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Resolution 2022-XXX <br />Page 4 of 7 <br /> <br />and over 500 responses, the department was taxed to its fullest <br />capabilities. The Marina fire was difficult to contain because mains <br />supplying water to the district burst during the earthquake. This situation <br />creates the need for both additional fire protection and automatic on-site <br />fire protection for building occupants. State Department of Conservation <br />noted in their 1988 report (Planning Scenario on a Major Earthquake on <br />the Newport-Inglewood Fault Zone, page 59): “unfortunately, barely <br />meeting the minimum earthquake standards of building codes places a <br />building on the verge of being legally unsafe.” <br /> <br />B. Road circulation features located throughout the County also make <br />amendments reasonably necessary. Located through the County are <br />major roadways, highways and flood control channels that create barriers <br />and slow response times. Hills, slopes, street and storm drain design <br />accompanied with occasional heavy rainfall, cause roadway flooding and <br />landslides and at times may make an emergency access route <br />impassable. There are areas in Orange County that naturally have <br />extended emergency response times exceeding the 5 minute goal. <br /> <br />C. Soils throughout the County possess corrosive properties that reduce the <br />expected usable life of water services when metallic pipes in contact with <br />soils are utilized. <br /> <br /> Due to the topographical conditions of sprawling development separated by <br />waterways and narrow and congested streets and the expected infrastructure <br />damage inherent in seismic zone described above, it is prudent to rely on <br />automatic fire sprinkler systems to mitigate extended fire department response <br />time and keep fires manageable with reduced fire flow (water) requirements for a <br />given structure. Additional fire protection is also justified to match the current <br />resources of firefighting equipment and personnel within the Orange County Fire <br />Authority. <br /> <br />Section 4. The following specific amendments to the sections of the 2022 Edition <br />of the California Building Code, as recommended by the Planning and Building Agency <br />and the Orange County Fire Authority, are reasonably necessary based upon the <br />corresponding findings in Section 3 of this Resolution: <br /> <br />BUILDING <br />CODE SECTION <br />TITLE (Clarification) FINDINGS I,II,III <br />105.3.2 Time Limitation of Application Admin <br />202 General definitions (Spark Arrester) Admin <br />903.2 Where required (Sprinklers) II & III-B <br />903.2.8 Group R (Sprinklers) II-B & III-B <br />903.3.5.3 Hydraulically calculated systems I & II <br />506.5.3 (CEBC) Seismic Loads (California Existing Building <br />Code) <br />II & III