| Appendix I Impact Daytime Construction Noise Monitoring
Results |
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| Location
: NM1A (168 Shek Kwu Lung Village G/F- Façade) |
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| Day
time 07:00-19:00 hrs Normal Weekdays Impact Noise Monitoring Results |
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Measured
Noise Level for 30-min, dB(A) |
Baseline Noise Level,
dB(A) |
Corrected Construction
Noise Level, dB(A) ** |
Limit Level, dB(A) |
Exceedance (Y/N) |
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| Date |
Start Time |
Leq |
L10 |
L90 |
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| 3-Apr-12 |
13:08 |
60.3 |
61.5 |
58.0 |
64.2 |
60.3 |
75 |
N |
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| 14-Apr-12 |
11:30 |
60.1 |
62.0 |
56.5 |
64.2 |
60.1 |
75 |
N |
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| 20-Apr-12 |
13:24 |
60.1 |
61.7 |
56.3 |
64.2 |
60.1 |
75 |
N |
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| 26-Apr-12 |
10:28 |
60.1 |
62.0 |
57.0 |
64.2 |
60.1 |
75 |
N |
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Corrected
Noise Level dB(A) |
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Average |
60.2 |
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Max |
60.3 |
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Min |
60.1 |
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| Location
: NM2 (38 Ha Wun Yiu G/F - Free Field) |
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| Day
time 07:00-19:00 hrs Normal Weekdays Impact Noise Monitoring Results |
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Measured
Noise Level for 30-min, dB(A) |
Baseline Noise Level, dB(A)* |
Corrected Construction
Noise Level, dB(A) ** |
Limit Level, dB(A) |
Exceedance (Y/N) |
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| Date |
Start Time |
Leq* |
L10* |
L90* |
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| 3-Apr-12 |
11:25 |
65.6 |
66.5 |
60.5 |
68.1 |
65.6 |
75 |
N |
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| 14-Apr-12 |
10:05 |
65.6 |
66.5 |
64.0 |
68.1 |
65.6 |
75 |
N |
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| 20-Apr-12 |
10:09 |
66.8 |
68.4 |
63.2 |
68.1 |
66.8 |
75 |
N |
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| 26-Apr-12 |
10:15 |
66.8 |
67.5 |
64.5 |
68.1 |
66.8 |
75 |
N |
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Corrected
Noise Level dB(A) |
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Average |
66.2 |
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Max |
66.8 |
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Min |
65.6 |
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| * +3dB(A) Façade effect correction included |
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| **
Construction noise level is only calculated when Measured noise level (Leq)
> Baseline noise level. |
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| If Measured noise level < Baseline
noise level, Corrected noise level = Measured noise level |
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| Appendix I |
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| Location
: NM3 (Wong Shiu Chi Middle School Rooftop - Façade) |
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| Day
time 07:00-19:00 hrs Normal Weekdays Impact Noise Monitoring Results |
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Measured
Noise Level for 30-min, dB(A) |
Baseline Noise Level,
dB(A) |
Corrected Construction
Noise Level, dB(A) ** |
Limit Level, dB(A)# |
Exceedance (Y/N) |
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| Date |
Start Time |
Leq |
L10 |
L90 |
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| 3-Apr-12 |
14:00 |
63.2 |
65.0 |
61.5 |
64.8 |
63.2 |
70 |
N |
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| 14-Apr-12 |
13:30 |
64.7 |
66.0 |
60.5 |
64.8 |
64.7 |
70 |
N |
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| 20-Apr-12 |
10:38 |
65.3 |
67.0 |
63.5 |
64.8 |
55.7 |
70 |
N |
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| 26-Apr-12 |
11:24 |
63.3 |
65.0 |
60.0 |
64.8 |
63.3 |
65 |
N |
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Corrected
Noise Level dB(A) |
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Average |
62.8 |
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Max |
64.7 |
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Min |
55.7 |
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| Location
: NM4 (Uptown Plaza Block 4 Rooftop - Façade) |
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| Day
time 07:00-19:00 hrs Normal Weekdays Impact Noise Monitoring Results |
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Measured
Noise Level for 30-min, dB(A) |
Baseline Noise Level, dB(A) |
Corrected Construction
Noise Level, dB(A) ** |
Limit Level, dB(A) |
Exceedance (Y/N) |
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| Date |
Start Time |
Leq |
L10 |
L90 |
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| 3-Apr-12 |
14:43 |
64.5 |
66.5 |
62.0 |
67.4 |
64.5 |
75 |
N |
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| 14-Apr-12 |
14:00 |
64.3 |
66.5 |
62.5 |
67.4 |
64.3 |
75 |
N |
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| 20-Apr-12 |
10:42 |
64.8 |
66.5 |
62.5 |
67.4 |
64.8 |
75 |
N |
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| 26-Apr-12 |
13:05 |
64.1 |
66.0 |
61.5 |
67.4 |
64.1 |
75 |
N |
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Corrected
Noise Level dB(A) |
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Average |
64.4 |
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Max |
64.8 |
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Min |
64.1 |
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| #
- Limit Level of 70dB(A) applies to education institutes while 65dB(A)
applies during school examination period. |
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| **
Construction noise level is only calculated when Measured noise level (Leq)
> Baseline noise level. |
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| If Measured noise level < Baseline
noise level, Corrected noise level = Measured noise level |
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| Appendix I |
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| Location
: NM5 (The Paragon Clubhouse Rooftop - Façade) |
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| Day
time 07:00-19:00 hrs Normal Weekdays Impact Noise Monitoring Results |
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Measured
Noise Level for 30-min, dB(A) |
Baseline Noise Level, dB(A) |
Corrected Construction
Noise Level, dB(A) ** |
Limit Level, dB(A) |
Exceedance (Y/N) |
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| Date |
Start Time |
Leq |
L10 |
L90 |
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| 3-Apr-12 |
10:28 |
62.1 |
63.5 |
60.0 |
65.2 |
62.1 |
75 |
N |
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| 14-Apr-12 |
10:30 |
62.3 |
64.0 |
60.5 |
65.2 |
62.3 |
75 |
N |
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| 20-Apr-12 |
9:57 |
65.0 |
66.5 |
62.5 |
65.2 |
65.0 |
75 |
N |
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| 26-Apr-12 |
13:13 |
62.3 |
64.0 |
60.0 |
65.2 |
62.3 |
75 |
N |
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Corrected
Noise Level dB(A) |
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Average |
63.1 |
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Max |
65.0 |
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Min |
62.1 |
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| Location
: NM6 (PLK Tin Ka Ping Primary School near the entrance - Free Field) |
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| Day
time 07:00-19:00 hrs Normal Weekdays Impact Noise Monitoring Results |
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Measured
Noise Level for 30-min, dB(A) |
Baseline Noise Level, dB(A)* |
Corrected Construction
Noise Level, dB(A) ** |
Limit Level, dB(A)# |
Exceedance (Y/N) |
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| Date |
Start Time |
Leq* |
L10* |
L90* |
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| 3-Apr-12 |
15:35 |
65.3 |
66.5 |
64.5 |
64.5 |
57.6 |
70 |
N |
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| 14-Apr-12 |
11:00 |
65.8 |
66.5 |
64.0 |
64.5 |
59.9 |
70 |
N |
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| 20-Apr-12 |
13:11 |
62.7 |
64.4 |
60.1 |
64.5 |
62.7 |
70 |
N |
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| 26-Apr-12 |
11:05 |
65.9 |
67.0 |
64.5 |
64.5 |
60.3 |
70 |
N |
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Corrected
Noise Level dB(A) |
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Average |
60.5 |
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Max |
62.7 |
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Min |
57.6 |
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| Remarks |
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| * +3dB(A) Façade effect correction included |
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| #
- Limit Level of 70dB(A) applies to education institutes while 65dB(A)
applies during school examination period. |
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| **
Construction noise level is only calculated when Measured noise level (Leq)
> Baseline noise level. |
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|
| If Measured noise level < Baseline
noise level, Corrected noise level = Measured noise level |
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| Appendix I |
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| Location
: NM7 (Riverain Bayside Switch Room Rooftop - Façade) |
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| Day
time 07:00-19:00 hrs Normal Weekdays Impact Noise Monitoring Results |
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Measured
Noise Level for 30-min, dB(A) |
Baseline Noise Level, dB(A) |
Corrected Construction
Noise Level, dB(A) ** |
Limit Level, dB(A) |
Exceedance (Y/N) |
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| Date |
Start Time |
Leq |
L10 |
L90 |
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| 3-Apr-12 |
9:49 |
58.3 |
59.5 |
56.5 |
61.5 |
58.3 |
75 |
N |
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| 14-Apr-12 |
9:43 |
59.3 |
60.5 |
56.5 |
61.5 |
59.3 |
75 |
N |
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| 20-Apr-12 |
9:47 |
61.1 |
63.1 |
58.7 |
61.5 |
61.1 |
75 |
N |
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| 26-Apr-12 |
9:30 |
58.8 |
60.0 |
56.5 |
61.5 |
58.8 |
75 |
N |
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Corrected
Noise Level dB(A) |
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Average |
59.5 |
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Max |
61.1 |
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Min |
58.3 |
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| Remarks |
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| **
Construction noise level is only calculated when Measured noise level (Leq)
> Baseline noise level. |
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| If Measured noise level < Baseline
noise level, Corrected noise level = Measured noise level |
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