Concrete: coring, trenching or drilling

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Ground: digging, trenching or excavation

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Utility marking colours

  • Electrical
  • Gas, oil, steam
  • Telecom, cable
  • Water
  • Sewer, storm drain
  • Reclaimed water
  • Temporary survey
  • Proposed excavation

If you hit a line

  1. Stop work right away.
  2. If you smell gas, move everyone away and call 911.
  3. Call the utility owner.
  4. Do not backfill or repair it yourself.
  5. Photograph the area and tell your supervisor.
Emergency steps and numbers