- 57 - 



1.6 

 1.4 

 1.2 t 



1 



0.8 

 0.6 

 0.4 

 0.2 



•A 





V 



/ u u 



\n\ 



4 







 5/25/79 



2/18/82 11/14/84 8/11/87 5/7/90 



SAMPLE DATE RANGE 



-» — C728A 



-a — C728B 



♦ C728C 



C728D 



1/31/93 



Figure 40. — Boron in till piezometers C728A, C728B, C728C, and C728D, 



T 



758 

 756 

 754 



E 



d 752 i 



£ 750 | 



748 j 



746 i 



744 i- 



c&^.^r'- 



OO ooc* 



VVU t 



U Lfr 



P 



5/25/79 2/18/82 11/14/84 8/11/87 5/7/90 



SAMPLE DATE RANGE 



-* C728D 



■° C728C 



-• C728B 



< C728A 



1/31/93 



Figure 41. — Water levels in till piezometers C728A, 

 C728B, C728C, and C728D. 



