The governing body of any city or county is hereby authorized to establish or participate in the mining or manufacturing of paving materials for the use of such city or county. Establishment of or participation in any such mining or manufacturing operation shall not occur unless:

(a) Prior to the establishment of or participation in any such mining or manufacturing operation, the governing body shall hold a public hearing to consider the merits of the proposed mining or manufacturing operation;

(b) notice of such public hearing has been published in both the Kansas Register and a newspaper having general circulation in the city or county in which such proposed mining or manufacturing operation is to be established or participated in not less than 20 days prior to the date of such public hearing; and

(c) the governing body shall notify any city or county resident or taxpayer, as determined by such city or county’s vendor list, who customarily provides construction materials, of the date, time and location of such public hearing. Such notification shall be made by mail not less than 20 days prior to the date of such hearing.

The provisions of this section shall not apply to any existing operation of mining or manufacturing paving materials which was established or participated in by the governing body of any city or county prior to the effective date of this act.