The purpose of the proposed rule revision is to clarify the requirement that a single permit may be obtained for the construction of a multi-zone monitor well. This type of well, as it is usually constructed, consists of multiple observation tubes for monitoring different depths, all located within a single larger diameter well casing. A separate well completion report is required for each of the monitor tubes. The completion reports identify the zones being monitored in the well. The proposed rule language will help clarify current existing practices.