Preliminary report on proposed improvement; alternate proposals; review by engineer

(A) Upon acceptance of a petition requesting the construction of an improvement, the board of supervisors of a soil and water conservation district shall begin to prepare a preliminary report regarding the proposed improvement. The board shall present the completed preliminary report at the hearing that is held on the proposed improvement. (B) The board shall ensure that the preliminary report includes all of the following: (1) A preliminary estimate of the cost of construction for the proposed improvement; (2) Comments on the feasibility of the proposed improvement; (3) A statement of the board's opinion as to whether the benefits from the proposed improvement are likely to exceed the estimated cost; (4) A list of all factors identified by the board, both favorable and unfavorable to the proposed improvement, so that the petitioners may be informed concerning what is involved with the construction of the proposed improvement. (C) In addition to preparing a preliminary report on the improvement as petitioned, the board may submit alternate proposals to accomplish the intent of the petition. (D) The preliminary report and all alternate proposals shall be reviewed and receive concurrence from an engineer who is employed by the department of agriculture or by the natural resources conservation service in the United States department of agriculture and who is responsible for providing technical assistance to the district or from any other registered professional engineer selected by the board of supervisors.