DETERMINATION OF THE RATIO OF TOTAL TRANSURANICS TO
AMERICIUM IN SOIL ON ISLAND WILMA
DOE/ERSP TECH NOTE NO. 2.14
DATED: April 1978
AUTHOR: B. Friesen, DRI
Determination of one mean ratio for Wilma was made using laboratory results from soil samples
taken at four locations including two composites and two depths. Reference Tech Note 2.2-A for
assumptions made in computing the mean ratio and associated error.
2.43 to 4.50. The ratios are as listed below.
The range of values is from
The Wilma data has a mean ratio of 2.73 with a standard deviation of 0.19*; these values were used
in computing total transuranics.
Estimates and upper bounds were not computed because of insufficient data; indicated 24lam
concentrations do not warrant collection of more data.
Depth, em
Loeation
0
0-S-4
2-N-2
4-N-6
8-N-8
10
20
Nat
mR
wat
mt
wat
“Re
3.76
3.17
2.43
2.70
3.48
2.57
2.71
2.60
§.58
2.70
2.75
2.65
2.63
2.54
3.49
2.65
**
2.60
2.53
4.50
3.35
2.84
3.29
2.83
DETERMINATION OF THE RATIO OF TOTAL TRANSURANICS TO AMERICIUM IN
SOIL ON ISLAND MARY
DOE/ERSP TECH NOTE NO. 2.15
DATED: May 1978
AUTHOR:B. Friesen, DRI
Determination of one mean ratio for Mary was made using laboratory results from soil samples
taken at five locations including two composites and three depths. Reference Tech Note 2.2-A for
assumptions made in computing the mean ratio and associated error.
2.33 to 6.09. The ratios are as listed below.
The range of values is from
The Mary data has a mean ratio of 2.94 with a standard deviation of 0.42*; these values were used in
computing total transuranics.
Estimates and upper bounds were not computed because of insufficient data; indicated 24] am
concentrations do not warrant collection of more data.
Depth, cm
Location
0
—
0-BL-0
2-N-2
6-BL-0
10-BL-0
12-5-2
10
20
nan
nRt
nat
TR ft
WAN
"Rn
2.85
2.90
3.00
2.64
3.44
2.33
2.39
2.51
3.31
2.70
2.78
2.72
3.47
3.52
2.54
6.09
2.77
5.74
2.83
2.83
2.63
3.07
2.86
3.70
2.78
2.78
2.63
4.20
4.64
4.46
*Due to a programming error, the standard deviation reported here is overestimated.
**One or more of the computational components was less than the minimum detectable activity.
B-2-19