Call before you dig
Dial 811 for free utility pipeline location
When you dig on your property for any reason, it's important to have the locations of underground utilities verified and clearly marked. Striking a natural gas or electric line may result in service disruptions, bodily harm, fines and/or repair costs.
If you prefer to submit a utility location request online, visit the Washington Utility Notification Center.
How it works
Before you call 811, you should outline your dig area with white spray paint.
When you call, an operator will record information about your dig and notify affected utility companies, including PSE. We will dispatch a technician to mark the location of our electric and gas lines with paint and/or flags.
The law says you must call, even if you are a homeowner.
PSE locates and marks its own lines for free, but privately owned utility lines must be located by a separate vendor, typically for a fee. To better understand which utility pipelines belong to you, visit King County's interactive utility pipeline guide. You’ll find a list of private utility locating companies here.
When you dig
Mark the dig area with white paint or stakes so the locator knows where to search for utlities. Once the utilities have been marked, don't move the colored flags or alter the painted marks until construction is finished. Use only hand tools when digging within two feet of the marked lines. Support exposed gas pipelines with secure nylon straps, wood shoring, and ropes so they don't break. Use sand or rock-free dirt as backfill. Never build decks or other structures over pipelines or meters. Doing so runs a safety risk and prevents us from servicing the equipment.
For easy identification, underground utility pipelines are marked using the following color code:
|Purple||Reclaimed water (not potable)|
Pipeline marker facts
Pipeline markers are used to indicate the presence of high-profile natural gas pipelines and are typically situated along highways and intersections between major roads and railways. These markers display the name and emergency contact information of the pipeline operator.
Pipeline markers and warning signs only indicate the presence of a pipeline and should not be used to determine its exact location.