Acoustic report

Hass Holdings atf The Quasar Trust
Environmental Noise Level Study for Proposed Industrial Business Type 2 (Production, Alteration, Repackaging
and Repairing), 5 Taylor Court, Cooroy                                                                          Page 7 of 17




Based on the average background sound levels (LA90,T) the applicable noise limits are:

Continuous Noise
   • daytime (0700 to 1800 hours):                          41.9 + 0 = 42 dB(A) LA10,adj,T;
   • evening (1800 to 2200 hours):                          46.6 + 0 = 47 dB(A) LA10,adj,T;
   • night-time (2200 to 0700 hours):                       39.2 + 0 = 39 dB(A) LA10,adj,T.

Time Varying Noise
   • daytime (0700 to 1800 hours):                          41.9 + 5 = 47 dB(A) LA10,adj,T;
   • evening (1800 to 2200 hours):                          46.6 + 5 = 52 dB(A) LA10,adj,T;
   • night-time (2200 to 0700 hours):                       39.2 + 3 = 42 dB(A) LA10,adj,T.


SOURCE NOISE LEVELS

From previous noise level measurements conducted by the consultant of industrial premises involving
metalwork, woodwork, vehicle repairs, trailer manufacturing, etc Table 2 details typical source noise
levels.


                                                       Table 2
                                             Typical Source Noise Levels

                                    Distance                                   Noise Level, dB(A)
            Activity
                                       (m)          LAeq,adj,T     LA1,adj,T        LA10,adj,T      LA90,T     maximum
Vehicle Movements
•   car door closing:                   10             62             65               64            60            72
•   car engine starting:                10             61             63               63            58            70
•   car driving:                        10             56             59               58            54            66
•   delivery truck:                     10             62             66               64            60            75
•   unloading/loading vehicle:          10             60             66               62            57            75
•   people talking:                     10             61             66               64            56            74
Manufacturing
•   hand-held power saw:                 1             85             90               87            80            98
•   power drill:                         1             80             84               81            80            90
•   electric belt sander:                1             88             92               89            87            97
•   panel saw:                           1             85             90               86            86            95
•   100mm electric angle                 1             93            100               96            95           105
    grinder:
•   welding:                             1             83             88               85            85            95
•   compressor*:                         1             85             90               86            83            95
•   bench grinder:                       1             76             80               77            80            88
•   combined noise of                    5             88             98               92            84           100
    grinding, metal cut off
    saw, welding, radio and
    some hammering
*continuous noise source

From noise assessments of offices the noise level of airconditioning units is typically 76 dB(A) LWA.



David Moore & Associates Pty Ltd                                                  Our reference: R18062/D3342/Rev.0/25.09.18