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open access

An Assessment of Steady-State Propane-Gas Tracer Method for Reaeration Coefficients--Cowaselon Creek, New York

Description: From purpose and scope: The purpose of this report is to develop and test steady-state method for the measurement of propane-gas desorption coefficients in a natural channel flow as the first phase of the field assessments of hydrocarbon gas tracer method for reaeration coefficients. Three field tests were conducted in a straight 5.2 km reach of the Cowaselon Creek near Canastota, New York in June, July, and October, 1981.
Date: 1983
Creator: Yotsukura, N.; Stedfast, D. A.; Draper, R. E. & Brutsaert, W. H.
open access

Computation of Inflows and Outflows of Eight Regulated Lakes in the Oswego River Basin, New York, 1930-79

Description: Purpose and scope: This report describes (1) methods of computation used to obtain the daily lake inflows and outflows and river discharges; (2) sources of error and their implications for reliability of the computed values; and (3) a technique for smoothing lake-level hydrographs that minimizes the effect of random fluctuations in daily lake-levels resulting from seiche or wind action.
Date: 1983
Creator: Lumia, Richard & Moore, Richard B.
open access

Effects of Sanitary Sewers on Ground-Water Levels and Streams in Nassau and Suffolk Counties, New York, Part 1: Geohydrology, Modeling Strategy, and Regional Evaluation

Description: From purpose and scope: This report is the first in a three-part series describing the U.S. Geological Survey's efforts in the detailed hydrologic investigation of southern Nassau and southwest Suffolk Counties, which includes a ground-water modeling study to predict the effects of an extensive sewer network scheduled to be completed in 1985. As the introduction to the series, this report has four objectives: (1) to present a detailed description of the hydrologic system in the area, including … more
Date: 1983
Creator: Reilly, Thomas E.; Buxton, Herbert T.; Franke, O. L. & Wait, R. L.
open access

Geohydrology of the Meadowbrook Artificial-Recharge Site at East Meadow, Nassau County, New York

Description: Purpose and scope: The Meadowbrook artificial-recharge project, a cooperative effort between the U.S. Geological Survey and the Nassau County Department of Public Works (NCDPW) since 1975, is intended to demonstrate the feasibility of using reclaimed wastewater to replenish and improve the quality of Long Island's ground water. This report presents the results of geologic, hydrologic, and hydrochemical studies that were done at the Meadowbrook artificial-recharge site to define conditions preva… more
Date: 1983
Creator: Aronson, David A.; Lindner, Juli B. & Katz, Brian G.
open access

Geologic Reconnaissance of an Extensive Clay Unit in North-Central Suffolk County, Long Island, New York

Description: Purpose and scope: This report presents results from an evaluation of geologic data collected and compiled as part of a continuing investigation and appraisal of hydrologic conditions in Suffolk County. The investigation is part of a cooperative program of water-resources studies made by the U.S. Geological Survey in cooperation with the Suffolk County Water Authority and the Suffolk County Department of Health Services.
Date: 1983
Creator: Krulikas, Richard K. & Koszalka, Edward J.
open access

Geology of the "20-Foot" Clay and Gardiners Clay in Southern Nassau and Southwestern Suffolk Counties, Long Island, New York

Description: Purpose and scope: This report depicts in detail the areal extent, altitude, thickness, and lithology of the "20-foot" clay and Gardiners Clay (the two thickest and most extensive near-surface confining layers in the area) and redefines the surface of the geologic units that directly underlie these clay units at various locations--the Matawan Group-Magothy Formation, undifferentiated, the Monmouth Group, and the Jameco Gravel.
Date: 1983
Creator: Doriski, Thomas P. & Wilde-Katz, Franceska
open access

Hydraulic Considerations in Sampling the Unsaturated Zone with Inclined Gravity Lysimeters

Description: Purpose and scope: This report discusses the design, theory of operation, performance characteristics, and sampling implications if the inclined gravity lysimeter. This variation of a gravity lysimeter can be constructed to maximize capture efficiency and eliminate artificial filtration and is used most successfully in coarse, moist soils where access for installation is from a trench or observation manhole.
Date: 1983
Creator: Oaksford, Edward T.
open access

Polychlorinated Byphenyl Concentrations in Hudson River Water and Treated Drinking Water at Waterford, New York

Description: From purpose and scope: This study was undertaken to evaluate the reduction in PCB concentrations in Hudson River water that occurs during treatment at the Waterford plant. The concentration of PCB's in untreated Hudson River water were compared with those in treated drinking water at Waterford, and an average removal efficiency at the treatment plant was calculated.
Date: 1983
Creator: Schroeder, Roy A. & Barnes, Charles R.
open access

Trends in Polychlorinated Biphenyl Concentrations in Hudson River Water Five Years after Elimination of Point Sources

Description: From purpose and scope: The main purpose of this monitoring was to gather several years of data on PCB concentrations preparatory to removal of contaminated sediments by dredging, which was originally scheduled for the early 1980's. Plans for dredging and disposal of sediments are currently being reevaluated. This report examines the contribution and transport of PCB's (polychlorinated biphenyls) from various reaches of the Hudson River and the changes in PCB concentration since 1977, when disc… more
Date: 1983
Creator: Schroeder, Roy A. & Barnes, Charles R.
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