(2) The board may adopt an ordinance specifying the method of apportioning the construction costs to the property served and establishing a procedure for application for and payment of a refund.
(3) The right to require a refund under this section shall not continue for more than 10 years after the date of installation of the sewer main.
(4) The amount to be refunded shall be determined by the authority and such determination shall be final.
(5) The authority may refuse to provide sewer service until a refund is paid. [1983 c.435 §2]