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345 Chambers Street air test results and chain of custody,

Machine-extracted title · confidence 98%

A comprehensive chain of custody document containing final asbestos and lead air test results for the 345 Chambers Street school cleanup project.

NYC-WTC_000106418–000106762

Folder label: “345 CHAMBERS STREET; 16/1

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NYC 9/11 Public Portal Document

AIC ASSOCIAU'S, 11f L 104 E 25th Street, 10th Floor New York,NY 10010 TeL 212-353-8280 Fax 212-353-8306

REPORT DATE: 07-26-02

CLIENT: Taylor Environmenral Group, Inc.

PROJECT NAME: SCA/Stuyvesant HS 345 Chambers Street, NY

PROJECT NUMBER M477-15217/29881

SAMPLED BY: Client

SAMPLE DATE: 07-26-02 DATE RECEIVED: 07-26-02 DATE ANALYZED: 07-26-02

SAMPLE MEDIA: Dust Wipe Sample ANALYSIS REQUIRED: Method EPA 3050/7420

ANALYSIS RESULTS

BATCH SAMPLE DESCRIPTION LEAD DETECTION SAMPLE CONCENTRATION LIMIT ID NO. (11Wft') (µEy'ftz)

9.4 9.0 W-01 20677 Rm 435 South Side Left Unitvcnt (Back Wall) 20677 Rm 435 South Side Right Unitvent (Back Wall) 14.6 9.0 W-02 20677 Rm 450 Unitvent (Back Wall) <9.0 9.0 W-03 20677 Rm 315 South Side Left Unitvcnt (Back Wall) <9.0 9.0 W-04 20677 Rm 315 South Side Right Unitvcnt (Back Wall) <9.0 9.0 W-05 20677 Rm 307 South Side Left Unitvent (Back Wall) <9.0 9.0 W-06 20677 Rm 307 South Side Middle Unitveat (Back Wall) <9.0 9.0 W-07 <9.0 9.0 W-08 20677 Rm 307 South Side Right Unitivent (Back Wall)

W-09 20677 Field Blank <9.0 µg I 9.0 µg W-10 20677 Field Blank <9.0 µg 710 µg

NOTE): THE REPORTING LIMIT (RL) IS 18.0 µg NOTE 2: HUD Guidelines for final clearance dust wipe samples: Floor 40 µg%Rz, Window :ills 250 µg/ft . Window wells 400 ugift, Exiaior snurfaccs 800 µg/ft'. NOTE 3: Blank units are in µg

NYC-WTC 000106727

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NYC-WTC_000106727Source: NYC Law Department, mirrored locally

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