Environmental Noise Level Impact Assessment of Facilities Building · 132005.1133.13

Altum Constructions
Environmental Noise Level Impact Assessment of Facilities Building, Parkridge, 75 Resort Drive, Noosa Heads   Page 7 of 16




The above ambient noise levels are lower than what would be expected for the density of residential
apartments in this complex. At the time of these ambient noise assessments very few (four) apartments
appeared to be occupied (gauged by whether at approximately 2120 hour or not there were any lights
on in the apartment at approximately 2120 hours) – three in Block 2, one in Block 3 and none in Block 4.
Block 14 is currently under construction and Blocks 18 to 21 – construction not yet commenced. Once
all of these apartments are constructed and occupied the ambient noise levels will be greater, including
the background sound level (LA90,T).

It is anticipated that, with all of the apartments occupied, the background sound levels will be:

        daytime:                      45 dB(A);
        evening:                      40 dB(A);
        night (up to midnight):       35 dB(A).


In December 2019 (Monday 2 and Wednesday 18) evening background sound levels were obtained.
The early evening background sound level was 40 dB(A) LA90,T and the late evening background sound
level was 38 dB(A) LA90,T respectively, and these results support the above predicted evening
background sound level of 40 dB(A) and early night-time predicted background sound level of 35 dB(A).

In accordance with Condition 81 the associated plant and equipment noise limits will be:

        daytime (0700 to 1900 hours):                     50 dB(A);
        evening (1900 to 2200 hours):                     43 dB(A);
        night (up to midnight):                           38 dB(A).


PLANT AND EQUIPMENT

For the Facilities Building all of the plant and equipment is located on the roof plant deck. On the
western side of the plant deck a Sonic Series 100 acoustic louvre has been installed with an insertion
loss of:
      63 Hz:             -
      125 Hz:            4 dB;
      250 Hz:            5 dB;
      500 Hz:            8 dB;
      1000 Hz:           12 dB;
      2000 Hz:           16 dB;
      4000 Hz:           15 dB.

All sides of the roof top plant deck has differing height masonry nib walls, ranging from 800 mm to 1600
mm high.

The plant and equipment located on the plant deck is as follows:

        kitchen exhaust fan;
        Daikin RXYQ8AYM;
        Daikin RXYQ16AYM (gymnasium);
        Daikin RXYMQ4AV4A (two of);
        Glacier GC 301-B-2.7 (two of);
        MINT HUCE22-1M;
        MINT HUCE-1L.




David Moore & Associates Pty Ltd                                                Our reference: R19083/D3422/Rev.2/18.12.19