before you dig! 811 notifies the appropriate utilities to locate (at no cost to you) utility-owned buried electric cable, TV cable, telephone lines and gas lines on your property. You can be held responsible for damages if you do not call 811 in advance. At least 48 hours before you begin a project that requires digging, call 811. Be sure to have the following information readily available: your name, address, township number, quarter section number and directions to your property.