Publications
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Ground-water temperature of the with application to ground-water-source heat pumps
Ground-water temperature was measured during a one-year period (1980-81) in 20 wells in the Wyoming Quadrangle in central Delaware. Data from thermistors set at fixed depths in two wells were collected twice each week, and vertical temperature profiles of the remaining 18 wells were made monthly. Ground-water temperature at 8 feet below land surface in well Jc55-1 ranged from 45.0 degrees F in Feb
Authors
Arthur L. Hodges
Hydrologic data for the Potomac Formation in New Castle County, Delaware
Hydrologic data for the Potomac Formation in New Castle County, Delaware, consist of records of historical ground-water pumpage, water levels, water quality, and surface-water discharge. This report includes records of 405 wells and hydro-graphs of water levels in 86 wells. Pumpage from 20 well fields is reported. Also included are stream-discharge hydrographs for 6 stations for water years 1979 a
Authors
Mary M. Martin, Judith M. Denver
River basins of the United States: the Delaware
This leaflet, one of a series on the river basins of the United States, contains information on the Delaware River Basin, including a brief early history, a description of the physical characteristics, and other statistical data. At present, other river basins included in the series are The Colorado, The Columbia, The Hudson, The Potomac, and The Wabash.
Authors
Flood peaks and discharge summaries in the Delaware River basin
Streamflow data from 299 continuous and crest-stage sites in the Delaware River basin are summarized in this report. The location, drainage area, period of record, type of gage, and average discharge for each gaging site are given. Also included are tables of annual peaks and peaks above base, annual and monthly means, and annual and monthly runoff.
Authors
Arthur A. Vickers, Harry A. Farsett, J. Wayne Green
Estimating probabilities of reservoir storage for the upper Delaware River Basin
A technique for estimating conditional probabilities of reservoir system storage is described and applied to the upper Delaware River Basin. The results indicate that there is a 73 percent probability that the three major New York City reservoirs (Pepacton, Cannonsville, and Neversink) would be full by June 1, 1981, and only a 9 percent probability that storage would return to the "drought warning
Authors
Robert M. Hirsch
Report of the River Master of the Delaware River for the period December 1, 1979-November 30, 1980
No abstract available.
Authors
Francis T. Schaefer, Robert E. Fish
Plan of study for the Northern Atlantic Coastal Plain Regional Aquifer System Analysis
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 gallons is withdrawn from its aquifers each day. Increasing withdrawal of ground water has created
Authors
Harold Meisler
Organochlorine and heavy metal residues in black duck eggs from the Atlantic Flyway, 1978
Black duck (Anas rubripes) eggs were collected during 1978 in the Atlantic Flyway. One egg from each of 49 clutches was analyzed for organochlorine compounds and mercury. DDE was detected in 39 eggs, ranging from 0.09 ppm to 3.4 ppm, wet weight. DDE residues were highest in eggs from Delaware, where the mean DDE level was 2.0 ppm. DDT and TDE were present at Iow levels in only five and four eggs,
Authors
S. D. Haseltine, B. M. Mulhern, C. Stafford