Not less than 60 days before the effective date of any ordinance annexing land into the boundaries of any city:

(a) The city shall give written notice to any rural water district organized pursuant to Kan. Stat. Ann. § 82a-612 et seq., and amendments thereto, in whose territory the land or any portion thereof is located of the city’s intent to annex such land; and

(b) the notice shall contain the description of the land to be annexed and the city’s plan for the provision of water service to the land being annexed.