Colored paint marks on the pavement and/or in the grass (sometimes accompanied by similarly colored flags) indicate the location of underground utilities in areas where some type of digging is to occur. Each color marks a different type of utility: red for electric, yellow for natural gas, orange for telephone or cable TV, blue for water, and green for sewer. White flags or paint may also be used to indicate the dig site. Please be sure not to disturb the markings until the work has been completed.