General Electric Laboratory at Vallecitos
{about 10 miles west of JUCRL-Livermore site)
10 CFM air samples drawn thru 7” x 7°" HV-70 paper, 5 ft. above ground,
at 4 on-site locations. Average Beta-gama determinations taken continuously
per Geiger tube axially located in filter cylinders.
At end of week, filter
is removed, stored and lab-counted at 24, and 48 hours decay.
of datas
YS. decay.
Thus two types
f(a) integrated, showing build-up, and (b) total for week*s sample
(a) Daily integrated readings (counts per minute) among 4 samplers
10/15
16
17
20
21
22
23
24
27
175-200 ("normal")
500-700
600-750
200-300
10/29
30
31
11/1
250-350 (new sample)
900
300
600-900
500-860
500-700 (new sample)
70-1000
750-900
1000--1850
3
1000-1300
5
6
7
LO
200-250 (new sample)
350-600
300-850
175--225
(b) Weekly samples = Beta-gauma ppofm = Data rounded to nearest integer
(In all cases, the volume sampled was 407.7 m3)
Decay
Time_
10/640/13
Site
wrmperemassee
Site
2
ese
Site
Site
2.
4
8
5
&
4,
5
é
5
L
290
10
10
7
3
3
8
6
50
39
30
20
20
30
20
2h
48
50
L0
70
60
50
40
ak
48
10
10
i
10
9
9
2h hours
A
48
ee
10/13=~
10/20
2h
48
?
10/20-
ve
10/27
ah,
48
10/27-=
11/3
11/3flo
q
LO