The owner of any property on which an excavation or fill has been made pursuant to a permit granted under this chapter, or any other person or agent in control of such property, shall maintain in good condition and repair all retaining walls, cribbing, drainage structures, planted slopes and other protective devices shown in the approved plans or drawings submitted with the application for the grading permit. (Ord. 3411 § 2 (part); April 1, 1975.)