53f 



MARVIN ALLUM 



the levels of SWL fell to zero^ or nearly so, in all of 

 the strike-affected areas when production ceased. 



"The waste-sample study revealed the most 

 toxic components of pulp and paper mill v/astes are asso- 

 ciated with chemical-pulping processes. It was also found 

 that many of the Individual waste streams were toxic (i.e., 

 caused 20^ abnormality) at or below SWL levels once con- 

 sidered as 'background' --3 ppm and less. This implies that 

 the absence of high SWL levels in areas receiving pulp 

 mill wastes does not rule out the mill as a source of 

 damaging wastes." 



