There are more than 1,800 miles of underground gas pipelines in our service area. Scratches, scrapes, dents, or gouges can result in a dangerous leak.

When you call 811, we'll mark the approximate location of our gas pipelines free of charge. This will help you avoid these pipelines and prevent damage that could cause a dangerous gas leak.

811 is free and available 24/7. Please call at least two days before you plan to dig.

Play It Safe

Developers, contractors, excavators, equipment operators, and anyone else working near our underground gas and electric lines also need to check O&R's Field Safety Guide to ensure compliance with regulations imposed by various local, state, and federal authorities.

How to Identify a Utility Marking

Utility companies will mark the location of their underground facilities using either colored paint or small flags. Each type of service has its own unique color.

Flag Key Color	Service
White	Proposed Excavation
Pink	Temporary Survey
Red	Electric
Yellow	Gas or Oil
Orange	Telephone and Cable
Blue	Potable Water
Purple	Reclaimed Water
Green	Sewer and Drain

If a Digging Accident Occurs

If a natural gas accident occurs, immediately evacuate the area and call O&R's Gas Emergency Hotline, 911, or your local gas provider.

Call 811 Before You Dig

If a digging accident occurs, call O&R's Gas Emergency Hotline at 1-800-533-5325, 911, or your local gas provider.

For accidents involving underground electric cables, call us at 1-877-434-4100.