~ee So . ~ ee ce eet men ie we one TABLE 3 CONCENTRATION OF PLUTONIUM IN THE D SERIFS WATER SAMPLES Sample D1 Volume (L) 300m D 2 Surface D2 D2 D 6 D 6 D 9 D9 300m 1550m Surface Bottom Surface 900m py239*240 410001. Pu238anm/10001 py 238 spy 39+240 66 11.2 41.5 0.6 + 0.1 0.054 + .009 300 4.2 + 0.4 a.3 + 0,1 0.071 + .023 86 10.5 + 1.1 0.3 + 0.2 0.024 + .017 84 100 88 100 74 8.2 8.2 15.9 97.4 8.7 + + + + + 0.9 0.7 3.0 6.8 0.7 0.4 0.2 0.7 2.4 0.3 + 0.2. +0.1 + 0.4 + 0.8 + 0.1 0.050 0.023 0.044 0.025 0.037 + + + + + .025 .013 .025 .008 0.016 Mean = (0.041 + .017) 90059535 —