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STATE OF WASHINGTON DEPARTMENT OF FISHERIES - EXHIBIT E 

 5 attributable to materials in fresh-water streams resulting 

 from man-caused activities. 



Dredging operations should be planned to 

 take into account the seasonal cycles of flow and turbidity 

 so as not to exceed the proposed standards. 



5. Temperature F(c) 

 Marine and estuary 



Water temperature should not be altered 

 more than 5^ in the range between 40 F (4.4 C) and 60 F 

 (15.6 C). 



Fresh water 



Fresh water - If natural temperatures of 

 the receiving waters are in excess of 60 F (15.6 C), no 

 additive or use that will cause a higher temperature 

 should be permitted. The optimal temperature range of 

 fresh-water areas for salmonids is 45 F (7.2 C) to 60 F 

 (15.6 C). 



6. Dissolved Inorganic Substances 

 Marine, estuary and fresh water 

 Inorganic materials especially the ionic 



forms of heavy metals are deleterious to fish and other 

 aquatic organisms. None should be discharged to the re- 

 ceiving waters that will create acute or chronic toxicity 

 or significant ecological change. Reference: p: 423-426 



