1200 



1000 



966 



"^ 



S 800 t 



(fl 



:g 



o 



E 600 



♦ 947 



♦ 891 



♦ £75 ♦ 2ZI " ♦ 947 ^22, ♦953 ♦~^«= ♦ 9^2 



978 



♦ 770 



200 



Legend: 770 Grab-Sample Data 



k 



Figure 3.4: Monthly Mean TDS Concentration for 2005 



Derived from Water-Quality Samples or Average Mid-Month Conductance Collected by 



Specific-Condutance Monitor at East Poplar River at the International Boundary 



1800 

 1600 

 J 400 



Shbrt-terrti Objective 



E 



";;'i2oo 



800 



600 



400 



200 



-Water-quality sample derived data 

 Regression derived data 



Figure 3.5: Three-Month Moving Flow- Weighted Average TDS Concentration in 2005 

 for East Poplar River at the International Boundary 



12 



