18.28.060   REQUIRED PROCEDURES AND DEVELOPMENT STANDARDS.
   .010   Procedures.
      .0101   The Public Works Department shall review projects proposed in areas subject to the (FP) Overlay Zone regulations, to determine that all necessary permits and certificates have been obtained to assure compliance with the requirements of this chapter and Chapter 17.28 (Flood Hazard Reduction).
      .0102   All development, subdivision, structure and substantial improvement proposals shall include submittal of detailed drainage studies and plans, indicating how site grading, in conjunction with any necessary drainage conveyance systems, including applicable swales, watercourses, channels, street flows, catch basins, storm drains and floodwater retarding, will provide building pads and lowest floor elevations that are safe from flood flows, which may be expected from floods up to and including the design flood. The grading plan shall include identified, on-site, finished grade elevations and the design flood elevations, both related to mean sea level. Structural plans submitted for building permits shall show the height of the first floor of such structures as related to mean sea level. Said plans and floor height information shall be maintained on file by the Planning Department for flood insurance reference purposes.
      .0103   The Director of the Public Works Department or the Director of the Planning Department, as appropriate, shall notify adjacent communities prior to approval of any project ,which would alter or relocate a watercourse having an effect on the flood hazard areas shown on the Flood Insurance Rate Maps, and submit evidence of such notification to the appropriate federal agency. Any approval action for such project shall require that maintenance is provided within the altered or relocated portion of said watercourse so that the flood-carrying capacity of the watercourse is not diminished.
   .020   Utilities. Prior to clearance for issuance of any building or grading permit, the Building Division of the Planning Department shall verify that:
      .0201   All new and replacement water supply systems are designed to minimize or eliminate infiltration of floodwaters into the system.
      .0202   New and replacement sanitary sewage systems are designed to minimize or eliminate infiltration of floodwaters.
      .0203   On-site waste disposal systems are located to avoid impairment to them or contamination from them during flooding.
      .0204   Utilities are designed to resist destruction from flood scour, and the hydrostatic and hydrodynamic loads and effects of buoyancy. (Ord. 5920 § 1 (part); June 8, 2004.)