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L.9 <br /> 0 0 <br /> oCollege Park at Mountain House Specific Plan III <br /> Mitigation Monitoring and Reporting Program <br /> Implementation <br /> Implementation Verification <br /> Mitigation Measure Timing/Schedule <br /> Responsibility P y Action Dote Completed <br /> o' <br /> c park uses, 70 dBA CNEL for college uses, <br /> M <br /> and 75 dBA CNEL for limited industrial <br /> uses),a noise barrier shall be constructed <br /> �• along the north side of I-205 by the College <br /> -o. Park:d'evelopers to protect the affected <br /> 0 <br /> receptor(s). The required location, height, <br /> and,character of the noise barrier shall be <br /> determined-bya noise consultant hired by <br /> the County. This mitigation shall be funded <br /> through-fair-share payments by the College <br /> Park developers. <br /> Sound barriers could be constructed to <br /> protect the proposed landusesfrom future <br /> freeway noise levels. For instance, a sound <br /> wall 12.feet high located approximately 50 <br /> feet from the edge of I-205 would reduce <br /> freeway noise exposure at the south property <br /> line of the proposed Delta College site to <br /> 69,8 dBA CNEL, which isbelowthe <br /> significance threshold of 70 dBA Ld,/CNEL <br /> o for this land use type. This level would also <br /> o' be Jess than the significance threshold of 75 <br /> dBA;La;fCNEL for the proposed <br /> a industriaUbusiness park.A 12-foot sound <br /> wall would also reduce freeway noise <br /> exposure at the nearest proposed residences <br /> to 61.2 dBA L,,/CNEL, not accounting for <br /> r^ <br /> additional attenuation provided by the <br /> CD <br /> 3 intervening presence of the <br /> industrial/business park, <br />