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4a 3 info submitted by applicant regarding soundSource: Osha https://www.osha.gov/dts/osta/otm/new_noise/images/fig4.gif Decibels Meters Feet 95 1 3 95 2 7 95 4 13 95 8 26 95 16 52 95 32 105 95 64 210 95 128 420 95 256 840 95 512 1680 Five Closest Neighbors Neighbor 1 1023 ft Neighbor 2 1063 ft Neighbor 3 1083 ft Neighbor 4 1231 ft Neighbor 5 2023 ft 35 https://www.osha.gov/dts/osta/otm/new_noise/ As a principle of physics, the sound pressure level decreases 6 dB each time the distance from the point source is doubled. This is a common way of expressing the inverse-square law in acoustics and is shown in Figure 4. Decibels at Point of Measure 89 83 77 71 65 59 53 47 41