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80 Sound Level, dB <br /> 75 <br /> 70 ............... - ......... ............ <br /> 65 - _.... .... ..... ....... <br /> 60 _......_. <br /> 55 _ ........ .......... <br /> 50 nq <br /> 45 <br /> 40 <br /> 35 <br /> Midnight 4 am 8 am 12 noon 4 pm 8 pm 11 pm <br /> Hour of Day a <br /> (Average (Leq) A-Maximum (Lmax) -w Median (1-50) -a Background (1-90) <br /> Source: Brown-Buntin Associates <br /> Figure 4.6-3 Measured Ambient Noise Levels - Site B (3/12/97) <br /> Draft Environmental Impact Report ER-96-3 <br /> ! °rte ; I = � r <br />