19.16.070 Mud Slide (i.e., Mud Flow) - Prone Areas
   1.   The City Engineer shall review permits for proposed construction or other development to determine if it is proposed within a mud slide area.
   2.   Permits shall be reviewed to determine that the proposed development is reasonably safe from mud slide hazards. Factors to be considered in making this determination shall include but are not limited to:
      A.   The type and quality of soils;
      B.   Evidence of ground water or surface water problems;
      C.   The depth and quality of any fill;
      D.   The overall slope of the site; and
      E.   The weight that any proposed development will impose on the slope.
   3.   Within areas which have mud slide hazards, the following requirements shall apply:
      A.   A site investigation and further review shall be made by persons qualified in geology and soils engineering;
      B.   The proposed grading, excavation, new construction and substantial improvements shall not aggravate the existing hazard by creating either on- site or off-site disturbances; and
      C.   The proposed grading, excavations, new construction and substantial improvements shall not aggravate the existing hazard by creating either on-site or off-site disturbances; and
      D.   Drainage, planting, watering, and maintenance shall not endanger slope stability.
   4.   Within Zone M on the Flood Insurance Rate Map, excavation, grading and drainage shall be constructed in compliance with Chapter 70 of the Uniform Building Code as modified by Municipal Code Sections 15.04.120 through 15.04.220. The following information shall be provided:
      A.   The location of foundation and utility systems of new construction and substantial improvements;
      B.   The location, drainage, and maintenance of all excavations, cuts and fills, and planted slopes;
      C.   Protective measures including but not limited to retaining walls, fills, subdrains, diverter terraces, benchings, etc.; and
      D.   Engineering drawings and specifications to be submitted for all corrective measures, accompanied by supporting soils engineering and geology reports.