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Railway Embankment Flushing Program

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Oil remains in the soil within the railway embankment at the site.  It is contained with waterproofed steel sheet piling, booms, and underground concrete barriers which prevent oil and oily water from entering the river system.  CN has developed a flushing program to remove the oil remaining in the railway embankment.  Using a water pumping system, the oil is displaced from underneath the railway embankment into collection trenches where it is recovered.  The oil is then transferred to temporary liquid waste storage tanks and transported for off-site disposal.  This program began in November 2015 and continued into December 2015.  After December 2015, the water in the trenches will freeze; as such, recovery efforts will resume in spring 2016 and will continue through 2016.  Recovery points have been installed in the railway embankment to monitor oil levels in the railway embankment and to monitor the progress of the flushing/recovery efforts moving forward.

Learn more about the groundwater sampling program being conducted to monitor the groundwater quality surrounding the railway embankment.