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1 ' SUMMARY OP CONFERENCE 



2 Administration, Northwest Region, to visit the pulp mills 



3 to review the waste treatment and control recommendations 



4 of the joint study. Based upon information received 



5 during the conference and during the succeeding two weeks, 

 5 the conferees reached the following conclusions: 



7 "1. Sulfite waste liquor discharged into 



g the waters of Puget Sound from the four largest sulfite 



9 mills (Georgia Pacific Corporation at Bellingham, Scott 



10 Paper Company and Weyerhaeuser Company at Everett, and 



11 Rayonier Inc. at Port Angeles) produce concentrations of 



12 sulfite waste liquor well in excess of ten parts per 



13 million throughout large areas of Puget Sound in the 



14 vicinity of Bellingham, Everett and Port Angeles. 



15 "Bioassay studies conducted by the joint 

 Ig Federal-State project showed that sulfite waste liquor 

 ly concentrations in excess of ten parts per million were 

 Ig damaging to oyster larvae and English sole eggs, and, 



15 in some cases, caused adult and juvenile oyster mortality. 



20 To reduce these damages and provide minimum protection 



21 of fish and shellfish during their most sensitive period 



22 of development, the report recommended that sulfite waste 



23 liquor concentrations not exceed ten parts per million 



24 in the surface fifty feet of water depth outside an initial 



25 dispersal zone. 



