Depth — em suroce apa 20 278 MDa M50 /9201 4010-04 79 {9:04 a 0.21 046 ie (0% 0.14 0.02 0.01 4.1 . 1" 18 0.7 3.4 :\ r1% 0.01 0.07 0.03 — 0,06 0.02 0.05 _ 0.07 ~—~0..01 199 {0-03 0.02 00 0.02 0.05 120 {0-003 130] — 140} — 150 L_1 129 0.03 — — L 124 0.4 0.008 0.08 0,02 0.08 0.04 0.01 _— — 105 _— — 1 103 109 114 119 0.40:04 0.007 0.54 0,03 0.03 0.68 0:02 0.03 Vai 0705 0.68 0.007 119 |0:008 1.3 0.009 0.01 0.01 1.9 0.03 0.07 30 0:0! 99|0:03 a nT _ — 102 0,02 0.03 _ — l 101 Profile location number Fig, 153. Plutonium profile data, Locations 101-103, 105, 109, 114, 119, 124, and 129, YVONNE. Depth — cm Surf . LA 10 0 Tees 07857 a4 2 eS 18 8.8 e 15 3.2 1.8 0.03 0.20 0.64 2.8 “OMo+b 110 3:0 «5.6 «0.91 0.03 0.0} 0.11 3.9 1.7 1.2 0.007 0.02 0.01 ca —— l +137 Mo, Weoporos 54 2:5 39 10:09 99 (0:59 2:9 2:1 450 (0:05 100 0.13 19/023 127 1120974 130} — 40} — 159 LL 142. om 0 o\a] 1.4 20 Oo Itoral {0 aN omeOB 2.8 4.1 5 1.2 fo.o2 [0.01 0.92 0.04 0.01 4.8 3.8 4 LE 3.0 0700 oY fs — i — — — l Nl +141 «+140 — | #4139 0.005 0.01 wv — — | «2»138 0.03 0,03 0,07 0.02 0.03 = o.30] 0.40 0.03 0.04 0.02 0.005 0.02 uf — — ! #4249136 605.0)La, 2.8 3.0 \0.26 3 0,40°° 0.13 «(9.78 0.02 6.50 (0.28 0942 1a 0.370 2.8 0,27 0.03 a — — | +135 “O=t7 0.16 eo — — l #429134 0.07 0.02 0.07 0.008 0.01 0.04 0.02 0.01 0.03 0.03 0.02 NS — — | 429133 0.01 0.007 0.005 0.03 cs — — | 132 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, respectively, while cates that, in addition to physical decay, 137 80 a an d Cs are being lost from the 2075; appears to be decreasing at approximately its radioactive decay rate. II-18 905,