Background NoiseBackground (ambient) noise measurements were done over a one week period in August 2014.
The table below presents three different measures of background noise, extracted from the same data set. These represent the three main ways of measuring background noise.
In such a rural/natural environment with high amenity values (and high resident expectations) for "peace and quiet" then the maximum acceptable imposed noise level should be no more than background+5dB. This standard has been used at other locations in Queensland and in NSW.
So, taking Leq readings, the maximum acceptable noise levels for daytime operation (7am to 6pm) would be 37+5dB = 42dB. And for evenings (6pm to 10pm) it would be 30+5dB = 35dB. Note that background noise levels were measured in the open air, so indoor background levels would be lower and imposed noise maxima would also be lower than these figures.
Predicted Noise Levels at HousesThe table below is a key to the locations of "Receivers" (i.e. houses) for which noise levels were predicted by the acoustic model used by the consultant. The two tables after it refer to Receivers No. 1-18, and the street addresses of these are given in the right-hand column of the table below.
|Receiver Locations for Noise Predictions in Following Tables (none of the directions given are accurate - the consultant fails to understand that "due" means "exactly" in this context)|
Nevertheless, if we just take the Applicant's maximum noise values, the 50dB value is exceeded at two locations outdoors (whereas background+5=42 is exceeded at eight locations). For indoors, the Applicant's criterion of 35dB is exceeded at eight locations.
In summary, the Applicant is not able to meet even his own unjustifiably high maximum noise limits - and I have bee advised that these are 15-20dB(A) higher than those used by another Council.