In addition to any notifications that the owner or operator of a covered vessel must provide to the United States coast guard regarding a vessel emergency, the owner or operator of a covered vessel must notify the state of any vessel emergency that results in the discharge or substantial threat of discharge of oil to state waters or that may affect the natural resources of the state within one hour of the onset of that emergency. The purpose of this notification is to enable the department to coordinate with the vessel operator, contingency plan holder, and the United States coast guard to protect the public health, welfare, and natural resources of the state and to ensure all reasonable spill preparedness and response measures are in place prior to a spill occurring.