Air Concentration Summaries from

Environmental Surveillance Reports

TA-16 S-Site

------------------------------------------------------

Calendar
Total Air
Total #
# Samples
Air Concentrations

Year
Volume (m3)
Samples
< MDA
------------------------------------------------------

Min
Max
Mean Std.Dev. Units

====================================================================================================

Pu-239

1971B 5
120
39
58
aCi/m3

1972 76
36
aCi/m3

1973 83
18
4
aCi/m3

1974 114
29
3
aCi/m3

1975 41
19
2
aCi/m3

1976 95786
8
2
1.8
6.5
4.1
0.9
aCi/m3

1977 70061
4
2.2
23
19
34
aCi/m3

1978 94752
4
7.9
59
36
77
aCi/m3

1979 99348
5
2
0.8
242
20
75
aCi/m3

1980 71151
4
3
-1.1
4.9
1.1
2.7
aCi/m3

1981 48139
4
1
0.8
7.1
3.6
2.6
aCi/m3

1982 87990
4
3
-1.6
3.9
1
2.5
aCi/m3

1983 79223
4
4
0
1.4
0.7
0.6
aCi/m3

1984 82558
4
4
-0.8
1.3
0
0.9
aCi/m3

1985 101750
4
1.8
4
3
1
aCi/m3

1985 101750
4
3
-0.2
31.9
8
16
aCi/m3

1986 100594
4
4
0.3
0.9
0.6
0.2
aCi/m3

1987 103821
4
4
0.5
0.9
0.7
0.2
aCi/m3

1988 64175
4
3
-2.9
3.8
0.9
2.9
aCi/m3

1989 63901
4
4
0.3
2.1
0.9
0.8
aCi/m3

1990 76535
4
3
0.4
2.8
1.4
1.2
aCi/m3

1991 101140
4
4
-0.5
1.2
0.7
0.6
aCi/m3

1992 47643
3
5.3
18.2
12.5
4.7
aCi/m3

1995 4
3
0
3.5
1.2
3.2
aCi/m3

=====================================================================================================

Tuesday, December 24, 2002 Page 6 of 8
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