Document qmRrpnJ9Ekr99Bkr79B56BQrE

Southeastern Operations 400 Chastain Ctr. Blvd., NW Suite 490 Kennesaw, GA 30144 (404) 499-7S00 Fax (404) 499-7511 Clayton ENVIRONMENTAL CONSULTANTS October 19,1992 Ms. Darlene S. Creel DOW CHEMICAL Industrial Pfygiene, Building 3502-W P. O. Box 150 Plaquemine, Louisiana 70765-0500 Clayton Project No. 44372.00 Purchase Order No. 1588298 MSI No. 163110 Lab Report No. 92J037 Dear Ms. Creel: Attached is our analytical report for the samples received on October 15,1992. Please note that any unused portion of the samples will be disposed of in 30 days, unless you have requested otherwise. We appreciate the opportunity to be of assistance to you. If you have any questions, please call me. Sincerely, Owen S. Crankshaw Supervisor, Microscopy Services Southeastern Operations OSC/bjm Attachment Clayton Environmental Consultant!, Inc. A Marsh A McLennan Company Detroit New York/Newark Atlanta San Francisco Los Angeles Honolulu Boston Windsor, ON Toronto Birmingham, U.K. London, ll.K. Southhampton, U.K. Lab Sample No. 47049 47050 47051 47052 47053 47054 47055 Client Sample Identification Dumpster Core Sample Composite Sample #4 - Center of Boiler Floor #1 - Below Debris #2 - Below Debris #3 - Below Debris #4 - Below Debris Results of Analysis of Bulk Samples for Asbestos Content for Dow Chemical Company Clayton Project No. 44372.00 Kennesaw Lab Report No. 92J037 October 19,1992 Sample Description % and Type Asbestos Brown fiber & mineral mixture, inhomogeneous Brown fiber & mineral mixture, inhomogeneous 5 Chrysotile Trace, < 1 Chrysotile Brown fiber & mineral mixture, inhomogeneous Brown fiber & mineral mixture, inhomogeneous Brown fiber & mineral mixture, inhomogeneous Brown fiber & mineral mixture, inhomogeneous Brown fiber & mineral mixture, inhomogeneous Trace, < 1 Chrysotile Trace, < 1 Chrysotile Trace, < 1 Chrysotile Trace, < 1 Chrysotile Trace, < 1 Chrysotile Clayton ENVIRONMENTAL CONSULTANTS Page 1 of 3 % and Type Non-asbestos Fibers Type Non-fibrous Materials 10 Cellulose 30 Fibrous glass 10 Cellulose 40 Fibrous glass 20 Cellulose 40 Fibrous glass 10 Cellulose 25 Fibrous glass 10 Cellulose 25 Fibrous glass 10 Cellulose 25 Fibrous glass 10 Cellulose 25 Fibrous glass Binder/Filler, Paint, Quartz Binder/Filler, Perlite, Quartz, Calcite Binder/Filler, Calcite, Quartz Binder/Filler, Perlite, Quartz Binder/Filler, Perlite, Quartz Binder/Filler, Perlite, Quartz Binder/Filler, Perlite, Quartz, Calcite DO 0 114097 i t hi. Clayton ENVIRONMENTAL CONSULTANTS Clayton Project No. 44372.00 Kennesaw Lab Report No. 92J037 Page 2 of 3 United States Environmental Protection Agency. Environmental Monitoring Systems Laboratory. 1982. Interim Methodfor the Determination ofAsbestos in Bulk Insulation Samples. EPA-600/M4-82-020. Washington: GPO, December. Percentages are visual estimates based on volume. Limit of Detection: <1% Limit of Quantitation: Wo NOTE: The reliable limit of quantitation of the method is Wo, although asbestos may be qualitatively detected at concentrations less than Wo. Samples for which asbestos is detected at < Wo are reported as "trace, < Wo". No asbestos detected (NAD) indicates that no fibers were observed. Clayton's Kennesaw, Georgia laboratoiy is accredited by the National Institute of Standards and Technology's National Voluntary Laboratoiy Accreditation Program (NVLAP Lab No. 1125-00). This test report relates only to the items tested and may not be used to claim product endorsement by NVLAP or any agency of the u.S. Government. _D A 114698 ONr TDFNTIAL Clayton "environmental CONSULTANTS Page 3 of 3 ANALYTICAL METHOD FOR ASBESTOS IN BULK SAMPLES USING POLARIZED LIGHT MICROSCOPY (PLM) A representative portion of the bulk sample is transferred to a small dish. The sample is examined under a stereo-microscope at 10 to 40 X magnification to determine if the material is fibrous and to note the physical characteristics of the sample. If fibers are present, fiber morphology is noted. Forceps are used to extract fibers from the sample. At least one fiber representative of each type observed in the sample under the stereomicroscope is extracted and mounted on a microscope slide using a refractive index liquid (Cargille Series E: HD [high dispersion]). After mounting, the fibers are analyzed and identified using polarized light microscopy (PLM) supplemented by dispersion staining. After fiber identification using PLM, a visual estimate is made of tne percent composition by type of asbestos present and by type of other fibrous materials identified. The visual estimate is based on volume and is accomplished using stereomicroscopic examination of the bulk sample. References McCrone, Waller C 1980. The Asbestos Particle Atlas. Ann Arbor, MI: Ann Arbor Science Publishers, Inc. United States Environmental Protection Agency. Environmental Monitoring Systems Laboratory. 1982. Interim Methodfor the Determination ofAsbestos in Bulk Insulation Samples. EPA-600/M4-82-020. Washington: GPO, December. 00 A CCNFTDENTTAL 7/89