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Call Before You Dig

Ontario One Call

Before you dig, call Ontario One Call (24 hour call centre) at 1-800-400-2255 or visit the Ontario One Call website.

Ontario One Call is a not-for-profit organization that facilitates excavation locate requests to ensure homeowners, excavators and infrastructure owners are safe when digging.

There is no situation where digging is permitted before a request to locate services is performed.

Procedure for Calling Locates

You will need the following information when you call for locates before digging or excavating:

  • Address where locate needs to be done
  • Closest intersections/cross streets
  • Side of property that is being excavated
  • Start time of job (emergency or planned job)

It is important to keep a record of who you spoke with, the information that was given to you, as well as the date and time the call was made.