Upon the written request of a riparian owner and upon payment of a service fee, the department may enter into a written agreement with the riparian owner establishing the location of the ordinary high-water mark for his or her property. In the absence of substantially changed conditions, the agreement is conclusive proof of the location in all matters between this state and the riparian owner and his or her successors in interest. Until October 1, 2025, the service fee provided for in this section is $500.00. The department shall forward service fees collected under this section to the state treasurer for deposit into the fund.