RCW 79.140.210
Retroactive application- 2010 c 57 : "This act applies to all dredge spoil or materials removed from the state-owned beds and shores of the Toutle river, Coweeman river, and that portion of the Cowlitz river from two miles above the confluence of the Toutle river to its mouth deposited on adjacent public and private lands as a result of dredging the affected rivers for navigation and flood control purposes following the eruption of Mount St. Helens in 1980 that, as of June 10, 2010, have not been sold, transferred, or otherwise disposed of by owners of the lands. To this extent, this act applies retroactively, but in all other respects it applies prospectively." [2010 c 57 s 2.]