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
06-Feb-15 Fine 10:40 64 72 68 <5m/s 62.9   75 N
12-Feb-15 Fine 10:35 62 66 64 <5m/s 62.9   75 N
18-Feb-15 Fine 10:45 63 67 66 <5m/s 62.9   75 N
24-Feb-15 Fine 10:48 61 69 65 <5m/s 62.9   75 N
  Min 61 66 64        
  Max 64 72 68        
  Average -- -- 67        
                 
 
               
               
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
06-Feb-15 Fine 11:28 65 73 69 <5m/s 66.3   70 N
12-Feb-15 Fine 11:30 64 68 67 <5m/s 66.3   70 N
18-Feb-15 Fine 11:30 64 69 67 <5m/s 66.3   70 N
24-Feb-15 Fine 11:45 63 69 67 <5m/s 66.3   70 N
  Min 63 68 67      
  Max 65 73 69      
  Average -- -- 68        
             
   
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.