13 



Figure 3.7: Boron Concentration for 1996 Grab Samples from East Poplar 

 River at the International Boundary 



2.2 



1.8 - 



1.6 



1.4 



1.2 



-♦-2- 



♦ 19, 



♦-f89* 19 ♦ 1 9 ^ 1 89 



',♦19 



1 83 



' ♦ 1 82 L 



♦ 1 84 



♦ 1 77 , 



♦ 15. 



♦13 ♦IS 



4 i^^ 



1.9 



03- 14- 14- 25- 02- 10- 15- 15- 15- 15- 15- 26- 15- 13- 19- 

 Jan Feb Mar Apr May Jun Jul Jul Jul Jul Jul Sep Oct Nov Dec 



Figure 3.8: Three-Month Moving Flow-Weighted Boron Concentration for 

 East Poplar River at the International Boundary 



•Grab Sample Data 



■ Regression Derived Data 



