Washington State Law requires that underground utilities be marked before you dig. The City of Kirkland marks city utilities in the public right-of-way only. Puget Sound Energy, Comcast, Ziply, Northshore Utility District, Woodinville Water, and others have underground assets in Kirkland as well.
Some underground utilities belong to you, such as your side sewer, water service line, and private storm water system. The city does not mark underground utilities on private property. You will need to hire a private company to mark your personal property.
The paint used for locate markings is designed to wear away in time. The city does not remove it. The color of the paint indicates what type of asset has been marked.
The Washington Utility Notification Center and Washington811.com have more information about marking underground utilities. Call 811 before you dig.