Table 1. Activity (fCi/g ash) (a) of 238 239,240 Pu and Pu in the sediments of the Great Miami River above and below Miamisburg, Ohio. Sample Ash Wt 38 239, 24054 Table 2. Activity (pCi/gq ash) of 2 Pu and in the sediments of the canal and ponds near Mound Laboratory. Dry Wt 238, 239,240, 239,240, Rip Rap Bridge c.90 0.6+0.2 |/6.640,6 0.09 Rip Rap Bridge 0.99 0.5+0.2/1.020,2 0.50 Sample Mad River— Stanley Avenue 0.91 2.04+90.4/6.5 40,6 0.31 North Pond Mad River— Stanley Avenue 0.93 0.940,2 (7.1 + 0.6 0,13 A B Cc Mad River— 0.92 2.0+0.4 16.0 4 0.7 0.33 0.8km S&S, Chautauqua Bridge Medway Road 0.88 760 4 46 7 >109 Franklin 0.99 80 + 10 <6 >13 Sediment Core Canal North Canal _J (a) The + value is 1 o counting error, When the counting error is >100%, the concentration is recorded as <2 0, A B Cc Ash Wt Dry Wt 238. 0,93 0,94 0.93 0.19 + 0.02 0.15 + 0,02 0.2420,02 0.93 0.95 0.96 0.96 48047 92.04 2.7 91.04 2.8 89.542,8 508 509 239,240, | £0,002 =0,002 £0,006 -+ ----