TABLE 29
OFF-SITE RADIATION SURVEY FROM MATHER
POINT, SOUTH RIM OF GRAND CANYON
NATIONAL PARK, SOUTH VIA ARIZONA 64
TO US 66
Distance
from
start
miles
0
LO
18
20
28
30
38
ho
48
D-11
Day
back-
ground
mr/hr
0.03
0.02
0.02
0.02
0.02
50
0.03
29.3
0.02
58
D
Dose Rate
(Shield
closed)
+
3
Days
At
time
mr/hr
hours
0.02
1455
0.01
1521
0.02
1511
0.01
1534
0.02
1555
0.02
1611
0.02
1628