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10/11/2010 Attachment 1.A meet the anticipated demands of all projected growth under the New General Plan, the City will also implement FEIR Mitigation Measure 4.11 -1, which will preclude the City from approving any new development proposal under the New General Plan unless it is demonstrated, as required by Water Code Section 10910 and /or Government Code Section 66473.7, that there will be sufficient available water supplies to meet the demands of the new development proposal and all other existing and planned uses served by the City's water system, over the 20- year planning period for the New General Plan. Nonetheless, even with the implementation of the water policies and programs described above, and the implementation of FEIR Mitigation Measure 4.11 -1, the City considers this potential impact to remain significant. (ii) Overriding Considerations. The environmental, social, economic and other benefits of the New General Plan override any remaining significant adverse impacts of the New General Plan relating to future availability of water supplies, as set forth in the Statement of Overriding Considerations below. 4.16 Greenhouse Gas Emissions Impact 4.16 -2: The New General Plan would allow for new development to occur in areas that may be subjected to tidal inundation if sea level rises; this could place additional people and structures at elevated risk of exposure to flood hazards associated with long -term sea level rise. a) Potential Impact. The impact identified above is described and discussed on page 4.16-37 of the DEIR. b) Findings. Based on the FEIR and the entire record before the City, the City Council finds that: (i) Mitigation Measures. There are no feasible mitigation measures available to address this impact. The City of Redwood City is located on the shore of the San Francisco Bay. As a result, certain portions of the City are subject to an elevated risk of flooding from potential rising sea level that may be associated with global warming. As part of the City's participation in the National Flood Insurance Program, all new development within existing designated flood hazard areas, which areas are most at risk of flooding due to rising sea level, must meet specific flood damage avoidance requirements. (See DEIR at p. 4.8 -24) These requirements include, but are not limited to, raising the elevation of habitable space above anticipated flood heights, creating `freely communicating' structures which allow flood waters to pass through lower levels of buildings, and ensuring that site designs do not result in a reduction of floodplain areas which could increase flood conditions downstream. In addition, the proposed New General Plan contains many policies and programs intended to prevent flooding and flood hazards throughout the City, including flood risks and hazards resulting from rising sea level. (See New General Plan AM /RES0/RES0.2055 /ATTACHMENT1.A 27 #15059 10/13/10 MUFF # 601