Table 1 Quality Control Results - Blanks - 1968 cy (Values in dpm/sample + 1 std. Deviation) Fe~55 Sr-89 Sr-930 January 42+67 7,544.6 0+ .5 February 24459 -—- March 624137 -- April 0+156 -- May 0+86 June 2r-95 Cs-137 Ce-141 Ce-144 Pu-238 344.05 Pu-239 Stable Pb 2.54.9 -- 13473 1.543 .4 0,541.5 3 ,0+6 .0 -- -- 2,043.0 23.6412 .4 0+6 .4 _ -- 6 .744.1 Ox .03 1.4+13 cata -- 5.442 .5 -- O+1.1 028.8 -— -- O+3 .3 -29%.05 96272 _ 1.6244 .3 3.14+6.1 -= -- 0+1.9 374.05 July -—— 7.1420.1 0.541.3 0.947 .2 0,240.4 -- 2.1+2.8 36411 -12+ .10 -- August -- 042 .3 0.540.4 9.344.4 0.744 .0 -- 2.041 .6 -29+ .07 ,O5+ .05 -— September -—- O+1.5 O+ 0.4 2.843 .0 1.5+0.5 -- 1.6+1.6 -41+ .06 0 +.03 -- October -- -- 0+ 2.3 5 .240.7 -—~ 3 .0+6 .6 21+ .03 0 +.02 -03 November -- -- 0.14+0.8 5.7#8.8 0.940.5 -- 0.94+2.8 .06+ .03 0 +.03 -- December -- -- 0.943 .2 13.5416 .1 0.140.5 -- 2294270 -li+ .09 0 +.07 0.0 indicates sample lost indicates no analysis — 044 ,02 -- L -—- -18+.01 -09+ .03 -—- Os .04 O+ .03 ~ 03+ .02 -- 0 + -- L .03