Table 13. — Water quality summary - monthly average. 

 [Chemical characteristics in mg. /liter where applicable] 



Ota: Columbia River below Vantage _i>t&. No.: 38 DeBlgnation: g jj^pp 



iiumimy period: I??'* - ?5 - ?^ - ?7 



i -. t'. sh'.ur. is at 5^. ie>/elj u ^^.tiiiicy Kud h^ii-jvesp a? e iuivalent Cp.CO^: 

 -;oaductlvity 1-. .ids'-o.-.'Ii.j'; ?.• '" , .'.t I') 'C. 



1 - 1954 4 - 1957 



2 - 1955 5 - Avg. Monthly at Smyrna 



3 - 1956 



48 



