Document wLkNnOEqk5wzB0Rj2k1R7QmJ

ZONOLITE DIVISION W. R. GRACE & CO. 01125 R. A. Bleich March I, 1968 R. J. Kujawa Dry Mi 11 Dusts Peter :ic, W. C. Nordin, J. D. Riggleman R. W. Sterrett, 0. F. Stewart 03628022 Wes has completed several consistent sets of readings on the Dry Mill. He is now in a position to continue the readings on a monthly basis. We are requesting Mr. Wake, State Board of Health, Helena, Montana, to come during March. He will check Wes Nordin again at that time. The February readings are as tabulated below. The readings agree quite well with the 1967 readings taken by Robert Vtnfon. Floor 6 Floor 5 Floor 4 Floor 3 Half-Deck Floor 2 FI oor I 12.5 mppcf 11.1 mppcf (sweeper in area) 7.5 mppcf 8.6 mppcf 11.1 mppcf 8.2 mppcf 3.2 mppcf r RJKujawa/jbg 15163030