where 235y is the atoms of 235U in the observed sample. Conversion of the 235y values to specific activities was accomplished using a 235y decay constant of 1£8558 x 10715 min7!, 0.0558+2.0%, respectively. Values defined for U,, and U, c were 137.8340.3% and Individual measurement results have been arranged by sampling site and vegetation type. The specific activities of 238py, 239°240py, and 2*1am and observed uranium atom ratios may be found in Appendix I. Appendix II contains the results of the *3°U_ calculations. Associated soil isopleths and sampling stake numbers, when° known, have also been included with each sample entry. 82 Gb