The department may, following ten days' notice to the owner(s) and/or person(s) responsible for an extreme fire hazard that must be abated, summarily cause it to be abated, except that broadcast burning shall not be used by the department as an abatement procedure without prior written consent of all the owner(s) and/or person(s) responsible. This summary action may be taken ten days after notice as required by RCW 76.04.660. Obligations for recovery of costs incurred by the department shall be in accordance with RCW 76.04.660 and shall be prorated by the department to the owner(s) and/or person(s) responsible for the extreme fire hazard on the ratio of their acres of involvement to the total acres involved.