(a) After receiving a copy of the establishment petition, the director must notify the board that an establishment petition has been received and prepare a preliminary watershed map of and a preliminary report about the watershed district.
(b) The preliminary watershed map must show the natural watershed boundaries within the proposed watershed district.
(c) The preliminary report must be based on the establishment petition and other available data and must recommend whether the watershed district should be established.
(d) The director must submit the preliminary report and the preliminary watershed map to the board within 30 days after the date the establishment petition was received by the director, unless the time is extended by the board.