These rules apply to all waters within the Green-Duwamish River basin, WRIA 9 (see WAC
173-500-040). This chapter is promulgated pursuant to chapter
90.54 RCW (Water Resources Act of 1971), chapter
90.22 RCW (minimum water flows and levels), and in accordance with chapter
173-500 WAC (water resources management program). The provisions of this chapter apply, as a matter of state law, to future water right authorizations issued pursuant to the state's water rights codes.