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88 <br /> <br />in regards to fire after an earthquake is the lack of water supply due to water main <br />breakage. San Leandro is diligent about its partnership with EBMUD and monitoring <br />improvements made in San Leandro to improve the chances of adequate water supply <br />after a major earthquake. The building and fire codes have been strengthened over <br />time to include additional safety features, such as flexible utility connections, leak <br />detection systems, more advanced sprinkler systems, more stringent ventilation <br />requirements and spill notification systems. <br /> <br />5.4 FLOODING <br />Potential flooding hazards in San Leandro are associated with overbank flooding of creeks <br />and drainage canals, tidal flooding from San Francisco Bay, ponding and sheet flow runoff and <br />rising sea level. Although isolated flooding has occurred in San Leandro, there are no <br />repetitive or severe repetitive loss properties in the City of San Leandro. San Leandro is a <br />proud participant of NFIP’s CRS program since October of 2006, and has just successfully <br />completed a CAV conducted by ISO, which resulted in retaining our class 8 rating. San <br />Leandro continues to develop strategies and programs to better inform the citizens of our <br />flood program benefits. We are also training additional Staff members to become CFM’s to <br />better comply with FEMA requirements. Our Staff is trained to verify a property’s flood zone <br />designation prior to permit issuance, and if the property is within 500’ of a flood boundary, <br />they must confirm the property’s flood designation with the Floodplain Administrator prior <br />to permit issuance. The City enforces FEMA and NFIP regulations through the San Leandro <br />Municipal Code, Title 7, §7-9, Floodplain Management. Any unpermitted work in an SFHA is <br />immediately “red tagged” and enforcement proceedings are administered as per our <br />Enforcement and Abatement procedures contained in §7-5, articles 11, 12, 13 and 14 of the <br />San Leandro Municipal Code. <br />5.4.1 OVERBANK FLOODING <br />PAST OCCURANCE AND POTENTIAL FOR OCCURANCE <br />At one time, flooding along creeks and streams was relatively common in San Leandro. <br />These hazards were greatly reduced during the 1960s and 1970s when the Alameda <br />County Flood Control and Water Conservation District (ACFCWCD) channelized the lower <br />portions of San Leandro Creek and constructed flood control ditches in the southern part <br />of the City. <br />Although the flood control channels were effective, they did not eliminate flood hazards <br />entirely. During the last 40 years, urbanization in the watersheds has increased <br />impervious surface area, which has resulted in faster rates of runoff and higher volumes <br />of storm water in the channels. Recent maps published by the Federal Emergency <br />Management Agency (FEMA) indicate that a 100-year storm (e.g., a storm that has a one <br />percent chance of occurring in any given year) could cause shallow flooding in parts of <br />southwest San Leandro. <br />127