The owners of property in territory that may be served by a shared facility may file a written petition with the Sanitary Commission that requests the Sanitary Commission: To build a shared facility; and To designate a shared facility area. The petition shall include: Plans for the proposed shared facility that will enable the Sanitary Commission to determine the cost and feasibility of the proposed shared facility; and A map of the proposed shared facility area. The petitioners shall provide, at their own expense, the map and plans required by this section.