Annex B5-4
Noise Assessment for Operation of Landfill Extension 
NSR: IR1 Island Resort, Siu Sai Wan
　 　 　 SWL, dB(A) [1] % on time Distance from source to NSR (d2),m Corr. For (dB(A)) Predicted Noise Level (dB(A))
　 　 　 Distance [2] Façade Topo Time
Activity No. Activity Description
Fixed plants 1 Landfill Gas Power Plant Room - Engine 1 [3] 95 50% 2500 -76 3 0 -3 19 　 80
　 2 Landfill Gas Power Plant Room - Engine 2 [3] 95 50% 2500 -76 3 0 -3 19 　 80
　 3 Blower Room No. 1[4] - Blower 1 108 100% 2500 -76 3 0 0 35 　 3206
　 4 Blower Room No. 1[4] - Blower 2 108 100% 2500 -76 3 0 0 35 　 3206
　 5 Blower Room No. 1[4] - Blower 3 108 100% 2500 -76 3 0 0 35 　 3206
　 6 Blower Room No. 1 - Compressor 1 100 100% 2500 -76 3 0 0 27 　 508
　 7 Blower Room No. 1 - Compressor 2 100 100% 2500 -76 3 0 0 27 　 508
　 8 Blower Room No. 2[5] - Blower 1 108 100% 2500 -76 3 0 0 35 　 3206
　 9 Blower Room No. 2[5] - Blower 2 108 100% 2500 -76 3 0 0 35 　 3206
　 10 Blower Room No. 2 - Compressor 1 100 100% 2500 -76 3 0 0 27 　 508
　 11 Air Compressor 1 100 100% 2500 -76 3 0 0 27 　 508
　 12 Air Compressor 2 100 100% 2500 -76 3 0 0 27 　 508
　 13 Leachate Treatment Plant [6] 75 100% 2500 -76 3 0 0 2 　
　 　 　 　 　 　 　 　 　 　 　 　 　
　 Total Predicted Noise Level, dB(A) 43 　
　 　 　 　 　 　 　 　 　 　 　 　 　
　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　
　 　 　 　 Distance from source to NSR (d2),m Corr. For Corr. For Corr. For Predicted Construction Noise Level By Quarter (dB(A)) Max.
　 　 　 SWL Distance façade Topo 2012 2013 2014 2015 2016 2017 2018 2019 CNL
Activity No. Activity Description dB(A) dB(A) dB(A) dB(A) Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 dB(A)
Landfilling Operation 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 #REF! #REF! 　
Phase 1 6a Deposition and compaction of waste 117 2500 -76 3 0 　 　 44 44 44 44 　 　 　 　 　 　 　 　 　 　 　 　
　 6b Placement of intermediate cover 118 2500 -76 3 0 　 　 45 45 45 45 　 　 　 　 　 　 　 　 　 　 　 　
　 6c Removal of intermediate cover 117 2500 -76 3 0 　 　 44 44 44 44 　 　 　 　 　 　 　 　 　 　 　 　
Phase 2 6a Deposition and compaction of waste 117 2550 -76 3 0 　 　 　 　 44 44 44 44 　 　 　 　 　 　 　 　 　 　
　 6b Placement of intermediate cover 118 2550 -76 3 0 　 　 　 　 45 45 45 45 　 　 　 　 　 　 　 　 　 　
　 6c Removal of intermediate cover 117 2550 -76 3 0 　 　 　 　 44 44 44 44 　 　 　 　 　 　 　 　 　 　
Phase 3 6a Deposition and compaction of waste 117 2600 -76 3 0 　 　 　 　 　 　 43 43 43 43 　 　 　 　 　 　 　 　
　 6b Placement of intermediate cover 118 2600 -76 3 0 　 　 　 　 　 　 44 44 44 44 　 　 　 　 　 　 　 　
　 6c Removal of intermediate cover 117 2600 -76 3 0 　 　 　 　 　 　 44 44 44 44 　 　 　 　 　 　 　 　
Phase 4 6a Deposition and compaction of waste 117 2650 -76 3 0 　 　 　 　 　 　 　 　 43 43 43 43 　 　 　 　 　 　
　 6b Placement of intermediate cover 118 2650 -76 3 0 　 　 　 　 　 　 　 　 44 44 44 44 　 　 　 　 　 　
　 6c Removal of intermediate cover 117 2650 -76 3 0 　 　 　 　 　 　 　 　 44 44 44 44 　 　 　 　 　 　
Phase 5 6a Deposition and compaction of waste 117 2750 -77 3 0 　 　 　 　 　 　 　 　 　 　 43 43 43 43 　 　 　 　
　 6b Placement of intermediate cover 118 2750 -77 3 0 　 　 　 　 　 　 　 　 　 　 44 44 44 44 　 　 　 　
　 6c Removal of intermediate cover 117 2750 -77 3 0 　 　 　 　 　 　 　 　 　 　 43 43 43 43 　 　 　 　
Phase 6 6a Deposition and compaction of waste 117 2900 -77 3 0 　 　 　 　 　 　 　 　 　 　 　 　 43 43 43 43 　 　
　 6b Placement of intermediate cover 118 2900 -77 3 0 　 　 　 　 　 　 　 　 　 　 　 　 43 43 43 43 　 　
　 6c Removal of intermediate cover 117 2900 -77 3 0 　 　 　 　 　 　 　 　 　 　 　 　 43 43 43 43 　 　
All over construction, operation & restoration 7a Site housekeeping 109 2600 -76 3 0 　 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 　
7b Vehicle maintenance 102 2600 -76 3 0 　 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 　
Phase 1 8 Placement of daily cover after 2300 hours 116 2500 -76 3 0 　 　 43 43 43 43 　 　 　 　 　 　 　 　 　 　 　 　
Phase 2 8 Placement of daily cover after 2300 hours 116 2550 -76 3 0 　 　 　 　 43 43 43 43 　 　 　 　 　 　 　 　 　 　
Phase 3 8 Placement of daily cover after 2300 hours 116 2600 -76 3 0 　 　 　 　 　 　 43 43 43 43 　 　 　 　 　 　 　 　
Phase 4 8 Placement of daily cover after 2300 hours 116 2650 -76 3 0 　 　 　 　 　 　 　 　 43 43 43 43 　 　 　 　 　 　
Phase 5 8 Placement of daily cover after 2300 hours 116 2750 -77 3 0 　 　 　 　 　 　 　 　 　 　 42 42 42 42 　 　 　 　
Phase 6 8 Placement of daily cover after 2300 hours 116 2900 -77 3 0 　 　 　 　 　 　 　 　 　 　 　 　 42 42 42 42 　 　
　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　
　 Predicted Noise Level during day and evening time (0700 - 2300 hrs), dB(A) 　 　 37 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 48 48 48 48 48 48 48 48 37 37 49
　 Predicted Noise Level during night-time (2300 - 0700 hrs), dB(A) 　 　 43 43 43 43 43 43 43 43 43 43 43 43 43 43 43 43 42 42 42 42 42 42 42 42 　 43
　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　
　 Cumulative Noise Level during day and evening time (0700 - 2300 hrs), dB(A) 　 44 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 49 49 49 49 49 49 49 49 44 44 50
　 Cumulative Noise Level during night-time (2300 - 0700 hrs), dB(A) 　 43 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 45 45 45 45 43 43 46
　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　
Notes:
[1] Reference was made to the GW-TM for the sound power levels (SWLs) of the fixed plant items that were similar in nature to certain PME in the aforementioned GW-TM.  Comparing with the sound data provided by the operator of the existing SENT Landfill for th
[2] Distance Correction = -10*log(2p(d2)2)
[3] Only one of the two engines of the landfill gas power plant will be operated at any one time.
[4] There will have a total of 5 blowers inside Blower Room No. 1, only 3 of them will be operated at any one time, the other 2 will be for standby purpose.
[5] There will have a total of 4 blowers inside Blower Room No. 2, only 2 of them will be operated at any one time, the other 2 will be for standby purpose.
[6] Reference was made to the EIA Report for "North East New Territories (NENT) Landfill Extension" (Register No.: AEIAR-111/2007) for the SWL of the leachate treatment plant.
[7] In accordance with the existing provision, landfill gas power engines and blowers are housed within enclosed concrete plant rooms.  For a conservative assessment, no attenuation is assumed in the calculation, although the Design Engineer has confirmed tha