Last edited by Samut
Tuesday, July 14, 2020 | History

2 edition of Effects of dredging on water quality in the Northwest found in the catalog.

Effects of dredging on water quality in the Northwest

Gary O"Neal

Effects of dredging on water quality in the Northwest

by Gary O"Neal

  • 67 Want to read
  • 29 Currently reading

Published by Region X, Office of Water Programs, Environmental Protection Agency in Seattle .
Written in English

    Subjects:
  • Water -- Pollution -- Northwest, Pacific.,
  • Dredging -- Northwest, Pacific.

  • Edition Notes

    Bibliography: p. [75]-76.

    Statementprepared by Gary O"Neal [and] Jack Sceva.
    ContributionsSceva, Jack Edward.
    The Physical Object
    Pagination158 p. :
    Number of Pages158
    ID Numbers
    Open LibraryOL17732447M

    IMPACT OF DREDGING WORKS IN COASTAL WATERS 3 Figure 1 Simplified empirical carbon flow dia gram for the phytoplankton -based ecosystem of the shelf waters of the North Sea. Note that, of the g C m-2 yr 1 of sea surface produced by the phytoplankton, the yield to man through pelagic food webs and pelagic fish is estimated to be gCited by: Several factors influence the magnitude of the effects of dredging: • size of the dredging operation, • frequency of dredging, • stream channel size and depth, • size of the material being dredged, • background levels of water and sediment quality, suspended sediment, and turbidity, • stream velocity, • design of final contours.

    5. If a conditioned water quality certification has been issued for your project, you must comply with the conditions specified in the certification as special conditions to this permit. For your convenience, a copy of the certification is attached if it contains such conditions. 6. Water Quality Monitoring Report. Date: July 26, Attached is the water quality monitoring results from the dredging operations for the New Bedford Harbor Dredge – Phase II from July 6, through July 22, Also included are the monitoring results from EPA Operable Unit #3 (OU #3) cap placement from July 6, through July

    References. Department of the Environment, Transport and the Regions. Batelle Pacific Northwest Laboratories, US Nuclear Regulatory Commission, Richland, Washington, Report No. CR Surfactants. In: Water Quality Sourcebook. A Guide to Water Quality Parameters. Water Quality Branch, Inland Waters Directorate, Environment. Dredging in shallow water areas are expected to have many of the same effects as general coastal dredging, and some additional effects specific to shallow water ecosystems. Effects of general coastal dredging and dredged material disposal include habitat removal, removal of existing benthic populations, burial of nearby benthos due to turbidity or.


Share this book
You might also like
Benjamin St. Clair.

Benjamin St. Clair.

Concerns in Western Europe

Concerns in Western Europe

Commonwealth Varieties, 1952-1980

Commonwealth Varieties, 1952-1980

Peasants in the Middle Ages

Peasants in the Middle Ages

Art of the cinema in ten European Countries

Art of the cinema in ten European Countries

Oven lane

Oven lane

Wireless home networking for dummies

Wireless home networking for dummies

Reeds Nautical Almanac

Reeds Nautical Almanac

Watch out for assault

Watch out for assault

English miracle plays, moralities and interludes

English miracle plays, moralities and interludes

Wildfowl.

Wildfowl.

Effects of dredging on water quality in the Northwest by Gary O"Neal Download PDF EPUB FB2

The results of those studies that do relate to dredging will be discussed below. The results of the many studies of spoil disposal methods and water quality effects conducted in the Great Lakes area by the Water Quality Office, EPA, (formerly the Federal Water Quality Adminis- tration) and the Corps of Engineers will also be discussed.

Get this from a library. Effects of dredging on water quality in the Northwest. [Gary O'Neal; Jack E Sceva; United States. Environmental Protection Agency.

Region X. Office of Water Programs.]. country as a whole. It is further recognized that dredging and dredged sediment disposal practices as part of waterway and harbor navigation depth maintenance will have some impact on beneficial uses and water quality of the waters at the dredging and dredged sediment disposal sites.

Effects of suction dredging on water quality and zooplankton community structure in a shallow of eutrophic lake, were evaluated.

The results showed that a decreasing trend for levels of phosphorus, organic matter, total suspended solids, Chlorophyll a and Secchi transparency in the water column was found, while levels of water depth, electrical conductivity, total dissolved solids and NO 3 Cited by: alterations to water currents and wave climates, which might effect navigation and conservation interests, and ; reduction or improvement of water quality.

Each of the potential effects from dredging and disposal are discussed in the following sections. In the case of contaminated sediment, dredging may also lead to deleterious effects on water quality and reef-associated biota by the release of contaminants (Brown and Holley,Lay and Zsolnay,Esslemont et al., ).Cited by: Dec 11,  · Dredging is mainly used to either maintain the depth of ports or create new shipping channels.

Large vessels require water of a certain depth to. Effects of Suction Dredging A Summary of Dredging Publications Written by Joe Cornell Draft of April 16, This article is a summary of facts and conclusions found in about two dozen published articles about the effects of suction dredging.

The purpose of this study is. Effects of Trawling and Dredging on Seafloor Habitat describes how assessment of fishing impacts depends on gear type, number and location of bottom tows, and the physical and biological characteristics of seafloor habitats.

Many experimental studies have documented acute, gear--specific effects of trawling and dredging on various types of habitat. Authoritative, up-to-date guide to dredging theory and practice. From selecting the right equipment, to evaluating environmental impact, to bidding on a project, Handbook of Dredging Engineering, Second Edition, is the last word on modern hydraulic dredging.5/5(2).

Jan 01,  · Hopper dredging operations release suspended sediment into the environment by agitation of the bed and by discharge of overflow slurries.

Monitoring of turbidity and suspended sediment concentrations in central Chesapeake Bay revealed two plumes: (1) an upper plume produced by overflow discharge and (2) a near-bottom plume produced by draghead agitation and rapid settling Cited by: Aug 01,  · This monitoring study encompassed a period prior to dredging, Environmental effects of dredging on sediment nutrients, carbon and granulometry in a tropical estuary.

Sediment and nutrient retention by freshwater wetland: effects on surface water quality. Criteria Reviews of Environmental Contaminationrev, 21, – Cited by: Handbook of Dredging Engineering, 2nd Edition [John B.

Herbich] on pashupatinathtempletrust.com *FREE* shipping on qualifying offers. Authoritative, up-to-date guide to dredging theory and practice. From selecting the right equipment, to evaluating environmental impactAuthor: John B.

Herbich. the possible impacts of suction dredging on the water quality, benthic habitat, and biota of the Fortymile River, Alaska (hereafter, Fortymile). In stream ecosystems, aquatic macroinvertebrates have become the primary assessment tool for resource managers (see Barbour et al.Cairns and Pratt ).

Several. Yuan, R. and Zhu, J., The effects of dredging on tidal range and saltwater intrusion in the Pearl River estuary. A dredging project in the Pearl River estuary would influence the topography Author: Jianrong Zhu. Effects of suction dredging on water quality and zooplankton community structure in a shallow of eutrophic lake, were evaluated.

The results showed that a decreasing trend for levels of phosphorus. Mar 18,  · Another point to make is that the academic literature has relatively little information on the geomorphic effects of river dredging in low-energy rivers.

A few key papers have highlighted the following morphological effects of dredging in high-energy rivers. In the next two sections, the effect of sediment resuspension during dredging and the duration of those effects will be illustrated by experiences at other sites.

of sand was added to areas adjacent to the dredging area. Water quality monitoring during dredging indicated that turbidity standards were exceeded on several occasions. Effects of Suction Dredging on Streams: a Review and an Evaluation Strategy By Bret C. Harvey and Thomas E. Lisle ABSTRACT Suction dredging for gold in river channels is a small-scale mining practice whereby streambed material is sucked up a pipe, passed over a sluice box to sort out the gold, and discarded as tail- ings over another area of bed.

Environmental Aspects of Dredging [R. Bray] on pashupatinathtempletrust.com *FREE* shipping on qualifying offers. Expanding a port, deepening a navigation channel or creating new land for development, introduces changes to our physicalBrand: CRC Press. In their evaluation of the nature and water quality impacts of dredging and dredged sediment disposal, Lee et al.

() Jones and Lee () monitored the watercolumn during more than 10 open-water disposal operations by measuring more than 30 physical and chemical parameters at.SOME EFFECTS OF DREDGING ON WATER QUALITY ANC' CORAL REEF ECOWGY David I. Grigg The demands of development on Caribbean Islands frequently dredging large volumes of sea saryi for land till, for cement making and fur creating improving passages and anchorage for pleasure boats and commercial rafts.Effects of dredging on water quality in the Northwest / (Seattle, Wash.: Environmental Protection Agency Office of Water Programs Region X, ), by Gary O'Neal, Jack Sceva, and United States.

Environmental Protection Agency. Region X. Office of Water Programs (page images at HathiTrust).