VI-248 



and adjustment. The area considered should extend as far 

 from the coast as wastes are likely to have significant 

 effects. The plan should include designation of uses and 

 the setting of standards of tolerable pollution consistent 

 with the uses. This planning must take into account the 

 total water resources of each region. 



(7) Long-range, properly designed, detailed, quantitative 

 studies of the structure and dynamics of animal and plant 

 communities and their relationship to waste disposal in 

 carefully selected areas should be established and supported. 

 These areas should include those that are relatively little 

 affected, those being affected at an increasing rate and 

 those that are already seriously affected. Some of the 

 studies should be done in designated and protected marine 

 preserves. All should be related to the uses defined in 



the long-range plan. 



(8) Programs of physiological studies to define the 

 tolerable limits of pollution for each of the specific 

 uses envisioned for the zones designated in the long-range 

 plan should be established and supported. 



(9) Programs of systems analysis and model development 

 that will improve prediction of the biological effects 

 of various possible combinations of waste treatments, 

 disposal systems and uses of the receiving water should 

 be instituted and supported. As more data become 



