Annex B5-3
Noise Assessment for Operation of Landfill Extension 
NSR: A86R1 Planned Residential Development in Area 86
　 　 　 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 -10 -3 9 　 8
　 2 Landfill Gas Power Plant Room - Engine 2 [3] 95 50% 2500 -76 3 -10 -3 9 　 8
　 3 Blower Room No. 1[4] - Blower 1 108 100% 2500 -76 3 -10 0 25 　 321
　 4 Blower Room No. 1[4] - Blower 2 108 100% 2500 -76 3 -10 0 25 　 321
　 5 Blower Room No. 1[4] - Blower 3 108 100% 2500 -76 3 -10 0 25 　 321
　 6 Blower Room No. 1 - Compressor 1 100 100% 2500 -76 3 -10 0 17 　 51
　 7 Blower Room No. 1 - Compressor 2 100 100% 2500 -76 3 -10 0 17 　 51
　 8 Blower Room No. 2[5] - Blower 1 108 100% 2500 -76 3 -10 0 25 　 321
　 9 Blower Room No. 2[5] - Blower 2 108 100% 2500 -76 3 -10 0 25 　 321
　 10 Blower Room No. 2 - Compressor 1 100 100% 2500 -76 3 -10 0 17 　 51
　 11 Air Compressor 1 100 100% 2500 -76 3 -10 0 17 　 51
　 12 Air Compressor 2 100 100% 2500 -76 3 -10 0 17 　 51
　 13 Leachate Treatment Plant [6] 75 100% 2500 -76 3 -10 0 -8 　
　 　 　 　 　 　 　 　 　 　 　 　 　
　 Total Predicted Noise Level, dB(A) 33 　
　 　 　 　 　 　 　 　 　 　 　 　 　
　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　
　 　 　 　 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 1850 -73 3 0 　 　 46 46 46 46 　 　 　 　 　 　 　 　 　 　 　 　
　 6b Placement of intermediate cover 118 1850 -73 3 0 　 　 47 47 47 47 　 　 　 　 　 　 　 　 　 　 　 　
　 6c Removal of intermediate cover 117 1850 -73 3 0 　 　 47 47 47 47 　 　 　 　 　 　 　 　 　 　 　 　
Phase 2 6a Deposition and compaction of waste 117 1850 -73 3 0 　 　 　 　 46 46 46 46 　 　 　 　 　 　 　 　 　 　
　 6b Placement of intermediate cover 118 1850 -73 3 0 　 　 　 　 47 47 47 47 　 　 　 　 　 　 　 　 　 　
　 6c Removal of intermediate cover 117 1850 -73 3 0 　 　 　 　 47 47 47 47 　 　 　 　 　 　 　 　 　 　
Phase 3 6a Deposition and compaction of waste 117 1850 -73 3 0 　 　 　 　 　 　 46 46 46 46 　 　 　 　 　 　 　 　
　 6b Placement of intermediate cover 118 1850 -73 3 0 　 　 　 　 　 　 47 47 47 47 　 　 　 　 　 　 　 　
　 6c Removal of intermediate cover 117 1850 -73 3 0 　 　 　 　 　 　 47 47 47 47 　 　 　 　 　 　 　 　
Phase 4 6a Deposition and compaction of waste 117 1850 -73 3 0 　 　 　 　 　 　 　 　 46 46 46 46 　 　 　 　 　 　
　 6b Placement of intermediate cover 118 1850 -73 3 0 　 　 　 　 　 　 　 　 47 47 47 47 　 　 　 　 　 　
　 6c Removal of intermediate cover 117 1850 -73 3 0 　 　 　 　 　 　 　 　 47 47 47 47 　 　 　 　 　 　
Phase 5 6a Deposition and compaction of waste 117 1800 -73 3 0 　 　 　 　 　 　 　 　 　 　 47 47 47 47 　 　 　 　
　 6b Placement of intermediate cover 118 1800 -73 3 0 　 　 　 　 　 　 　 　 　 　 48 48 48 48 　 　 　 　
　 6c Removal of intermediate cover 117 1800 -73 3 0 　 　 　 　 　 　 　 　 　 　 47 47 47 47 　 　 　 　
Phase 6 6a Deposition and compaction of waste 117 1650 -72 3 0 　 　 　 　 　 　 　 　 　 　 　 　 47 47 47 47 　 　
　 6b Placement of intermediate cover 118 1650 -72 3 0 　 　 　 　 　 　 　 　 　 　 　 　 48 48 48 48 　 　
　 6c Removal of intermediate cover 117 1650 -72 3 0 　 　 　 　 　 　 　 　 　 　 　 　 48 48 48 48 　 　
All over construction, operation & restoration 7a Site housekeeping 109 1600 -72 3 0 　 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 　
7b Vehicle maintenance 102 1600 -72 3 0 　 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 　
Phase 1 8 Placement of daily cover after 2300 hours 116 1850 -73 3 0 　 　 46 46 46 46 　 　 　 　 　 　 　 　 　 　 　 　
Phase 2 8 Placement of daily cover after 2300 hours 116 1850 -73 3 0 　 　 　 　 46 46 46 46 　 　 　 　 　 　 　 　 　 　
Phase 3 8 Placement of daily cover after 2300 hours 116 1850 -73 3 0 　 　 　 　 　 　 46 46 46 46 　 　 　 　 　 　 　 　
Phase 4 8 Placement of daily cover after 2300 hours 116 1850 -73 3 0 　 　 　 　 　 　 　 　 46 46 46 46 　 　 　 　 　 　
Phase 5 8 Placement of daily cover after 2300 hours 116 1800 -73 3 0 　 　 　 　 　 　 　 　 　 　 46 46 46 46 　 　 　 　
Phase 6 8 Placement of daily cover after 2300 hours 116 1650 -72 3 0 　 　 　 　 　 　 　 　 　 　 　 　 47 47 47 47 　 　
　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　
　 Predicted Noise Level during day and evening time (0700 - 2300 hrs), dB(A) 　 　 41 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 53 53 53 53 41 41 53
　 Predicted Noise Level during night-time (2300 - 0700 hrs), dB(A) 　 　 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 47 47 47 47 　 47
　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　
　 Cumulative Noise Level during day and evening time (0700 - 2300 hrs), dB(A) 　 41 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 53 53 53 53 41 41 53
　 Cumulative Noise Level during night-time (2300 - 0700 hrs), dB(A) 　 33 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 47 47 47 47 33 33 47
　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　
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