V-270 



increasing quantities of nitrogen and phosphorus 

 into the Bay and its tributaries. Brehmer . . . points 

 out that the use of the Potomac River as the final 

 treatment stage in the Washington disposal system 

 releases 8,000,000 pounds of phosphorus and 

 25,000,000 pounds of nitrogen annually into the 

 estuary. Doubling of this quantity is predicted within 



30 years, and the estuary is already badly damaged 



II 



.... 



Thermal pollution is ^ery rapidly increasing as power companies 

 move to the large volumes of low-corrosion water of the estuaries. 

 There is a complex of some 16 relatively small plants in existence 

 now with rapid Bay-wide proliferation proposed for the near future. 

 The new seven stations planned are designed to produce about 

 1,000,000 KW each and to use about 1,000,000 gallons of water per 

 minute for condenser cooling, with a rise of 10-T2°F. Some will 

 be twice that large. 



