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digExcavation damage is the leading cause of serious natural gas pipeline incidents. Careless digging can damage underground utilities, causing disruption of vital services, property damage and even possible injury. Taking the proper steps to avoid damage can prevent expensive repairs, project delays and costly fines.

At least three business days, prior to outdoor construction or digging, contractors and property owners – whoever is excavating – must call New Jersey One Call at 811 or 800-272-1000 and take the following steps:

  • Wait for the site to be marked with paint, flags or stakes. Yellow indicates the presence of underground natural gas lines.
  • Respect the marks and dig with care.
  • Hand dig within two feet of buried piping and facilities.
  • Be mindful inclement weather may wash away the painted markings.

Don’t make assumptions about whether or not you should have your utility lines marked. Every digging job requires a call to 811 – even small projects like planting trees and shrubs.

Know what's below and call before you dig - 811 or 800-272-1000. It’s FREE and it’s the LAW.  For additional information about New Jersey One Call, visit their Web site at

Download NJNG’s Call Before You Dig brochure, written in both Spanish and English. To request a FREE printed copy of this brochure, send an e-mail request to or call

If damage occurs to natural gas lines, no matter how minor, report it immediately to 911 and call NJNG at 800-GAS-LEAK (427-5325). Property owners near NJNG’s pipeline facilities should report any suspicious activity by contacting 800-221-0051.

Beginning in February, NJNG - along with other utilities throughout the state - are conducting our annual Damage Prevention Seminars to promote the importance of safe digging practices. Both homeowners and excavators are encouraged to attend one of these FREE sessions. Click here to register for a session near you.

Always remember to call before you dig to prevent damage.