A. The county treasurer shall collect the assessment due the district at the same time and in the same manner in which he collects the state and county ad valorem tax. The county treasurer shall retain a fee for collections of the assessment equal to four percent of the assessment collected or the actual cost, whichever is less.

B. Such assessments shall be subject to the same due and delinquency date, discounts, penalties and interest as are applied to the collection of ad valorem taxes.