The board of county commissioners of any county which is not a part of a community mental health center is hereby authorized to contract with a community mental health center or community facilities for people with intellectual disability, or both, organized in accordance with the provisions of Kan. Stat. Ann. § 19-4001 et seq., and amendments thereto, for such mental health services or intellectual disability services, or both, for the residents of such county as may be mutually agreeable between the governing board of the center or community facilities for people with intellectual disability, or both, and the county commissioners, requesting the services for the residents thereof. Such an agreement may provide for out-patient and treatment services, rehabilitation services, consultative services and other services assented to by both parties. The consideration for such services shall not in any case exceed in amount the revenue that will be derived from the tax levy authorized by Kan. Stat. Ann. § 19-4011, and amendments thereto. Such agreement may be for a term of not exceeding five years, but may be renewed from time to time.