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major faults of Greenville, Calaveras, Hayward <br /> and the most well known San Andreas Fault. <br /> Also of note are the smaller faults of <br /> Livermore, Tesla and Las Positas. The major <br /> area faults have shown some activity within <br /> the past few years. The probability of <br /> additional seismic activity in the <br /> Livermore-Amador Valley has been indicated by <br /> seismologists. The activity to expect would <br /> most likely range between 5 and 7 on the <br /> Richter Scale. Because of this geological <br /> threat the potential for extensive fire damage <br /> and loss of life is shown in the findings <br /> above. <br /> <br />3. The topographic conditions within the specified <br /> areas of the City of Pleasanton are such that: <br /> <br /> a. Extensive fire damage due to multiple fires <br /> involving untreated wood shake or shingle <br /> building exteriors ignited because of exposure <br /> to fires which spread beyond the building of <br /> origin. <br /> <br /> b. Extensive fire damage, potential loss of life <br /> and injury to firefighters due to the limited <br /> effectiveness and capabilities of the fire <br /> department in controlling fires which have <br /> spread beyond their incipient stage and into <br /> flash over due to reduced or delayed response <br /> of fire companies because of distance, traffic <br /> congestion or other obstructions on response <br /> routes. <br /> <br /> c. Extensive fire damage and potential for loss <br /> of life due to the inability of the fire <br /> department to gain rapid access to fires due <br /> to terrain, slopes, landscaping, size of <br /> building, and relationship to other buildings <br /> in time to prevent flash over. <br /> <br /> d. The City of Pleasanton is primarily located <br /> within a valley with a mountain range to the <br /> west (some of which is in the City). This <br /> range reaches an elevation of approximately <br /> 1000 feet. To the east and southeast there is <br /> "hilly" terrain which reaches 700 feet of <br /> elevation and is within the City. In <br /> addition, there are flatland areas bordering <br /> the City which are agricultural in nature and <br /> highly flammable grain and hay crops abound. <br /> All of these areas have been determined, by <br /> the California Department of Forestry to <br /> present a fire hazard severity of moderate to <br /> extreme. <br /> <br /> - 3 - <br /> <br /> <br />