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FRANCIBCO,
POSTMASTER
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A044
CALIFORNIA
25 July 1956
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H-6-TU-7=38
Dre Thomas Le Shipman
Los Alamos Scientific Laboratory
P. 0. Box 1663
Los Alamos, New Mexico
Dear Dre Shipman
I guess I'd better give you a brief resume of the fall-out situation here
before someone gets at you in the wrong manner. This has already happened,
apparently, as a result of a TWX that was sent to NYOO, then passed on to General
Starbird.
We got caught by fall-out here at Eniwetok starting approximately 1500 hours
on 21 July. ‘The stuff came down from Bikinis; the Tewa shot was the culprit. As
best as I can determine, the wind structure, god to excellent for firing,
collapsed right after the shot was fired and the stuff came rolling in to Eniwetok.
The rate of deposition was rather rapid, I would say. I'm enclosing a graph with
this letter that gives you a fairly good idea as to the rate of fall-out and the
build up of the "mr/nr" background.
Primary interest centered in getting
Fortwmately, no one got "shook up".
off Huron, which we did, Perhaps we should have been jarred a bit, for we did
not fully appreciate the impact on the roll-up operations until Monday morning,
/
*
at which time the H & N people started sweating over the many, many people they
would have to evacate to Bikini (of all places) to get them out of the hot area
for a few days. Since CJTF-7 and company had departed to the ZI by then I simply
took the matter up with Bill Ogle, who sent a TWX off to CJTFe7 at Honolulu
requesting an increase in the MPE to 7 roentgens for the duration of the operational
period. That request was granted, so no real slow-down of the roll-up was felts
H &Nshipped about 50-60 people to Bikini, but they are rapidly returning them
°
wetok,
Just my luck, I guess,
I patted myself on the back a couple of days too
scone Prior to 1500 hours on the 21st, we had approximately 25 people out of the
entire Task Force who had technical over-exposures for the entire operation.
48 hours later we had somewhere around 600 or more with the over-exposure. Such
is life.
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