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2450 Washington Avenue Apartments 18 October 2011 POTENTIALLY POTENTIALLY SIGNIFICANT LESS THAN NO ISSUES SIGNIFICANT UNLESS SIGNIFICANT IMPACT SOURCES ISSUES MITIGATION IMPACT INCORPORATED Noise (Continued) Mitigation Measure #24: To meet Building Code DNL 45 dB requirements, it will be necessary for some of the building facades to be sound rated, as indicated in Figure 2 of the September 24, 2008 Acoustical Study prepared by Charles M. Salter Associates, Inc. STC ratings for selected assemblies shall be based on laboratory testing performed in accordance with ASTM E -90 and comprise the entire window or door assembly, including the frame. If non- tested assemblies are to be used, an acoustical consultant must review the glazing and frame submittals, and the STC rating of the glass may need to be increased. A typical construction -grade 1 -inch insulated, dual -pane window achieves an STC rating of approximately 28 to 30. Implementation of Mitigation Measure #24 reduces potential noise impacts to a less than significant level. e -f) The proposed project is not located within the vicinity of a public airport or private airstrip. Oakland International Airport - is - located - approximately - 2. 1 The - project - site - is - slightly outside - the airport's general referral area and well outside the designated noise zone. a. Induce substantial population growth in an area either X 1, 2, 3, 4 directly (for example, by proposing new homes and businesses) or indirectly (for example, through extension of roads or other infrastructure ? b. Displace substantial number of existing housing, X 1, 2, 3, 4 necessitating the construction of replacement housing elsewhere.? C. Displace substantial numbers of people, necessitating X 1, 2, 3, 4 the construction of replacement housing elsewhere? EXPLANATION: a) The proposed project includes the development of a 66 -unit residential housing project, with 135 surface parking spaces. The State is required to allocate the region's share of the statewide housing need to local Councils of Governments (COG) based on Department of Finance population projections and regional population forecasts used in preparing regional transportation plans. In the San Francisco Bay Area, the Association of Bay Area Governments (ABAG) serves as the region's COG. Housing element law requires the COG, or ABAG, to develop a Regional Housing Need Plan (RHNP). The plan describes the region's allocation method and the actual allocation of housing need to the cities and counties within the region. This document serves as the Bay Area's Regional Housing Need Plan. The RHNP takes such factors as job . growth, water and sewer capacity, land availability, and transit into account as it assigns each city's housing assignment. According to state law, the regional housing needs plan is to promote the following objectives: 1. Increase the housing supply and the mix of housing types, tenure, and affordability in all cities and counties within the region in an equitable manner; 2. Facilitate infill development and socioeconomic equity, the protection of environmental and agricultural resources, and the encouragement of efficient development patterns; and 3. Improve intra - regional relationship between jobs and housing. ABAG breaks the RHNP allocation assignment down into four income categories to ensure that each city plans for all economic segments. San Leandro's assignment is 1,630 housing units for the time period 2007 to 2014. This project, while increasing the residential population of the city and causing some new growth, has the overarching benefit of helping the city meet its RHNP as required by state law through in -fill housing development, therefore, no mitigation is required. b -c) The proposed project would include development on a parcel that is currently developed with commercial office uses and parking and that has been previously graded and disturbed. No housing units are currently located on the site. The construction of replacement housing would not be necessary since no housing units or residents will be displaced with project implementation. 2450 Washington Avenue Apartments 18 October 2011