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STATE OF WASHINGTON DEPARTMENT OF FISHERIES - EXHIBIT D 

 that causes the extinction coefficient to 

 become larger than the standard values as given in the 

 above references. 



In the deeper waters (mid-depth and bottom 

 samples) Jackson Turbidity Units should be less than 25 

 attributable to materials resulting from man-made 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) 

 Water temperature should not be altered more 



than 5/^ in the range between 40 F (4.4 C) and 60 F (15.6 C). 

 When natural conditions are above 68 F (20 C) man-made 

 activity should not result in discharge raising the average 

 water temperature in the dilution area more than 1%. 



6. Dissolved Inorganic Substances 

 Inorganic materials especially the ionic forms 



of heavy metals are deleterious to fish and other aquatic 

 organisms. None should be discharged to the receiving 

 waters that will create acute or chronic toxicity or 

 significant ecological change. Reference: p: 423-426 

 "The Physiology of Fishes": and Water Quality Criteria, 

 2nd Ed., Pub. 3A, 1963 Calif. Water Qual. Control Bd. 

 Control of abnormal enrichment from phosphates, etc. 



