Attachment 7 - Acoustic Report

6.2     Environmental Noise Criteria
To ensure a reasonable acoustic amenity is maintained, we recommend environmental noise be
assessed in accordance with the Environmental Protection (Noise) Policy 2008, as follows:


6.2.1    Acoustic Quality Objectives
Table 6 presents the acoustic quality objectives at noise sensitive receptors as detailed in Schedule
1 of the EPP (Noise) 2008.

                           Table 6: Acoustic Quality Objectives at Noise Sensitive Properties

                                                                     Acoustic Quality Objectives, dB(A)
          Sensitive Receptor           Time of Day
                                                               LAeq,adj,1hr      LA10,adj,1hr     LA1,adj,1hr

               Dwelling             Day and Evening
                                                                   50                55              65
              (outdoors)             (7am – 10pm)

                                    Day and Evening
              Dwelling                                             35                40              45
                                     (7am – 10pm)
              (Indoors)
                                  Night (10pm – 7am)               30                35              40



6.2.2    Background Creep
The Background Creep criteria are as follows;

        Time-varying noise:
                                      LAeq,adj,T, ≤ Ambient LA90,T + 5dB(A)

        Steady-state noise:
                                              LA90,T ≤ Ambient LA90,T

The time period (T) is a time interval of at least 15 minutes, or if the noise continues for less than
15 minutes, the duration of the noise source.

Based on the results of ambient noise monitoring, the project specific background creep noise limits
are shown in Table 7.
                                        Table 7: Background creep noise limits

                                                            Noise Level Limits SPL dB(A)
                                   Time Period
                                                               LAeq,T               LA90,T
                                 Day 7am – 6pm                  45                   40
                               Evening 6pm – 10pm               43                   38
                                Night 10pm – 7am                38                   33




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