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Based on the noise monitoring data collected during train pass-bys, the trains are not generally <br />expected to cause exceedances of the State Noise standards. Analysis of time history Monitoring <br />data collected train pass-bys at the project site show that the full length trains cause elevated <br />noise levels (above 64.5 dBA) for about 90 to 110 seconds. Without the proposed berm, it would <br />likely take four or more full length trains passing by in an hour to approach the 6 minutes of <br />impact required for the Lio exceedances. One to three full length trains passed by per hour during <br />the monitoring. This is consistent with MnDOT rail traffic information for this track. Therefore, <br />train noise is not likely to cause the Minnesota noise standards to be exceeded in a way that <br />requires additional mitigation. <br />