When the engineer’s report is filed, the district board shall examine it and may thereupon:
(a) Reject it and direct that a new report be prepared;
(b) Direct that changes be made in it; or
(c) If it complies with the provisions of this chapter and is satisfactory to the district board, it shall fix a time and place for hearing objections to the report and to doing all or any of the work referred to in the report.