Memo to F Cluff, Subject: Disposal of Scrap Material at Bikini Atoll (Encl: Consideration of Purpose and Objective for Radioactive Scrap Removal at Bikini Atoll)

Page 1

mu-my Identiileda rwrber of lomtiozism the Irlaadsof Bikini actirity. Such 8craplcmtIon~undeocrIbed lntbe Eealthandsaiety vbich are on lslrads aa~ iamer test- aitea, my be iikntiiied as: Bravo Crater in the aarthveat pert of the atoll, and (c) an mre~~ JUIO, the poroIbIiItyearmtbe ruled out that there my be BQ~ vere oboervedthereonr cable spmlmxlonly a mall frPctIozlof the three testfacilSty locationsin rhallcwvater ontbe reef betuea the Aanen-IroIJCaugltxaad Baa vhichueze not IonItorcd during the bfiz8rds of resettlmt of the Bikini Atoll -ds-of lrap metal c0nt6lni~ ioduced raQIomctIvItyend that mtfves collect muface, and wraps of wtalrfxed with the top layers of rand and soil. the top l~yeroof sand and soiloftbeoe Ielanbs.

Page 2

@cm&p &?atioem b the northern portionof the atoll tilllnvolve bzept for 6 tr ce Qubatlty, the radionucllde in the contmlmted The wrap amaanilrjnt VU. decay through 81x half-life prlods XX to 200 feet deep lntxldtar outside the lagoon vi11 make the

Page 3

matelyequlwllenttothe b+eperpu%6 of the lagoon. or outridetbereefulth ~ml.nlmmiU~~tanceofonenlle to the an& includedin final reparts. Ii amy aarkerr tare used they wrap cuintabiq lnbucedraQlcmctlvltylsaottobe placed within the prohibited arm Locate4lathem~8tend of the &goo~(refer

Page 4

6. DiBpowLl of #crap contaw no iaduced ra4mectlvlty cluch LIB mterials on other ialar& rqulres no special cowi.deration ftan a radiolcrgical vhwpolnt end 1s therefore not ewertd 7. As discmsed &ISItem 3 of AttechBMt 6, eonsMtraticm of account their redlologlcalcrtatusand pcmslblcutility. In thlr rtrgardit is expectedthat bunker conttunlmtion levelrtill be reduced more rapMly than levels 3.nthe roil of the Dcat testlu&xdb. Sbere ie the additionalueed to obtain inputmxithe mlntn?rritoryl-epms~tBtftC that uBemigBhtbe8ade of these rtructures. mesebunkerr wxald not appear to fall in the same categoryes other o#pc recrd1l.y retwable con-ted wrap materialsince their potential ruggestul thatthefr pby6tealratherthanredSo~ical cdlition Is the mm laparbnt emsideratlon ardle dectsicmon their dieposition&ould be made ia the field ea;tiiacomiderlmg the desiresof the returningpatives. FYxml.ly,it is knowa that the dietxibutioa of *crap fouod on these into the deeper psrtrofthe &gx3nandoctan. It is lggested thet location andrsrnrnalofthis undervaterawtalrcr~p la generallynot feadble Urc that any pr&lem wfth such materiallo beet handledbs;