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Noise <br /> External noise sources that could affect the subject site include traffic noise from Interstate 580 <br /> to the north, Interstate 680 to the east, and adjacent City streets, and noise from adjacent land <br /> uses (which consist mainly of office and commercial uses). The subject site is located within <br /> the future (2025) 70 dBA Ldn noise contour along 1-580 and 1-680 as indicated in the 2005-2025 <br /> Pleasanton General Plan. This noise level is considered to be "Normally Acceptable" for <br /> "Office Buildings, Business Commercial, and Professional" land uses by the Pleasanton <br /> General Plan. Interior noise levels for office buildings need to generally maintain a 45 dBA Leg <br /> interior level per the Pleasanton General Plan. It is anticipated normal construction methods <br /> and requirements would allow the proposed office construction to comply with this standard. A <br /> condition of approval requires information be submitted at the building permit plan check stage <br /> sufficient to determine this standard would be met. <br /> Noise Impacts on Adjacent Properties <br /> The development of office uses and new parking on the subject site would generate added <br /> urban noise, such as traffic, loading and unloading of delivery trucks, etc. However, given the <br /> existing noise levels produced by nearby street and freeway traffic and the existing commercial <br /> and office uses in the area, noise levels would not change substantially from that currently <br /> experienced in the area. Construction equipment would be required to meet DMV noise <br /> standards and be equipped with muffling devices. Once constructed, the operation of the <br /> proposed project would be required to meet the City's noise ordinance, which stipulates the <br /> business cannot produce a noise level more than 70 dBA at any point outside of the property <br /> plane. The proposed project, based on its proposed profile of use (office, R&D, and laboratory <br /> space) is not expected to generate any unusual sources of noise, and 10x Genomics existing <br /> operations have functioned without complaints or issues concerning noise. <br /> Architecture and Design <br /> Building 1 has significant detailing and articulation, and the form/shape of the building is <br /> visually interesting. The materials and colors are attractive and will blend in well with the <br /> surrounding developments based on similar finish schemes found on other existing <br /> development in the vicinity. The height of Building 1 (53-feet tall to the top of the parapet (65 <br /> feet tall with rooftop equipment screen)) (and future proposed Buildings 2/3 (67-feet tall to the <br /> top of the parapet (82 feet tall with rooftop equipment screen)) and the proposed parking <br /> structure) would be less than or commensurate with other existing office buildings in <br /> Pleasanton. Building 1 would be less than the maximum height of buildings permitted at <br /> Stoneridge Mall (up to 65 feet); and Buildings 2/3 only incrementally taller. Thus, staff believes <br /> its height would be compatible with the surrounding commercial buildings. <br /> Table 3 lists the height and number of stories of the proposed Building 1, future proposed <br /> Buildings 2/3, and some of the taller existing surrounding buildings. Overall, staff supports the <br /> architecture and design of Building 1 . <br /> PUD-139 and P20-0973, 10x Genomics, Inc. Planning Commission <br /> 27 of 32 <br />mmute hours. <br /> PUD-139 and P20-0973, 10x Genomics, Inc. Planning Commission <br /> 24 of 32 <br /> Vehicular access to the subject site would be provided from three existing driveways (one on <br /> Stoneridge Mall Road (Phases 2/3), one on Stoneridge Mall Road (ring road) (Phase I), and <br /> one on Springdale Avenue (Phase I and primary)). <br /> PUD-139 and P20-0973, 10x Genomics, Inc. Planning Commission <br /> 19 of 32 <br /><br />