2023 06 28 Acoustical Evaluation

Mr. Lawrence BenBassett -5- 28 June 2023 Table 2 – Expected A-weighted Sound Levels due to Mechanical Equipment and Drive-Thru Intercoms, 470 Eagle Rock Avenue, West Orange, New Jersey. Location Sound Level, dB(A) Expected Limit 1 44 50 2 47 50 3 48 50 Measured Ambient Leq Sound Level, dB(A) 50 to 60 Although customer cars are not subject to the limits of the NJDEP noise regulation, the table below shows the expected sound levels with 22 cars idling in the drive thru lines and with a single car idling at the nearest menu board. The results are compared to the measured ambient Leq sound levels during the proposed hours of operation. Table 3 – Expected A-weighted Sound Levels due to Idling Cars, 470 Eagle Rock Avenue, West Orange, New Jersey. Location Sound Level, dB(A) 22 Cars on Site 1 Car at Drive Thru 1 43 36 2 50 43 3 50 40 Measured Ambient Leq Sound Level, dB(A) 50 to 60 Figure 2, at the end of this letter, shows the expected octave band sound pressure levels at the nearest residential property lines due to the proposed mechanical equipment and intercom loudspeakers, compared to the applicable limits of the NJDEP noise regulation. The results of the evaluation indicate that the sound levels due to the mechanical equipment and intercom loudspeakers are expected to meet the applicable limits of the NJDEP noise regulation at the nearest property lines with the recommendations provided in this letter.