| Title | Developing national guidelines for dredge disposal at sea / Élaboration de lignes directrices nationales pour les dépôts de dragage en mer |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Lintern, G |
| Source | Public presentations of May 19, 2020: Environmental Geoscience Program, current status of research projects for the 2019-2024 program cycle; by Jacob, N; Outridge, P M; Lintern, G; Bringué, M; Ahad, J M E; Gammon, P R; Rivard, C; Kao, H; White, D; Desbarats, A J; Galloway, J M; Duchesne, M J; Geological Survey of Canada, Scientific Presentation 118, 2020 p. 12-26, https://doi.org/10.4095/326955  Open Access |
| Links | Video - Vidéo
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| Year | 2020 |
| Publisher | Natural Resources Canada |
| Meeting | Public presentations of May 19, 2020: Environmental Geoscience Program; CA; May 19, 2020 |
| Document | serial |
| Lang. | English; French |
| Media | on-line; digital |
| Related | This publication is contained in Public presentations of May
19, 2020: Environmental Geoscience Program, current status of research projects for the 2019-2024 program cycle |
| Related | This publication is related to Science-based dredge disposal
guidelines for port expansion |
| File format | pdf |
| Province | British Columbia; Western offshore region |
| NTS | 92B/13; 92B/14; 92B/15; 92F/07; 92F/08; 92F/09; 92F/10; 92F/11; 92F/14; 92F/15; 92F/16; 92G/02; 92G/03; 92G/04; 92G/05; 92G/06; 92G/11; 92G/12; 92K/02; 92K/03; 103J |
| Area | Strait of Georgia; Vancouver; Vancouver Island; Prince Rupert |
| Lat/Long WENS | -125.5000 -122.5000 50.2500 48.7500 |
| Lat/Long WENS | -132.0000 -130.0000 55.0000 54.0000 |
| Subjects | environmental geology; marine geology; surficial geology/geomorphology; geophysics; geochemistry; Nature and Environment; Science and Technology; Government and Politics; Economics and Industry;
Transport; environmental studies; environmental impacts; dredging; waste disposal; waste disposal sites; marine environments; coastal environment; marine sediments; sediment dispersal; modelling; geophysical surveys; bathymetry; marine sediment
cores; isotopic studies; radioisotopes; lead; radium; hydrodynamics; oceanography; currents; bottom currents; Environmental Geoscience Program (EGP); Regional Ocean Disposal Advisory Committee; Canadian Environmental Protection Act 1999;
Environmental impact assessment; Infrastructures; Regulation; Methodology; Guidelines; cumulative effects |
| Illustrations | location maps; geoscientific sketch maps; plots; time series; photographs |
| Program | Environmental
Geoscience Program Management |
| Released | 2020 09 15 |
| Abstract | Coastal energy infrastructure and other port projects require dredging to make the sites suitable for construction. On the west coast of Canada, dredging has been required at many recently proposed port
sites. Environment and Climate Change Canada (ECCC) licences disposal of material at several large disposal-at-sea (DoS) sites on the coast. Proponents may also propose a new or temporary DoS site nearer to their development to save enormous shipping
time and costs. Depending on the level of contamination of the sediment to be disposed, and the methods used, the regulation may require sediment to be disposed at either a dispersive or non-dispersive site. In the past several years, 'guidelines for
determining dispersivity' have been proposed by NRCan (Lintern)/EC scientists and stipulated to two proponents. The validity of the methodology is being tested. NRCan is part of a triparty Regional Ocean Disposal Advisory Committee that will
investigate several aspects of dredge disposal on the coast, one of which is dispersivity of existing sites. NRCan is tasked with determining dispersivity at existing sites and with conducting sensitivity analysis of the variables used in the
existing guidelines. This requires oceanographic mooring instrumentation, data analysis and modeling. |
| Summary | (Plain Language Summary, not published)
This is the fifth year for the project leaders of the Environmental Geoscience Program (EGP) from the Geological Survey of Canada (GSC) within Natural
Resources Canada to present their annual scientific updates. Twelve power point presentations illustrate all the project status of all research going on within EGP. Subjects are connected to the following key words: Volcanoes, mercury, dredge
disposal at sea, oil spills, diluted bitumen, oil sands, aquifer impacts, induced seismicity, geological storage of carbon, cobalt, climate change, Mackenzie River Basin, permafrost thaw, permafrost geochemistry, and cumulative effects. |
| GEOSCAN ID | 326955 |
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