Before you plant a tree, build and addition, put up a fence, or install a sprinkler system, state law requires that you call the Utility Notification Center at 800-922-1987 two full business days before digging in your yard. Do not include the day that you make the call. If you fail to do so, and you damage utility lines, you will be charged for repairs. The locating service is free. Please wait until all utilities have been marked. Then, proceed using the utility markings and locate sheets to help you safely complete your project.