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Project Name:TheAddington <br />Job Number:11177 <br />Analyst:B. Lawson <br />Source:Courtyard Activity <br />12.0 <br />NOISE MODEL INPUTS <br />Noise Distance to Barrier: <br />232.0Noise Distance to Observer <br />feet <br />feet <br />Noise Source Elevation:0.0 <br />Observer Elevation:0.0 feet <br />feet <br />Barrier Height:20.0 <br />Noise Source Height:5.0 feet <br />feet <br />Drop Off Coefficient:20.0 <br />20 = 6 dBA per doubling of distance <br />15 = 4.5 dBA per doubling of distance <br />220.0Barrier Distance to Observer:feet <br />Barrier Type (0-Wall, 1-Berm):0 <br />Leq LmaxL50 <br />83.673.8 <br />L25 <br />76.0 <br />L2 <br />80.9 <br />L8 <br />78.575.2 <br />Noise Level <br />NOISE MODEL PROJECTIONS <br />Distance (feet) <br />10.0Reference (Sample) <br />-27.3-27.3 -27.3 -27.3-27.3-27.3232.0Distance Attenuation <br />39.830.0 32.2 37.134.731.4 <br />12.0Shielding (Barrier Attenuation)-16.5-16.5 -16.5 -16.5-16.5-16.5 <br />Raw (Distance + Barrier) <br />Observer Height:5.0 feet <br />Observer Location:R5 <br />39.830.0 32.2 37.134.731.460 <br />Condition:Operational <br />Barrier Elevation:0.0 feet <br />Minute Hourly Adjustment <br />STATIONARY SOURCE NOISE PREDICTION MODEL 10/7/2019 <br />Project Name:TheAddington <br />Job Number:11177 <br />Analyst:B. Lawson <br />Source:Outdoor Pool/Spa Activity <br />392.0 <br />NOISE MODEL INPUTS <br />Noise Distance to Barrier: <br />402.0Noise Distance to Observer <br />feet <br />feet <br />Noise Source Elevation:50.0 <br />Observer Elevation:0.0 feet <br />feet <br />Barrier Height:0.0 <br />Noise Source Height:4.0 feet <br />feet <br />Drop Off Coefficient:20.0 <br />20 = 6 dBA per doubling of distance <br />15 = 4.5 dBA per doubling of distance <br />10.0Barrier Distance to Observer:feet <br />Barrier Type (0-Wall, 1-Berm):0 <br />Leq LmaxL50 <br />83.568.7 <br />L25 <br />71.7 <br />L2 <br />78.1 <br />L8 <br />75.00.0 <br />Noise Level <br />NOISE MODEL PROJECTIONS <br />Distance (feet) <br />5.0Reference (Sample) <br />-38.1-38.1 -38.1 -38.1-38.1-38.1402.0Distance Attenuation <br />45.430.6 33.6 40.036.9-38.1 <br />392.0Shielding (Barrier Attenuation)0.00.0 0.0 0.00.00.0 <br />Raw (Distance + Barrier) <br />Observer Height:5.0 feet <br />Observer Location:R5 <br />45.430.6 33.6 40.036.9-38.160 <br />Condition:Operational <br />Barrier Elevation:0.0 feet <br />Minute Hourly Adjustment <br />STATIONARY SOURCE NOISE PREDICTION MODEL 10/7/2019 <br />2-213