NYC-WTC_000208688

NYC 9/11 Public Portal Document

JLC ENVIRONMENTAL CONSULTANTS, INC. 200 Park Avenue South, Suite 1001, New York, New York 10003 Phone: (212) 420-8119 Fax: (212) 420-6092 Project No.: 01-2102 Metcalf & Eddy Inc. ELAP Lab Code: 11029 Analyte; ASBESTOS 3 Werner Way. Suite 310 NIOSH and AIHA Lab Code: 100273 Date Received: 9/28/01 Lebanon, NJ 08833 NVLAP Lab Cede: 101953 Date Analyzed: 9/29/01

SUMMARY OF ANALYTICAL RESULTS - PLM Batch #: 0109B385

Site: r 3 World Financial Center - Floors 3-26

SAMPLE # ASBESTOS TOTAL % OF CONSTITUENTS DATE DESCRIPTION / LOCA TION COLOR DETECTED? ASBESTOS CONSTITUENTS COLLECTED

LAB#

CLIENT'S SAMPLE #

7005 7th Floor/ South East Corner/ Central - BEIGE NO 0% CELL 20% 9/28/01 East/ Sample of Debris NFIB 80% 11021 7-005 7006 7th Floor/ South East Corner/ West/ GRAY NO 0% CELL 15% 9/28/01 Sample of Debris NFIB 75% 11022 7-006 7007 7th Floor/ South East Corner/ Passage GRAY NO 0% FBGL 25% 9/28/01 Way/ Sample of Debris NFIB 75% 11023 7-007 7008 7th Floor/ South East Corner/ Passage GRAY NO 0% FBGL 20% 9/28/01 Way/ Sample of Debris NFIB 80% 11024 7-008

nNSUFFICIENT MATERIAL SUBMITTED “TEM RECOMMENDED —NOT ANALYZED POSITIVE STOP

ASBESTOS CONSTITUENTS NON-ASBESTOS CONSTITUENTS Sample Analysis by: Polarized Light Microscopy-Dispersion Staining (PLM-DS) CHRY = Chrysotile Asbeslos PAPF = Paper Fiber AMOS = Amostte Asbestos MINW = Mineral Wool CROC = Crocidolite Asbestos FBGL = Fiberglass Method of Sample Preparation and Ana ACTN = Actinolite Asbestos SYNF = Synthetic Fibers All samples were prepared and analyzed in accordance with the EPA TREM = Tremolite Asbestos CELL = Cellulose "Method for the Determination of Asbestos in Bulk Building Materials" ANTH = Anthophylite Asbestos NFIB = Non-Fibrous USEPA/600/R-93/116, July 1993. ORGM = Organic Material WOLL = Wollastonite Instrumentation: HSHR = Horse Hair OTHR = Other Olympus PLM, Model BH-2/VM Stereomicroscope, Model VMZ 1x-4x. Gulam Machhiwala Laboratory Director

Analytical results reflect the make up of the materials only In the areas sampled. This "Summary of Analytical Results" shall not be reproduced except in full, without the writte approval of JLC Laboratory, and B must not be used by client to claim product endorsement by NVLAP or any agency of the U.S. GovemmenL This method is not applicable to samples containing large amounts of fine fibers below the resolution of the light microscope. The value of this method Is limited to the quantitative identification of asbestos and the semi-quantitative determination.of asbestos content of bulk samples, expressed as a percentage of the protected area. Quantitation of asbestos content was determined with a visual volume estimate, a calibrated visual area estimate, and/or point counting procedure. CAUTION; Other fibers with optical properties similar to asbesto may give positive interferences and will be considered asbestos under this methodology. Also, PLM is not consistently reliable in defecting asbestos in floor coverings and similar non-friable organically-bound materials. Quanfitalive transmission electron microscopy is currently the only method that can be used to determine if this material can b considered or treated as non-asbestos containing.

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