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ORDINANCE NS-2183 041 PAGE 8 (2) Ail public utilities and facilities, such as sewer, gas, electrical, and water systems must be located and constructed to minimize or eliminate flood damage. (3) Adequate drainage must be provided to reduce exposure to flood hazards. Within the AH and AO zones, adequate drainage paths around structures oil slopes must be provided to guide floodwaters around and away from proposed structures. SECTION 17: That section 7-52 of the Santa Ana Municipal Code is hereby amended to read as follows: Bec. 7-52. Base flood elevation data. No tentative or final subdivision map which pertains to a proposed subdivision greater than fifty (50) lots or five (5) acres, whichever is less, in the A, AO, AH, or AE zones shall be approved unless base flood elevation data is included in or with the tentative map. SECTION 18: That section 7-53 of the Santa Ana Municipal Code is hereby amended to read as follows: sec. 7-53. Water supply systems. The executive director of public works shall assure that new and replacement water supply systems in the A, AO, AH, and AE zones are designed to minimize or eliminate infiltration of floodwaters into the systems. SECTION 19: That section 7-54 of the Santa Ana Municipal Code is hereby amended to read as follows: Bec. 7-54. Sewerage systems. The executive director of public works shall assure that new and replacement sanitary sewerage systems in the A, AO, AH,and AE zones are designed to minimize or eliminate infiltration of floodwaters into the systems and discharges from the systems into the floodwaters. SECTION 20: That section 7-55 of the Santa Ana Municipal Code is hereby amended to read as follows: Sec. 7-55. Waste disposal systems. The executive director of public works shall assure that 8