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ORDINANCE NO. NS- 1586 PAGE THREE (2) In all other cases: the required hydrant or hydrants shall be located on the site of the premises to be protected, except that any required hydrant may be located on a public street if such location is within 150 feet of all portions of the exterior walls of the building to be protected. Where more than one fire hydrant is located on the site of the premises to be protected, or where a combination of hydrants located on such site and a public street are used to meet the distance requirements, the required fire flow in gallons per minute may be divided between such hydrants, provided: (1) that the combination of hydrants will deliver the required flow and (2) that no single hydrant has a flow of less than 1,500 gallons per minute with a residual pressure measured at the hydrant outlet of not less than 20 pounds per square inch during times of average daily consumption. Water supply may consist of reservoirs, pressure tanks, elevated tanks, water mains, or other fixed system capable of supplying their required fire flow, subject to the approval of the Chief. 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 Chief. All hydrants shall be accessible to the fire department apparatus by roadways meeting the requirements of section 13.208. No use of an existing building, or any portion thereof, for either a place of assemblage or a Group H occupancy, as defined in subsection (b) of this section, shall be initiated unless the building as a whole will comply with requirements of this subsection (c) such as would apply to the new construction of such building for the same uses. SECTION 4: That the Santa Ana Municipal Code, is hereby amended by adding a section, to be numbered 14- 7.4, which said section reads as follows: Sec. 14-7.4. Valuation of existing buildings. (Section 13.301(f)) Subsection (f) is added to section 13.301 of the Uniform Fire Code, to read as follows: (f) 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 Chief shall be guided by the most recent building valuation data published by the International Conference of Building Officials. SECTION 5: That the Santa Ana Municipal Code, is hereby amended by adding a section, to be numbered 14- 7.5, which said section reads as follows: Sec. 14-7.5. Determination of required fire flow. (Section 13.301(g)) Subsection (g) is added to section 13.301 of the Uniform Fire Code, to read as follows: