31 soil Cleanup Planning 4. and high subsurface levels would be encountered.) Surface expected. tion levels over 80 pCi/g were multiplied by a factor of two and contamina 40 oCi/g by 1.3. Applying this factor to theinitial estimates for ihose Over ost critical islands (so far as soil transport was concerned) the four bled the estimate of soil volumes to be removed and amost do 98.99 As it happened, use of Treat Factor resulted in (rInsPo-mation of the soil volume to be removed, and the actual volume overswas only about 5,000 cubic yards (6 percent) overthe original, remo cted DOE-ERSP estimate. !00.10! ae of the factor led to pessimistic predictions at the conference. It yweated that cleaning Enjebi to residential levels (40 pCi/g) would in ove removing 58,670 cubic yards—more than could be transported in he year remaining, even using bulk haul. It also indicated that 25,000 cubic yards would have to be removed from Lujor just to prevent the sland from being quarantined (i.e., to cleanit to less than 160 pCi/g). To qualify Lujor for agriculture (80 pCi/g) as the dri-Enewetak desired, it appeared that 49,400 cubic yards would have to be removed and transported. ; The boat transportation available would have been adequate to move the predicted volumesif soil cleanup had begun on time, however,it did not appear adequate to move the predicted volumesin the time remaining. I) appeared that, unless the project were extended past 15 April 1980, a maximum of 12 months would be available to excise and transportsoil from the four islands, leaving another 2-1/2 months to complete Runit soil cleanup and | month to complete closing the concrete cap!02 (Figure 6-16). The latest estimates of boat capability were that only 48,000 cubic yards DESAIS REMOVAL ALL EXCEPT RUNIT tau 78 ° Q. DEBRIS AUNIT oO 21 May 79 SOIL REMOVAL ALL ISLANOS Q 18 Aug 29 COMPLETE RUNIT 9 4 SUN 78 _TREMIE OPERATION ° 5 ae 18 CRATER SEA WALL 2 16 Jud 78 Oo 1 Few 79 SOIL CEMENT Q_LKEYWALLACAP > 18 Ape 70 QO COMPLETE KEYWALL Oe 9 1S Sep 79 FIGURE 6-16. ENEWETAK CLEANUP PROJECT SCHEDULE, 4 MAY 1978.