- 56 - 



8000 

 7000 

 6000 

 5000 t 

 E 4000 

 3000 - 

 2000 

 1000 - 



U-fjlfu 



Aj^ 



y 3 



-qf 



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



SAMPLE DATE RANGE 



— ■- C728D 



—a— C728C 



— ♦— C728B 



C728A 



1/31/93 



Figure 38. — TDS in till piezometers C728A, C728B, C728C, and C728D, 



450 



400 

 350 



_, 300 

 E 250 f 



§ 200 J 



^ i 



w 150 



100 -■ 



50 



V 



7£ 



/♦■• 



. a, ,-^X /v. , . ~.„-0.. c- 



y--axy-Ojj-njy AJ n3 



5/25/79 



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



SAMPLE DATE RANGE 



-* C728A 



■P C728B 



■♦ C728D 



- C728C 



1/31/93 



Figure 39. —Chloride in till piezometers C728A, C728B, C728C, and C728D, 



