NYC-WTC_000208691

NYC 9/11 Public Portal Document

JLC ENVIRONMENTAL CONSULTANTS. INC. 200 Park Avenue South, Suite 1001, New York, New York 10003 Phone: (212) 420-3119 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 0109B385 SUMMARY OF ANALYTICAL RESULTS - PLM Batch#:

Site: 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#

9005 9th Floor/ South East/ East - Central/ GRAY NO 0% CELL 10% 9/28/01 Sample of Debris FBGL 20% 11001 NFIB 70% 9-005 9006 9th Floor/ South East/ East - Central/ GRAY NO 0% FBGL 20% 9/28/01 Sample of Debris NFIB 80% 11002 9-006 9007 9th Floor/ South East/ East - Central/ GRAY/ TRACE <1% CHRY <1% 9/28/01 Sample of Debris WHITE CELL 15% 11003 FBGL 20% NFIB 65% 9-007 9008 9th Floor/ South East/ East - Central/ BEIGE NO 0% CELL 25% 9/28/01 Sample of Debris NFIB 75% 11004 9-008

•INSUFFICIEMT MATERIAL SUBMITTED **TEM RECOMMENDED "*NOT ANALYZED POSITIVE STOP

Sample Analysis by: ASBESTOS CONSTITUENTS NON-ASBESTOS C TITUENTS

Polarized Light Microscopy-Dispersion Staining (PLM-DS) CHRY = Chrysotile Asbestos PAPF = Paper Fiber AMOS = Amosite Asbestos MINW = Mineral Wool CROC = Crocldolile Asbestos FBGL = Fiberglass Method of Sample Preparalion and Analysis: 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 = AnthophylHe 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 Gutam'^ch'^ala VMZ 1x-4x. 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, ahd 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 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 determiriation of asbestos content of bulk samples, expressed as a percentage of the protected area. Quantitation of asbestos content was determined with a visual volume esfimate, a calibrated visual area estimate, and/or point counting procedure. CAUTION: Other fibers with optical properties similar to asbesto may give positive interferences and v/ill 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_000208692