Weather you’re planting a garden, building a fence or remodeling your home, no project is too small to call 811. Damage from digging is a common cause of pipeline accidents. One easy, free call to 811 Underground Service Alert (USA) at least tow working days before you dig gets your utility lines marked so you can dig safely. This free service will notify underground utility operators in the area of your planned work. PG&E will then locate and mark our underground gas and electric facilities.