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Ambient air sampling report, 333 Rector Place, Sep 2001

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Laboratory report on ambient air samples collected in apartments and common areas of 333 Rector Place during September 24-26, 2001.

NYC-WTC_000120641–000120738

Folder label: “380 RECTOR PLACE Block: 16 Lot: 7505 BIN: 1000544 Liberty Terrace

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NYC 9/11 Public Portal Document NOV.15.2001 5:43PM JLC ENVIRONMENTAL NO.752 P.7/14

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.: 01-2200 Milford Management Corp. FLAP Lab Code: 11029 Analyse: ASBESTOS 20 West 64th Street NIOSH and AIHA Lab Code: 100273 Date Received: 11/15/01 New York, NY 10023 NVLAP Lab Code: 101953 Date Analyzed: 11/15/01 SUMMARY OF ANALYTICAL RESULTS - PLM Batch#: 0111B439

Site: 200 Rector Street, New York, NY

SAMPLE # DATE ASBESTOS TOTAL % OF DESCRIPTION (LOCATION COLOR CONSTITUENTS COLLECTED DETECTED? ASBESTOS

LAB# CLIENT'S SAMPLE#

012 Roof/ 10th Floor Roof/ Low Bulkhead/ TAN TRACE <1% CHRY <1% 11/14/01 West/ Sample of Roof Debris Tan ANTH <1% 12821 CELL 15% FBGL 40% 0128 NFIB 45%

"INSUFFICIENT MATERIAL SUBMITTED '"TEM RECOMMENDED "'NOT ANAi.YZED POSITIVE STOP

Samnle At aivela bv~ ASBESTOS CONSTITUENTS NON-ASBESTOS CONST1T ENM Polarized Ught Mlcroscopy-Dispersion Staining (PLM-DS) CHRY = Chrysodle Asbestos PAPF a Paper Fiber AMOS = Amoslta Asbestos MINW = Mineral Wool Method of Sample PreperaSon and Analysis CROC o Croeldolite Asbestos FBGL Q Fiberglass ACTH - Actinollta Asbestos SYNF ■ Synthetic Fibers All samples were prepared and analyzed in Accordance with the EPA TREM a Tremollte Asbestos CELL = Cellulose "Method for the Dotennlrwdon of Asbestos In Bulk ltullding Materlela" ANTH = Anthophylite Asbestos NAB = Non-Fibrous USEPA/ 600/ R-6S/118, July 1993. Of2GM = 0FRaP1c Metarlttl WOI L Wollastonite Instr umentatlon: HSHR = Horse Heir OTHR = Other Olympus PLM, Model BH-2A/M Stereomlcroecope, Model VMZ 1x-4x, Gulam Machhiwala Laboratory Director

Analytical results reflect the make up of the materiels only in the areas sampled. This "Summary of Analytical Results' shall not be reproduced except in full. without the written approval of JLC Laboratory, and It must not be used by client to claim product endorserftenf by NVLAP or any agency of the U.S. Government. This method is not applicable to samples containing large amounts of flee fibers below the resolution of the IM microscope. The value of this method is limited to the quantitative Identification of asbestos and the ee'nlquanhItaTlve deters lnatlort of asbestos content of bilk samples, expressed ae a percentage of the protected area. Ouartdtallon of asbestos content was determined with a visual volume estimate, a calibrated visual area estttrtate, andlor point counting procedure. CAUTION: Other fibers wilts optical properties similar to asbestos may give positive Ifiterferogces and will be considered asbestos under tots rftethodology. Also, PLM Is not consistently relieple In detecting asbestos In floor coverings and similar non.f labia organically-bound materials. Quantitative transmission electron microscopy Is currently the only method that can be used to detemtlne If this material can be considered or treated as r on-asbestos containing.

Page 4 of 4

11/15/01 THU 18:47 [TX/RX NO 53911

NYC-WTC 000120711

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