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Stay Safe and Get the Job Done Right

More than 60 percent of Atmos Energy’s hazardous leaks in 2021 were caused by excavation damage. Even minor damage, such as a scrape, dent, or crease in a pipeline or its coating, can weaken a pipeline and lead to a future leak. Excavation damage can be prevented by contacting 811 at least 3 business days before excavation begins to have buried utility-owned pipelines located and marked. It's free, easy and it's the law.

Whether you are a professional excavator or “do-it-yourselfer,” if your job requires using heavy equipment or power tools, make sure all underground utility lines have been located and marked before digging begins. Natural gas pipelines should be exposed by hand digging inside the state-specific tolerance zone. If unmarked facilities are located, contact 811 again for additional assistance and to have facilities remarked.

Visit the National Excavator Initiative to find state 811 requirements and learn more about how to keep you, your crew and the public safe during the excavation process.

A call to 811 does not mark customer-owned lines or those inside buildings, except in Kansas. To identify those, contact a licensed plumber or qualified contractor. 

Know Your State Damage Prevention Requirements


Colorado Department of Regulatory Agencies - Public Utilities Commission  

Advance Notice: Two days, not to include the day of notice

Marks Valid: Thirty (30) days from the date of the locate or until no longer visible, whichever comes first. A new locate request must be sought after this time has expired.

Tolerance Zone: 18 inches


Kansas Corporation Commission

Advance Notice: Two full working days, not including the day of notice.

Marks Valid: 15 calendar days

Tolerance Zone: The area not less than 24 inches of the outside dimensions in all horizontal directions of an underground facility.  


Kentucky Public Service Commission  

Advance Notice: Two (2) working days

Marks Valid: 21 calendar days from the day of the initial request

Tolerance Zone: A distance not to exceed the combined width of the underground facility plus 24 inches measured from the outer edge of each side of the underground facility. “Working day” means every day, except Saturday, Sunday, and holidays established by federal or state statute.

For purposes of measuring any period of time prescribed or allowed under the Underground Facility Damage Prevention Act of 1994, a working day shall commence at 12:01 a.m. eastern time and end at 12 midnight eastern time excluding the day the locate request was made.


Louisiana Department of Public Safety and Corrections

Louisiana One Call

Advance Notice: 48 to 120 hours

Marks Valid: 20 calendar days or as long as the marks are still visible

Tolerance Zone: 18 inches


Mississippi Public Service Commission

Advance Notice: Three (3) working days

Marks Valid: 14 working days

Tolerance Zone: 18 inches


Tennessee Public Utility Commission  

Advance Notice: Not less than three (3) working days and not more than 10 working days

Marks Valid: 15 calendar days

Tolerance Zone: 24 inches  


Railroad Commission of Texas

Advance Notice: Two (2) working days, but not more than 14 days

Marks Valid: 14 working days

Tolerance Zone: 18 inches plus half the nominal diameter of the pipeline from the outside edge of either side of the pipeline.


State Corporation Commission of Virginia

Advance Notice: Two (2) working days, excluding the day of the call

Marks Valid: 15 working days

Tolerance Zone: 24 inches

Damaged Natural Gas Pipelines

The most common cause of outside natural gas leaks is digging or construction that disturbs natural gas pipelines. Even minor damage can weaken a pipeline and lead to a future leak.

If you nick, scrape, or dent a natural gas pipeline, call 911, then call Atmos Energy’s emergency number at 866.322.8667 so we can inspect the pipeline and make any needed repairs. 


Pipeline Right of Way Sign

Damage Prevention Information Request Form

If you would like additional information about safe digging practices and preventing damage to underground utilities, please complete the form below.

Please select "West Texas" for areas near Lubbock, Amarillo, and Midland/Odessa, and "Mid-Tex" for North, Central, and East Texas.

Go to the form

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