287 



EDWARD J. GRUBLE 

 at all is a credit to the perseverance of the Federal 

 Water Pollution Control Administration and its staff. 



These findings establish beyond any reason- 

 able doubt that sulfite waste liquor discharged by pulp 

 mills into the marine environment of Puget Sound is 

 pollution having a deleterious effect on the marine biota 

 of the receiving waters. 



This report does not stand alone. It is 

 substantiated by more than 25 reports and studies compiled 

 by various State, Federal and independent agencies during 

 the past 20 year s . 



As long ago as 1946, investigation into 

 the decline of the native oyster industry of the State of 

 Washington revealed damaging effect of sulfite waste 

 liquor to the Olympia oyster. This investigation, of some 

 18-1/2 months duration, is documented in Washington Depart- 

 ment of Fisheries Biological Report 49A and was conducted 

 by Donald L. McKernan, Vance Tartar and Roger Tollefson. 

 It established an undeniable correlation between oyster 

 mortalities and low concentrations of sulfite waste liquor. 



In 1957, Technical Bulletin 22 entitled, 

 "An Investigation of Pollution in Northern Puget Sound", 

 released by the State Pollution Control Commission reported 

 that: 



