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Decatur Northwest 1, LLC <br /> Decatur Northwest 1 Commercial Solar Energy Facility, Decatur, IL <br /> of 100 feet or more and/or which exceeds 55 dBA when measured at any point within the receiving <br /> residential land."(Macon 2014). <br /> Table 1: Modeled and Predicted Noise Levels at Sensitive Receptor Locations <br /> A-Weighted Sound Levels(dBA) <br /> Increase to Illinois Noise Illinois Noise <br /> Site Baseline' Modeled Predicted' Baseline Standard` Standard <br /> Day Night Day Night Day Night Day Night Class C to Class C to <br /> Class A Class A <br /> R 1 50 40 45 30 51 40 1 0 61 51 <br /> R 2 50 40 27 12 50 40 0 0 61 51 <br /> R 3 50 40 31 16 50 40 0 0 61 51 <br /> R 4 50 40 31 15 50 40 0 0 61 51 <br /> R 5 50 40 28 13 50 40 0 0 61 51 <br /> R 6 50 40 37 22 50 40 0 0 61 51 <br /> R 7 50 40 34 18 50 40 0 0 61 51 <br /> 'Baseline from FTA method presented in Table 3 above. <br /> 'Modeled noise generated by proposed Project operations configuration calculated by the noise model CadnaA. <br /> 'Predicted impacts were calculated by logarithmically adding the modeled impacts to the baseline estimates. <br /> °Calculated from IPCB octave bands <br /> Figure 1 Daytime Noise Modeling Results <br /> —0 At . <br /> "i ! 'k •- <br /> i.. v {. 1 <br /> ' „ker—r7-77.4:712 - ,, . ... __77,„:„....„,, _N-r, , <br /> Hi:...rer <br /> ✓,ate!"' .1 sit--- :. , -,. :: -: 1/.-7. ,� '. <br /> . ,,„ ,. , --".... _.' till ''. ' I-i!.:;:-' '''' '-r7i'''''' <br /> _ ..., .F. '• - ;0) 0 <br /> " i ' .– <br /> ,p Li L3 04_1 <br /> r . ., [ <br /> .. <br /> — \i _ •,r;, !'i � Vii'=' • ,_� _ � 1 r' <br />