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Table 2-1 (continued) Summary of Impacts and Mitigation Measures (Applicable to Program and Project-Specific Impacts) Impact Significance Mitigation Measure Significance before Mitigation after Mitigation o dBA CNEL,which is below the significance threshold of 70 dBA �. LddCNEL for this land use type.This level would also be less o than the significance threshold of 75 dBA LddCNEL for the y proposed industrial/business park.A 12400t sound wall would Cn also reduce freeway noise exposure at the nearest proposed residences to 61.2 dBA LddCNEL,not accounting for additional attenuation provided by the intervening presence of the v industrial/business park. ► Agricultural Activity,Industrial,and Commercial Noise. o Before the approval of building permits for each individual subdivision,SJCCDD shall evaluate the building permits for compliance with the San Joaquin County Development Title. 9 Where individual projects do not clearly comply with interior noise standards included in these guidelines,mitigation measures such as use of dual-pane windows,mechanical air rp systems,exterior wall insulation,and other noise-reducing p building materials and methods shall be required as appropriate to reduce interior noise exposure to 45 dBA Lm(Table 4.13.3). Where individual projects do not clearly comply with exterior noise standards of the San Joaquin Development Title(Table 4.13-3),mitigation measures,such as use of noise barriers, buildings for screening,and setbacks between noise sources and receptors,shall be implemented as appropriate to minimize exterior noise levels.Where there is a question regarding pre- mitigation or post-mitigation noise levels in an area,site-specific noise studies may be conducted to determine compliance or noncompliance with County guidelines.Any and all noise studies and mitigation required by the above shall be fully funded by the College Park developers. Title 24 of the California Code of Regulations requires the preparation of an acoustical analysis for multifamily residences that demonstrates how interior noise levels will achieve a 45-dBA LddCNEL in locations where the exterior noise levels exceed 60- dBA WCNEL.As a result,a Title 24 analysis shall be prepared a as part of the final design of any proposed multifamily residential 3 my dwellings.To the extent necessary,noise control measures shall