Ox 





TP 

 W37 



Water Quality Criteria 



1- 



5 



Report of the 



National Technical Advisory Committee 



to the 



Secretary of the Interior 



O 



APRIL 1, 1968 

 WASHINGTON. D.C. 



MARINE 

 BIOLOGICAL 

 LABORATORY 



LIBRARY 



WOODS HOLE, MASS. 

 W. H. 0. I. 



FEDERAL WATER POLLUTION CONTROL ADMINISTRATION 



Reprinted by U.S. Environmental Protection Agency 



