374 



Pacific Ocean 



The followinq is a summary of eleven research reports prepared for 

 EPA/ORP on the 1974, 1975, and 1977 surveys of the Farallon Islands 

 radioactive waste disposal sites. 



(1) Dayal, R., I. W. Duedall, M. Fuhrmann, and M. G. Heaton, 

 "Sediment and Water Column Properties of the Farallon Islands 

 Radioactive Waste Dumpsites," September 1979. 



Dayal et al have analyzed the sediments collected at the site for 

 geochemical properties which might affect the behavior of radionuclides 

 in the marine environment. Dayal found that the nuclides tend to adsorb 

 to the sediment rather than remaining suspended in the water column. 



This report is important in understanding the role of such 

 parameters as pore water diffusion and also bioturbation for nuclide 

 mobilization. The sediments at the site are being characterized in order 

 to evaluate chemical interactions of radionuclides with the sediments and 

 to predict potential transport pathways for radioactivity in the oceans. 



(2) Interstate Electronics Corporation," Operations Report - A 

 Summary of the Farallon Islands SOO Fathom Radioactive Waste 

 Disposal Site," U.S. Environmental Protection Agency, Technical 

 Note ORP-75-1, December 1975. 



This previously published report has been circulated extensively; it 

 summarizes the operational aspects of EPA's early survey work at the 

 Farallon Islands. 



(3) Interstate Electronics Corporation, "Operational Plan, Phase I, 

 1977 Farallon Island Survey," lEC 446SP 550. 



This operational plan describes the logistics involved in the first 

 phase of our 1977 survey, during which we performed surface ship trawling 

 and coring operations for geochemical, radiochemical, and biological 

 analyses. Participants are listed. 



(4) Interstate Electronics Corporation, "Operational Plan, Phase 

 II, 1977 Farallon Island Survey," lEC 446SP 551. 



The plan presents the logistical plans for the second phase of the 

 1977 Farallon Islands survey. EPA used the Canadian manned submersible 

 PISCES VI to make bottom observations and to obtain sediment cores in 

 close proximity to radionuclide containers for subsequent radiochemical 

 and geochemical analyses. Participants are listed. 



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