After 2 full working days, confirm that all utility operators have visited your property by comparing the various colors of the marks on your property to the list of utilities given to you. If a utility operator does not locate a utility line in the designated area, a representative will let you know they do not have a conflict by calling you, or painting an “OK” along with the company’s initials in the corresponding utility color. For example, if you do not have a gas line running through the area, the utility operator will write an “OK” in yellow paint in the designated area.