Evaluation and Design of Marine Habitat Offsetting for Multiple Projects Near Esquimalt Harbour, British Columbia Jessica Wilson1, John Readshaw1, Doug McMillan1, Jeff Lainsbury1, Scott Irwin2 1SNC-Lavalin 2Defense Construction Canada
The objective of this presentation is to discuss the coastal engineering aspects of three Department of National Defence projects, including the evaluation of offsetting options, design approach, and conceptual design.
Controlling Suspended Sediments During Phase 2 Sediment Remediation Dredging at the Esquimalt Graving Dock Norm Healey1, Dan Berlin2, David Mckeown3, Christopher Major4, Andrew Mylly4, Dave Osguthorpe4, Matt Woltman2, Tom Wang2, Ryan Hill1, Dave Kettlewell5 1Azimuth Consulting Group Partnership 2Anchor QEA, LLC 3SLR Consulting (Canada) Ltd. 4Public Services and Procurement Canada 5SNC-Lavalin Inc.
The objective of this presentation is to describe the design of a temporary resuspension barrier to prevent the recontamination of previously remediated sediments surrounding the Phase 2 remediation area of the Esquimalt Graving Dock and the methods and results of performance water and sediment quality monitoring to assess its effectiveness.
Fish Habitat in the Balance: When Does the Remediation Dredging Scale Tip From Net-environmental Benefit to Serious Harm to Fish? Derek Nishimura, Golder Associates Ltd.
The objective of this presentation is to discuss how the habitat values in Esquimalt Harbour were characterized, efforts made to avoid disruption of high value habitat, mitigation measures that could be applied to minimize changes to fish habitat, and finally, how these factors were brought together in an overall conclusion of whether serious harm to fish would result from remediation activities and facility upgrades and ultimately whether offsetting was needed.