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Welborn Sullivan Meck&Tooley&Leadville Sanitation 12 <br /> June 9,2023 <br /> Figure 4: Crusher Distance from Sewer Line & WWTF Structure <br /> r <br /> Crusher to Sewer <br /> v2Dft t_. >t _nt. . <br /> !t <br /> r <br /> Crusher Location <br /> h». <br /> Calculated PPVs are shown in Table 4. Values are converted to meters so they can be <br /> displayed in the Figure 5: <br /> Table 4: Vibration Amplitude Estimates <br /> Asset Distance Distance PPV PPV <br /> (ft) (m) (inches/sec) (meters/sec) <br /> Sewer 125 37 0.020 0.507 <br /> Building 1,265 386 0.001 0.015 <br /> A series of curves for typical earth vibrations, showing peak particle velocity in mm/sec <br /> versus distance from source in meters, was developed by Wiss as a comparison of <br /> different vibration producing construction activities (Wiss, 1981). See graph below. This <br /> shows estimated vibrations from multiple machines, and provides context to the <br /> estimated expected vibrations at the sewer and structure. <br />