When the department finds valuable materials on state land that are damaged by fire, wind, flood, or from any other cause, it shall determine if the salvage of the damaged valuable materials is in the best interest of the trust for which the land is held, which may include the salvage of forest biomass under chapter 79.150 RCW. If salvaging the valuable materials is in the best interest of the trust, the department shall proceed to offer the valuable materials for sale. The valuable materials, when offered for sale, must be sold in the most expeditious and efficient manner as determined by the department. In determining if the sale is in the best interest of the trust the department shall consider the net value of the valuable materials and relevant elements of the physical and social environment.