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(2) All subdivision proposals shall have public utilities and facilities such as sewer, gas, electrical and water systems located and constructed to minimize flood damage. (3) All subdivision proposals shall have adequate drainage provided to reduce exposure to flood hazards. (4) Base flood elevation data shall be provided for subdivision proposals and other proposed development which is greater than the lesser of fifty lots or five acres. Section 10. PUBLIC FACILITIES REQUIREMENTS. (1) All new and replacement water supply systems shall be designed to minimize or eliminate infiltration of flood waters into the system. (2) (a) New and replacement sanitary sewage systems shall be designed to minimize sir eliminate infiltration of flood waters into the systems and discharges from the systems into the flood waters. (b) On-site waste disposal systems shall be located to avoid impairment to them or contamination from them during flooding. Section 11. MOBILE HOME STRUCTURES. (1) (a) No mobile home shall be placed in a floodway or Coastal High.Hazard Area, except in an existing mobile home park or existing mobile home subdivision. (b) All mobile homes in Flood Hazard Areas shall be anchored to resist flotation, collapse, or lateral move- ment by providing over -the -top and frame ties to ground anchors. Specific requirements shall be that: (i) over -the -top ties be provided at each end of the mobile home, with one additional tie per side at an intermediate location on mobile homes of less than fifty feet and one additional tie per side for mobile homes of fifty feet or more; (ii) frame ties be provided at each corner of the home with four additional ties per side at intermediate points for mobile homes less than fifty feet long and one additional tie for mobile homes of fifty feet or longer; (iii) all components of the anchoring system be capable of carrying a force of 4,800 pounds; and, (iv) any additions to the mobile home be similarly anchored. (2) For new mobile home parks and subdivision; for expansions to existing mobile home parks and subdivisions; for existing mobile home parks and subdivisions where the repair, reconstruction or improvement of the streets, utilities, and pads equals or exceeds fifty per cent of value of the streets, utilities and pads before the repair, recon- struction or improvement has commenced; and, for mobile homes not placed in a mobile home park or subdivision require: (a) stands or lots are elevated on compacted fill or on pilings so that the lowest floor of the mobile home will be at or above the base flood level; M,0