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<br />21 <br />San Leandro is at a medium risk for landslides <br />As defined by the United States Geological Survey (USGS),42 most of the city of San Leandro is in a zone <br />that experiences “very few landslides.” However, Bay-O-Vista, a neighborhood located east of I-580, has <br />experienced recent landslides, and Lake Chabot Road and the area near Kindred Hospital are also <br />vulnerable to instability. While these assets are located in a USGS zone designated as experiencing “few <br />landslides” the consequences of a potential landslide affecting the hospital and surrounding <br />neighborhoods makes this area a concern for hazard mitigation and response as climate conditions and <br />flood risks change. <br />Wildfires <br />Climate change may increase wildfire risk <br />Extreme temperatures and increased variability in rainfall will likely cause dry conditions in California, <br />exacerbating the risk of wildfire throughout the state. Large areas east of the I-580 freeway and <br />throughout the hills adjacent to San Leandro are at risk of high to very high hazard severity in the event <br />of a wildfire. This includes areas with increased exposure along the eastern edge of the city where San <br />Leandro borders Lake Chabot Regional Park, which is designated as a very high hazard severity zone. <br />While these zones do not affect the city’s key emergency response or transportation assets, a couple of <br />regional hospital facilities are exposed which may challenge the city’s contracted fire agency’s, the <br />Alameda County Fire Department, capacity to respond to wildfire impacts. <br />Wildfires may become more common or severe <br />According to the California Department of Forestry and Fire Protection (CAL FIRE) Fire Hazard Severity <br />Zone maps,43 San Leandro has moderate to very high wildfire severity zones in many areas of the city, <br />primarily east of the MacArthur Freeway, but with some high severity areas in the Oyster Bay Regional <br />Shoreline and the inland areas of the marshlands near the shoreline. Fire hazard severity is a metric of <br />the potential exposure of wildland and urban properties to wildfire based on vegetation, topography, <br />and dangerous fire characteristics. The extent of these zones will therefore depend on land use change, <br />but the occurrence of fire within these zones may increase due to climate change impacts such as more <br />frequent droughts. Figure 13 depicts the geographic distribution of fire hazard severity risk throughout <br />San Leandro. <br /> <br /> <br /> <br /> <br /> <br /> <br />42 Pike, R.J. (1997). San Francisco Bay Region Landslide Folio Part D. USGS. Accessed at: http://pubs.usgs.gov/of/1997/of97- <br />745/of97-745d.html <br />43 CalFIRE. Wildland Hazard and Building Codes: Fire Hazard Severity Zone Development. Accessed at: <br />http://www.fire.ca.gov/fire_prevention/fire_prevention_wildland_zones_development <br />65