180-1 



160- 



TUFTS POrNT ACTIVITY SITE 

 (TONALS) 



• SOUTH-WEST 



» SOUTH-EAST 



o NORTH-EAST 



^ NORTH-WEST 



140- 



120- 



100- 



80- 



60- 



t 



I I I I n I I 



.01 



180-1 



160- 



.1 

 FREQUENCY (kHz) 



1.0 



Figure 3. Average source level of noise generated from a 

 construction site in the Beaufort Sea. 



TUFTS POINT ACTIVITY SITE 

 (TRANSIENTS) S oo^ 



o SOUTH-WEST 



^ SOUTH-EAST 



• NORTH 



10.0 



140- 



120- 



100- 



30 



60- 



t 



.01 



.1 

 FREQUENCY (kHz) 



1.0 



10.0 



Figure 4. Maximum source levels of transient noise generated 

 from a construction site in the Beaufort Sea. 



H-12 



