The numerical guidance therein should be reduced by the eptiors. factors of 50 percent for individual exposure and 20 percent for gonadai exposure considering that exposures cannot be precisely prediczed. The detailed rationale for these reductions is provided in Appeccix ITI. The resulting guides for planning cleanup actions wili thee be: naole body and bone marrow ~ 0.25 Rem/yr Thyroid — 6.75 Rem/yr Bore - . ; 0.75 Rem/yr Gonads - . 4 Rem in 30 yr o Since there is no adequate scientific information which would support general guidance for cleanup of plutonium contaminated soil, | guidance can only be developed on a case-by-case basis using conservative assunpticns and safety factors. With this in mind, the Task Group recommenis the following for vse in making decisions neem ey concerning 2395.5 claasup operations at Enewetak: a. < 40 pCi/ga of soil - corrective action not required. b. 40 to 400 vCi/sm cf soil - corrective action determined on a cese-by-cas= besis* considering all radiological conditions. ce > £20 pCi/em of soil - corrective action required. ASSESSMENT IF LOSES AO TES RESULTS OF ALTERNATIVE CORRECTIVE ACTIONS The Task Group epproach for development of judgments and recommendations for the rediclegical cleanup and rehabitation of Enewetak was to consider a number of alternatives for exposure reduction that may be feasible. Basically, the procedure involved four steps: *See Appendix ILI for additional guidance. Ss Lady t | . s