Document bB1eqYyQjRpE3j3NMRyX5EVVy

INTERNAL COROESPONOENCt UNION CARBIDE CORPORATION ' 0O9 S -rf Cj PLAINTIFF'S EXHIBIT A. F. Terry p. D. Gossage c. P. Maxwell R. G. Rowe, M.O. C. L. Ruddle R. E. Sergent October 7, 1986 HS&EA Industrial Hygiene Asbestos Exposure Monitoring Attached are the results of the Asbestos'exposure monitoring performed on on September 13, 1986 while stripping Asbestos from miscellaneous valves and lines, during a main steam header shutdown. Most of the work was done inside of Building 707 and 706. They were equipped with two pair of disposable Tyvek coveralls, boots, gloves and a Willson half-face respirator containing R-12 HEPA filter cartridges. They removed their outer coverall and discarded before exiting each barricaded area and proceeding to the next. Upon completion of the job showered, before reapplying their street clothes. . had not worked with Asbestos containing materials before or after the monitoring period. However did work with insulation (Asbestos) after his monitoring pump shut down, due to low flow. Therefore a Time Weighted Average cannot be reported for exposure monitoring results indicate that the levels were below the Permissible Exposure Level (PEL) of 0.2 fiber/cc, established by OSHA for an 8-hour workday (TWAg). However, the levels were above the action level of 0.1 fiber/cc also established by OSHA. breathing zone air concentration was 0.221 fiber/cc, which indicates that his average exposure would be in excess of 0.1 fiber/cc (action level), even after assuming no exposure to Asbestos during balance of the day. We are recommending more water (when possible) and more care in stripping and cleaning up the Asbestos. F: : 1 I i [ 5 IE:; UCC 011343 Asbestos Monitoring - continued -2- October 7, 1986 Please notify 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 or if you have any questions, please contact us on extension 4779 or 3750. WORK BY: APPROVED BY: "'`Vance . Stover Attachment VES:MAP:rab 1779P Manhar A. Patel UCC 011344 ASBESTOS EXPOSURE MDNITORING Carp. ref. W2035 Pate 9-13-86 9-13-86 Sanple Type/ Enployee Name Sarrpling Time 5 hrs 53 min. Air Gone. fibers/cc 0.164 4 hrs 32 min. 0.221 TWs fibers/cc 0.103 _____________ QWEOTS Collected while stripping and cleaning up Asbestos from ' miscellaneous valves, lines, etc. during steam header shutdown. / Collected while stripping and cleaning up Asbestos from miscellaneous valves, lines, etc. Time Weighted Average (TVflg) was not reported because his sanpling A puip shut down because of low flow (pinched sanple train). Therefore, he had Asbestos exposure that did not show on the sanple. ASBESTOS Permissible Level 0. fibers/oc OSHA 1779P UCC 011345 I I