3.00 



2.50 



2.00 



1.50 



1.00 



0.50 



Figure 3.8: Daily Boron Concentration, 1990 to 2003; 

 East Poplar River at the International Boundary (regression-derived data) 



3.2.5.3 Other Water-Quality Variables 



Table 3.1 contains the multipurpose water-quality objectives for the East Poplar River at International 

 Boundary, recommended by the International Poplar River Water Quality Board to the IJC. The table 

 shows the number of samples collected for each parameter and the number of times over the course of 

 the year that the objectives were exceeded. In the table, multiple replicate samples collected during the 

 annual quality control exercise are treated as a single sample, but where an objective was exceeded in a 

 replicate sample, this is charged against the single sample noted. As the table shows, all parameters were 

 within the appropriate objectives. 



16 



