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 14 of 32


•   cooling tower:                              80 dB(A) LA10,adj,T @ 1 m – 51 (distance) – 10 (building) = 19
                                                dB(A);

•   exhaust fans:                               65 dB(A) LA10,adj,T @ 1 m + 10 (ten to 12 fans operating) – 51
                                                (distance) – 4 (ground) = 20 dB(A);

•   pumps:                                      70 dB(A) LA10,adj,T @ 1 m + 10 (ten to twelve pumps operating)
                                                – 51 (distance) – 10 (building) = 19 dB(A);

•   combined noise:                             20 + 19 + 20 + 19 = 26 dB(A) LA10,adj,T.

All of the above noise sources comply with the time varying and steady state noise limits at the closest
residence to the south, on the western side of Lake Macdonald Drive.


NOISE CONTROL MEASURES

As the time varying and steady state noise limits are complied with for the complete 24-hour period, no
noise control measures are required.


CONCLUSIONS

It is proposed to establish a Wimmers soft drink manufacturing facility at 271 Lake Macdonald Drive,
Lake Macdonald. Potential noise sources associated with this development could include:

•   truck movements, including semi trailers and forklifts;
•   passenger vehicle movements on site;
•   external steady state noise sources, including airconditioning plant, pumps, etc;
•   internal manufacturing machinery; and
•   materials handling within manufacturing - forklifts.

The closest residences to the subject site (and separation distance) are as follows (as determined from
site visit and Google Maps):

•   north, on the western side of Lake Macdonald Drive, approximately 350 metres from manufacturing;
•   east on the eastern side of Lake Macdonald Drive, approximately 220 metres from manufacturing;
•   south-east on the eastern side of Lake Macdonald Drive, approximately 230 metres from
    manufacturing;
•   south, on the western side of Lake Macdonald Drive, approximately 350 metres from manufacturing.

To assess current ambient noise levels an extended (8-day) ambient noise assessment was conducted
from the southern end of the site, from just to the north-east of the existing office building on the
property. 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.

Based on the calculations detailed in this report all potential noise sources comply with the time varying
and steady state noise limits at the above closest residences, for the complete 24-hour day. To achieve
this compliance with the noise limits no noise control measures are required.


RECOMMENDATION

It is recommended that, from an environmental noise perspective, the proposed Wimmers soft drink
manufacturing facility be approved, with no noise control measures required for 24-hour operation.




David Moore & Associates Pty Ltd                                               Our reference: R13095/D2847/Rev.0/23.09.13