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Project Name:TheAddington <br />Job Number:11177 <br />Analyst:B. Lawson <br />Source:Air Conditioning Unit (Roof-Top) <br />251.0 <br />NOISE MODEL INPUTS <br />Noise Distance to Barrier: <br />254.0Noise Distance to Observer <br />feet <br />feet <br />Noise Source Elevation:50.0 <br />Observer Elevation:0.0 feet <br />feet <br />Barrier Height:4.0 <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 />3.0Barrier Distance to Observer:feet <br />Barrier Type (0-Wall, 1-Berm):0 <br />Leq LmaxL50 <br />78.274.4 <br />L25 <br />76.1 <br />L2 <br />77.7 <br />L8 <br />77.40.0 <br />Noise Level <br />NOISE MODEL PROJECTIONS <br />Distance (feet) <br />5.0Reference (Sample) <br />-34.1-34.1 -34.1 -34.1-34.1-34.1254.0Distance Attenuation <br />25.121.3 23.0 24.624.3-53.1 <br />251.0Shielding (Barrier Attenuation)-19.0-19.0 -19.0 -19.0-19.0-19.0 <br />Raw (Distance + Barrier) <br />Observer Height:5.0 feet <br />Observer Location:R7 <br />23.219.4 21.1 22.722.4-55.039 <br />Condition:Operational <br />Barrier Elevation:50.0 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:Trash Enclosure Activity <br />219.0 <br />NOISE MODEL INPUTS <br />Noise Distance to Barrier: <br />506.0Noise Distance to Observer <br />feet <br />feet <br />Noise Source Elevation:0.0 <br />Observer Elevation:0.0 feet <br />feet <br />Barrier Height:50.0 <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 />287.0Barrier Distance to Observer:feet <br />Barrier Type (0-Wall, 1-Berm):0 <br />Leq LmaxL50 <br />88.569.0 <br />L25 <br />75.0 <br />L2 <br />87.0 <br />L8 <br />82.00.0 <br />Noise Level <br />NOISE MODEL PROJECTIONS <br />Distance (feet) <br />5.0Reference (Sample) <br />-40.1-40.1 -40.1 -40.1-40.1-40.1506.0Distance Attenuation <br />31.812.3 18.3 30.325.3-56.7 <br />219.0Shielding (Barrier Attenuation)-16.6-16.6 -16.6 -16.6-16.6-16.6 <br />Raw (Distance + Barrier) <br />Observer Height:5.0 feet <br />Observer Location:R7 <br />31.812.3 18.3 30.325.3-56.760 <br />Condition:Operational <br />Barrier Elevation:0.0 feet <br />Minute Hourly Adjustment <br />STATIONARY SOURCE NOISE PREDICTION MODEL 10/7/2019 <br />2-218