Document qj6B6mdO56pJYmbjz91wDGOK

UNION CARBIDE CORPORATION technical center PQ BOX B361, SOUTH CHARLESTON. WV 35303 To,NB",eC. W. Wible n,~5.or, 770/162 511l.tJC3t*on copy to Qossage - 701/4 C. P. Maxwell - 701/2 R. G. Rowe, M.D. - 791 -- R. E. Sergent - 704 July 15, 1987 ,n3DlM EM&TS - HS&EA Industrial Hygiene Asbestos Exposure Monitoring Attached are the results of the non-abatement asbestos exposure monitoring performed on J. A. Ingram and W. S. Ballingall while pulling computer cable above ceiling tile and through service shafts in Building 770. They were equipped with Half-face Willson R-12 HEPA filtered respirators. The exposure monitoring indicates that the levels were well below the 0.1 fiber/cc Action Level, established by OSHA for an 8-hour workday (TWAg). However, anyone working above or removing ceiling tile must continue to wear the protective equipment, mentioned above, until enough data is gathered to indicate a problem does not exist, whenever doing this type of work. Please notify 0. A. Ingram and W. S. Ballingall of their exposure monitoring results as soon as possible. Please have them sign and date this report and return to M. A. Patel at Building 701-330. If we can be of further assistance, please feel free to call us on extension 4779 or 3750. WORK BY: APPROVED BY: 'CUw Vance E. Stover Attachment VES:MAP:rab 2488P Manhar A. Patel UCC 024822 ASBESTOS EXPOSURE MONITORING Conp. Ref. W2236 Date Sample Type/ Employee Name Saipling Time Air Cone. Fibers/cc TWAg Fibers/cc COMMENTS 7-2-87 Personal/ J. A. Ingram 7hrs 3 min 0.0375 0.033 Collected while pulling computer cable above ceiling tile and inside of service shafts in Building 770. Job took approx. 4 hours to complete. 7-2-87 Personal/ W. S. Ballingall 6hrs 56nin 0.0148 0.0128 .Collected while pulling corrputer cable above ceiling tile and inside of service shafts in Building 770. Job took approx. 4Jx>urs to conplete. ASBESTOS Permissible Exposure Level TWg 0.2 fibers/cc 05HA Action Level (J7T fibers/cc 2488? UCC 024823