Postimpoundment survey of water-quality characteristics of Raystown Lake, Huntingdon and Bedford Counties, Pennsylvania
Donald R. Williams
1978, Water-Resources Investigations Report 78-42
Water-quality data, collected from May 1974 to September 1976 at thirteen sites within Raystown Lake and in the inflow and outflow channels, define the water-quality characteristics of the lake water and the effects of impoundment on the quality of the lake outflow. Depth-profile measurements show Raystown Lake to be dimictic....
Limnology of Laguna Tortuguero, Puerto Rico
Ferdinand Quinones-Marquez, Luis A. Fuste
1978, Water-Resources Investigations Report 77-122
The principal chemical, physical and biological characteristics, and the hydrology of Laguna Tortuguero, Puerto Rico, were studied from 1974-75. The lagoon, with an area of 2.24 square kilometers and a volume of about 2.68 million cubic meters, contains about 5 percent of seawater. Drainage through a canal on the north...
Technique for estimating the magnitude and frequency of floods in St. Louis County, Missouri
Donald Webster Spencer, Terry W. Alexander
1978, Water-Resources Investigations Report 78-139
Equations and nomographs in.this report can be used to estimate peak flood-discharges having recurrence intervals up to 100 years in rural and urban areas of St. Louis County, Mo. The basin characteristics significant at the 5-percent probability level were drainage area and percentage imperviousness. Drainage area can be measured from...
Model evaluation of the hydrogeology of the Cypress Creek well field in west-central Florida
Paul D. Ryder
1978, Water-Resources Investigations Report 78-79
The Cypress Creek well field is being developed to help supply a rapidly growing population in west-central Florida. The ground-water system in the Cypress Creek well-field area consists of a surficial sand aquifer, a semiconfining clay layer ranging from 2 to 25 feet in thickness, and a sequence of carbonate...
Guidelines for the use of structural versus regression analysis in geomorphic studies
W. R. Osterkamp, Jesse M. McNellis, Paul Robert Jordan
1978, Water-Resources Investigations Report 78-135
Simple-regression and structural analysis are similar methods of developing a linear relation from a bivariant group of data. Regression analysis is a useful curve-fitting technique, but often is misapplied to geomorphic data sets. When error components can be identified for both variables, the statistical technique of structural analysis is preferred....
Feasibility of water-supply development from the unconfined aquifer in Charlotte County, Florida
R. M. Wolansky
1978, Water-Resources Investigations Report 78-26
The unconfined aquifer in Charlotte County contains some potable water over most of the county, and represents a potential source of water supply to help satisfy the increasing demands of development. An estimated 150 billion cubic feet of relatively good quality water is stored in the unconfined aquifer. Transmissivity of...
Stream quality in the San Lorenzo River Basin, Santa Cruz County, California
Marc A. Sylvester, Kenneth J. Covay
1978, Water-Resources Investigations Report 78-19
Stream quality in the San Lorenzo River basin, Calif., was studied from November 1973 through June 1975 to determine areal and temporal variations in water quality, problem areas and times of water quality degradation, and compliance with State and local water-quality objectives. Sampling from November 1973 through July 1974 was...
Potentiometric surface of Floridan aquifer, Southwest Florida Water Management District and adjacent areas, September 1977
P.D. Ryder, L. R. Mills, C. P. Laughlin
1978, Water-Resources Investigations Report 78-9
A potentiometric-surface map of the Southwest Florida Water Management District depicts the annual high water-level period. Potentiometric levels increased 15 to 30 feet between May 1977 and September 1977 in the citrus and farming sections of southeastern Hillsborough, northern Hardee, and southwestern Polk Counties. These areas are widely affected by...
Method of estimating natural recharge to the Edwards Aquifer in the San Antonio area, Texas
Celso Puente
1978, Water-Resources Investigations Report 78-10
The method of estimating annual recharge is based on data collected from a network of stream-gaging stations and on assumptions related to applying the runoff characteristics from gaged areas to ungaged areas. The basic approach is a water-balance equation, in which recharge within a stream basin is the difference between...
Determination of acetone and methyl ethyl ketone in water
D. Y. Tai
1978, Water-Resources Investigations Report 78-123
Analytical procedures for the determination of acetone and methyl ethyl ketone in water samples were developed. Concentrations in the milligram-per-liter range were determined by injecting an aqueous sample into the analysis system through an injection port, trapping the organics on Tenax-GC at room temperature, and thermally desorbing the organics into...
Ground-water resources of the Marine Corps Base, Twentynine Palms, San Bernardino County, California
Donald H. Schaefer
1978, Water-Resources Investigations Report 77-37
The Marine Corps Base, Twentynine Palms, Calif., pumped 2,600 acre-feet of water in 1975 from five supply wells in the Surprise Spring subbasin. The water levels in those wells declined an average of 35 feet in the preceding 10 years. This decline is a result of (1) the proximity of...
Water quality in the Sugar Creek basin, Bloomington and Normal, Illinois
Byron J. Prugh Jr.
1978, Water-Resources Investigations Report 78-78
Sugar Creek, within the twin cities of Bloomington and Normal, Illinois, has differences in water quantity and quality as a result of urban runoff and overflows from combined sewers.Water-quality data from five primary and eight secondary locations showed three basic types of responses to climatic and hydrologic stresses. Stream temperatures...
Water-table map of Milwaukee County, Wisconsin
Marvin G. Sherrill, J.J. Schiller, John R. Erickson
1978, Water-Resources Investigations Report 79-40
A map (scale 1:100,000) of the water table in Milwaukee County in southeastern Wisconsin was prepared using water levels from more than 135 wells. The work was done as a cooperative project between the U.S. Geological Survey and the Southeastern Wisconsin Regional Planning Commission. The map shows the altitude of...
Subsurface geology and paleogeography of Queens County, Long Island, New York
Julian Soren
1978, Water-Resources Investigations Report 77-34
Unconsolidated strata of clay, silt, sand, and gravel of Late Cretaceous and pre-Wisconsin Pleistocene ages lie between crystalline basement rocks (bedrock) of Precambrian ( ) age and unconsolidated deposits of late Pleistocene (Wisconsin) and Holocene ages in Queens County, Lond Island, N.Y. Data collected during a recent study of the...
Inflatable straddle packers and associated equipment for hydraulic fracturing and hydrologic testing
Eugene Shuter, Robert R. Pemberton
1978, Water-Resources Investigations Report 78-55
Independent aquifer testing is the only way to fully understand the hydrology encountered in boreholes intersecting multiple aquifers. The most feasible method to accomplish the testing of multiple aquifer wells is through the use inflatable packers. The straddle packers and associated equipment herein described arE valuable tools for making isolated...
Hydrogeologic conditions in the town of Shelter Island, Suffolk County, Long Island, New York
Julian Soren
1978, Water-Resources Investigations Report 77-77
Shelter Island, an area of about 11 square miles, in Suffolk County, N.Y., is situated between the north and south forks of eastern Long Island. The upper glacial aquifer is the sole source of freshwater supply for Shelter Island 's population, which currently ranges seasonally from 2,000 to 8,000. Fresh...
Water resources of the Waccasassa River Basin and adjacent areas, Florida
G.F. Taylor, L.J. Snell
1978, Water-Resources Investigations Report 77-101
This map report was prepared in cooperation with the Southwest Florida Water Management District which, with the Waccasassa River Basin Board, had jurisdiction over waters within the Waccasassa River basin, the coastal areas adjacent to the basin, and other adjacent areas outside the basin. New water management district boundaries, effective...
Gas-driven pump for ground-water samples
Donald C. Signor
1978, Water-Resources Investigations Report 78-72
Observation wells installed for artificial-recharge research and other wells used in different ground-water programs are frequently cased with small-diameter steel pipe. To obtain samples from these small-diameter wells in order to monitor water quality, and to calibrate solute-transport models, a small-diameter pump with unique operating characteristics is required that causes...
Nitrification in four acidic streams in southern New Jersey
James C. Schornick Jr., Neil M. Ram
1978, Water-Resources Investigations Report 77-121
Four characteristically acidic streams in southern New Jersey were investigated to determine the effect of secondary effluent on nitrification in the receiving waters. Chemical and microbiological data were obtained at four sites on each stream. From these data seven factors were evaluated to determine the proclivity of each stream to...
Ground-water resources of the Cape Lookout National Seashore, North Carolina
M. D. Winner Jr.
1978, Water-Resources Investigations Report 78-52
Fresh groundwater in the Cape Lookout National Seashore in North Carolina occurs in the unconfined aquifer, an upper confined aquifer, and a lower limestome aquifer. The unconfined aquifer beneath dunes on the barrier islands is estimated to yield as much as 30 gallons per minute of freshwater to a horizontal...
An oilspill risk analysis for the southern California (proposed sale 48) Outer Continental Shelf lease area
James Richard Slack, Timothy Wyant, Kenneth J. Lanfear
1978, Water-Resources Investigations Report 78-80
An oilspill risk analysis was conducted to determine the relative environmental hazards of developing oil in different regions of the Southern California Outer Continental Shelf lease area. The study analyzed the probability of spill occurrences, likely paths of the spilled oil, and locations in space and time of such objects...
Water-table map of Racine County, Wisconsin
M.G. Sherrill, J.J. Schiller
1978, Water-Resources Investigations Report 79-41
A map (scale 1:100,000) of the water table in Racine County in southeastern Wisconsin was prepared using water levels from more than 250 wells. The work was done as a cooperative project between the U.S. Geological Survey and the Southeastern Wisconsin Regional Planning Commission. The map shows the altitude of...
Digital model of ground-water flow in the Piceance Basin, Rio Blanco and Garfield Counties, Colorado
John B. Weeks
1978, Water-Resources Investigations Report 78-46
The digital model used to simulate ground-water flow in the aquifer system in the basin drained by Piceance and Yellow Creeks in northwestern Colorado is described in detail. The model is quasi three-dimensional in that it simulates ground-water flow in a multiaquifer system by assuming horizontal flow in the aquifers...
Plan of study for the High Plains regional aquifer-system analysis in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming
John B. Weeks
1978, Water-Resources Investigations Report 78-70
The Ogallala Formation and associated Tertiary and Quarternary deposits form the principal aquifers supporting irrigation in the High Plains of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. The volume of water in storage within the aquifers is declining in most of the High Plains because water...
An oilspill risk analysis of the Mid-Atlantic (Proposed Sale 49) outer continental shelf lease area
James Richard Slack, Timothy Wyant
1978, Water-Resources Investigations Report 78-56
An oilspill risk analysis was conducted to determine the relative environmental hazards of developing oil in different regions of the mid-Atlantic Outer Continental Shelf lease area. The study analyzed the probability of spill occurrence, likely paths of the spilled oil, and locations in space and time of recreational and biological...
