Att6 - Noise Impact Assessment

Christian Youth Council
Environmental Noise Level Impact Assessment for Proposed Extensions to CYC Youth Camp,
48 Kabi Road, Cootharaba                                                                                                                                                      Page 9 of 22



                                                              Table 1
                                    Results of Ambient Noise Assessment, Monitoring Location A
                                                   LAeq,T                              LA1,T                              LA10,T                              LA90,T                 RBL




                                                     Maximum




                                                                                        Maximum




                                                                                                                            Maximum




                                                                                                                                                                Maximum
                                         Minimum




                                                                             Minimum




                                                                                                                Minimum




                                                                                                                                                    Minimum
                                                                  Average




                                                                                                     Average




                                                                                                                                         Average




                                                                                                                                                                           Average


                                                                                                                                                                                      Average
     Day          Date       Time




                            Day         31.4        53.4         46.1       36.2       64.6         55.0       33.2        57.7         47.9       28.4        46.9       38.4       29.6

 Monday         11.07.22    Evening     29.9        31.9         31.1       34.0       40.6         36.2       31.2        33.4         32.6       28.0        30.2       29.0       28.0

                            Night       28.0        46.1         34.8       32.1       58.9         45.1       29.1        45.2         35.7       26.2        34.2       29.9       26.9

                            Day         30.8        54.2         47.1       39.8       62.8         53.8       33.1        55.3         48.8       25.8        52.1       43.8       29.7

 Tuesday        12.07.22    Evening     26.2        36.1         30.3       32.1       42.9         37.7       27.7        40.0         33.2       23.4        28.8       25.4       23.6

                            Night       24.7        46.7         36.0       30.4       53.4         44.4       25.8        46.1         36.6       22.5        35.1       27.0       22.6

 Wednesday      13.07.22    Day         34.2        63.7         51.3       41.3       73.5         61.6       36.1        68.8         55.5       28.3        39.9       35.4       30.0




Average Noise Level

                         Daytime                               46.4                                                                   Daytime                             37.0
  LAeq,T                 Evening                               33.2                               LA90,T                              Evening                             27.9
                         Night-time                            35.4                                                             Night-time                                28.4
                         Daytime                               56.2                                                                   Daytime                             29.4
  LA1,T                  Evening                               41.7                               RBL                                 Evening                             23.7
                         Night-time                            45.0                                                             Night-time                                23.1
                         Daytime                               48.9
  LA10,T                 Evening                               35.6
                         Night-time                            36.8

With respect to the days of the 7-day ambient noise assessment the following weather conditions
should be noted:

    •      Wednesday 6th July:                                 5.6 mm rain;
    •      Friday 7th July:                                    0.2 mm rain;
    •      Monday 11th July:                                   0.6 mm rain;
    •      Tuesday 12th July:                                  0.2 mm rain;
    •      Wednesday 13th July:                                24.4 mm rain.

It is apparent from the above background sound levels that the rain event on Wednesday 13 th July
occurred after the noise logger was retrieved from the subject site.

The above weather conditions did not adversely impact the background sound levels and, therefore,
none of the measured background sound levels needed to be excluded from the RBL.

Based on the above RBL values the noise limits for the CYC Noosa Campsite activities would be:

    •      steady-state noise (air-conditioners, fans, etc):
               o daytime:           29 + 0 = 29 dB(A) LA90,T;
               o evening:           24 + 0 = 24 dB(A) LA90,T;
               o night-time:        23 + 0 = 23 dB(A) LA90,T;




David Moore & Associates Pty Ltd                                                                   Our reference: R22072.docx/D3681/Rev.0/25.08.2022