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7771 <br /> FIGURE 3 <br /> Measured Ambient <br /> Noise Levels <br /> Future TeichertAggregate Plant Vicinity <br /> - Y <br /> San Joaquin County. July 25-26, 1990 <br /> Noise Level, dBA <br /> 80 <br /> 70 <br /> 60 <br /> 50 - <br /> 4 0 - -- <br /> 30 <br /> 12 noon 4 pm 8 pm Midnight 4 am 8 am 11 am <br /> Time of .Day. <br /> Lmax Leq --- L50 L90 <br /> 4B <br />