43 



— ,400 



300 



200 



Q 



o 



100 



MMMMMMMMM 

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



Figure 6.4 Cookson Reservoir Water Quality Data for Sodium, 1983 to 1991. 



MMMMMMMMM 

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



Figure 6.5 Cool<son Reservoir Water Quality Data for Cliloride, 1983 to 1991. 



