Date

Start Time

End Time

Weather

Noise level (dB(A)), 5 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-Feb-10

12:35

12:40

Trace rain

74

76

70

Construction works being undertaken was pumping seawater out from the trenches, and only one water pump, submersible (electric) was involved in the works

Helicoptor noise upon landing on the helipad (upper right corner) during 12:39 and 12:50. Traffic noise.

-

9

0.5

RION- NA27 (S/N 00201194)

RION - NC73 (S/N 10786708)

12:40

12:45

Trace rain

73

75

71

-

12:45

12:50

Trace rain

73

74

71

-

12:35

12:50

Trace rain

73

75

71

Average results during 15 min minitoring

21-Feb-10

11:21

11:26

Fine

72

73

71

Steel fixing was conducted and no powered mechanical equipment (PME) was involved in the works.

Traffic noise.

-

16

1.0

RION- NA27 (S/N 00410224)

RION - NC73 (S/N 10786708)

11:26

11:31

Fine

72

73

71

-

11:31

11:36

Fine

72

73

70

-

11:21

11:36

Fine

72

73

71

Average results during 15 min minitoring

28-Feb-10

11:11

11:16

Fine

70

71

68

No construction works.

Traffic noise.

-

24

0.5

RION- NA27 (S/N 00410224)

RION - NC73 (S/N 10786708)

11:16

11:21

Fine

70

72

68

-

11:21

11:26

Fine

70

71

69

-

11:11

11:26

Fine

70

71

68

Average results during 15 min minitoring

RION- NA27 (S/N 00201194)

RION - NC73 (S/N 10786708)