- 59 - 



8000 ; 



I 



7000 - 



I 

 6000 T 



5000 



£f 4000 



3000 J 



2000 -- 



1000 



4 



/s 



A N 



/ \ / 



, w% 



\ N* * 



f^^rb cld-- on-tita^-tn ann-^M^x^v^ 



H H 



■ C719 



-a--— C 718 

 --•— C712B 



7/29/78 6/28/80 5/29/82 4/28/84 3/29/86 2/27/88 1/27/90 12/28/91 

 SAMPLE DATE RANGE 



Figure 43. — TDS in piezometer C712B and till piezometers C718 and C719. 



C712B 



250 



i 



200 j 



I 



If 150 t 



■on | 



£ 100 ; 



50 | 



A 



■ — ■ 



5/25/79 10/6/80 2/18/82 7/3/83 11/14/84 3/29/86 8/11/87 12/23/88 5/7/90 9/19/91 



SAMPLE DATE RANGE 



Figure 44. — Chloride in piezometer C712B. 



