ABSTRACT 



A study of the physical and chemiccil characteristics 

 of water was made in the Wenatchee River Basin during 1954, 

 1955 and 1956 to provide a basis for comparison to deter- 

 mine the effect of impoundment on water quality in relation 

 to the preservation of fish resources. 



The waters were characterized by an extremely low con- 

 tent of suspended £Uid dissolved matter, a very low hardness 

 and alkalinity, a practically neutral pH, and a saturation 

 with dissolved oxygen. Seaisoncil variations were noted in 

 most constituents. 



The Wenatchee River is capable of conserving and sup- 

 plying waters of excellent physical and chemical quality. 



