Noise Level Assessment Report for Noosa Quad Bike Tours MCU12/0012

Noosa Quad Bike Tours
Environmental Noise Level Assessment of Quad Bike Rider Competency Assessment Circuit,
298 Tablelands Road, Cooran                                                                                 Page 4 of 21



Noise Limits


At a separation distance of greater than 50 to 100 metres the noise from the quad bikes using the
test/training circuit would be relatively constant and best described as ’steady state’ noise. For steady
state or constant noise the most appropriate noise limit is the ’background plus allowance’ criteria,
which is background plus 5 dB(A) for the daytime, from 0700 to 1800 hours. This noise limit is
expressed as the average of the maximum source noise levels, adjusted for any tonal and/or
impulsive components, which is equivalent to the noise level exceeded 10% of the sample duration,
denoted LA10,T.


This is the noise limit that was applied in the initial version of this report, and is still considered
appropriate.

In addition to the above the Environmental Protection (Noise)Policy 2008 has the following
requirement with respect to background creep for steady state noise (which is the noise of the
airconditioning plant):

"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           ...




BACKGROUND NOISE LEVEL


After the April 2012 noise assessment of the quad bikes, a short ambient noise assessment was
conducted, with the results detailed in Table 1. Appendix A details the measurement equipment,
equipment settings,  calibration, monitoring location and atmospheric conditions and Appendix B for
the complete set of results.




                                                   Table 1
         Results of Background Noise Level Measurements, 298 Tablelands Road, Cooran,
                                   Wednesday 18 April 2012
                                                   Ambient Noise Level, dB(A)
  Time
                          LAeq                     LA1                      LA10                    LA90

                          38.5                    49.1                      40.6                    31.3
1030-1040

                          40.2                    48.2                      44.3                    31.7
1040-1050

                          41.9                    51.4                      42.9                    35.4
1050-1100

                          47.1                     60.2                     46.3                    34.0
1100-1110




Subsequent to the above brief background noise assessment, a longer term assessment
                                                                                                     was

conducted from monitoring location A and just north of the residence at 295 Tablelands Road, set
                                                                                          2 for
back from Tablelands Road a similar distance as the residence at this address refer Table
                                                                                          -




details. Appendix C details the measurement equipment, equipment settings, calibration, monitoring
location and atmospheric conditions.




 David Moore & Associates Pty Ltd                                        Our reference: R12054/D2670/Rev.1/23.07.2012