ENEWETAK FISSION PRODUCT DATA BASE PROGRAM DOE/ERSP PROCEDURE NO.28 APPROVED: I. DATE DRAFTED: 14 March 1979 20 March 1979 by John D. Stewart (ERSP Manager) General This procedure details a uniform method of taking soil profiles for LLL dose assessment of the fission products present on Enewetak Atoll. Il. Responsibility The Eberline Laboratory Manager is respnsible to the DOE/ERSP Site Representative for implementing these procedures to assure soil data quality equal to that previously taken by LLL in the Pacific Islands. TL Procedure A. Tools and equipment 1. B. One gallon or 1/2-gallon cans with standard sample aluminum labels andlids (6 per profile). 2. Scoops 3. Shovels 4. Hatchets 5. Tape measure or calibrated stick marked in centimeters - 100 em long. 6. Backhoe to dig 36-inch deep trench 7. Soil samplers field notebook 8. Short pointing trowel 9. Personnel: 1 sampler, 1 data logger, and 1 packer 10. Glass filament tapes 11. PRS-1 and SPA-2 Probe (yr/h meter) Method 1. Offset from survey stake location upwind to avoid disturbing stake. 2. Dig trench to a depth of 100 em minimum unless solid rock or water is encountered. Have backhoe operator use care to prevent major disturbance of the side wall to be sampled. 3. Use shovel and square up side wall to be sampled to at least 70 em deep. 4. Log the hole at each sample level with the ur/h meter and recordin field notes. 5. Starting at top of soil column take 6 samples of at least 1000 ee of soil at each of the following levels: 0-5 em, 5-10 em, 10-15 em, 15-25 em, 25-40 em, and A-28-1