Document MJbRQ5Z9KMRBvMJM1jkJz8xma

TO: FROM: SUBJECT: #714 East Chicago, R. Casas #151 Libertyville, C- P Byers^C ANALYSIS OF INSULATION, AR #1979 April 14, 1987 Three insulation samples were received for the determination of the presence of asbestos. The samples were in self-sealing plastic bags labeled Calciner Duct; #2 Contrell Duct; and Rock Dryer Duct. The samples were analyzed by polarized light microscopy using dispersion staining. The results are as follows: SAMPLES Calciner Duct #2, Contrell Duct Rock Dryer Duct FIBERS PRESENT Asbestos, Mineral Wool Asbestos, Mineral Wool Asbestos, Mineral Wool CDB/tds cc: #714 East Chicago, N. F. Garceau #143, M. F. O'Toole #176-5, F. P. May #151, B. W. Ost