536 



9 



ocean floor in the designated dumps ite and adjacent areas. NOAA did 

 locate large numbers of objects in these areas; however, side-scan 

 sonar signals can not distinguish radioactive waste containers from the 

 multitude of other industrial wastes, dredge materials, and building 

 demolition rubble disposed of in the site over the last 50 years or 

 more. The side-scan data did provide information to determine where to 

 collect sediments and biota for detecting radioactive materials that 

 might have leaked from containers and to look for possible radioactive 

 containers with underwater television. 



During ly81, EPA also gathered all the information possible 

 regarding disposals of radioactive materials in Massachusetts Bay from 

 interviews with the people involved. These interviews included Mr. 

 George Perry and Mr. John Santangelo, who were co-owiiers of Crosstoads 

 Marine Disposal, the only company licensed by the Atomic Energy 

 Commission for disposals in the Bay. We also interviewed staff at the 

 Massachusetts Institute of Technology, which was a source of nuclear 

 wastes, and researched their files, as well as those of the Army Corps 

 of Engineers and the Coast Guard. The most useful records were the 

 licensee files retained by the Nuclear Regulatory Conmission. 



EPA used its ocean survey vessel, ANTELOPE, for conducting the 

 Massachusetts Bay radiological survey in September 1982. The main 

 emphasis of this survey was to collect a large number of sediment, 

 marine biota, and water samples to detect the presence of any 

 radioactivity that might be attributed to past dumping. We also used 



