The legislature finds that:
Spartina poses a significant hydrological threat. Clumps and meadows of spartina are dense environments that bind sediments and lift the intertidal gradient up out of the intertidal zone through time. This process reduces flows during flood conditions, raises flood levels, and significantly alters the hydrological regime of estuarine areas.
Spartina spreads by rhizomes and seed production. Through lateral growth by rhizomes, spartina establishes a dense monotypic meadow. Through seed production and the spread of seed through the air and by water, spartina is currently being spread to other states and to Canadian provinces.
Any further delay of control efforts will significantly increase the cost of spartina and purple loosestrife control and reduce the likelihood of long-term success. Control efforts must be coordinated across political and ownership boundaries in order to be effective.
RCW 17.26.005