PRIVACY ACT MATERIAL REMOVED NN clothing picked up approximately 10,000 c/m, although their bodies received no contamination. Tape and tar paper devices were placed at measured distances for fallout detection. Air and dirt samples were gathered. The tests may continue during the early portion of January. 5. The experimental accelerator "Columbus" functioned for the first time, as far as neutrons are concerned, on December 8 using a 3 mev DD reaction. 6. The use of respiratory equipment at DP West is being investigated by members of Group H-5. Suitable types of respirators to be worn by plant personnel will be recommended following this investigation. An order has been placed for 100 MSA Comfo respirators with ultra filters, which will probably replace the Willson 750D, 7. . . MSA Multi-Use masks are being worn at all times in the 20] Evaporator, Unloading and Incinerator Rooms and in the 213 Unloading, Dissolver, and Evaporator Rooms at DP West. 8. The ventilation system in Building 5 at DP West is being checked by members of Groups H~5 and CMR-AE, Several over-tolerance air-borne contamination counts have been recorded in this srea which are believedduefoSnadeqlale7 Classification changed by aulhor: ventilation. to we" U.S. Se Aus Sebago Per Zz an J III, GROUP H-3, SAFETY (Roy ReidotS*EetuSey-!™ ND (pase) A,Accident Record By tL LE Man-hours Worked pS Number of Disabling Injuries Number of Days Lost Time . ¢ vo Frequency (Accidents per 1,000,000 Man-hours) Severity (Days Lost per 1,000 Manhours) B, OL t/7F (Signatgee of penn.Dee date) 5,056,698 24, ' 6,522 4.7 1.29 1953 5,319,125 17 182 3.2 0.03 Industrial Accident Exverience 1. On November 15, . » ENG-3, received a strain and contusion of his left shoulder when he caught a pipe to keep from falling through the ceiling at the Physics Building. 8 Lost time was 6 days. wa & \ cS , tL ae