Depth — Sor eel mm NOTBST 20 a 0 7F ae 0.07 0.009 0.68 0.05 0.22 0.03 0.05 0.02 _ - 0.08 0.06 0.02 0.03 0.01 0.02 0.08 0.01 70 9:04 gp |O:0! 0.01 0.007 119 |0:008 0:68 90 9-93 100 9.03 129 {9-003 130] — 140] — 150L_1 129 0.06 0.02 0.14 0.02 0.02 _ 2.9 0.01 _ — — — | 119 — — | 124 <0.04 0-46 0.02 0.02 0.12 0.03 . . eet 0.04 0.4 0.07 0 0.0. 60 9.04 Ad TN / 0,03 0,02 0.2) 0.33 510.01 a1 3.4 6.7 0 IO]oeORO 1.8 40qo3: — l 109 14 1. 0.01 0.03 0.03 0.008 0.01 0.01 0.04 0.4 0.07 0.02 0.03 0.08 0.03 0.03 0.02 0.05 0.01 _ — | 101 _ — | 102 _ — | 703 — — | 105 0.007 0.07 _ 0.05 0.54 Profile location number 105, Fig. 153, Plutonium profile data, Locations 101-103, 129, YVONNE. 109, 114, 124, and 119, Depth — cm -— Surface 10 fo liots8 8.4 0.02 24 1.8 : 14 1.40785070% — _—— -_—— 130 0.02 1 40toe 5-4 50| I) 10 60Ford: M79 (0205 2.5 30 2.8 4.1 5.6 39 (0:09 29 99 }0:237 2.1 100 (Oz8/ LL? 11909-2814 4.8 3.8 1.2 LE 140, — 140 3.0 0,00 — i — 12047422 130} — — 142 — 14] 1.5 L.2 gas 0.53 f0.02 0,03 03 0.0} 0.01 — — ~=-139 — 138 — «137 15 — 0.07 5.0 8.8 71 ~T | O.11 (3.9 0.78 0.02 0.16 — 0.02 _ . 0.40 0.01) — £6 18 0.03 0.04 0.02 0.005 0.02 — 3.0 0.28 \0.26 Ov42 1.3 js) 0.34 2.8) 0.27 “O17 0.03 — — — 136-135 33 ee 2.8 2.8 0.03 0.07 0.02 0.03 0.02 2.4 — : 150 0.30 0.64) 0.01 IN 0,407°0.13 0.50 0.07 0.20 0.03 0.04 0.01 0.007 0.005 19\ 10 —_— — 134 “riot"0 0.02 0,008 0.01 0.04 0.03 0.03 0.02 0.01 0.007 0.005 — «133 — 132 0.01 0.03 _ Profile location number Fig. 154. (0.07 pCi/g). Plutonium profile data, Locations 132-142, YVONNE. Comparison of these data lagoon with mean residence half-times with similar data obtained in 1964 indi- of 3.3 and 4.1 yr, cates that, in addition to physical decay, 60 13 Bi appears to be decreasing at approxi906). mately its radioactive decay rate. Co and Cs are being lost from the 207 Ii-1 8 respectively, while