The Washington Utilities Coordinating Council (WUCC) is a non-profit organization created for the benefit of preventing damages to various underground utilities including: power lines, phone lines, gas lines, water and sewer lines, and all other buried utilities. 

For more information check out their website at: http://washington-ucc.org/

CALL BEFORE YOU DIG
1-800-424-5555 or 8-1-1