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Strachan Street Ravine

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  • 3,500 m3 historic low-level radioactive waste
  • Waste deposited in the ravine by Eldorado Nuclear Limited in keeping with disposal practices of the 1930s and 1940s
  • Consolidated against the roadbed under clean shielding in the 1980s
Site Details
  • Originally contaminated area was a steep ravine into which contaminated soils had been placed by end dumping
  • In 1988, waste throughout the ravine was consolidated into a mound on the north bank of the ravine
  • Site is currently secured with a low fence with signs noting its use as a LLRW storage site
  • LLRW consists of silty sand, gravel, organic material (including tree stumps), black and white ashy material, scrap metal, bricks, bottles, cinders, crockery, and chemical residues
Remediation/Restoration Plans
  • Geomembrane cover will be cut, progressively exposing sections of LLRW to be excavated.
  • The waste will travel along the Central Transportation Route to the Long-Term Waste Management Facility
  • When the remediation and verification process is complete, the site will be backfilled in a series of lifts extending from the bottom of the ravine up the slope to Strachan Street
  • Fencing will be removed and  top soil and grass will complete the restoration
Special Considerations
  • Since the site is currently subject to a license under the Nuclear Safety and Control Act, regulatory administrative procedures will be carried out in association with site remediation to allow the site to be relieved of the licence