. I. i. / 3 Subsequent to scraping the sidewall to avoid any possible contamination 7” 4 AdeAL Sed from the digging process. , d The 0-5 cm sample was collected froma . surface area about 25 cm on a side. The area was then expanded by about 10 cm on each side and cleared to a depth of 5 cm. The upper surface (1-2 cm) of this enlarged area (35 cm x 35 cm) was then cleared to ensure that no surface soil, or soil from a preceding increment, had fallen onto the next increment to be sampled. The next sample was then taken from the entire depth of the increment (i.e., 5-10 cm) from an area about 25 cm square within the enlarged region (35 cm x 35 ecm). This procedure was repeated until the final increment of 40-60 cm had ‘been collected. A total of approximately 500-900 ¢ of soil was collected for each profile increment. The soil fine powder. samples were dried, screened, and ball milled into a Samples were then analyzed by gamaa spectroscopy to deter- mine the !37cs concentration and by wet chemistry procedures to determine the concentration of 2%sr and in some cases 239+240p,, | 24) gs and 241 py, Gamma spectroscopy of the soil samples for 137¢— was accomplished using Nal Crystals and high resolution, nium diode systems. Strontium - 90, 239+240p,, solid state germa- 24) ag, and 241 py were analyzed by current state of the art wet chemistry procedures by Eberline Corporation. The radionuclide concentration for the profile for 0-5 cn, 0-10 cm, 0-15 cm, 0-25 cm, 0-40 cm, and 0-60 cm, were calculated using equal weights for each 5 cm increment. The island average for each “depth profile (i.e., 0-5 cm, 0-25 cm; 0-40 cm, etc.) were calculated by averaging the results for each profile taken on the island. The results are summarized in Appendix G. 5a oe