An earthen retaining wall of adequate size for the terrain involved will be constructed on the low side of the well site in the event the well site is located on sloping or unlevel ground. The top of the retaining wall shall be at least level with the top of the base of the Christmas tree or other wellhead connections on any completed well, or at least level with the ground at the point where surface casing is set in the well when drilling.
An earthen diversion wall of adequate size for the terrain involved shall be constructed on the high side of the well site in the event the well site is located on sloping or unlevel ground. The diversion wall will be of sufficient height and strength so as to divert runoff waters around the well site. (Ord. 528 §1, 1982)