i'uTTiber of induatrisE with up-.-^t? dlrchnrge, treated an-i untreated 



From references (3lj) (36) (6) 

 Organic wastes consuming oxygen. 



Table 33.— Columbia River regulated flow characteristics. 



^pom period of 19la-1953 

 mnlanan discharge In Dec. or Jan. 



94 



