An action to determine the validity of proceedings relating to the formation or existence of any maintenance benefit area created pursuant to this chapter including the validity of any service fee may be brought by the city council or any interested person in accordance with the provisions of Chapter 9 (commencing with Section 860) of Title 10 of Part 2 of the Code of Civil Procedure. The validity of such proceedings or service fee may only be contested, except by the city, within the time and in the manner therein specified. For such purpose proceedings shall be deemed to be in existence upon the adoption of the resolution by the city council ordering the formation of the proposed maintenance benefit area or the change in geographical boundary area. (Ord. 2000-017 § 4(a)(13); prior code § 55.08.801)