These unit dose estimates could then be weighted depending on projected utilization by the inhabitants. This approach might be particularly well suited to estimating dose from the ingestion pathway. D. IMP Calibration The Advisory Group's questions on the calibration of IMP were not adequately answered at the meeting. Dr. Gilbert agreed to contact EG&G and Eberline and appropriate Nevada Operations staff for further information. E. Onshore-Offshore Sampling The presence of Pu/Am in marine areas has been Sugqested. The Advisory Group would like an opportunity to review these data. F, Apparent Sampling Inadequacies The Advisory Group is concerned about certain apparent sampling or/and analytical inadequacies. coconuts, seafood, air, and water These inctude subsurface soils, that might be used for drinking It is recognized that some of these data may be sufficient for dose assessment purposes and that it only appears to be inadequate because the Advisory Group is not aware of it. Certification The Advisory Group sensed that the issue of certification was causing problems to both DNA and DOE. It is recommended that questions regarding certification be identified and resolved soon to avoid misunderstanding and problems occurring at the completion of the cleanup. An area of potential problem is the lack of definition of terms in the certification. Such terms as “diligent effort," "all radioactive debris," "unlikely that