40-60 em. Adjust area of each layer taken to include sufficient volume for 1000 ee of sample. Clear vegetation on top of soil column to expose soil. Exclude all rocks and roots greater than 3/8-inch in sample layers. As the 1st layer is taken, expand area of level to extend about 1 foot beyond the edge of next area to avoid cross-contamination of next layer due to falling side walls. To assure correct site location on can, do not premark cans or labels before arriving at site location. Data logger will be responsible to mark labels with the following site data: a. Island identifier: FJ (for example). b. Island stake location: 24N16 (e.g.). ec. Date of sample: 2/4/79 (e.g.). d. Cm depth: 0-5 (e.g.). e. Short note of site condition: (e.g., raining, water level 90 cm, rock at 40 em, windrows or other information that may be pertinent). Data logger will be responsible to record in Soil Sampler's Log on a daily basis: 9. C. a. Islands sampled. b. Stakes sampled. e. General notes about weather and conditions of sites. d. Disposition of cans shipped to Enewetak for processing. e. Names of soil sampling crew. Do not let backhoe operator get more than a few holes ahead of soil sampling teams. 10. The holes will be backfilled prior to completing the island.* 11. All samples taken will be transported to a holding area for shipment to laboratory on Enewetak for processing as soon as possible. Analysis - EIC 1. On-Site Sample Preparation. The sample preparation at Enewetak Laboratory will include recording all important information such as location, date, sample size, weights, drying, homogenizing and ball milling. Initially the 100-meter profiles will be processed for full analysis to provide expedient data for LLL for dose assessment, then the 50-meter samples will be processed for future analysis if required. oa . : . *og° Constraints of time and tides made this step difficult. holes backfilled. A-28-2 . All islands were visited later and open