The magnitude of this project required the support and cooperation of many groups and individuals. The authors wish to thenk the Project Officer, 5. R. Tompkins, for his sincere interest and help during the entire course of the work. They are alro indebted to the following for their effective contributions to the project. Radiological(VSNRDL) 1. Fourteen aedditione] investigators from the Chemical Technolosy Division participated in the field phases of the preject. R. R. Soule, P, E, Zigman, W. B, Lane, and E, GC. Evans III assumed responsibilities as team leaders, 2. The #ngineering Division supplied craftsmen and technicians for field work in addition to services in the devclopment und procurement of instruments. P.A, Covey, D.F. Covell, LTJG K.F. Johnson, USNR, and Ww. L. Snapp rade significunt contributions in the field. 3. The Instruments branch of the Nucleonics Division assisted extensively in the pre-operation testing of buoy identifiers and produced, installed, and serviced the transmitter system used. Two engineers, H. L. Gottfried and F. A. Rhoads, made signific.nt contributions in the labor:tory and in the field, 4. The Analytical and Standards Branch of the Chemical Technoloy Division provided much help in the treatment end analysis of sunples. we. H. Shipman and J. R. Lai mde significant contributions. 5. The following Froject 2.6a personnel gave valuable assistunce in the field: W. J. Heiman, R. Cole, J. F. restaner, 5, Singer, and M, J. Nuckolls, 6. In addition to an effective contribution in the field, J. M. 7. GCG, A, Adams of Chemical Physics Brench, Chemical Technology McCampbell of Military Evaluations Group assisted in particle size analyses, Division ussisted in ev. lustiondf particle size data. 8. 0D. D. Cole of Procurement Liaison anid Materials Control Division assumed responsibility for materia] control in the field and made a significant contribution in handling return shipments cf sumples and equipment. 9. CDRH. L. leichter, USN, LCDR F. J. Sisk, USN, and LCDR J. Cady, USN, projects officers at USNRUL, contributed extensively to invesvigating 7 pee oO INS Le wo ” ACKNOWLEDGEMENTS