Download or read book Mouth of the Columbia River Offshore Disposal Site Study written by Global Remote Sensing, LLC. and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Columbia River Dredged Disposal Site Designation written by and published by . This book was released on 1983 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquatic Disposal Field Investigations Columbia River Disposal Site Oregon Evaluative Summary written by and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multidisciplinary study was conducted offshore of the mouth of the Columbia River to characterize the baseline physical, chemical, and biological aspects of the nearshore zone and to investigate the effects of open-water disposal on the study area. Physical data analyzed during the study indicate that dredged material deposited in the nearshore zone off the mouth of the Columbia River maintains its identity relative to surrounding sediments for periods of years and that such material migrates towards the north at a rate of approximately 0.6 kilo-metre per year. Chemical data suggest that the release of dredged material at the experimental disposal area has no measurable effect on either ambient water quality or quality of the sediments. Dredged material removed from the Columbia River entrance channel can be characterized as fine to medium sand with insignificant levels of pollutants. Bottom sediments examined from the tidal delta in the region of disposal site B consistently showed higher levels of nutrients and metals than sediments from adjacent sampling sites. Biological studies indicate that the disposal of dredged material had a measurable effect on both the benthic macroinvertebrates and the demersal finfish at the experimental disposal area.
Download or read book South Jetty Ocean Dredged Material Disposal Site Sediment Tracer Study Mouth of Columbia River written by ETS Worldwide Ltd and published by . This book was released on with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mouth of the Columbia River Shallow Water Ocean Dredged Material Disposal Site written by Hans R. Moritz and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquatic Disposal Field Investigations Columbia River Disposal Site Oregon Evaluative Summary written by and published by . This book was released on 1978 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multidisciplinary study was conducted offshore of the mouth of the Columbia River to characterize the baseline physical, chemical, and biological aspects of the nearshore zone and to investigate the effects of open-water disposal on the study area. Physical data analyzed during the study indicate that dredged material deposited in the nearshore zone off the mouth of the Columbia River maintains its identity relative to surrounding sediments for periods of years and that such material migrates towards the north at a rate of approximately 0.6 kilo-metre per year. Chemical data suggest that the release of dredged material at the experimental disposal area has no measurable effect on either ambient water quality or quality of the sediments. Dredged material removed from the Columbia River entrance channel can be characterized as fine to medium sand with insignificant levels of pollutants. Bottom sediments examined from the tidal delta in the region of disposal site B consistently showed higher levels of nutrients and metals than sediments from adjacent sampling sites. Biological studies indicate that the disposal of dredged material had a measurable effect on both the benthic macroinvertebrates and the demersal finfish at the experimental disposal area.
Download or read book 2005 Monitoring Studies at the Mouth of the Columbia River MCR Ocean Dredged Material Disposal Deep Water Site DWS written by Science Applications International Corporation and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dredged Material Disposal Site Designation Coquille written by and published by . This book was released on 1990 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monitoring Dredged Material Disposal at Mouth of Columbia River Washington Oregon USA written by and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The entrance channel at the Mouth of the Columbia River requires annual dredging of 3 to 5 million cu m (3.9 to 6.5 million cu yd) of fine-to-medium sand to maintain the navigation channel at the authorized depth. The sandy dredged material is placed in EPA- approved Ocean Dredged Material Disposal Sites (ODMDS). Exceedance of ODMDS capacity at the Mouth of the Columbia River creates two, operational problems for the Portland District: (a) The overall footprint of disposed dredged material extends beyond the existing ODMDS formally permitted boundaries by as much as 915 m (3,000 ft) in some cases, and (b) dredged material within the ODMDS has accumulated to such an aerial and vertical extent that adverse sea conditions are created. In some cases, mounds rise 18.3 to 21.4 m (60 to 70 ft) above surrounding bathymetry. Mariners report that the ODMDS mounds cause waves to steepen and/or break in the vicinity of the sites, and that these waves conditions are hazardous to navigation.
Download or read book Ocean Dumping On oversight of the Marine protection research and sanctuaries act of 1972 written by United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Fisheries and Wildlife Conservation and the Environment and published by . This book was released on 1976 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Umpqua River Ocean Dredged Material Disposal Site ODMDS Designation written by and published by . This book was released on 1991 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rogue River Ocean Dredged Material Disposal Site ODMDS Designation written by and published by . This book was released on 1991 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chetco Dredged Material Disposal Site Designation written by and published by . This book was released on 1991 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ocean Dumping written by United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Fisheries and Wildlife Conservation and the Environment and published by . This book was released on 1976 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Columbia River at the Mouth Navigation Channel Improvements OR WA written by and published by . This book was released on 1983 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report to the Congress on Ocean Dumping Research written by United States. National Oceanic and Atmospheric Administration and published by . This book was released on 1974 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report to the Congress on Ocean Dumping Monitoring and Research Submitted in Compliance with Section 201 Title II of the Marine Protection Research and Sanctuaries Act of 1972 Public Law 92 532 written by and published by . This book was released on 1974 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
