Download Free Aquatic Disposal Field Investigations Galveston Texas Offshore Disposal Site Appendix B Investigation Of Water Quality Parameters And Physicochemical Parameters Book in PDF and EPUB Free Download. You can read online Aquatic Disposal Field Investigations Galveston Texas Offshore Disposal Site Appendix B Investigation Of Water Quality Parameters And Physicochemical Parameters and write the review.

This study was part of an investigation to determine the environmental effects of offshore dredged material disposal at Galveston, Texas. The biological portion of the study was conducted in two phases: a pilot survey of the dredged material disposal site (DMDS) to determine the areal distribution of the biota and sediments; and an experimental study to assess the effect of dredged material disposal on the biota at selected sites in the DMDS. Three experimental sites were investigated: a sandy bottom that received sand, shell, and silt-clay dredged material; a muddy bottom that received sand and shell dredged material; and a muddy bottom that received silt-clay dredged material. The magnitude of the effect on the benthic populations could not be accurately assessed because adequate predisposal data on natural sediment and benthic population changes were not available. Dredged material deposits had no apparent effect on feeding habits of fish or on the distribution of nekton, although some nektonic species may have congregated in the turbid water following dredged material disposal. Zooplankton and phytoplankton studies detected no population changes during disposal that could not have been due to sampling error. It is probable that sudden abiotic changes and commercial fishing activities cause more destruction of biota than dredging-related activities.
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Under the Dredged Material Research Program (DMRP), studies of the impact of dredged material disposal in open-water systems (Aquatic Disposal Field Investigations (ADFI)) were conducted at five locations: New York (Eatons Neck), Ohio (Ashtabula River), Texas (Galveston), Oregon (Columbia River), and Washington (Duwamish Waterway). The sites were representative of a variety of disposal practices, dredged materials, and aquatic habitats. Disposal did not occur during the course of the Eatons Neck ADFI but did at the other four sites. This report summarizes the findings of the investigations.
This report is a guidelines manual to assist in selecting disposal alternatives for contaminated dredged material to minimize adverse environmental effects. It is directed to the small percentage of contaminated sediments that are believed to present a high potential for environmental harm, rather than the great majority of dredging projects that involve uncontaminated or slightly contaminated sediments. The contaminants and potentially nuisance substances considered in this report include: mercury, cadmium, lead, zinc, copper, nickel, chromium, arsenic, chlorinated hydrocarbons, petroleum hydrocarbons, iron, manganese, nitrogen, phosphorus, and sulfur. Individual contaminants, and in some cases groups of contaminants that behave similary, are discussed under separate headings. Many of the contaminants respond differently to physical, chemical, and biological conditions at a disposal site. The approach taken in this report is to point out the relative environmental risks of different disposal methods by identifying the possible disposal alternatives and discussing the problems associated with specific contaminants and disposal methods. Certain management practices that may be applicable to some disposal alternatives that will further reduce the environmental risk are also presented.
The 'Publication Index and Retrieval System' is designed to facilitate dissemination of the information contained in the more than 200 reports resulting from the Dredged Material Research Program (DMRP) and to foster operational applications of their findings and conclusions. Information referenced in this document is applicable to project environmental assessments, detailed design, construction, and operation and maintenance as well as evaluation under requirements of regulatory functions programs. Chapter 1 contains abstracts of the DMRP Synthesis Reports, which present summaries of findings for each of the major DMRP objectives with emphasis on the significance and application of the information. Chapters 2-9 contain abstracts for each of the detailed reports; the abstracts are identified under the major DMRP objectives. Chapter 10 contains the abstracts of the reports on the field tests and demonstration projects concerned with the effects of dredged material disposal in open water and the use of dredged material for habitat creation. The abstracts are also indexed as follows: subject, geographic location, agency/organization, and author. (Author).