7. There were discussions of techniques for taking profile samples centered primarily on advantages of backhoe versus auger, During the Erie test area investigation 40 sample sites were completed in about 10 days using the backhoe. This was accomplished in spite of the delay imposed by operating in anti-centasination ciothing as required by rad-safe procedures. It was concluded that the backhoe was probably faster and provided more precise sampling. 8. The chair requested participants to address the northern half of Runit as three distinct areas, the cactus crater area, a central area, and the Fig/Quince area, and what sampling should apply to each. The consensus was that the €actus area, showing high levels of subsurface contamination should be treated as is the Fig/Quince area, i.e,, one-half distance yes-no sampling in the vicinity of locations showing high subsurface contamination.. The background history of the central area provides no reason to suspect high subsurface contamination in that area, Therefore, sampling in this area should be limited to a few confirmatory samples sites in areas not covered by the available data. (This probably amounts to something on the order of 20 sites or less.) 9, The ejecta (lip) of cactus €rater presents a special problem. Past history and available data tend to indicate that there may be high subsurface contami nation below the pre detonation surface level, the ejecta. This level is now buried under This condition lead to a brief explanation of the cratering operation and the possible extent of the area to be covered by the entombment. Consensus was that this area should be considered after a better knowledge of the extent of the area to be covered is gained, If the area is to be covered by cement/soil mixture no further sampling is needed. If it is not to be covered, then sampling should be done to confirm presence or absence of 4