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Water supply may consist of reservoirs, pressure tanks, elevated tanks, water mains, or other fixed system capable of supplying the required fire flow, subject to the approval of the fire marshal. The precise location, number and type of fire hydrants connected to a water supply to be provided in accordance with this subsection shall be subject to the approval of the fire marshal. All hydrants shall be accessible to the fire department apparatus by roadways meeting the requirements of Section 902. No use of an existing building, or any portion thereof, for either a place of assemblage or a Group H occupancy, as defined in subsections 1003.2.3 and 1003.2.6, shall be initiated or expanded unless the building as a whole will comply with the requirements of this subsection 903.2 such as would apply to the new construction of such building for the same uses. For purposes of this section, an existing building or structure shall be deemed to have a value equal to the current cost of construction of a building or structure of the same size and type of construction. In determining such value, the fire marshal shall be guided by the most recent building valuation data published by the International Conference of Building Officials. In determining the fire flow requirements for any building, structure, or fire area, the fire marshal shall proceed in accordance with the standards set forth in that certain "Santa Aha Fire Department Guide for Determination of Fire Flows," of which not less than one (1) copy is on file in the office of the clerk of the council of the City of Santa Ana. (b) Subsection 903.3 of the Uniform Fire Code is deleted. SECTION 75: The City Council of the City of Santa Ana hereby finds, determines and declares that adoption of Section 14-29 amending California Fire Code section 904 is necessary due to climatic and geographic conditions of high winds and Iow humidity. This combination of events creates an environment that is conducive to rapidly spreading fire. Control of such fire requires rapid response. Obstacles generated by a strong wind, such as fallen trees, street lights and utility poles, and the requirement to climb 75 feet vertically up flights of stairs will greatly impact the response time to reach an incident scene. Also the City is located in the middle of the seismically active area identified as Seismic Zone 4. The viability of the public water system would be questionable after a large earthquake leaving tall buildings vulnerable to uncontrolled fires and the inability to pump sufficient quantities of water to upper floors. SECTION 76: That section 14-29 of the Santa Ana Municipal Code is hereby amended such that it reads as follows (new language in bold, deleted language in strikeout for tracking purposes only): Sec. 14-29. Building height regulation (Section 904). Section 904 is added to the Uniform Fire Code, to read as follows: Ordinance No. NS-2522 Page 41 of 47