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SUBJECTIVE <br /> EXAMPLES DECIBELS (dB)" EVALUATIONS <br /> Near jet engine <br /> 140 <br /> Threshold of pain '- <br /> v <br /> 130 <br /> s Deafening <br /> "> 120 ... ..... . .......................... 32 <br /> �a <br /> Rock Band v c <br /> Accelerating motorcycle a few feet away „ �ii 110 --- ......................................- 16 <br /> os <br /> a <br /> N L <br /> Noisy urban street/heavy city traffic 'o v 100 ... ------------------------•---------- a <br /> J A <br /> Gas lawn mower at 3 feet <br /> p Very Loud <br /> Garbage disposal at 3 feet ° 90 4 O <br /> Vacuum cleaner at 3 feet 80 .............................................. 2 < <br /> Busy restaurant Moderately Loud <br /> Near freeway auto traffic 70 .............................................. t <br /> Window air conditioner at three feet <br /> Business office Range of 60 --..--- -- 1R <br /> Speech <br /> Quiet <br /> 50 .............................................. 1t4 <br /> Soft whisper at 5 feel <br /> Quiet urban nighttime 40118Faint <br /> 30 <br /> Quiet rural nighttime _ 20 <br /> 10 Very Faint <br /> Human breathing — <br /> Threshold of audibility 0 <br /> dBs are"average"values,as measured on the A-scale of a sound-level meter. <br /> From Concepts In Architectural Acoustics: M.David Egan, McGraw Hill, 1972 and U.S. Department of Housing and Urban <br /> Development, Office of Community Planning and Development The Noise Guidebook. <br /> Source: Egan 1972;U.S.Department of Housing and Urban Development 2002 <br /> Common Noise Sources and Levels FIGUBE 4.13-1 <br /> College Park at Mountain House <br /> Specific Plan III Draft EIR <br /> P 3N125.11 0295 <br />