59 



< 



Q- 



co 



e8 



Q 

 O 

 CO 



2,000 



1,500 



1,000 



500 



POLISHING POND - S04 



POLISHING POND - Na 



1 ,000 



800 



600 -sr 



400 



200 



MMMMMMMMM 

 83| 84 I 85 I 86 I 87 I 88 I 89 I 90 I 91 



Figure 7.6 Lagoon Water Quality Data for Sodium, Sulphate and 

 Polishing Pond Volume, 1983 to 1991. 



140 



_ 120 



E 



:r 100 



80 



o 



CO 



oa 60 



CO 

 CO 



40 



20 



POLISHING POND-K 

 POLISHING POND-Sr 



1,000 



800 



600 -^ 



400 



200 



M M M M 



83 I 84 I 85 I 86 



M M M M M 



87 I 88 I 89 I 90 I 91 



Figure 7.7 Lagoon Water Quality Data for Potassium, Strontium and 

 Polishing Pond Volume, 1983 to 1991. 



