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5 INTERNAL CORRESPONDENCE UNION CARBIDE CORPORATION technical center PO BOX 8361. SOUTH CHARLESTON. WV 25303 To INar^iel 0ivi50n Lcx,cmn Area J. H. Frazer 704 511 Copy CO C. P. Maxwell - 701/2 R. G. Rowe, M.O. - 791 C. L. Ruddle - 704 R. E. Sergent - 704 Ofite Or'or>srjfKj Ot#pr. Ar ea S^Diect. February 18, 1987 EM&TS - HS&EA Industrial Hygiene Asbestos Exposure Monitorinq - Non Abatement Attached are the results of the Asbestos exposure monitoring performed while P. M. Chapman and P. L. Allison drilled 36 holes into transite. The holes were drilled to install a grid rack in a hood in Building 726-105. They used a HEPA filter vacuum cleaner to capture the dust,at the source, keeping it from becoming airborne. They were both equipped with a Willson R12 IIEPA filter cartridge respirator, disposable coveralls and booties. The sample collected on P. M. Chapman was well below the 0.1 fiber/cc Action Level, established by OSHA for an 8-hour workday (TWAg). The sample collected on P. M. Allison was voided because the pump quit 1 hour and 34 minutes after the sampling started. Even though the levels were very low, we suggest adherence to the procedures, established for non-abatement type jobs. Please notify P. M. Chapman of his exposure monitoring results as soon as possible. Please have him sign and date this report and return to M. A. Patel at Building 701-330. If we can be of further assistance, please call us on extension 4779 or 3750. WORK BY: APPROVED BY: Vance E. Stover Attachment VES:MAP:rab 2109P Manhar A. Patel UCC 024805 ASBESTOS EXPOSURE MMTORINS Carp. ref. W2141 Date Sarrple Type/ Employee Name 2-11-87 P. L. Allison Sanpling Time - Air Cone Fibers/cc 11% Fibers/cc -- COMMENTS Voided - sanpler quit 1 hour and 34 minutes into the day. 2-11-87 P. M. Chapman 7 hrs 43 min 0.0015 0.00145 Collected while,along with Allison, drilling 36 holes into transite for installing a grid rack inside of a hood in 726-105. ASBESTOS Permissible Exposure Level, TWq 0.2 fibers/cc OSW Action Level 0.1 fibers/cc_ 2109P UCC 024806