345 Chambers Street air test results and chain of custody,

NYC 9/11 Public Portal Document

L . l L. n33 U k_ iri .l .L ), 1.L N k-

I 104 E 25th Street, 10th Floor New York, NY 10010 TeL 212-353-8280

I Fax 212-353-8306

I REPORT DATE: 08-01-02

CLIENT: Taylor Environmental Group, Inc.

I PROJECT NAME. SCA/Stuyvesant HS 345 Chambcs Street, NY

I PROJECT NUMBER- M477-15217129881

SAMPLED BY: Client

I SAMPLE DATE: DATE RECEIVED: 07-31-02 03-01-02 DATE ANALYZED: OS-01-02 ~J SAMPLE MEDIA: Dust Wipe Sample ANALYSIS REQUIRED: Method EPA 305017420

I ANALYSIS RESULTS

I SAMPLE ID BATCH NO. SAMPLE DESCRIPTION LEAD CONCENTRATION DETECTION LIMIT (jrb/ ) (µS/a2)

I LWD-01 20822 Rm 60IA Ceiling Unitvent Duct 11.8 9.0

I LWD-02

FBL-1 20822

20822 Rm 615 Ceiling Unitvent 0- Duct

Field Blank <9.0 <9.0 µg 9.0

9.0 ytg

I FBL-2 20S22 Field Blank <9.0 µg 9.0 µg

NOTE 1: THE REPORTING LIMIT (RL) 1518.0 µg NOTE 2: HUD Guidelines for final clearance dust wipe samples: Floor 40 µg/ftl, Window sills 250 µg/&, Window wells 400 irg/ft', Exterior surfaces 200 NOTE 3: Blank units are is µg

CERTIFICATION AND SIGNATURES

ANALYSIS PERFORMED BY: rtil

REPORT PREPARED BY: i~

ATC cernfice that this report is an accurate and authentic report of results obtained from the tabor-to ' enalysis.

QUALITY ASSURANCE COORDINATOR: 2i 't'~

LABORATORY DIRECTOR: _I.j _— Atnericatt is accredited by the New York State Dcparmtcnt of Hmlth Environmental Laboratory Approval Program (FLAP) and by the analysis of lead paint. dust wipe, air and soil samples. (Ei.AP #10379), (ALHA 4100229). Industrial Hygiene Association (AIHA) to perform in

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NYC-WTC 000106741