| Restricted Hours Noise Monitoring Results -- Daytime on Public Holiday | |||||||||||||
| Station M3, Kwan Yick building | |||||||||||||
| 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 | |||||||||||
| 06-Jun-10 | 09:49 | 10:04 | FIne | 64 | 66 | 62 | Panel trench bentonite slurry monitoring | Traffic Noise | Average results during 15 min monitoring | 26.0 | 0.3 | RION- NL31 (S/N 00983400) | RION - NC73 (S/N 10786708) |
| 13-Jun-10 | 10:27 | 10:42 | FIne | 66 | 67 | 64 | Panel trench bentonite slurry monitoring | Traffic Noise | Average results during 15 min monitoring | 28.0 | 0.2 | RION- NL31 (S/N 00983400) | RION - NC73 (S/N 10786708) |
| 20-Jun-10 | 10:05 | 10:20 | Sunny | 63 | 66 | 65 | Panel trench bentonite slurry monitoring | Traffic Noise | Average results during 15 min monitoring | 31.0 | 0.5 | RION- NL31 (S/N 00983400) | RION - NC73 (S/N 10786708) |
| 27-Jun-10 | 17:44 | 17:59 | Cloudy | 65 | 67 | 64 | Bentonite monitoring for D-wall construction, Maintenance work for chisel | Traffic Noise | Average results during 15 min monitoring | 26.0 | 0.2 | RION- NL31 (S/N 00983400) | RION - NC73 (S/N 10786708) |
| Min. | 63 | ||||||||||||
| Max. | 66 | ||||||||||||
| Restricted Hours Noise Monitoring Results -- Evening time | |||||||||||||
| Station M3, Kwan Yick building | |||||||||||||
| 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 | |||||||||||
| 04-Jun-10 | 22:45 | 23:00 | Cloudy | 67 | 69 | 65 | Operating bentonite filitering plant and hydraulic excavator | Traffic noise | - | 26.6 | <5 | B&K 2238 S/N : 2684502 | B&K 4231 S/N: 2385180 |
| 07-Jun-10 | 22:45 | 23:00 | Fine | 66 | 68 | 64 | Operating bentonite filitering plant and hydraulic excavator | Traffic noise | - | 25.5 | <5 | B&K 2238 S/N : 2684502 | B&K 4231 S/N: 2385180 |
| 15-Jun-10 | 22:45 | 23:00 | Cloudy | 66 | 67 | 64 | Operating bentonite filitering plant and hydraulic excavator | Traffic noise | - | 29.3 | <5 | B&K 2238 S/N : 2684502 | B&K 4231 S/N: 2385180 |
| 21-Jun-10 | 22:45 | 23:00 | Cloudy | 66 | 68 | 64 | Operating bentonite filitering plant and hydraulic excavator | Traffic noise | - | 29.6 | <5 | B&K 2238 S/N : 2684502 | B&K 4231 S/N: 2385180 |
| Min. | 66 | ||||||||||||
| Max. | 67 | ||||||||||||