(a) The board of directors shall keep a complete record of all financial transactions relating to the carrying out of the approved plan for works of improvement in a project area.
(b)
(1) On or before March 1 of each year, the board shall file with the clerk of the court a sworn statement covering the preceding year ending December 31 of the financial condition of the district with respect to the approved plan in a project area.
(2) In project areas with revenues, from whatever source derived, in excess of five thousand dollars ($5,000) per year, the pertinent books, records, and last annual report of the district with respect to the approved plan shall be examined at least once a year by a certified public accountant.
(3) The accountant shall file a report of the examination with the clerk of the court within thirty (30) days after completing such examination.
(4) The accountant shall recommend the form and method for keeping books and records and for making the reports of the district with respect to the approved plan.
(5) The expense of the examination shall be paid as a part of the expenses of carrying out the approved plan.