15 



Figure 3.8: Boron Concentration for 2001 Grab Samples from East Poplar River at 

 International Boundary 



2.2 



» 1 .99 



-<> 2.01 



^1.8 



-§- ♦ 1.65 

 S 1.6 



♦ 1.83 



» 1 7A 



♦ 1.85 



♦ 1.86 



♦ 1.77 



♦ 1.72 



I 1.4 



1.2 



♦ 1.43 



♦ 1.48 



♦ 1.32 



0.8 



^ 



Figure 3.9: Three-Month Moving Flow-Weighted Boron Concentration for East Poplar 

 River at International Boundary 



