While clearing the site at Carlisle Barracks in Pennsylvania, the Hartman Co hit an underground storage tank that was not shown on the drawings, or mentioned in the specifications. The contracting officer needs time to identify and determine if the contents are considered hazardous material. What construction contract clause allows the contracting officer to stop the contractor's work? FAR 52.242-14, Suspension of Work Clause FAR 52.242-15, Stop Work Order FAR 52.249-10 Default Clause FAR 52.236-13/ 2.236-13 Accident Prevention