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M J W C J F V MC2A Luzenac America Technical Center 8985 East Nichols Avenue Englewood, CO 80112 (303) 643-0451 Faxr (303) 799-8926 TECHNICAL REPORT To: From: Copy: Marty Hayes Julie W. Pier Analytical and Technical Support R. J. Buettner J. M. Godla M. Lorang R. J. Zazenski Analytical Project No: A01524 Date: 24-Sep-01 Subiect: TEM ASBESTOS ANALYSIS OF WEST WINDSOR FLOAT ' FEED CONCENTRATE Request: A sample of the March Float Feed Concentrate from West Windsor was submitted for asbestos analysis by transmission electron microscopy (TEM). Bain Environmental, Inc. Initially analyzed this sample and reported finding a trace amount of chrysotile. Results: The following results were obtained using the ASTM D 5756-95 procedure for the detection of asbestos by transmission electron microscopy (TEM). No chrysotile was detected. However, a large talc ribbon (~30 x 0.3 pm) was observed that could have been misidentified as a chrysotile fiber. Analysis of this "ribbon" by selected area electron diffraction (SAED) and energy dispersive X-ray spectroscopy (EDS) confirmed that it was talc. March Float Feed Concentrate from West Windsor Analytical Sample No. A 0 1 524-1 Number of Chrysotile Asbestos Structures: 0 Number of Amphibole Asbestos Structures: Asbestos Concentration (ppm) .0 ND* *ND = Not detected. This sample contains less than 0.6 ppm asbestos (the limit of detection for this analysis, defined by method ASTM D 5756-95, Section 17.9). PLAINTIFFS EXHIBIT CAM-304 ITA-Ratcliff-001011 1 Johnson, Joan (LNA) From: Sent: To: Subject: Hayes, Marty (LNA) Tuesday, September 25, 2001 7:42 AM Fimbres, Francisco (LNA); Mauney, Steve (LNA); Johnson, Joan (LNA) FW: TEM asbestos analysis of West Windsor Float Feed Concentrate FYI -- Original Messaqe From: Pier, Julie (LNA) Sent: To: Cc: Subject: Monday, September 24, 2001 5:04 PM Hayes, Marty (LNA) r c f i tneL' J?ck Godla>Jon (LNA); Lorang, Mike (LNA); Zazenski Rich (LNA1 TEM asbestos analysis of West Windsor Float Feed Concentrate ' aQ1524.doc 1 ITA-Ratcliff-001012