~ Me ate an i Lt = ~2< rains were not heavy aneugh te produce waahdewn of the general ares, At that tine high winds and rain falling at several inches per hour fer shout four hours re-~duced the general beekground approximately half. . Se Film badges used as controls were located about three feet inside an sluainua building end showed reduction to about 40 percent of outalde integrated dose. Lose rete survey metars indicated abeut 30 percent of out- side rete at positions greater than eight feet fron interior of building walls. Film hadges wern by office workers show a dose of about 60 percent of suteide in- tegrated dose. People workdng outelde most of the cay accumulated about 80 sercent of the outside integrated GOSe. de Though we did not attespt decontaaination va believe local areas could have been cleared where necessary by extangive hesing. Such methods presuppose ap~ preciebly better drainege than we have here, the teehnigue showid work well in cities but would be leas effeotive in suburban eress. In suburban and rarel areas our experience both here end in Nevada suggests thet surface grading is a very effective nethod of local decontantnstien. ‘“e intend te clear Farry Isisnd living and working areas by this nethed in order te reduce long tine dese to AEC and contractor personnel whe vill reaain here. We believe protection afforded by buildings resulted primarily from distance offecta since tents, though isss well deoumented, showed aimiler trend, Ry separate teletype Ir. Felt reported the following: ae Maximum readings on farry and Eniwetok were about 120 ar at 26 houra after the shot. io neximum wae recorded on Japten or other local islands and no fall-cat was observed at weather station islands and Enyu (Rikint). We fall-out was reported on Rengelep. coe