Contacting an electrical line can injure you and cause power outages. Hitting an underground gas pipe can create a fire or explosion. These lines can be just a foot under the ground. So whether you want to plant a tree or dig a trench, call the local utility locator service to arrange to have the location of any buried lines marked.
Note: Call at least three days before you plant bushes or trees. Your property will be marked to show the location of underground cables and utilities.
The locator service provides the location of underground utilities, but not their depth. Before using power tools near buried facilities, hand dig to verify exact utility depth. Any time you suspect unmarked hazards, hand dig carefully.