Soil Remedial Action Guidelines surface Soil Guideline Radionuclide (pCi/g above background) Am-—241 Pu--241 Pu-- 239,-240 Pu -238 20 800 100 100 U-238 Th-230 Ra--226 Cs—137 790 300 15 80 Natural uranium sr-90 | H-3 (pCi/ml Soil moisture) Los Alamos 79 100 5,200 Reference Healy Healy Healy Healy 1977 1977 1977 1977 Gilbert et al. 1983 Gilbert et al. 1983 Gilbert et al. 1983 Gilbert et al. 1983 Healy et al. 1979 Healy et al. 1979 pendix B oF DRO_831