NYC-WTC_000208694

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 Code: 101953 Date Analyzed: 9/29/01 SUMMARY OF ANALYTICAL RESULTS - PLM Batch #: 0109B385

Site: 3 World Financial Center - Floors 3-26

SAMPLE # DATE COLOR ASBESTOS TOTAL % OF rniuCTm DESCRIPTION/LOCA TION DETECTED? ASBESTOS CONSTITUENTS COLLECTED LAB# CLIENT'S SAMPLE #

11005 11th Floor/ South East/ Office Right of GRAY NO d% FBGL 25% 9/28/01 Conference Room/ Sample of Debris NFIB 75% 10981 11-065 11006 11th Floor/ South East/ Office Right of GRAY NO 0% CELL 20% 9/28/01 Conference Room/ Sample of Debris FBGL 10% 10982 NFIB 30% 11-006 11007 11th Floor/ South East/ Office Right of GRAY NO 0% FBGL 20% 9/28/01 Conference Room/ Cubicle/ Sample of CELL 5% 10983 Debris NFIB 75% 11-007 11008 11th Floor/ South East/ Office Right of GRAY TRACE <1% CHRY <1% 9/28/01 Conference Room/ Passage \Nay/ Sample CELL 20% 10984 of Debris FBGL 10% NFIB 70% 11-008

*INSUFFICIENT MATERIAL SUBMITTED **TEM RECOMMENDED ***NOT ANALYZED POSITIVE STOP

Sample Analysis by: ASBESTOS CONSTITUENTS NON-ASBESTOS CONSTITUENTS

Polarized Light Microscopy-Dispersion Staining (PLM-DS) CHRY = Chrysotile Asbestos PAPF = Paper Fiber AMOS = Amosite Asbestos MINW = Mineral Wool CROC = Crocidolite Asbestos FBGL = Fiberglass Method of Sample Preparation and Analysis: ACTN = Actinolite Asbestos SYNF = Synthetic Fibers All samples were prepared and analyzed in accordance with the EPA TREM = Tremolite Asbestos CELL = Cellulose Tyiefhod 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-2A/M 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 vyritte ■ approval of JLC Laboratory, and it must not be used by client to claim product endorsement by NVLAP or any agency of the U.S. Government. This, method-is not applicable to samples containing large amounts of fine libers below the resolution of the light microscope. The value oT this method is limited to the quantitative identification of asbestos and the semi-quarrtitalive 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 fiberswith optical properties similar to asbesto may give positive interferences andwill be considered asbestos under this methodology. Also, PLM is not consistently reliable in detecting asbestos in floor coverings and similar non-friable organically-bound materials. Quantitative 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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NYC-WTC_000208695