Washington Revised Code Title 68. Cemeteries, Morgues, and Human Remains § 68.52.180. Review--When district formation is complete

(1) Any person, firm, or corporation having a substantial interest involved, and feeling aggrieved by any finding, determination, or resolution of the county legislative authority under the provisions of this chapter, may appeal within five days after the finding, determination, or resolution was made to the superior court of the county in the same manner as provided by law for appeals from orders of the county legislative authority.

(2) After the expiration of five days from the date of the resolution declaring the district formed, and upon filing of certified copies of the resolution in the offices of the county auditor and county assessor, the formation of the cemetery district is complete and its legal existence may not thereafter be questioned by any person by reason of any defect in the proceedings for the formation of the cemetery district.