Document kNR59D5VxvjQRRv66Qn4Ovd0

; IcnaoEj I ZONO LITE DIVISION W. R. GRACE A CO. E. D. Lovlck LIBBY. MONTANA ,, TELEPHONE 293-4131 June 30, 19$9 ' '' W. C. Nordln Kostlc, J. 0. Riggleman, R. J. Kujawa 03628033 The June dust counts, taken June 27. 1969, for the Dry Hill floors are tabulated below. During the sampling period there was a sweeper on the 4th floor. During sampling the wind was 1 HPH fromthe North, the temperature was 48F, the barometer read 30.08 and it was raining. Floor Dust Counts (nppcf) 6 5 4 3 Haif Deck 2 1 i ' v'i. 5-7 2.8 6.4 5-1 12.8 10.6 151630A1