3B Public Hearing 2009 0720 - Laserfiche WebLink

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Hydrology / Water Quality (Continued) Leandro has developed a Hazards Master Plan to coordinate efforts for mitigating emergency conditions. Regardless, the POTENTIALLY proofing and safety mitigation is implemented. Mitigation Measure #12: The applicant shall comply with the applicable City of San Leandro Engineering and Building standards as part of the Site Plan Review process to ensure that new construction is designed to minimize ISSUES POTENTIALLY SIGNIFICANT LESS THAN NO approximately 47 feet above mean sea level, not along an exterior coast, and over one mile inland from San Francisco East Bay, it would not be subject to tsunami inundation. Therefore, no impact would result, and no further analysis is SIGNIFICANT UNLESS SIGNIFICANT IMPACT SOURCES project sites are not subject to seiche risk. There would be no impact, and no further analysis is required. ISSUES MITIGATION IMPACT pollution control district may be reliedupon-to ;make-thefollowin -determinations. Would the pro'ect: a. Conflict with or obstruct implementation of the X INCORPORATED 3, 4, 9, 16 applicable air qualityplan? Hydrology / Water Quality (Continued) Leandro has developed a Hazards Master Plan to coordinate efforts for mitigating emergency conditions. Regardless, the proposed project would expose additional people to potential risk of dam failure inundation, unless sufficient flood proofing and safety mitigation is implemented. Mitigation Measure #12: The applicant shall comply with the applicable City of San Leandro Engineering and Building standards as part of the Site Plan Review process to ensure that new construction is designed to minimize the potential for damage from flooding. The properties are not identified as being located within a Federal Emergency Management Agency (FEMA) 100 -year floodplain. Therefore, there would be no impacts of or to the 100 -year floodplain. j) Tsunamis are large sea waves generated by submarine earthquakes or similar large-scale, short -duration phenomena, such as volcanic eruptions, that can cause considerable damage to low-lying coastal areas. Because the project is located approximately 47 feet above mean sea level, not along an exterior coast, and over one mile inland from San Francisco East Bay, it would not be subject to tsunami inundation. Therefore, no impact would result, and no further analysis is required. k) Seiches are waves caused by large-scale, short -duration oscillation of confined bodies of water (such as reservoirs and lakes) during earthquakes that may damage low-lying adjacent areas, although not as severely as a tsunami. The closest enclosed body of water that could result in earthquake -induced seiche is Lake Chabot, over 2.5 miles upstream of the project sites. Furthermore, there have never been any documented impacts from seicbes at Lake Chabot. Therefore, the project sites are not subject to seiche risk. There would be no impact, and no further analysis is required. There are no new impacts beyond what was analyzed in the Downtown San Leandro TOD Strategy FIR that was certified in 2007. 5. AIR QUALITY. Where available, the significance criteria established by the applicable air quality management or air pollution control district may be reliedupon-to ;make-thefollowin -determinations. Would the pro'ect: a. Conflict with or obstruct implementation of the X 3, 4, 9, 16 applicable air qualityplan? b, Violate any air quality standard or contribute X 3, 4, 9, 16 substantially to an existing or projected air quality violation? C. Result in a cumulatively considerable net X 3, 4, 9, 16 increase of any criteria pollutant for which the project region is non -attainment under an applicable federal or state ambient air quality standard (including releasing emissions which exceed quantitative thresholds for ozone precursors)? d. Expose sensitive receptors to substantial X 3, 4, 9, 16 pollutant concentrations? re. Create objectionable odors affecting a X 3, 4, 9, 16 substantial number of people? Cornerstone at San Leandro Crossings Initial Study 10 March 2009