II. C. Activity Concentrations in waver
The highest measured concentration of fallout debris in water was
. 1.4 x 1074 microcuries per milliliter extrapolated to D+ 3 days after detona-
As noted in the Commissionts 18th Semi-Annual Report to Congress, thir
tion.
to. is about 1/36 of the operational guide - an amount that is still. considered
safe even if the water were to be stored and used as the sole source of supply
for a lifetime."
(See Appendix V. B. for discussion of criterion)
Buster-Jangle (Fall 1951)
Six samples from Lake Meade showed negative results.
Tumbler-Snapper (Spring 1952)
Approximate
distance
from ground
wero
Date
(air miles)
May 1, 1952 Crystal Springs Pond
0.5 x 10-8 microcuries
95
0.28 x10-8 microcuries
Pahranazat Lake
56
May 2, 1552
Creek North of Caliente
97
- Drinking Water -
at 3 days after detonation)
63
May 1, 1952
May 2,°1952 Caliente
Analysis
(microcuries per milliliter
1.0 x 1078 microcuries
1.1
xl07°%
microcuries
Atomic Exarsy Commissicn's 23th Semi-Amnual Report to Congress
July-Decenter 1952, 9 2,
Fe LT.
a!
Upshot-Knethel (Spring 1923)
Concentration microcuries ner
milliliter extrapolated to
Localitx
3 days after detonation
Virgin Hiver irrigetion Canel, Nevada
5
Irrigati:: Ditch, 56 miles north of Pioche, Nevada
8.7 x 1072
Laver Parunirat Latte, Neveda
1.5 x 107?
Wiywin River at Maeorien, Mewes
Bunkerscd lis, Navalsn
rad Water)
SIVSUZ. ICTuiri.
Lavacs
an
22.2 = 1g¢°9
2,6 167?
uater)
1.2 nu LOY
1. «197°
etomic Eeeraiy Cermissionts ith soni-Annial Rerort to Congress,
’ Concentestion (Micrucuries poy |
Teanot (Scring 1955)
Upper Pahranagat Lake, Nevada
Locality
Waterhold near State (Nevada) Highway 25
milliliter ‘extrabolated to 3 days
after detonation) ,
1.4 x 1074
9.2 x 1072
Meadow Valley (Nevada) Wash
3.2 x 1079
Atomic Energy Commission's 18th Semi-Annual Report to Congress,
Jannary-dune 1955, n. 80,
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