Tne 137Cs data compare very well with the NVO-140 values (40-70 pCi/g), while the 60Co

levels are lower than expected.

For comparison, the NVO-140 60Co values decay-corrected to

May 1979 would range from 2-60 pCi/g. Since the 241Am concentrations were all below 4 pCi/g,

it is not likely that the average TRU concentrations would exceed 40 pCi/g (TRU/2414Amratio in
NVO-140 is 9).

LACROSSE CRATER

KEY:

CRATER Lip
APPROXIMATE BOUNDARIES
OF FIRST DOZED PILE
Lin

APPROXIMATE BOUNDARIES
OF 2500 CY STOCKPILE
OCEAN

CACTUS
CRATER

SIDEWALL
SAMPLED
11 MAY 79

STOCKPILE
SAMPLED
17 MAY B9

SOIL/DEBRIS HAULING
ROADWAYS

LAGOON

FIGURE 8-15-1. NORTH END OF RUNIT SHOWING ROADWAYS, LACROSSE AND CACTUS
CRATERS, AND APPROXIMATE BOUNDARIES OF CRATER LIP MATERIAL

B-15-2

Select target paragraph3