67.729.  Sales tax for storm water control and public works may be imposed, how — collection and distribution of revenues — abolition of tax, procedure. — 1.  Any county except any first class county having a charter form of government and having a population of nine hundred thousand or more may, in the same manner and by the same procedure and subject to the same penalties as set out in sections 67.700 to 67.727, impose a sales tax of not more than one-tenth of one percent for the purpose of funding storm water control and public works projects other than stadiums or other sports facilities.  This sales tax shall be in addition to any other sales tax authorized by law.

  2.  Notwithstanding the provisions of section 67.712 as to the disposition of any other sales tax imposed under the provisions of sections 67.700 to 67.727, all sales taxes collected by the director of revenue from the tax authorized by this section on behalf of any county, less one percent for cost of collection, which shall be deposited in the state's general revenue fund after payment of premiums for surety bonds as provided in section 32.087, shall be deposited with the state treasurer in a special trust fund, which is hereby created, to be known as the "County Storm Water and Public Works Sales Tax Trust Fund".  The moneys in the county storm water and public works sales tax trust fund shall not be deemed to be state funds and shall not be commingled with any funds of the state.  The director of revenue shall keep accurate records of the amount of money in the trust fund which was collected in each county imposing a sales tax under this section and the records shall be open to the inspection of officers of the county and the public.  Not later than the tenth day of each month the director of revenue shall distribute all moneys deposited in the county storm water and public works sales tax trust fund during the preceding month to the county which levied the tax, and the municipalities which are located wholly or partially within such county as follows:

  (1)  The county which levied the sales tax shall receive a percentage of the distributable revenue equal to the percentage ratio that the population of the unincorporated areas of the county bears to the total population of the county;

  (2)  Each municipality located wholly within the county which levied the tax shall receive a percentage of the distributable revenue equal to the percentage ratio that the population of such municipality bears to the total population of the county; and

  (3)  Each municipality located partially within the county which levied the tax shall receive a percentage of the distributable revenue equal to the percentage ratio that the population of that part of the municipality located within the county bears to the total population of the county.

  3.  The director of revenue may authorize the state treasurer to make refunds from the amounts in the county storm water and public works sales tax trust fund and credited to any county for erroneous payments and overpayments made, and may redeem dishonored checks and drafts deposited to the credit of such counties.  If any county abolishes the tax, the county shall notify the director of revenue of the action at least ninety days prior to the effective date of the repeal and the director of revenue may order retention in the county storm water and public works sales tax trust fund, for a period of one year, of two percent of the amount collected after receipt of such notice to cover possible refunds or overpayment of the tax and to redeem dishonored checks and drafts deposited to the credit of such accounts.  After one year has elapsed after the effective date of abolition of the tax in such county, the director of revenue shall authorize the state treasurer to remit the balance in the account to the county and close the account of that county.  The director of revenue shall notify each county of each instance of any amount refunded or any check redeemed from receipts due the county.