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12/06/2010 control in large buildings would be inoperative, thereby resulting in loss of life and /or major losses in such buildings. Additional potential situations inherent in such an occurrence include loss of city water resources; Hetch — Hetchy Bay Division Pipelines No. 1 and 2, and Hetch - Hetchy Bay Division Pipelines No. 3 and 4 would be expected to suffer damage 2 , along with inundated areas caused by the failure of earthen dams such as Lower Emerald Lake (Latitude 37 28.0' N; Longitude 122 23.2'W) and Bear Gulch (Latitude 37 26.0' N; Longitude 122 13.6' W) underground water main breaks due to soil movement; cylindrical water storage tank failures due to "elephant's foot" buckling, weakening from corrosion, or sloshing of contents; broken natural gas mains causing structure and other fires; leakage of hazardous materials; the need for rescue from collapsed structures; and the rendering of medical aid to large numbers of people. The protection of human life and the preservation of property in the event of such occurrence support the imposition of fire - protection and life- safety requirements greater than those set forth in the 2010 Edition of the California Fire Code. Finding 3: The seasonal climatic conditions during the late summer and fall create numerous serious difficulties regarding the control of and protection against fires in the City of Redwood City. Although the city has experienced an annual mean rainfall of 20.21 inches since 1948, one can anticipate no measurable precipitation at all during the summer months. The dry period average maximum temperature is 82.7 degrees Fahrenheit with an extreme maximum of 110 degrees Fahrenheit. These temperatures are often accompanied by light to gusty prevailing westerly to northwesterly winds. These dry winds, mixed with the natural vegetation which is predominant throughout the area, creates a hazardous fuel condition which has caused extensive grass and brushland fires. With more and more development encroaching into these wooded and grass covered areas, wind driven fires could have severe consequences as shown on many occasions in other areas of the state. Recorded weather patterns indicate that the average annual rainfall cannot be relied upon. Water shortages and water rationing may result as was experienced during recent drought years. While some code requirements, such as fire - resistive roof classification, have a direct bearing on building survival in a wildland fire situation, others such 2 San Francisco Public Utilities Commission: Its Slow Pace for Assessing Weaknesses in Its Water Delivery System and for Completing Capital Projects Increases the Risk of Service Disruptions and Water Shortages California State Auditor / Bureau of State Audits, Report Number 99124. 3 Generalized from maps dam owners are required to prepare and file with the State Office of Emergency Services and available through the Association of Bay Area Governments (ABAG). 4 Source: National Weather Service, Western Regional Climate Center, Desert Research Institute, 2215 Raggio Parkway, Reno, Nevada 89512, (775) 674 -7010. ATTY /RESO /RESO.2066 6 #15070 111510 MUFF # 305