Figure 3-9 



20 



15 



1 



20 



15 



i 



5 



SACOBA Y Reference Areas 

 Frequency Distribution 



N=11 



J IM 



1 23456789 10 11 

 RPD DEPTH (cm) 



SACO BA Y Disposal Area 

 Frequency Distribution 



N=37 







**■ — I 1 I 



1 23456789 10 11 

 RPD DEPTH (cm) 



Frequency distributions for apparent RPD depths at 

 Saco Bay Disposal Site and reference stations, May 

 1990. 



