RCW 90.03.550: Municipal water supply purposes—Beneficial uses.

Beneficial uses of water under a municipal water supply purposes water right may include water withdrawn or diverted under such a right and used for:

(1) Uses that benefit fish and wildlife, water quality, or other instream resources or related habitat values; or

(2) Uses that are needed to implement environmental obligations called for by a watershed plan approved under chapter 90.82 RCW, or a comprehensive watershed plan adopted under RCW 90.54.040(1) after September 9, 2003, a federally approved habitat conservation plan prepared in response to the listing of a species as being endangered or threatened under the federal endangered species act, 16 U.S.C. Sec. 1531 et seq., a hydropower license of the federal energy regulatory commission, or a comprehensive irrigation district management plan.