12. Discussion resumed on 5 October. The chair outlined the two incremental sampling techniques discussed and proposed adoption of 20 cm sampling increments with a dgscrete 5 cm sample to be taken from each 20 cm increment. This technique should suffice for characterization and may also meet some certification requirements. 13. The proposal was accepted. The chair requested the group consider depth to which sampling should extend. Consensus indicated that a depth of 120 cm generally will suffice but that the option to go deeper should be left to field personnel. It may be particularly. desirable to go to greater sampling depths in areas of ground zeros, in burp or mound areas, and in ejecta areas near egetus crater. The backhoe may not suffice for some of these depths (greater than 10 feet) and other equipment may be required. 14. Discussion reverted to the sampling grid to be used for characterization. Mr. Church proposed, for consideration, a 10 meter grid for the “hat” areas (Fig/Quince and Cactus Crater areas), and a wider spaced grid for the "clean" area in between. Several members indicated their support for the half distance technique for initial exploration with grid size to be decided later based on data obtained from initial efforts. This leap to extensive discussion of desire for data versus reasonable expenditure of resources and purpose and extent of characterization. The chair maintained that characterization should be limited to determining the extent of known subterranean pockets and the extent of surface contamination areas. The effort should not extend