Air Concentration Summaries from

Environmental Surveillance Reports

TA-53

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

Calendar
Total Air
Total #
# Samples
Air Concentrations

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

Min
Max
Mean Std.Dev. Units

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

Alpha

1971B 9
14
2.1
3.5
fCi/m3

1972 7.5
2.2
0.4
fCi/m3

1973 1.5
0.9
0.4
fCi/m3

1973 1.7
0.9
0.4
fCi/m3

1974 0.4
3.8
1.3
0.1
fCi/m3

1975 0.5
1.7
1.1
0.1
fCi/m3

1976 100187
26
0.6
2.8
1.2
0.1
fCi/m3

1977 89067
26
5
-1.4
3.8
1.1
2
fCi/m3

1978 81513
13
2
0
2.2
1.1
1.7
fCi/m3

1979 76055
12
0.7
4.9
2.2
2
fCi/m3

1980 89641
12
1.4
4.2
2.9
0.5
fCi/m3

1981 49899
12
1
7.8
4.8
1.3
fCi/m3

1982 84524
12
1.8
6.5
3.6
0.8
fCi/m3

1993 58400
25
0.6
8.7
2
3.7
fCi/m3

1994 60600
24
1.2
7.2
3.6
2.6
fCi/m3

1995 24
0.5
5.9
2
2.5
fCi/m3

1996 2
0.8
1.5
1.1
fCi/m3

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

Tuesday, December 24, 2002 Page 1 of 8
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