The greatest risk to underground natural gas pipelines is the accidental damage during excavation. Remember to dig safely:

   Call 811 before digging.
   Wait for the site to be marked.
   Respect the marks.
   Dig with care.

The law requires that all persons planning excavations to notify the One-Call Center at least 48 hours (excluding weekends and holidays) before digging so underground utilities can be located. Calling 811 is free. You can also call these toll-free numbers: