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<br /> <br />Recycle Pavement Crushing Decibel Levels <br />At Various Distances from the Source <br /> <br />Distance <br />From Source L (l0) Decibels <br />** 200' 77.0 <br />** 250' 76.5 <br />** 350' 75.0 <br />* 400' 71.0 <br />* 500' 70.5 <br />* 600' 69.0 <br />* 800' 65,0 <br />* 1000' 64.5 <br />* 1200' 63,0 <br /> <br />L (50) Decibels <br /> <br />76.0 <br /> <br />74.5 <br /> <br />73.0 <br /> <br />70.0 <br /> <br />68.5 <br /> <br />67,0 <br /> <br />64.0 <br /> <br />62.5 <br /> <br />61.0 <br /> <br />** = Actual Levels Recorded by A.E.T. on December 2,2004. <br /> <br />*= Calculated Decibel Levels Using MPCA's "A Guide to Noise Control in <br />Minnesota" Point Source Method for Decibel Level Calculation. <br /> <br />