130814 Acoustic Report 230913 · MCU13/0171

Cooroy Property Trust Pty Ltd c/- Lavin Trading
Environmental Noise Level Study for Proposed Wimmers Soft Drink Manufacturing Facility,
271 Lake Macdonald Drive, Lake Macdonald                                                                    Page 15 of 32




                         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. 2409371,
    with Type BZ 7220 Software and Prepolarised free-field ½” microphone, Type 4189, Serial No.
    2395445;

•   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. 2292736.

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:           -26.1 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 at the southern end of the site, just to the north-east of the existing office
building on the property, with the microphone elevated 1.8 metres above ground level. This monitoring
location would have a similar ambient noise level to all of the surrounding residences, due to the
rural/residential nature of the area and minimal traffic on Lake Macdonald Drive. 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: R13095/D2847/Rev.0/23.09.13