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 6 of 32




    where the noise limit is expressed as the A-weighted average of the maximum source noise levels,
    adjusted for tonality and/or impulsiveness, LAmax,adj,T. This is equivalent to the LA10,adj,T.


    AMBIENT NOISE LEVELS

    Table 1 details the range and average ambient noise levels at Monitoring Location A, near the southern
    boundary of the site with the microphone elevated 1.8 metres.

    For details of measurement equipment, equipment settings, monitoring location and atmospheric
    conditions for the weekdays and weekend, refer Appendix A, whilst Appendix B details all of the results
    of the ambient noise level measurements.

    With respect to Table 1 the following should be noted:

           •   daytime:             0700 to 1800 hours;
           •   evening:             1800 to 2200 hours;
           •   night-time:          2200 to 0700 hours;
           •   ‘A’ weighted:        adjustment made by the sound level meter to the measured noise to
                                    correspond to the response of the human ear. This adjustment is
                                    standardised by international noise standards;
           •   LAeq,T:              the equivalent continuous (or approximately the ‘average’) ‘A’ weighted sound
                                    pressure level for the measurement period ‘T’;
           •   LA1,T:               the ‘A’ weighted sound pressure level exceeded for 1% of the measurement
                                    period ‘T’;
           •   LA10,T:              the ‘A’ weighted sound pressure level exceeded for 10% of the measurement
                                    period ‘T’, which is an approximation of the ‘average of the maximum noise
                                    levels’;
           •   LA90,T:              the ‘A’ weighted sound pressure level exceeded for 90% of the measurement
                                    period ‘T’, which is an approximation of the ‘average of the minimum noise
                                    levels’, which is also known as the ‘background’ noise level.


                                                      Table 1
                        Results of Ambient Noise Level Measurements, Monitoring Location A
                                                                 Ambient Noise Level, dB(A)
                              Time
    Day           Date                        LAeq                 LA1                  LA10                LA90
                             Period
                                         Range       Av.     Range       Av.       Range       Av.     Range         Av.
Wednesday       11.09.13    Evening     42.6-48.5    46.2   54.1-59.1    57.4     42.7-53.1    49.3   33.0-37.7      35.3
Wednesday/      11/12.      Night       27.0-53.1    43.3   32.7-62.8    54.0     28.4-52.4    45.1   23.6-38.3      33.5
Thursday        09.13
Thursday        12.09.13    Daytime     47.3-72.3    59.7   56.5-83.4    69.6     51.6-74.7    62.2   34.4-67.5      52.7
Thursday        12.09.13    Evening     38.8-50.3    47.4   46.5-59.9    57.1     39.0-54.5    50.5   33.4-39.7      36.4
Thursday/       12/13.      Night       29.2-50.8    42.9   34.6-62.1    54.3     32.1-54.5    45.7   23.0-38.0      32.6
Friday          09.13
Friday          13.09.13    Daytime     47.2-54.3    50.5   56.7-63.5    59.9     51.3-57.3    54.3   34.4-42.4      38.7
Friday          13.09.13    Evening     38.0-48.6    45.8   42.0-58.5    56.7     39.4-53.5    49.0   33.1-38.1      35.8
Friday/         13/14.      Night       26.8-50.7    41.9   33.3-60.3    53.2     28.5-51.8    43.4   23.6-35.5      30.6
Saturday        09.13
Saturday        14.09.13    Daytime     46.9-55.3    49.4   56.0-63.9    59.4     51.1-59.6    53.2   31.5-43.3      39.1




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