Appendix G   Noise Monitoring Results
Daytime Noise Monitoring Results at Station NMC1
Date Weather Condition Noise Level for 30-min, dB(A)+ Baseline Noise Level, dB(A) Calculated Construction Noise Level, dB(A) Limit Level, dB(A) Exceedance (Y/N)
Time  L90 L10 Leq
02-Aug-07 Sunny 09:20 61.4 67.2 64.0 72.1 *Note 75 N 1380384.265 5248074.602 2511886.432
08-Aug-07 Fine 13:30 59.7 66.8 63.2 72.1 *Note 75 N 933254.3008 4786300.923 2089296.131
14-Aug-07 Fine 13:30 60.2 67.0 63.8 72.1 *Note 75 N 933254.3008 4786300.923 2089296.131
20-Aug-07 Sunny 09:35 59.9 67.3 64.1 72.1 *Note 75 N 933254.3008 4786300.923 2089296.131
31-Aug-07 Sunny 09:30 60.0 66.8 63.4 72.1 *Note 75 N 1047128.548 5011872.336 2398832.919
Min 59.7 66.8 63.2 60.2 66.9 63.5
Max 61.4 67.3 64.1
Average 60.2 66.9 63.5
Daytime Noise Monitoring Results at Station NMC2
Date Weather Condition Noise Level for 30-min, dB(A)+ Baseline Noise Level, dB(A) Calculated Construction Noise Level, dB(A) Limit Level, dB(A) Exceedance (Y/N)
Time  L90 L10 Leq
02-Aug-07 Sunny 10:00 61.0 65.3 62.9 70.7 *Note 70 N 1258925.412 3388441.561 1949844.6
08-Aug-07 Fine 14:20 57.8 63.4 60.2 70.7 *Note 70 N 602559.5861 2187761.624 1047128.548
14-Aug-07 Fine 14:20 57.8 64.0 60.9 70.7 *Note 70 N 602559.5861 2187761.624 1047128.548
20-Aug-07 Sunny 10:20 58.3 64.5 61.4 70.7 *Note 70 N 602559.5861 2187761.624 1047128.548
31-Aug-07 Sunny 10:15 57.7 64.4 61.0 70.7 *Note 70 N 602559.5861 2511886.432 1230268.771
Min 57.7 63.4 60.2 58.7 64.0 61.0
Max 61.0 65.3 62.9
Average 58.7 64.0 61.0
Daytime Noise Monitoring Results at Station NMC3
Date Weather Condition Noise Level for 30-min, dB(A)+ Baseline Noise Level, dB(A) Calculated Construction Noise Level, dB(A) Limit Level, dB(A) Exceedance (Y/N)
Time  L90 L10 Leq
02-Aug-07 Sunny 10:45 60.8 65.0 62.7 67.5 *Note 70 N 1202264.435 3162277.66 1862087.137
08-Aug-07 Fine 15:00 57.9 63.7 60.4 67.5 *Note 70 N 616595.0019 2344228.815 1096478.196
14-Aug-07 Fine 15:00 57.6 63.7 60.4 67.5 *Note 70 N 616595.0019 2344228.815 1096478.196
20-Aug-07 Sunny 11:00 57.8 64.2 61.1 67.5 *Note 70 N 616595.0019 2344228.815 1096478.196
31-Aug-07 Sunny 11:00 57.9 65.0 61.7 67.5 *Note 70 N 575439.9373 2344228.815 1096478.196
Min 57.6 63.7 60.4 58.6 64.0 61.0
Max 60.8 65.0 62.7
Average 58.6 64.0 61.0
 + - Façade measurement
Bold & Italic value indicated an Limit level exceedance
Note: Measured noise level is less than the baseline noise level.