Date

Start Time

End Time

Weather

Noise level (dB(A)), 30 min

Major Construction Noise Source(s) Observed

Other Noise Source(s) Observed

Remarks

Temp. (°C)

Wind Speed (m/s)

Noise Meter Model / ID

Calibrator Model / ID

Leq

L10

L90

07-Jan-11

09:35

10:05

Fine

66

68

64

Rock Excavation

Road Traffic noise from Shek Pai Wan Road and loading activties in the contraction site near Gas center

N.A

10.9

<5

ONO SOKKI LA-5110 S/N: 72700154

ONO SOKKI SC-2110 S/N: 00461

13-Jan-11

13:42

14:12

Fine

66

68

64

Rock Excavation and grouting

Road Traffic noise from Shek Pai Wan Road and loading activties in the contraction site near Gas center

N.A

12.9

<5

ONO SOKKI LA-5110 S/N: 72700154

ONO SOKKI SC-2110 S/N: 00461

19-Jan-11

13:42

14:12

Fine

66

68

64

Rock Excavation and grouting

Road Traffic noise from Shek Pai Wan Road and loading activties in the contraction site near Gas center

N.A

15.3

<5

ONO SOKKI LA-5110 S/N: 72700154

ONO SOKKI SC-2110 S/N: 00461

25-Jan-11

14:14

14:44

Fine

65

67

63

Welding

Road Traffic noise from Shek Pai Wan Road and loading activties in the contraction site near Gas center

N.A

14.3

<5

B&K 2238 S/N : 2684503

B&K 4231 S/N: 265616

31-Jan-11

09:42

10:12

Fine

73

74

70

Soil excavation

Road Traffic noise from Shek Pai Wan Road and loading activties in the contraction site near Gas center

N.A

13.1

<5

B&K 2238 S/N : 2684503

B&K 4231 S/N: 265616