Whether you're having a new fence or deck built, removing an old tree stump, planting or removing a tree or bush, or anything involving digging into the ground more than a few inches, please DIAL 811 to request a FREE underground utility location BEFORE you dig. You can also request this service online at their website: washington811.com. We may also be able to provide you an "As-Built" drawing of your sewer system upon request. Request As-Builts.