11-36 



While the bulk of these will be in the cooler Darts of the Nation, 

 12 will be in the South Atlantic, r.ulf, and Caribbean Regions where 

 water temperatures are hiqh, qreater volumes must be used to achieve 

 nroDer cooling, and the increase in water temperature through the 

 power nlant nav tie sufficient to cause environmental damane. 



Waste pi sposal 



The concentration of copulation and industrial devlonment in the 

 estuarine zone has led naturally to the use of estuarine waters for 

 removal of the waste materials of man's civilization from his 

 Immediate vicinitv. It is unlikely that cities were built on the 

 coastline with any conscious consideration of the use of the estua- 

 rine environment for waste disnosal, yet it has hannenei that this 

 use has become one of the ma.ior uses of estuarine waters and the 

 associated land. Virtually all of the cities and industries in the 

 coastal counties disnose of v/astes either directly or indirectly 

 into the estuarine zone. 



Linuid waste discharges to estuarine systems include domestic waste 

 products, industrial waste materials of all deqrees of chemical 

 complexity and sonhistication, used coolino water with its thermal 

 load, and storm runoff. These wastes affect the estuarine environ- 

 ment in different ways and can eliminate other uses. 



Liauid wastes are not the only concern. The uss of the estuarine 

 shoreline for refuse dumns and land fills results in considerable 



