Appendix C - Acoustic Report · 132007.2446.05

Tamobrojo Pty Ltd
Environmental Noise Level Impact Assessment for Proposed Increase to Bed Numbers for
Flashpackers, 102 and 106 Pacific Avenue, Sunshine Beach                                                 Page 6 of 22




Noise Limits

The Noosa Council Town Plan does not contain specific noise limits. However, in accordance with the
Environmental Protection (Noise) Policy 2008 the following should be noted:

1. Acoustic Quality Objectives. For the whole of Queensland the acoustic quality objectives are
   target noise levels which should not be exceeded. These are, for residential:

    •    Outdoors, daytime and evening:
            o 50 dB(A) LAeq,adj,1hr;
            o 65 dB(A) LA1,adj,1hr; and
            o 55 dB(A) LA10,adj,1hr;

    •    Indoors, daytime and evening:
             o 35 dB(A) LAeq,adj,1hr;
             o 45 dB(A) LA1,adj,1hr; and
             o 40 dB(A) LA10,adj,1hr;

    •    Indoors, night-time:
             o 30 dB(A) LAeq,adj,1hr;
             o 40 dB(A) LA1,adj,1hr; and
             o 35 dB(A) LA10,adj,1hr;

As it is not possible to assess inside the adjoining residential, the internal noise criteria needs to be
converted to the equivalent external criteria. To assist in converting the interior noise limits to
equivalent external noise limits, reference is made to the Department of Environment and Heritage
Protection Guideline, Noise Control, Planning for Noise Control, Version 1 dated 15 January 2016,
and in particular Table 7. Table 7 nominates different noise reduction levels for various states of
windows wide open, partially closed or completely closed, namely 5 dB(A), 10 dB(A) and 20 dB(A)
respectively. In addition, it should be noted that the ‘partially closed criteria’ protects at least 90
percent of the population from the adverse effects of transient noise, and for this reason a difference
of 10 dB(A) has been adopted to convert the interior noise criteria to the equivalent noise criteria
outside the residences.

Therefore, for the night-time period the equivalent external noise criteria would be:

    •    30 + 10 = 40 dB(A) LAeq,adj,1hr;
    •    40 + 10 = 50 dB(A) LA1,adj,1hr;
    •    35 + 10 = 45 dB(A) LA10,adj,1hr;


2. Background Creep.

    The ‘background creep’ noise limit criteria is specifically designed to adequately account from the
    additive effect of a number of different noise sources, which can be generated by a number of
    different premises. For the 2018 report the background creep criteria was adopted as the most
    appropriate noise limit criteria. This is the criteria which has also been adopted in this report.

         10        Controlling Background Creep

                   (1)      This section states the management intent for an activity involving noise.

                   (2)      To the extent that it is reasonable to do so, noise from an activity must not be-

                            (a)      for noise that is continuous noise measured by LA90,T – more than nil
                                     dB(A) greater than the existing acoustic environment measured by
                                     LA90,T; or



David Moore & Associates Pty Ltd                                           Our reference: R20074/D3310/Rev.0/11.12.20