PACIFIC NATIONAL SPOTSWOOD MAINTENANCE ... - Hobsons Bay

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The SEPP N-1 noise limits at any future residential properties to the south of the SMC site in Precinct 16 have been calculated based on this land being rezoned residential and are presented in Table 3. Table 3 SEPP N-1 noise limits (based on land rezoned to residential) – South of SMC site Period Zoning level Background noise level Noise limit Day 52dBA 44dBA 52dBA Evening 46dBA 46dBA 49dBA Night 41dBA 40dBA 43dBA The SEPP N-1 noise limits at any future residential properties to the north of the SMC site in Precinct 17 based on the current zoning (mixed use zone) have been calculated and are presented in Table 4. Table 4 SEPP N-1 noise limits (based on current zoning) – North of SMC site Period Zoning level Background noise level Noise limit Day 56dBA 44dBA 56dBA Evening 49dBA 46dBA 49dBA Night 44dBA 40dBA 44dBA 5.2 SMC noise emissions An extensive noise survey of the activities at the SMC site was undertaken on 30 August 2006 between 1100-1230hrs (11:00am-12:30pm). The results of this survey are presented in Table 5. S:\Project\2006\2006232ML\RP 001 R05 0228 - SMC noise impact assessment - FINAL.doc 6
Table 5 SMC site activities noise emissions Description Distance Noise level, L eq Noise level, L max Comments Stationary locomotive Notch 4 30m 80dBA 87dBA Stationary locomotive 30m 84dBA 85dBA Notch 8 Pass-by locomotive 17m 76dBA 88dBA at low speed Locomotive horn 17m - 105dBA Used when a locomotive enters or exits a shed Locomotive in Test Cell 24m 73dBA 74dBA Notch 8, Doors open Test Cell A/C louvres 15m 66dBA 68dBA Washing compressor in 8m 75dBA 76dBA Wash Facility Roller door alarm 2m 79dBA 81dBA Operates for a maximum of 3 minutes Forklift pass-by 5m 80dBA 86dBA 6.0 NOISE ASSESSMENT Noise emissions from the SMC site at Precincts 16 and 17 were predicted using the proprietary sound level prediction software SoundPlan with the CONCAWE method. The CONCAWE method was originally described in The Propagation of Noise from Petroleum and Petrochemical Complexes to Neighbouring Communities (1981). While developed for the petrochemical industry, the method is generally applicable to environmental noise propagation. Environmental parameters such as temperature, wind speed and direction, fog and temperature inversions significantly influence the propagation of noise. The CONCAWE method deals explicitly with the influence of wind and the stability of the atmosphere. Neutral weather conditions (calm with no temperature inversions) were considered. For the purpose of the noise modelling, Pacific National has provided different scenarios for current and potential future operations of the SMC. These scenarios are detailed in a letter from Pacific National to Clayton Utz dated 31 January 2007 and presented in Appendix C. The scenarios are summarized in Table 6. All operations presented in Table 6 operate for a 30 minute period unless otherwise stated. S:\Project\2006\2006232ML\RP 001 R05 0228 - SMC noise impact assessment - FINAL.doc 7
Page 1 and 2: Marshall Day Acoustics Pty Ltd A.C.
Page 3 and 4: 1.0 INTRODUCTION The Pacific Nation
Page 5 and 6: Figure 1: Zoning surrounding the SM
Page 7: Table 1 SEPP N-1 time periods Perio
Page 11 and 12: Noise source One locomotive travell
Page 13 and 14: Predicted noise levels throughout P
Page 15 and 16: Noise contours of predicted noise l
Page 17 and 18: The Planning Scheme Amendment C33 a
Page 19 and 20: APPENDIX B SITE AERIAL PHOTOGRAPH
Page 28 and 29: APPENDIX D PRECINCT 16 - NOISE CONT
Page 30 and 31: Figure D3 - Evening/Night shift Fig
Page 32: Figure D7 - Day/Evening shift - Cur

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