(1) Two or more contiguous counties may, by executing an agreement pursuant to the provisions of Title 11, Chapter 13, Interlocal Cooperation Act, unite to create and maintain a local health department that does not combine the substance abuse authority and the mental health authority with the local health department.
(2) Any municipalities within counties comprising a multicounty local health department under Subsection (1) shall be served by the multicounty local health department.