-28- 



Table 6. Chemical characteristics of Blue River, near Blue, Oklahoma, as 



determined by four examinations made in the months of March, April, 

 June and July, 1955.^ 



Average 

 PP". 



Range 

 ppn. 



Calcium 



Magnesium 



Sodium 



Chloride 



Bicarbonate (HCO3) 



Carbonate (CO3) 



Hardness as CaCOs: Total 



Noncarbonate 



Specific conductance 

 (raicromhos at 25°C) 



PH 



1 From unpublished records of the U. S. Geological Survey. 



