ann ah ▁River ▁Site ' s ▁first ▁ship ment ▁of ▁ne pt un ium ▁ox ide ▁arrived ▁at ▁the ▁Arg onne ▁West ▁Labor atory ▁in ▁Id aho . ▁This ▁was ▁the ▁last ▁of ▁the ▁USA ' s ▁ne pt un ium ▁invent ory , ▁and ▁the ▁last ▁of ▁the ▁materials ▁to ▁be ▁stabil ized ▁to ▁satisfy ▁commit ments ▁for ▁stabil izing ▁nuclear ▁materials . ▁F ▁C any on ▁was ▁the ▁first ▁major ▁nuclear ▁facility ▁at ▁the ▁site ▁to ▁be ▁susp ended ▁and ▁de activ ated . ▁Low - en rich ed ▁u ran ium ▁( LE U ) ▁from ▁the ▁site ▁was ▁used ▁by ▁a ▁Tennessee ▁Valley ▁Author ity ▁nuclear ▁power ▁re actor ▁to ▁generate ▁electric ity . ▁The ▁tr it ium ▁facilities ▁modern ization ▁and ▁cons olid ation ▁project ▁completed ▁start - up ▁and ▁replaced ▁the ▁gas ▁pur ification ▁and ▁processing ▁that ▁took ▁place ▁in ▁ 2 3 2 - H . ▁W S RC ▁began ▁multi - stage ▁lay offs ▁of ▁permanent ▁employees . ▁ ▁In ▁ 2 0 0 6 , ▁design ▁work ▁took ▁place ▁for ▁the ▁Salt ▁W aste ▁Process ing ▁Fac ility ▁( SW PF ), ▁a ▁facility ▁designed ▁to ▁process ▁radio active ▁liquid ▁waste ▁stored ▁in ▁under ground ▁storage ▁t anks ▁at ▁the ▁site . ▁The ▁SW PF ▁project ▁work ▁is ▁performed ▁by ▁a ▁group ▁anch ored ▁by ▁Par s ons ▁Cor p . ▁Work ▁continued ▁on ▁design ▁of ▁the ▁MO X ▁fuel ▁fabric ation ▁facility ▁by ▁a ▁company ▁now ▁known ▁as ▁Shaw ▁A RE VA ▁MO