IV-445 



waterborne pathogenic organisms are as important in restricting 

 recreational use as the floating scum and oil which damage 

 aesthetic quality and cause people to go elsev/here. 



Recreational use is never entirely eliminated. Even around the 

 most polluted estuarine areas can be found an occasional fisherman 

 or boating enthusiast. The people who cannot go elsewhere will 

 use their local estuarine zone in whatever fashion is possible, 

 even if there is a public health danger or the environment is 

 unpleasing. The dangers inherent in such use fall primarily on 

 children, who tend to play in any available puddle, not caring 

 whether it is the local swimming hole or New York Harbor. 



Water Supply 



The use of estuarine waters for municipal and industrial process 

 water supplies is not extensive because its primarily brackish 

 quality makes it difficult to threat adequately and economically. 

 Estuarine waters are used extensively for industrial cooling 

 water use, and waters with susDended solids, high acid or alkali 

 concentrations, or high nutrient concentrations are difficult to 

 use. Such waters clog screens, corrode oiDes, or develop slimes 

 which require added maintenance expense. 



With increasing population and industrial growth in manv coastal 

 areas and increasing demands for potable and industrial process 



