RELATED PROJECTS Basin Studies Soil from a drainage basin located approximately 11 km southeast of Frenchman Flat, NTS, an area of known plutonium contamination, was sampled as a preliminary phase of a project tc investigate movement of plutonium with surface water drainage. are shown in Fig. 2. The sampling pattern and results These results do not show movement or concentra- tion of plutonium within the basin. Fortymile Canyon Study The Fortymile Canyon Study was initiated to investigate the possibility that radioactivity deposited on the NTS might be carried to the offsite area by surface runoff. Two water and sediment collectors have been emplaced in the wash of Fortymile Canyon, which drains a large portion of the western NTS. Due to the lack of sufficient rainfall, no water or sediment samples have been collected. completed in October, March, 1975. Soil sampling was 1974, and sample analyses were completed in Results from these samples show no definitive patterns of radionuclide movement or concentration as a result of hydraulic transport. All samples were analyzed by NaI(Tl) gamma counting and selected samples were analyzed by Ge(Li) counting. Neither method detected gamma emitters other than background levels of 1376 and 40, sampling array and plutonium results are shown in Fig. 3. The The sediment collectors will remain in place until samples can be collected and analyzed. Vegetable and Fruit Sampling Study Concurrently with the above studies, the radionuclide content of fruits and vegetables grown in home orchards and gardens near the NTS was investigated. No detectable quantities of plutonium were found in vegetable material collected near the NTS; however, 239 Pu concentrations possibly as great as 24 pCi/kg wet weight were detected in some samples 86