CHANGE ISLANDS — On Jan. 18 the Canadian Coast Guard successfully installed a new cofferdam on the Manolis L.
The new cofferdam is designed with increased bottom supports for the addition of extra weights. The cofferdam acts as a type of inverted funnel that collects oil leaking from the vessel. It can then be drained.
The previous cofferdam shifted from its position on the hull of the vessel and spilled the oil collected in the cofferdam.
In an emailed statement to the Pilot the Coast Guard noted that following the placement of the new cofferdam a full survey of the hull was completed and there was no oil detected on the surface of the water. There was no oil detected escaping from the new cofferdam during the survey.
The Coast Guard will return to the site after the winter ice season to remove any oil collected in the new cofferdam. At this time a check of the oil containment devices will be completed as well as an underwater survey of the hull to assess the status of the vessel.
Transport Canada has conducted aerial surveys of the shoreline and Environment Canada officials and environment response officers from the Coast Guard have surveyed the shoreline from the ground. These surveys have shown very little impact on the shoreline and any oil detected was small and not recoverable. No oil has been observed since the new cofferdam was installed.
The Coast Guard Environmental Response team is continuing to monitor the site using Transport Canada aerial surveillance and Coast Guard helicopters and vessels. Any sightings of oil can be reported to the Environmental Emergencies Line at (709) 772-2083 or 1-800-563-9089.