4 BROOKHAVEN NATIONAL LABORA KUT ASSOCIATED UNIVERSITIES. INC. UPTON, LI. +) OCT 29 1976 P/2O ROUTING SLIP N.Y. 11973 All SEE ME INIT DIREZTOR Admin. fae “stat SAFETY & ENVIRONMENTAL PROTECTION DIVISION PaQbos PR: ber 22"19% oe ON Sain sf bent te C USERDA P.O. Box 29939 Honolulu, Hawaii 96820 ; po ar ee. Mr. J. Stanley, Director Pacific Area Support Office ve, REMARKS: Dear Bill: The following trip report covers the activities of the, "environmental survey team", which accompanied Dr. Knudsen's medical group on its quarterly survey of the Northern Marshalls, September 17 through October 3, 1976, Jan Naidu (BNL), Vic Nelson, and I rendezvoused in Honolulu on Sept: ember 16 and proceeded to Kwajalein via MAC on September 17, We were _sur- Los € een prised to find that the Liktanur was scheduled to leave within a few hours “ after our arrival, rather than on Saturday, September 18. Ted Murawski aniticipated all of our needs, however; and we had no trouble accomodating the change. Vic Nelson was the lead man on environmental sample collections, while Jan Naidu and I concentrated on the external radiation measurements, We did "control" studies at Wormej and Wotje Islands, Wotje Atoll (September 19) and at Ailuk and Bigen Islands, Ailuk Atoll (September 20). This information should provide a good data base for comparison with environmental survey re- sults from significantly contaminated atolls in the Northern Marshalls. We were fortunate not to have been significantly affected by the, "political problems" which plagued the Medical Team at Utirik Atoll (September 21-23). Surveys were done at Utirik, Eorukku, and Aon Islands, and we feel that sufficient data was obtained on the external radiation environment to reliably assess the incremental exposure rate from residual Bravo fallout at Utirik. At Rongelap Atoll (September 24-29) surveys were conducted at Naen and Kabelle Islands in the North, Eniaetok Islands on the eastern side, and of course the village island, Rongelap, in the southern sector, The exposure rates on Rongelap Island also appear to be sufficiently uniform that we can determine reliable external gamma dose rates to the residents, REPOSITORY Doe/;PASo COLLECTION Deefwv L0a& " ERpA*3" BOX No. (0— MED, Pr. CAHAied FOLDER Bre THyele 1212 Fo. RMATION OPERATOR (516) 345-2123