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4.5 Noise It is noted that the San Joaquin County Development Title transportation-related exterior noise 6. level thresholds in Table 4.5-1 do not apply to this analysis because the project does not fall within the definition of a transportation facility. Although the EIR relies upon the criteria set forth in Table 4.5.1 (Part 1) for purposes of evaluating the significance of impacts, for zoning purposes tr those criteria will only apply to noise near the new interchange, and there are no sensitive noise receptors in that location. As seen in Table 4.5-5, under the Haul Route Option 1, Segment 8, would experience a noise increase of 8.8 dBA, and could affect residence R 10 located near the southeast corner of the Blewett Road/1-5 crossing,which is shown on Figure 4.5-2.This would be a significant impact. As seen in Table 4.5-5, under Haul Route Option 2,noise levels along Segment 5 and Segment 8 would increase by about 8.7 dBA and 6.1 dBA, respectively, and therefore would be considered a significant impact.This could affect residence RIO located near the southeast comer of Blewett Road/I-5 crossing and residence R9 located on the east side of Segment 5, which is shown on Figure 4.5-2. As seen in Table 4.5-5, under Haul Route Option 3, noise levels along Segments 1,2, 3, and 9 r. would increase by about 12.5 dBA, 18.3 dBA, 11.8 dBA,and 10.1 dBA, respectively,and therefore would be a significant impact. There are eight residences along Segment 2, two residences along Segment 3, and approximately four residences at the intersection of Welty and State Route 33 and an additional four residences further along Segment 9 that could be affected by the estimated increases in noise levels from project truck traffic. As seen in Table 4.5-5,cumulative traffic in combination with the project would significantly increase noise levels under all three haul route options along the majority of the modeled roadway segments. The significant project-related increases in noise levels along Segment 1 and 8 under Haul Route Option 1,along Segments 1, 5 and 8 under Haul Route Option 2, and along Segments 1, 2, 3, and 9 under Haul Route Option 3 would be incremental effects that are cumulatively considerable at these locations. Mitigation Measures Measure 4.5.3: Depending on the selected Haul Route Option, the Applicant shall notify the homeowners (located along the roadway segments that would experience significant traffic-related noise)of the noise impacts associated with the traffic from project ` operations. At the request of homeowners along the affected segments(limited to a reasonable number of complaints as determined by the County and not to exceed once a year), the Applicant shall retain a qualified acoustical consultant to evaluate outdoor activity area and interior noise levels to determine if roadway traffic associated with the project is resulting in exterior noise levels that exceed 65 dBA DNL or interior noise levels that exceed 45 dBA DNL(the exterior and interior noise level standards contained in the San Joaquin County Development Title, respectively).For interior noise measurements, residences with air- conditioning units will be evaluated with windows closed; residences with no air ` conditioning units will be evaluated with windows open if that is the normal operating condition. V RMC Pacific Vernalis Quarry Mining and Reclamation Project ESA/203015 Draft Environmental Impact Report May 2006