WorldCat Identities

Environmental Laboratory (U.S.)

Works: 3,765 works in 4,254 publications in 1 language and 4,939 library holdings
Genres: Classification  Surveys 
Roles: Other
Classifications: TA7,
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Most widely held works about Environmental Laboratory (U.S.)
Most widely held works by Environmental Laboratory (U.S.)
Overwash processes and foredune ecology, Nauset Spit, Massachusetts by Robert E Zaremba( )

1 edition published in 1984 in English and held by 27 WorldCat member libraries worldwide

Various techniques were used to provide insight into the dynamics of a northeast barrier beach system. A range of information collected during different time frames was examined to evaluate the role fo overwash and foredune processes in barrier beach dynamics. Overwash processes were described from field data collected during several minor storms and during a major northeaster in February 1978. The response of vegetation to overwash burial and the colonization of washovers by vegetation were studied using data collected between 1977 and 1979. Transects were established along Nauset Spit to determine the development of plant communities and morphological features on barrier environments that have a well-documented history. Aerial photographs and US Coast Survey maps were used to determine the changes in shoreline position and major barrier environments during the past 122 years. Earlier charts, maps, and accounts expanded these data back to the early 1600s, in a qualitative sense. Finally, cores and radiocarbon peat dates were used to define the geologic evolution of the barrier system
Regional supplement to the Corps of Engineers Wetland Delineation Manual : Midwest Region (Version 2.0)( Book )

10 editions published between 2007 and 2012 in English and held by 21 WorldCat member libraries worldwide

Interim regional supplement to the Corps of Engineers Wetland Delineation Manual : Alaska Region by United States( Book )

12 editions published between 2006 and 2010 in English and held by 20 WorldCat member libraries worldwide

Cost of water distribution system infrastructure rehabilitation, repair, and replacement by Thomas M Walski( )

1 edition published in 1985 in English and held by 18 WorldCat member libraries worldwide

This report presents data and estimating procedures for predicting the cost of several types of work involved with maintaining water systems, including cleaning and cement mortar lining of pipes, cathodic protection of buried pipes, repair of pipe breaks and leaks, replacing (relaying) water mains, and chemical addition to produce water that is neither corrosive nor scaleforming. Ths report is intended to serve as a tool for water supply engineers required to develop planning level cost estimates of alternative rehabilitation measures. Keywords: Corrosion; Infrastructure; Pipelines; Rehabilitation; Water supplies
Application of procedures for testing and evaluating water distribution systems by Thomas M Walski( )

1 edition published in 1984 in English and held by 18 WorldCat member libraries worldwide

This report is made up of eight individual papers describing solutions to specific problems in evaluating water distribution systems. The topics range from general discussions on deterioration of water systems and the need for pipe network model calibration to examples of actual reports on pipe break analysis and model calibration. Other papers give examples of how pipe roughness tested and gage calibration can be performed. Two additional papers describe criteria for selecting differential pressure measuring devices for use with pitot tubes and a computer program for determining flow rates given these differential pressure readings. Subtopics include: manometers and pipe flow
A study of cutoff bendways on the Tombigbee River by C. H Pennington( Book )

2 editions published in 1981 in English and held by 15 WorldCat member libraries worldwide

Biological and physical data were collected from four bendways within the river portion of the Tennessee-Tombigbee Waterway (TTW) from Columbus, Mississippi, to Demopolis, Alabama: Rattlesnake Bend, Cooks Bend, Big Creek Bendway, and Hairston Bend. During this study, the four bendways had not all been cut off and had been impounded for varying lengths of time. At the completion of the TTW project, all four of the bendways will be severed from the main navigation channel. Four distinct areas within each bendway were compared: above the bendway; within the bendway; below the bendway; and within the cut. Sampling was conducted from January 1979 to September 1980 to coincide with four different river stage/water temperature regimes: late fall-moderate flow/ decreasing water temperature; winter-high flow/low temperature; spring-high flow/rising temperatures; and summer-low flow/warm water temperatures with increased probability of thermal stratification. Data were collected for numerous physical and water quality parameters, phytoplankton and chlorophyll, benthic macroinvertebrates, and fishes. During early September 1980 a mollusk and aquatic macrophyte survey was conducted at all four bendways. Sediment analysis and bottom profiles indicated that the substrate composition of some of the bendways is changing. Overall, the substrate of the study area is changing from a sand-gravel-fines mixture to one of predominantly sand and fines. Areas of some bendways, in particular the upper areas, were accumulating sediments. At big Creek Bendway, this accumulation completely blocked water exchange between the river and the within-bendway areas
Evaluation of selected one-dimensional stream water-quality models with field data by Steve C McCutcheon( )

1 edition published in 1983 in English and held by 12 WorldCat member libraries worldwide

Engineering and economic analysis of containment area/wetlands disposal options in New York Harbor by Marian E Poindexter( )

1 edition published in 1989 in English and held by 12 WorldCat member libraries worldwide

Investigations were conducted to evaluate the engineering feasibility of constructing dredged material disposal sites at four locations within the New York Harbor area. The four sites identified by the New York District for evaluation were Bowery Bay, New York; Flushing Bay, New York; Newark Bay, New Jersey; and Raritan Bay, New Jersey. Each of these locations was evaluated for use with three disposal options: (a) disposal of uncontaminated sediments in a containment area; (b) disposal of contaminated sediments in a containment area; and (c) disposal of uncontaminated sediments to stabilize/create wetland habitats. Geotechnical analyses were conducted to evaluate the feasibility and cost of dredged material retaining dike construction. Retaining dike construction was found to be technically feasible, and a recommended dike design was presented for each site. Storage capacity evaluations were conducted for each disposal option to determine the ultimate quantity of material to be placed at each site. Total costs associated with each disposal option were determined including costs for marsh plantings. (fr)
Algorithm for determining the effectiveness of water conservation measures by W. G Richards( )

1 edition published in 1984 in English and held by 12 WorldCat member libraries worldwide

An algorithm has been developed to determine the effectiveness in reducing water use by the implementation of a variety of water conservation measures. The algorithm developed may be used to estimate water use reductions resulting from the implementation of a large number of conservation measures and combinations of measures, and is designed so that it may be easily programmed as a new module within the Methodology for Areawide Planning Studies (MAPS) computer program. The effectiveness of any water conservation program is dependent upon site-specific conditions, so caution should be used in applying the numerical values for reduction, coverage, and interaction factors presented in this report. To serve this purpose, detailed references are given so that the user can utilize the sources of data to ensure that the values selected are appropriate
Measurement of hydrologic parameters of confined dredged material at Wilmington Harbor, Delaware, containment area by James E Pizzuto( )

1 edition published in 1990 in English and held by 12 WorldCat member libraries worldwide

Planning manual for systematic river basin floodplain studies by Gert Aron( )

1 edition published in 1979 in English and held by 12 WorldCat member libraries worldwide

Floodplain management has become a topic of high national priority in recent years. Computer simulation programs, such as HEC-1 and HEC-2, have greatly increased the efficiency with which calculations can be performed once input data are properly formatted. The objective of this study was to develop systematic procedures for the conduct of river basin floodplain studies. Guidelines are presented for standardizing watershed subdivision and the collecting, processing, and storing of stream cross section, elevation, soils, land use, and other information in computer data bases. Methodologies for accessing data bases and generating input decks for computer programs HEC-1 and HEC-2 are presented. Also discussed are procedures for interfacing these two programs such that manual input requirements are minimized. Other topics addressed include the coding of bridges, the effect of reach length on computed water surface elevation, the areal and temporal distributions of rainfall, model calibration, the automated mapping of floods, and flood damage estimation. Three software routines and some pertinent reference materials are included in four appendixes. (Author)
Guidance for contracting biological and chemical evaluations of dredged material by Thomas C Sturgis( )

1 edition published in 1990 in English and held by 12 WorldCat member libraries worldwide

Design and specification of low pressure sewer systems for recreation areas by M. John Cullinane( )

1 edition published in 1985 in English and held by 12 WorldCat member libraries worldwide

The objective of a wastewater collection system is to convey wastes from the point of generation to the point of treatment or disposal. Pressure sewer systems have been suggested as a cost-effective alternative to gravity sewer systems in those cases where topographic or geological constraints make gravity sewer systems prohibitively expensive or technically infeasible. Design criteria for gravity sewer systems are well developed and readily available. On the other hand, design criteria for pressure sewer systems are limited and difficult to obtain. This report codifies design criteria for pressure sewer systems. The design of pressure sewer systems is accomplished by evaluating the requirements of the two major components of the system: the onsite pressurization unit and the offsite pressure sewer main. Design criteria and standards are presented for both the onsite and offsite portions of the system. Onsite facility design criteria include standards for septic tanks and wetwells, pressurization units, onsite piping, and onsite appurtenances. Offsite facility design criteria incude standards for hydraulic design, materials of construction, appurtenances, installation and testing, and special construction requirements. In addition to the specific design criteria, information is also provided on general system design considerations, estimation of design flows, and system costs. The emphasis in each of thee areas is placed on the unique requirements associated with US. Keywords: Army Corps of Engineers; Recreation Areas. (Author)
Wildlife community habitat evaluation using a modified species-area relationship by Richard L Schroeder( )

1 edition published in 1996 in English and held by 12 WorldCat member libraries worldwide

Simplified procedure for calculating chemical doses for water stabilization for prevention of internal corrosion and scaling by Joe Miller Morgan( )

1 edition published in 1984 in English and held by 12 WorldCat member libraries worldwide

This report documents two approaches for calculating chemical feed (i.e. lime and carbon dioxide) to produce a stable water to be distributed in a drinking water system. The procedures include: (a) a graphical solution embodied in nomograms contained in Appendix A of this report, and (b) a computerized procedure, written in BASIC, which can be immediately implemented on an IBM Personal Computer or Apple II and can be used on other systems with only minor modifications
Development of a management plan for Craney Island disposal area by Michael R Palermo( )

1 edition published in 1981 in English and held by 11 WorldCat member libraries worldwide

The Craney Island disposal area is a 2500-acre confined dredged material disposal site located near Norfolk, Virginia, one of the largest such sites in the Nation. The purpose of constructing such a diked disposal area is twofold: (a) to provide adequate storage capacity for dredged material over the design life of the facility and (b) to provide adequate sedimentation of dredged solids to maintain water quality of effluent
Sampling design for reservoir water quality investigations by Robert F Gaugush( )

1 edition published in 1987 in English and held by 11 WorldCat member libraries worldwide

Chemical clarification methods for confined dredged material dispoasal by P. R Schroeder( )

1 edition published in 1983 in English and held by 11 WorldCat member libraries worldwide

This report presents the results of verification studies on chemical clarification methods for dredged material disposal developed during the Dredged Material Research Program and provides laboratory procedures and design guidelines for designing treatment systems to clarify the effluent from a dredged material containment area. Guidelines are also presented on operating the systems and estimating the treatment costs. Thirty-five chemicals were screened in laboratory tests to determine which types of polymer were most effective in clarifying suspensions of fine-grained, freshwater sediments. Moderately high molecular weight, highly cationic polyamines performed well on the suspensions tested, which ranged in solids concentration from 0.21 to 2.1 g/l. The required polymer dosage increased with increasing solids concentration. The required dosage decreased as the mixing conditions were improved. Three field demonstrations were performed to determine the technical and economic feasibility of clarification by flocculants and to develop a treatment system that is simple, economical, and adapted to the disposal operation. Field tests showed that the treatment system was very effective. A preliminary laboratory and field investigation was performed to examine the polymer dosage requirements to treat dredged material slurries by injecting polymer into the dredge pipeline. Laboratory jar test procedures are presented to select an effective polymer (including dosage and feed concentration), to determine the mixing requirements, and to determine the mixing requirements, and to determine the relationship between the influent solids concentration or turbidity and the required polymer dosage
Riverine influences on the water quality characteristics of West Point Lake by Robert H Kennedy( )

1 edition published in 1984 in English and held by 11 WorldCat member libraries worldwide

Improvement of hydropower release dissolved oxygen with turbine venting by Steven C Wilhelms( )

1 edition published in 1987 in English and held by 11 WorldCat member libraries worldwide

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English (43)