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Why take the risk? Know what’s below before you dig

Whether you’re building a fence or planting a vegetable garden, find out where underground utility lines are located before you start digging. Hitting a buried natural gas line can cause serious injury and expensive repairs for you and/or your contractor. It can even be fatal.

Before you dig, request a locate

In Ohio, Utah, Wyoming, and Idaho, requests must be made at least 48 hours before the project begins, excluding the day of the request. In North Carolina, requests must be made at least 72 hours before the project begins, excluding the day of the request. In Ontario, requests must be made at least five business days before the project begins. Utility locates must be completed and marked before any work begins. It's the law.

North Carolina: Visit nc811.org or call NC811 by dialing 811
Ohio: visit Ohio811 e-dig or Call 800-362-2764 or 811.

Ontario: Visit Ontario One Call
Utah, Wyoming and Idaho:  Visit call811.com or call 811

Why digging safely around natural gas lines matters

Head

Seriously hurting yourself, your family or neighbors.

Flame

Damaging property from a leak, fire or explosion.

Safety

Interrupting natural gas service to your community.

Dollar sign

Incurring expensive repairs, charges or legal action.

Steam

Causing harm to the environment.

What to do before you dig

One

Request a locate

Request a locate before starting your project.

You’ll be asked to provide:

  • Your name and address.
  • When work is expected to begin.
  • The type of project (fence, pool, etc.).
  • How you plan to dig (by hand or machine).
  • How deep you’re planning to dig.
Two

Wait for buried lines to be marked

Locators from natural gas, water, sewer, electric and telecommunications companies will visit your home and paint or put flags to mark underground lines.

Private lines installed by you or a contractor, such as a gas line from your house to a pool heater or barbecue, are not included as part of this work and will require a separate locate. You’ll need to hire a private locate company to mark these lines and there is a charge for this service.

Three

Respect the marks and dig safely

Once locates have been completed, follow the instructions and proper excavation practices to ensure a safe and smooth project. Review the information below prior to digging to make sure you are fully informed on what to look for and how to dig safely.

Backhoe icon

Won’t my contractor take care of this?

Never assume your contractor has taken care of it. Work in collaboration with them, and ask for verification that they’ve requested a locate before they start digging.

When do I need to call for a locate?

Any time you are digging on your property, a locate is required. Even small projects such as adding a garden or planting a tree require a locate. It’s free and it’s the law.

Illustration of stones, a pathway and plants in a garden

Landscaping

Wooden Fence

Building a fence

Sunflower

Digging a garden

Small house on large driveway

Installing a driveway

Shovel and potted plant on grass

Planting a tree

Illustration of a bridge

Building a deck

Pool with a red and white floaty

Installing a pool

Digging out basement

Waterproofing a basement


Know the color codes

Locates show the direction and approximate location of the natural gas line, but do not show their depth. A natural gas line could lie just a few inches below the surface.

A black circle with a yellow indicator circle in the middle.

Yellow: Natural gas, oil, steam

A black circle with a green indicator circle in the middle.

Green: Sewer, storm

A black circle with a red indicator circle in the middle.

Red: Electric

A black circle with an orange indicator circle in the middle.

Orange: Communication

A black circle with a blue indicator circle in the middle.

Blue: Water

A black circle with a pink indicator circle in the middle.

Purple: Irrigation, slurry

A black circle with a pink indicator circle in the middle.

Pink: Temporary survey markings

A black circle with a white indicator circle in the middle.

White: Proposed excavation

How to dig safely around natural gas lines

How to understand your locate

Locates show the approximate position of underground lines and cables, while locate sheets map out your work area. Here’s how to review both carefully before you dig.

How to dig around a natural gas line with a shovel

Buried lines may not be as deep as you expect. If you’re using equipment within one metre of a locate mark, here’s how to expose the natural gas line with a small shovel or a spade.

How to recognize a natural gas line?

Several types of natural gas lines may run below your property. Learn how to identify each type so you can dig carefully around them and avoid serious injury and damage.

What to do if you damage a natural gas line or smell gas

A circular design featuring a cross symbol, prominently displayed on a white backdrop.

Stop work immediately.

A white circle containing a person.

Clear everyone from the area.

A nose with a white circle wrapping it.

Call 911 if you smell or hear gas escaping.

A gold circle featuring a phone that is ringing.

Call Enbridge Gas emergency line

A contractor in a safety vest and hardhat operating a small excavator in a backyard. 2

Are you a contractor?

Hitting an underground utility can delay your project and put your crew, company and community at serious risk. Learn how to excavate safely to prevent injury, fines and penalties.

Frequently asked questions

Locates are color-coded ground markings identifying the approximate position of underground lines and cables on a proposed job site. They’re made using temporary paint or flags.

Any time you are digging on your property, a locate is required. Even small projects such as adding a garden or planting a tree require a locate. It’s free and it’s the law.

To get a free locate, call 811 or visit nc811.org for North Carolina, call 800-362-2764 or 8-1-1 or visit Ohio811 e-dig for Ohio, contact Ontario One Call for Ontario and call 811 or visit call811.com for Utah, Wyoming and Idaho.

Call before you dig service providers will notify all owners of buried infrastructure in your area on your behalf. These include but are not limited to: electric, water, sewage and Enbridge Gas, as well as telecommunication companies.

Utility locates are a free service. There’s no cost to you. Any privately owned infrastructure, such as a gas line that runs from your meter to your pool heater or barbecue, will not be covered under the request. You’ll need to hire a private locate company to mark these lines and there is a charge for this service.

A utility locate request must be made no less than two working days* before the project begins, excluding the day of the request. Utility locates must be completed and marked before any work begins. It's the law.

* 2 working days does not include weekends, legal holidays, or the day of the call/notification.

Your contractor should contact Ontario One Call for Ontario or 811 for US before they start digging on your property. However, we recommend checking with your contractor beforehand to ensure they have obtained the required locates.

You’ll need to provide your name and address, the date work is expected to begin, the type of project being completed, how you plan to dig (shovel, excavator, etc.) and how deep you plan to dig.

Any privately owned infrastructure, such as a gas line that runs from your meter to your pool heater or barbecue, will not be covered under the locate request. You’ll need to hire a private locate company to mark these lines and there is a charge for this service.

A qualified utility representative will visit your property and mark the location of all underground cables and pipes. They do this by painting or inserting flags in the ground along the path of the pipe or cable.

You can check the status of your request on the web portal. Owners of buried infrastructure will mark the status of their lines as either “clear” or “complete.” A clear status means there is no risk and that your proposed digging area is safe. A complete status means the locate has been marked on your property. All utilities must be marked as either clear or complete to proceed.

The actual location of the buried line may be within 18 inches (Ohio), 24 inches (North Carolina, Utah, Wyoming, and Idaho), or one metre (Ontario) on either side of the paint or locate flags placed on your property. This is referred to as the tolerance zone. When digging in the tolerance zone, you must first use hand tools (such as a shovel or spade) to carefully expose any buried utilities before using mechanized equipment.

An Enbridge Gas locate are valid for as below:
North Carolina: Locates are valid for 28 days from the Work Date listed on the ticket.
Ohio: Locates do not expire as long as the markings remain clearly visible.
Ontario: Locates are valid for 60 days from the date they are completed.
Utah, Wyoming and Idaho: Locates are valid for 21 days from the date they are completed.
If your locate has expired or the markings are no longer visible, you must request a new locate before continuing your project.

Moving or removing locates makes them invalid and you’ll be liable for any damage that occurs on your property. You must contact Ontario One Call for Ontario or 811 for US to arrange a new locate before you or your contractor can start digging.

If you smell rotten eggs, hear an unusual hissing sound, or see dust or leaves blowing in a localized area, you may have damaged a line. You may also see a physical puncture or gouge on the line.