alpha contamination was noted on any of the containers (glass jars and sealed metal cans), The other "sample" of interest was the one cubie foot wooden box suspected of containing the leaking 10 mCi 137s ealibration sourcein its lead pig. Its exterior reading was 30 .R/hr. Estimates of Bunker Activity Two independent estimates were made of the 2414m content in the 400 plus bags. The FRST data compiled during soil collection was grouped according to activity level (i.e., sum of count rates for the soil removed and bagged per location). Those data are summarized below indicating that 90% of the bags contain less than 100,000 epm, while only about 1% contain activity levels greater than 500,000 cpm. Based on these data, an assumed PG-2 calibration factor, and 2700 grams of soil per bag, the total 241 Am activity was estimated to be 2.5 mCi. Gross Activity Level Percent of Bags Thousands of cpm less than 50 50 to 100 100 to 200 200 to 300 300 to 400 400 to 500 greater than 500 82.0 8.1 5.8 1.3 0.8 0.7 1.3 The second method involved the collection in petri dishes of seven soil samples taken at random from the pile of bags on 17 May 1979. These latter samples were taken from the available loose sand/soil from torn bags and that which had accumulated over the past year on the surface of other bags, probably as a result of personnel movements within the bunker either at the time of putting the bags in storage or during subsequent investigations. In addition to these seven samples, the entire area was surveyed with a PG-2 at which time three bags and a single concrete chunk were isolated from the rest of the pile. Based on field measurements, these three bags were assigned an activity level 100 times greater than the average found from the petri dish samples. Specific gross gamma measurements (PG-2) were made on each of the petri samples, the concrete ehunk (which was also photographed), and the two “baby food jars". These data are summarized in Table B-14-1 along with calibration data done back at the Eberline trailer on Enewetak. These data (300 to 5000 pCi/g, 241Am) compare favorably with the IMP pre and post lift values for the Fig/Quince area. The IMP TRU values ranged from 75 to 4100 pCi/g pre lift and 59 to 7000 pCi/g post lift. To estimate the total TRU within the bunker, the following assumptions were made: 1. Soil volume in bunkeris 4.5 ft. x 9.5 ft. x 1 ft. (43 ft3 or 1.2 x 106 em3) 2. Bulk soil density is 1.5 g/em3 3. Three "hot" bags at 1000 g/bag 4. Average 2414m concentration in bags (excluding 3 above) is average of 7 petri samples (2300 pLl/g 5. Pu/Am ratio is 10 B-14-2