Document 7ELBqyJ5amZO5gOq5VwkZOjV

INTERNAL CORRESPONDENCE PLAINTIFF'S EXHIBIT CHEMICALS AND PLASTICS To (Narre; Div-sion Location Copy to Mr. W. T. Shelton Building 704 Shop Mr. G. F. Hurley Mr. H. L. Robinson P. O. BOX 8361, SOUTH CHARLESTON, WEST VIRGINIA 25303 D,,,e October 2, 1979 o,oepi Technical Center IH/EP Subiecr Asbestos Monitoring Building 720 - Basement Equipment Area PROJECT Breathing zone samples were collected to determine the exposure of J. R. Monin and J. W. Greenlee to asbestos fibers. DATE OF SURVEY September 19, 1979 DISCUSSION On September 19, 1979, separate breathing zone samples were taken on J. R. Monin and J. W. Greenlee to determine their exposure to asbestos fibers while they were stripping approximately 40 feet of suspected asbestos insulation from a steamline running to S-6 Precipitron in the basement equipment area of Building 720. During the stripping both men wore 3M disposable dust masks and coveralls. Before stripping, the insulation was wetted. After the stripping, it was placed in plastic bags for landfill disposal. CONCLUSIONS The exposure of J. R. Monin and J. W. Greenlee were 0.3 and 0.5 fibers > 5 pm/cm3 respectively. Both values are well below the 0SHA standard of 2 fibers > 5 gm/cm^ on a time-weighted average for eight hours. See results below for exposure data. REFERENCES Volume 38C"29X4-Rla Asbestos, Dust Determination by Membrane Filter Technique Using Phase Contrast Microscopy L UCC 024734 &(r. W. T. Shelton October 2, 1979 Page Two RESULTS Date 9/19/79 9/19/79 Sample Type J. R. Monin J. W. Greenlee Time (Minutes) 68/2 LPM 72/2 LPM Asbestos Exposure (Fibers > 5 pm/cm^) 0.3 0.5 REPORT PREPARED BY Ruth Clise Technical Center Industrial Hygiene Department REPORT APPROVED BY 'G. F. Hurley RC/sc j { U.CC 024735