28 Nov 77 Chairman's Report - Conference on Runit Cleanup, 4-5 October 1977 FCZ SUBJECT: 3. Recommendations: The chairman recommends that the following program outline be transmitted to Commander, JTG for execution generally in the sequence listed, although some actions may be performed concurrently based on availability of assets. a. In coordination with ERSP, establish, b. Utilize FRST, other resources, and portable field instruments to grid for the northern half of Runit. survey and mark, a 50 meter search out and remove very smali "hot spots" and plutonium chunks on or near the surface. This effort should initially be confined to the FIG/ QUINCE area, concentrating on the areas shown as D level or higher concentration on the YVONNE (Runit) June-July 1977 aerial survey. This effort 1S visualized as a locate-and-measure and shovel-and-bag operation. It is not intended to excise extensive areas of surface contamination. Its purpose is to attempt to pick up milligram and larger particles of plutonium concentrated in very small areas, generally less than one meter square. Removing such very high contamination level spots should reduce the size of the areas which in-situ survey will characterize as greater than 400 pCi/g, thus reducing the volume of surface soil to be excised. This effort should be carefully monitored and if it appears unproductive, should be stopped. Location, amount excised, and estimated activity for each excision should be recorded. Excised soil should be stored for crater containment. If the hot spot extends deeper than about 25 centimeters the area should be treated as in f below. c. If resources are available, the effort outlined in b above should be tried in the Cactus crater vicinity. The test should be in the vicinity of USAF-RHL sample sites 9, 10, 27, 31 as shown on the Runit data map (previously provided). This effort should not be extensive. The Cactus crater area does not exhibit the same characteristics as the FIG/QUINCE area. The effort will probably not be productive in the Cactus crater area, but potential gain justifies a limited experiment, provided sufficient resources are available not to interfere with other operations. d. Using an IMP, conduct in-situ surveys on the established 50 meter grid, to define the size of the areas contaminated to levels greater than 400 pCi/g PU 239/240. In order to minimize risk of contamination of the IMP, this need not include a detailed survey of the area within the 400 pCi/g isopleth. However, data taken should be directly contributory to the full survey required for cleanup and certification. This effort should be confined to the FIG/QUINCE area and the Cactus crater area as indicated by the contamination isopleths on the YVONNE June-July 1977 aerial survey data. Lararaty ’ res ae wp ~ wig ht e ae, tay aae 7 cody eae . grea Rare ‘ eta 4 ’ . . Corey Mg ne . . St . o : cng oe oF poy bs rete . a” at ad . - ‘ ect WN ree term taver CS Ge Fe Pe . . ms , . st . . ‘ featdye. mate we yore gg vot . . hoe tee Bo I Capea: . os ‘ . “oo oo ‘ ' > wes ey me fF . , pein ot rs