Appendix 4 - accoustic report · MCU19/0117

Mark Bain Constructions Pty Ltd
Environmental Noise Level Impact Assessment for Proposed Wave Lagoon, 500/90 Beach Road,
Noosa North Shore                                                                                      Page 4 of 16




CRITERIA

All noise level measurements were conducted in accordance with the following:

   general requirements of the Queensland environmental protection legislation;

   Environmental Protection (Noise) Policy 2019;

   Noise Measurement Manual, Queensland Government, Department of Environment and Heritage
    Protection, Version 4, August 2013;

   Australian Standard AS 1055-2018, Acoustics – Description and Measurement of Environmental
    Noise.


NOISE LIMITS

For all of the steady state and time varying noise sources the noise limits have been defined in
accordance with the Acoustic Quality Objectives and the default noise standards of the Queensland
environmental protection legislation.

In accordance with the default noise standards there are no noise limits for blowers, but the noise
limits for pumps (which, by definition includes spa blowers) are:

        daytime (0700 to 1900 hours):                 background + 5 dB(A);
        evening (1900 to 2200 hours):                 background + 3 dB(A);
        night-time (2200 to 0700 hours):              inaudible.

It has been assumed that the above noise limit criteria would be equally applicable to blowers as well
as pumps.

The acoustic quality objectives are:

        Acoustic quality objectives, daytime and evening, external to dwelling:
            o 50 dB(A) LAeq,adj,1H;
            o 55 dB(A) LA10,adj,1H; and
            o 65 dB(A) LA1,adj,1H;

        Acoustic quality objectives, daytime and evening, inside dwelling:
            o 35 dB(A) LAeq,adj,1H;
            o 40 dB(A) LA10,adj,1H; and
            o 45 dB(A) LA1,adj,1H;

        Acoustic quality objectives, night-time, inside dwelling:
            o 30 dB(A) LAeq,adj,1H;
            o 35 dB(A) LA10,adj,1H; and
            o 40 dB(A) LA1,adj,1H;

For the night-time period the internal noise criteria needs to be converted to be equivalent to outside
the closest residences. Allowing a 5 dB(A) noise level reduction from outside to inside (based on all of
the windows fully open and in accordance with the Queensland Environmental Protection Agency
Ecoaccess Guideline Planning for Noise Control) the internal criteria would be equivalent to the
following levels external to the dwelling:




David Moore & Associates Pty Ltd                                       Our reference: R19099/D3453/Rev.0/21.01.2020