(1) This chapter shall not be construed as creating a new cause of action against the state or any county, city, town, water supply utility, conservation district, or planning unit.

(2) Notwithstanding RCW 4.92.090, 4.96.010, and 64.40.020, no claim for damages may be filed against the state or any county, city, town, water supply utility, tribal governments, conservation district, or planning unit that or member of a planning unit who participates in a WRIA planning unit for performing responsibilities under this chapter.