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

02-Dec-09

10:55

11:25

Fine

70

72

67

Major noise from ASD site (continuous, breaker, drilling noise), hammering noise from opposite recycling shop (occasional), concreting in progress, two mobile cranes were working DSD site

Traffic noise

-

20

0.4

RION-NA27 (00201194)

RION-NC73 (10786708)

08-Dec-09

11:30

12:00

Sunny

68

69

66

Noise from ASD cite (cutting, hammering)

Traffic noise

-

19

0.3

RION-NA27 (00201194)

RION-NC73 (10786708)

14-Dec-09

10:55

11:25

Fine

69

71

66

Breaker noise

Traffic noise

-

20

0.8

RION-NA27 (00201194)

RION-NC73 (10786708)

24-Dec-09

09:35

10:05

Fine

71

72

69

Major noise from ASD site (continuous, breaker, and drilling), significant oise from other DSD site at Marble Road (generator), no apparent noise come from HATS DSD site (mobile cranes were working)

Traffic noise

-

24

0.3

RION-NL31 (00410224)

RION-NC73 (10997142)

30-Dec-09

09:40

10:10

Cloudy

74

76

68

Dominant noise source from Highway Department at Jane Road (breaker), significant noise from ASD site (cutting, breaker, and drilling), noise from nearby recycling company, no apparent noise from HATS DSD site (mobile cranes work)

Traffic noise

-

17

1.0

RION-NA27 (00201194)

RION-NC73 (10786708)