Figure 3.4: Monthly Mean TDS Concentration for 2004 

 Derived from Water-Quality Samples or Average Mid-Montli Montlily Conductance Data 

 Collected by Specific-Conductance Monitor at East Poplar River at International Boundary 

 1200 



1000 



800 



600 



200 



u 947 ♦ 957 



♦ 1060 



♦ 1020 



» 9 8 7 ♦ 99 



♦ 945 



♦ 977 



♦1Q2 2 O1000 



♦ 872 



♦ 730 



Water-quality samples were obtained in May, June, July, and September. 



Figure 3.5: Three-Month Moving Flow-Weighted Average TDS Concentration 

 for East Poplar River at International Boundary 



5-1200 



w^lOOO 



■g 800 



600 



H 400 



00 0> O •>- (N CO 



fs. fs* CO 00 CO 00 



00 05 o t- c\j CO 



7- c\j CO ■* in 



naJcQcQaJcOflJnlalaJcocacoaJcOcQajaicaaJnJconlaJnJaJcOnjaJcoasra 



12 



