11 



Figure 3.4: TDS Concentration for 2001 Grab Samples from East Poplar River 

 at International Boundary 



1100 



«> mfih 



750 



♦ 1030 



♦ 1030 



♦ 986 



♦ 965 



♦ 978 



♦ ddd 



♦ 968 



♦ 929 ♦934 



♦ 881 ♦ 881 



Figure 3.5: Three-Month Moving Flow-Weighted TDS Concentration for East 

 Poplar River at International Boundary 



1600 



