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Memorandum to: Kent Peterson <br /> Bituminous Roadways <br /> October 7, 2010 <br /> Page 6 <br /> project during the temporary crushing operations are unlikely to be detectable at the monitoring <br /> locations and would not be a significant increase in existing noise levels. <br /> Conclusions <br /> The noise level data collected and analyzed supports the conclusions within the EAW that the <br /> Bituminous Roadways proposed Roseville Asphalt Plant would comply with MPCA noise <br /> standards. The noise generated by the proposed project would be Tess than the appropriate noise <br /> standards at both industrial and residential properties adjacent to the project site. This would be <br /> true under both normal operations conditions as well as during times when crushing would take <br /> place at the facility. Monitoring of the existing noise levels near the project site was conducted. <br /> The addition of the noise generated by the proposed project to the existing, noise levels would <br /> result in a slight increase of noise, less than two decibels in all instances. This small increase is <br /> below the human threshold for perceptible detections of changes in sound levels. As a result, the <br /> proposed project would not result in significant impacts to noise levels in the project area. <br /> T.4O125 -B. ononous RU 1 2009 Roseville CUNoiseV nemo-2010.10 -O6 doe <br />