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Project Name:TheAddington <br />Job Number:11177 <br />Analyst:B. Lawson <br />Source:Outdoor Pool/Spa Activity <br />347.0 <br />NOISE MODEL INPUTS <br />Noise Distance to Barrier: <br />357.0Noise 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 />-37.1-37.1 -37.1 -37.1-37.1-37.1357.0Distance Attenuation <br />46.431.6 34.6 41.037.9-37.1 <br />347.0Shielding (Barrier Attenuation)0.00.0 0.0 0.00.00.0 <br />Raw (Distance + Barrier) <br />Observer Height:5.0 feet <br />Observer Location:R2 <br />46.431.6 34.6 41.037.9-37.160 <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:Roof-Top Parking <br />394.0 <br />NOISE MODEL INPUTS <br />Noise Distance to Barrier: <br />417.0Noise Distance to Observer <br />feet <br />feet <br />Noise Source Elevation:40.0 <br />Observer Elevation:0.0 feet <br />feet <br />Barrier Height:6.0 <br />Noise Source Height:5.0 feet <br />feet <br />Drop Off Coefficient:15.0 <br />20 = 6 dBA per doubling of distance <br />15 = 4.5 dBA per doubling of distance <br />23.0Barrier Distance to Observer:feet <br />Barrier Type (0-Wall, 1-Berm):0 <br />Leq LmaxL50 <br />68.644.0 <br />L25 <br />47.0 <br />L2 <br />61.0 <br />L8 <br />55.00.0 <br />Noise Level <br />NOISE MODEL PROJECTIONS <br />Distance (feet) <br />10.0Reference (Sample) <br />-24.3-24.3 -24.3 -24.3-24.3-24.3417.0Distance Attenuation <br />39.014.4 17.4 31.425.4-29.6 <br />394.0Shielding (Barrier Attenuation)-5.3-5.3 -5.3 -5.3-5.3-5.3 <br />Raw (Distance + Barrier) <br />Observer Height:5.0 feet <br />Observer Location:R2 <br />39.014.4 17.4 31.425.4-29.660 <br />Condition:Operational <br />Barrier Elevation:0.0 feet <br />Minute Hourly Adjustment <br />STATIONARY SOURCE NOISE PREDICTION MODEL 10/7/2019 <br />2-203