Appendix I  Impact Daytime Construction Noise Monitoring Results           
         
Daytime Noise Monitoring Results at Station NMS2 - Seaview Crescent Tower 1      
         
Date Weather Condition Noise Level for 30-min, dB(A)# Averaged Wind Speed (m/s) Baseline Noise Level, dB(A) Calculated Construction Noise Level, dB(A) Limit Level, dB(A) Exceedance (Y/N)
Time  L90 L10 Leq
2-Jul-14 Sunny 10:38 63 67 66 <5m/s 62.9   75 N
7-Jul-14 Fine 10:34 63 68 66 <5m/s 62.9   75 N
17-Jul-14 Cloudy 10:40 62 70 67 <5m/s 62.9   75 N
23-Jul-14 Sunny 10:35 63 68 66 <5m/s 62.9   75 N
29-Jul-14 Sunny 11:00 64 68 66 <5m/s 62.9   75 N
  Min 62 67 66        
  Max 64 70 67        
  Average -- -- 66        
 
               
               
Daytime Noise Monitoring Results at Station NMS3B - Site Boundary of Site Office (WA2)      
             
Date Weather Condition Noise Level for 30-min, dB(A)# Averaged Wind Speed (m/s) Baseline Noise Level, dB(A) ^ Calculated Construction Noise Level, dB(A) Limit Level, dB(A)** Exceedance (Y/N)
Time  L90 L10 Leq
2-Jul-14 Sunny 11:28 59 64 63 <5m/s 66.3   70 N
7-Jul-14 Fine 11:15 60 65 63 <5m/s 66.3   70 N
17-Jul-14 Cloudy 11:38 61 67 64 <5m/s 66.3   70 N
23-Jul-14 Sunny 11:20 60 63 65 <5m/s 66.3   70 N
29-Jul-14 Sunny 12:00 62 66 65 <5m/s 66.3   70 N
  Min 59 63 63      
  Max 62 67 65      
  Average -- -- 64        
   
Remark:          
 # A correction of +3dB(A) was made to the free field measurement.        
* Façade measurement.          
^ Averaged baseline noise level recorded at NMS3 Ho Yu College is adopted.        
** Limit Level of 70dB(A) applies to education institutes while 65dB(A) applies during school examination period.