Wash. Rev. Code § 57.04.110
A district whose boundaries are identical with, or if the district is located entirely within, the boundaries of a city or town may be dissolved by summary dissolution proceedings if the district is free from all debts and liabilities except contractual obligations between the district and the city or town. Summary dissolution shall take place if the board of commissioners of the district votes unanimously to dissolve the district and to turn all of its property over to the city or town within which the district lies, and the council of such city or town unanimously passes an ordinance accepting the conveyance of the property and assets of the district tendered to the city or town by the district.
RCW 57.04.110
Part headings not law-Effective date-1996 c 230: See notes following RCW 57.02.001.
Acceptance by town: RCW 35.92.012.