Daytime Noise Monitoring Results

Station NM5

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

04-Sep-13

15:48

16:18

Cloudy

61

63

58

Drill Rig, Welding Machine and Dump Truck

Traffic noise

-

25

0.7

RION-NL31 (S/N 00410224)

RION-NL73  (S/N 10997142)

10-Sep-13

10:55

11:25

Sunny

60

62

58

Drill Rig and Welding Machine

Traffic noise

-

31

0.5

RION-NL31 (S/N 00410224)

RION-NL73  (S/N 10997142)

16-Sep-13

11:10

11:40

Sunny

63

65

60

Drill rig, Welding machine, Excavator and Dump Truck

Traffic noise

-

29

0.6

RION-NL31 (S/N 00410224)

RION-NL73  (S/N 10997142)

26-Sep-13

13:15

13:45

Sunny

60

62

58

Drill rig, Welding machine, Excavator and Dump Truck

Traffic noise

-

29

0.7

RION-NL31 (S/N 00410224)

RION-NL73  (S/N 10997142)

Min.

60

Max.

63