It shall be the duty of the county assessor on the first day of July of each year to ascertain what portion of the real and personal property of the authority, if any, is devoted to use as an industrial park and to appraise such property as if taxable. The assessor shall likewise determine the tax which would be levied upon such property if it were taxable. On the first day of August of the year following such determination and the first day of February thereafter, the authority shall pay unto the sheriff of the county a sum of money equal to that which would have been due if the property were taxable, which sums shall be distributed by the sheriff as if such sums were tax receipts.