Before You Dig If you are planning to dig on your property, you must call 811 to locate buried electrical, water/sewer, natural gas, cable and telephone lines. If you don’t, and cut one of these lines, you may be responsible for replacing it or worse, you could be killed. So please call 811 at least three days before you dig on your property. It might just save your life! ! CALL 811 BEFORE YOU DIG !