coastal Plain aquifer system in an area of 50,000 square miles in parts of New York, New Jersey, Delaware, Maryland, Virginia, and North Carolina. The aquifer system is a major source of water supply in the area. About 1.4 billion...
The effects of using ground water to maintain water levels of Cedar Lake, Wisconsin
R.S. McLeod
1980, Water-Resources Investigations Report 80-23
Cedar Lake, a kettle lake with no surface inlet or outlet, was studied to evaluate the feasibility of maintaining water levels of lakes in the glaciated kettle moraine area of eastern Wisconsin by pumping ground water into them. The general hydrogeology of the area around the lake was defined and...
Development of a digital model of ground-water flow in deeply weathered crystalline rock, Chester County, Pennsylvania
Laurence J. McGreevy, Ronald A. Sloto
1980, Water-Resources Investigations Report 80-2
The model developed in this study simulates .recharge to, flow through, and discharge from the water-table aquifer in the upper Pickering Creek basin, a 5.98-square-mile basin representative of most of Chester County, Pennsylvania. The two-dimensional finite-difference model of Trescott, Pinder, and Larson was used with slight modification. The way ground-water...
Quality of urban runoff, Tecolote Creek drainage area, San Diego County, California
James G. Setmire, Wesley L. Bradford
1980, Water-Resources Investigations Report 80-70
The quality of storm runoff from a 9.2-square-mile urbanized watershed, Tecolote Creek, San Diego County, Calif., was studied during nine storms from September 1976 through May 1977. Specific conductance reached 2,100 micromhos and total residue concentrations reached 2,770 milligrams per liter. The chemical oxygen demand concentration in 95% of the...
Preliminary analysis of regional-precipitation periodicity
Charles A. Perry
1980, Water-Resources Investigations Report 80-74
Precipitation variability plays a major role in nearly every aspect of the hydrologic cycle. Precipitation is not a random event, but it occurs after a sequence of prerequi-sites has been fulfilled. Recent investigations have shown that activity of the sun can affect atmospheric vorticity, an important factor in precipitation formation....
Analysis of stream quality in the Yampa River Basin, Colorado and Wyoming
Dennis A. Wentz, Timothy Doak Steele
1980, Water-Resources Investigations Report 80-8
Historic data show no significant water-temperature changes since 1951 for the Little Snake or Yampa Rivers, the two major streams of the Yampa River basin in Colorado and Wyoming. Regional analyses indicate that harmonic-mean temperature is negatively correlated with altitude. No change in specific conductance since 1951 was noted for...
Effects of storm runoff on water quality in the Mill Creek drainage basin, Willingboro, New Jersey
James C. Schornick Jr., David K. Fishel
1980, Water-Resources Investigations Report 80-98
The effect of storm runoff on the quality of water in the the Mill Creek drainage basin in west-central New Jersey is described in this report. The study area (23.7 square kilometers) consists of agricultural and undeveloped land and the residential community of Willingboro. From October 1975 to September 1976,...
Ground-water availability near Fort Wayne, Allen County, Indiana
Michael Planert
1980, Water-Resources Investigations Report 80-34
A 3-year study to determine the groundwater potential of confined glacial aquifers in a large part of Allen County, Ind., was begun in July 1974 by the U.S. Geological Survey. Mapping of outwash sands and gravels delineated two distinct layers of sand and gravel in the southern and eastern parts...
Geohydrology of the Delta-Clearwater area, Alaska
Dorothy E. Wilcox
1980, Water-Resources Investigations Report 80-92
The alluvial aquifer in the Delta-Clearwater area, Alaska, is composed of lenticular, interbedded deposits of silt, sand, and gravel. Ground water occurs under both confined and unconfined conditions in the area. The potentiometric surface slopes approximately northward at gradients ranging from about 1 to 25 feet per mile. The aquifer...
Selected chemical quality characteristics in streams of Kentucky, 1970-1975
J.F. Santos
1980, Water-Resources Investigations Report 79-21
Generalized maps of average dissolved solids, hardness and nitrate concentrations of water in streams throughout Kentucky were prepared from data collected at more than 100 sites from 1970 to 1975. Average dissolved solids concentrations seldom exceed 250 milligrams per liter. Hardness, mostly of calcium magnesium origin, generally ranges from 60...
Sediment transport of streams tributary to San Francisco, San Pablo, and Suisun Bays, California, 1909-66
George Porterfield
1980, Water-Resources Investigations Report 80-64
A review of historical sedimentation data is presented, results of sediment-data collection for water years 1957-59 are summarized, and long-term sediment-discharge estimates from a preliminary report are updated. Comparison of results based on 3 years of data to those for the 10 water years, 1957-66, provides an indication of the...
Preliminary investigation of a shallow ground-water flow system associated with Connetquot Brook, Long Island, New York
Keith R. Prince
1980, Water-Resources Investigations Report 80-47
Under natural conditions, about 95 percent of the flow in Long Island streams is derived from ground-water seepage. The ground-water system that feeds the streams is a shallow subsystem that overlies the regional subsurface flow system. The Connetquot Brook basin was selected for study because it has not been appreciably...
Model evaluation of the hydrogeology of the Morris Bridge well field and vicinity in West-Central Florida
Paul D. Ryder, Dale M. Johnson, James M. Gerhart
1980, Water-Resources Investigations Report 80-29
The Morris Bridge well field in west-central Florida, which is being developed may have a maximum well-field withdrawal of 40 million gallons per day. The water will be pumped from the Floridan aquifer--a sequence of carbonate rocks about 1,100 feet thick underlying surficial sand and clay deposits. A highly fractured...
Permeability of covers over low-level radioactive-waste burial trenches, West Valley, Cattaraugus County, New York
David E. Prudic
1980, Water-Resources Investigations Report 80-55
Among the facilities at the Western New York Nuclear Service Center, near the hamlet of West Valley in the northern part of Cattaraugus County, N.Y., is a State-licensed burial ground for commercial low-level radioactive wastes. The 11-acre burial ground contains a series of trenches excavated in a silty-clay till of...
An analysis of the magnitude and frequency of floods on Oahu, Hawaii
R. H. Nakahara
1980, Water-Resources Investigations Report 80-45
An analysis of available peak-flow data for the island of Oahu, Hawaii, was made by using multiple regression techniques which related flood-frequency data to basin and climatic characteristics for 74 gaging stations on Oahu. In the analysis, several different groupings of stations were investigated, including divisions by geographic location and...
Hydrology of selected basins in the Warrior coal field, Alabama — A progress report
Celso Puente, John G. Newton, Thomas J. Hill
1980, Water-Resources Investigations Report 80-22
Hydrologic data are being collected in four basins in the Warrior coal field in Alabama to provide baseline information to aid in determining the effect mining will have on water resources. Basins monitored are in two different geologic and hydrologic environments. Two basins are underlain predominantly by relatively impermeable indurated...
Limnology of Lago Loiza, Puerto Rico
Ferdinand Quinones-Marquez
1980, Water-Resources Investigations Report 79-97
The principal chemical, physical and biological characteristics of Lago Loize, P.R., and its main tributaries were studied from 1973-74. The lake supplies an average of 300,000 cubic meters per day of water to metropolitan San Juan. Flows from Rio Grande de Loize and Rio Gurabo contribute 84.0 percent of the...
Ground-water hydrology of the Dade City area, Pasco County, Florida, with emphasis on the hydrologic effects of pumping from the Floridan aquifer
C. H. Tibbals, Warren Anderson, Charles P. Laughlin
1980, Water-Resources Investigations Report 80-33
The Dade City area, northeast Pasco County, Florida, is an area of about 260 square miles. Of the approximately 32 million gallons per day pumped from the Floridan aquifer in the area in 1975, about 16 million gallons per day were pumped from an area of about 0.25 square miles...