-2- B. W. Wachholz DOE definition of a "Residence" (or "Agricultural", etc.) Island. DOE definition does not exist. Such In practice, we on our own initiative applied the 40 pCi/gm standard to each quarter hectare because that was the area module which we had adopted for cleanup guidance. This is probably far too fine-grained for land use decisions, wherefor island averages (or, for Engebi, quadrant averages) would make more sense. At the present time, we are reviewing all of the uncertainties in the measurement and calculation of Imp derived transuranics numbers. We expect then to provide to Bill Robison a revised basis for his evaluation of the inhalation pathway. From preliminary conversations neither he nor we expect the effect on dose commitment to be significant. Never the less, I feel obliged to correct our certification documents. That task would be facilitated by the availability of-the definition document referred to above. Now, however, with the radiological cleanup completed, I would suggest that the definition document contemplate use in considering resettlement options rather than cleanup criteria. It might thus deal with island averages or, for large islands or those with wide variations, in some subdivision of an island such as a zone or quadrant. When a definition document is written, I strongly suggest that it incorporate the sense of the second paragraph of the earlier strawman, i.e. 1. 2. The assignment of one of the three designators to an island should not be taken as an unconditional recommendation that the island be so used. Earlier, designators were devised to assist in providing guidance for cleanup decisions. Resettlement decisions should be based upon .all available information of al] nuclides and pathways, upon dose assessments derived therefrom and upon continuing risk-benefit evaluation. Vp Tate Cas Roger Ray, Deputy for Pacific Operations - oy Tye. wl %, . 7 Ae. ‘ . oo Sone AR me woe of owe - . . 1 Fe ss : tla . Me, , tare te 5 a" . 2 . PRR ee me teem em eee w tle . eee 4 . ., a ty eeDoe ‘ NA . oF, soot as, ‘ag . : . : . wy