Appendix H Noise Monitoring Results
Location : NM6 Customs' Marine Base (Block H of Government Dockyard) Rooftop
Evening time (19:00-23:00 hrs) Noise Monitoring Results on Normal Weekdays
Date Start Time End Time  Weather Noise level (dB(A)), 5 min+ Major Construction Noise Source(s) Observed Other Noise Source(s) Observed Remarks Mean Temp. (¢XC) Mean Wind Speed (m/s) Noise Meter Model / ID Calibrator Model / ID
Leq L10 L90
4-Jun-10 20:53 20:58 Fine 65.4 66.0 64.5  excavation  in process engine noise from barge anchored at nearby piers. - 24.7 <5 m/s B&K 2238 B&K 4231
20:58 21:03 Fine 65.2 65.5 64.5
21:03 21:08 Fine 65.4 65.5 64.5
10-Jun-10
19:01 19:06 Fine 66.6 67.0 66.0 excavation in process and crane in operation cargo transport, engine noise from barge anchored at nearby piers. - 25.4 <5 m/s B&K 2238 B&K 4231
19:06 19:11 Fine 66.7 67.0 66.0
19:11 19:16 Fine 66.6 67.0 66.0
15-Jun-10 19:19 19:24 Fine 66.2 67.0 65.5 excavation in process and crane in operation engine noise from barge anchored at nearby piers. - 29.4 <5 m/s B&K 2238 B&K 4231
19:24 19:29 Fine 66.0 66.5 65.0
19:29 19:34 Fine 66.2 67.0 65.0
22-Jun-10 19:04 19:09 Fine 68.4 69.5 67.0 excavation in process  other construction site nearby - 29.3 <5 m/s B&K 2238 B&K 4231
19:09 19:14 Fine 68.4 69.5 67.0
19:14 19:19 Fine 68.5 69.5 67.0
28-Jun-10 19:55 20:00 Fine 67.7 68.5 66.5 excavation in process  cargo transport, engine noise from barge anchored at nearby piers. - 25.5 <5 m/s B&K 2238 B&K 4231
20:00 20:05 Fine 67.9 68.5 67.0
20:05 20:10 Fine 68.1 68.5 67.0
      Min. 65.2                  
    Max. 68.5                  
       
 + - Façade measurement