Sec. 9. A complaint for condemnation, other than by the commission, under this chapter may not be filed in a court unless the taker has received approval from both the department and the department of environmental management. These agencies shall give approval only if the agencies find the following:
(1) That based on sound engineering principles, the site is satisfactory for water supply storage.
(2) That there is a probable future need for water supply storage that can be served from the reservoir site.