2. On December 15 it was reported by H-5 that an extremely high Pu urine sample assay had possibly been caused by extraneous contamination within the building. tions. A thorough survey of the H-5 work area gave no positive indica- Positive findings were found within two rooms occupied by H-4; however, the degree of contamination and manner of work does not seem to be the ex- planation to the high urine count. It now seems more likely that the high count originated from a sample that had been contaminated inadvertently and in turn contaminated the glassware of H-5. avail. Monitoring the assay kits was to no However, it was requested that all incoming kits be surveyed for possible contamination, inasmuch as the offending container may be back in cirqulation, in the run has/ahy Much of the glassware that had been used —— General: B. /, by autherit changed v to the U.S.E. R. by & Carl Enloe and Dean MeyeFe ef: of Cra afai Grounds on November 30 and returygdonDecembe 1. nt pe Classification ; oe (Sigrature ef pers a~ id, of. ‘ |~~ . 9 aE ay / aw and date} Baning tha cnang?, a UAE Two members of the General Monitoring Section spent considerable time as consultants to Group CMR-8 concerning the processing of U-233 from solution form to metal. After the anticipated health physics problems had been thoroughly discussed, the first shipment was received and handled on December 14. The material was packaged in polyethylene containers which in turn had been placed in birdeage shipping containers from ORNL. heavily contaminated -- to infinity. The inside of the cages were It was thought that this activity origi- nated from hypodermic needles being inserted into the side of the polyethylene flask for the purpose of equalizing the dtmospheric pressure, thereby bringing contamination to the outside of the plastic container. It has been suggested that this operetion be cerried on from the top of the container in the future, and that the polyethylene flask be placed within a plastic bag to prevent con- taminating the inner portion of the cage. The materials were transferred to the 1/13 of tolerance. drybox without incident and the air sample read only woe « “Gy y . . Technical “=