Wash. Rev. Code § 11.08.205
(5) Any expenses by the department of natural resources in preserving or maintaining the real property may be paid as follows:
(b) Second, if the expenses exceed the escheat reserve account, then the expenses shall be paid as follows:
(6) Upon the final distribution of the real property, the escheat reserve account shall be closed out as follows:
[ 1969 ex.s. c 249 s 1.]