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<br />2.7 Noise <br /> <br />Existing and Future Traffic Noise <br /> <br />Impact: on-site exposure to excessive traffic noise <br /> <br />The city finds that without mitigation, homes within the project <br />would be exposed to exterior noise levels above 60 dB and interior <br />noise levels above 45 dB, which exceeds the city's General Plan <br />standard for the uppermost allowable noise level in outdoor use <br />areas in new residential development, which is an Ldn of 60 dB and <br />within the interior of residences, which is an Ldn of 45 dB. This <br />is a significant impact (Draft EIR, pages 9-3 and 9-4). <br /> <br />proposed Mitigation Measures of the EIR <br /> <br />The EIR identified the following mitigation measures which would <br />substantially avoid this existing and future traffic noise impact. <br /> <br />9-1 Require noise barriers to minimize existing and future traffic <br />noise (Mitigation Measures 9-1a. and b., Draft EIR, pages 9-4 <br />and 9-5). Said mitigation measure was considered and adopted <br />with any pertinent changes in Condition 9-1 (A - B), Exhibit <br />"B" of the planning commission staff report dated May 27, <br />1992. <br /> <br />9-2 Require acoustical treatment of second floor homes (Draft EIR, <br />page 9-5). Said mitigation measure was considered and adopted <br />with any pertinent changes in condition 9-2, Exhibit "B" of <br />the planning commission staff report dated May 27, 1992. <br /> <br />Finding: Mitigation Measures 9-1 and 9-2 Feasible and Required <br /> <br />The city finds that it is feasible to mitigate this impact to a <br />less-than-significant level by requiring the applicant and <br />successors in interest to incorporate the specific provisions of <br />Mitigation 9-1 and 9-2 into the project design. The applicant and <br />successors in interest shall incorporate such existing and future <br />traffic noise impact reduction provisions into project design as a <br />"Condition of Approval" to the project. <br /> <br />construction Noise <br /> <br />Impact: construction noise annoyance <br /> <br />The City finds that without mitigation construction noise levels <br />would be high enough to interfere with outdoor and indoor <br />conversation at off-site homes near the eastern property line. <br />This is a significant short-term impact (Draft EIR, page 9-6). <br /> <br />22 <br /> <br />II <br /> <br />I <br />