14 



Figure 3.9: Five- Year Moving Flow-Weighted Boron Concentration for East Poplar 

 River at the International Boundary 



Year 



Figure 3.10: Daily Dissolved Boron Concentration, 1982 to 1996; East Poplar River 

 at the International Boundary (regression-derived data) 



Dec-81 Dec-83 Dec-85 Dec-87 Oec-89 Dec-91 Dec-93 Dec-95 



Dec-82 Dec-84 Dec-86 Dec-88 Dec-90 Dec-92 Dec-94 Dec-96 



