Acoustic report

Hass Holdings atf The Quasar Trust
Environmental Noise Level Study for Proposed Industrial Business Type 2 (Production, Alteration, Repackaging
and Repairing), 5 Taylor Court, Cooroy                                                                         Page 12 of 17




                         APPENDIX A: AMBIENT NOISE LEVEL MEASUREMENTS

Measurement Equipment

The following equipment was used to conduct the ambient noise level study at Monitoring Location A:

•   Bruel and Kjaer Type 2260I Modular Precision Sound Analyzer – Observer – Serial No. 2409372,
    with Type BZ 7220 Software and Prepolarised free-field ½” microphone, Type 4189, Serial No.
    2395446;

•   Bruel and Kjaer Type 3592 outdoor microphone kit, including Type UA1404 outdoor microphone;

•   Bruel and Kjaer Type AO 0442 ten metre microphone extension cable; and

•   Bruel and Kjaer Type 4231 Sound Level Calibrator, Serial No. 2292746.

All of the above equipment is Type 1 in accordance with the requirements of Australian Standard AS
1259-1990, Acoustics – Sound Level Meters, as required by Australian Standard AS 1055.1-1997.


Measurement Equipment Settings

The above equipment was used with the following settings:

•   Detector:                          RMS
•   Time Weighting:                    FAST
•   Frequency Weighting:               A
•   Sound Incidence:                   FRONTAL
•   Microphone sensitivity:            -27.3 dB
•   Range:                             10-90 dB.


Calibration

The sound level meter was calibrated to the required value of 93.8 dB at 1000 Hz immediately before
and after the noise level measurements were conducted. At no time was an adjustment of more than
0.5 dB required. This complies with the requirements of the Australian Standard.


Monitoring Location

Monitoring Location A was on the front (eastern) boundary of the private residential property at 72
Ferrells Road, Cooroy with the microphone elevated 1.8 metres above ground level. The permission of
the owner to locate the noise logger on their property is appreciated and acknowledged. Ambient noise
levels at this location would be representative of the ambient noise levels at all of the closest residences
to the subject site with a similar separation distance from the Bruce Highway. Refer Figure 1 for further
details.


Atmospheric Conditions

Throughout the ambient noise level study, atmospheric conditions complied with the requirements of the
Australian Standard.




David Moore & Associates Pty Ltd                                                Our reference: R18062/D3342/Rev.0/25.09.18