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STATE OF WASHINGTON DEPARTMENT OF FISHERIES - EXHIBIT D 



Fresh water 



Fresh water - If natural temperatures of the 

 receiving waters are in excess of 6o F (15.6 C), no additive 

 or use that will cause a higher temperature should be per- 

 mitted. 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 

 "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. 



7. Residues (fats, oils, grease, and 

 floating solids, sludge deposits) 



Marine, estuary and fresh water 

 Oils, tars, grease, animal fats: none 

 allowable. It should be a consistent policy to eliminate 

 oils, floating solids, suspended solids, sludge, and 

 sediment before they can enter the receiving water. Includes 

 earth or other materials from construction projects. 



