Share this page Print

Contamination discovery

How to spot contamination

During construction, signs of possible contamination include, but are not limited to the following:

  • Rusted barrels and containers
  • Stained or discolored earth in contrast with adjoining soil
  • Fill material containing debris
  • Household trash covered by earth or industrial waste debris
  • Non-earthy odors which emanate when the earth is disturbed
  • Oily residue intermixed with earth
  • Sheen on groundwater
  • Structures such as asbestos cement pipe, abandoned pipes and underground storage tanks

If you discover contamination

As a City of Calgary Contractor, you must report any suspected contamination discovery to The City of Calgary Project Designate and to the Fire Department 403-264-1022 as soon as possible. For more information, please view our Contractor Environmental Responsibilities Package.