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MouNTAw HousE PROPOSED ALTAMONT HEIGHTSTENTATIVE MAP 4. ENVIRONMFNTAL CHECKLIST <br /> 4.11 NOISE <br /> Future development of the Mountain House Community, including the proposed project, will <br /> result in noise levels that could exceed standards established in the Development Title for the <br /> Mountain House Community. Noise would be generated by increased traffic along I-205 and <br /> local arterial and collector streets within the Specific Plan III area in which the project site is <br /> located. The impacts on sensitive receptors(e.g., residences) from these sources of noise <br /> were addressed in the SPIIIEIR, and mitigation measures were proposed that would snake the <br /> impacts less than significant when implemented. <br /> I <br /> Mitigation Measures <br /> No additional mitigation measures are required. <br /> b) Exposure of persons to or generation of excessive ground borne vibration or ground <br /> borne noise levels? <br /> There are no potential ground-borne vibration sources associated with the proposed project. <br /> Mitigation Measures <br /> No mitigation measures are required. <br /> c) A substantial permanent increase in ambient noise levels in the project vicinity above <br /> levels existing without the project? <br /> The site of the proposed project was formerly used for fanning. The proposed project is part <br /> of the overall development of the Mountain House Community. Therefore, noise levels <br /> following development would significantly increase over former conditions due to increased <br /> traffic and community activities. As stated in Item a) above, these impacts were addressed in <br /> the SPIIIEIR, and mitigation measures were proposed that would make the impacts less than <br /> significant. <br /> Mitigation Measures <br /> No additional mitigation measures are required. <br /> d) A substantial temporary or periodic increase in ambient noise levels in the project <br /> vicinity above levels existing without the project? <br /> Temporary increases in noise levels would be associated with construction of houses and. <br /> infrastructure in the various portions of the Mountain House Community. Whether <br /> temporary construction noise would impact the residents of the proposed project depends on <br /> the timing of development of the various neighborhoods. SPIIIEIR addresses construction <br /> noise impacts and proposes mitigation measures that would make the impacts less than <br /> significant. <br /> 4-57 <br />