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Extraction of bitumen remaining on the surface of the muskeg commenced on Friday, October 2. Cooler temperatures were needed to slightly harden the emulsified bitumen, allowing us to safely remove it without pushing it down and further contaminating the soils lower in the muskeg. As of late October 2015, approximately 60 per cent of the surface bitumen has been recovered.
Recovered water is being recycled. The recovered bitumen and earth will be disposed of in accordance with regulations.
Shot from the northern side of the spill.
In advance of migratory bird season, a white silage wrap was used to cover the impacted area to prevent birds from mistaking the area for muskeg or a mud flat.
Brightly coloured flagging is hung across the spill zone to deter wildlife. Markers with yellow flagging indicate a pipeline approximately 3 metres below the surface.
Clip 0048 & 0049:
A hydro-vac truck is being used to remove bitumen and water around the pipeline. Visual and audible deterrents have proven to be success in deterring and preventing wildlife from accessing the site, including:
effigies and cannons continually moved around the site to help prevent habituation (an effigy of a worker is visible to the right of the hydro-vac truck);
snow fencing and a six-foot high metal fence to prevent wildlife from accessing the area;
flagging around the perimeter and across the spill site, and white silage wrap;
silt fence, installed at the bottom of the wildlife fences, designed to deter small amphibians from entering the site.
Wildlife monitoring is ongoing.
A view of the spill zone from the most southern point of the spill site. The dark soil indicates zones where bitumen has been removed and remediation is ongoing. Workers conduct visual inspections and soil is being tested to ensure all bitumen has been recovered.
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