Lead dust wipe analysis results, 125 [name], September 2002

NYC 9/11 Public Portal Document

ATC ASSOCIATES,INC 104 E 25th Street, 10th Floor New York,NY 10010 Tel. 212-353-8280 Fax 212-353-8306

2N-L-F 10047 Dust Wipe 16.5 9.0

Field Blank 10047 Blank <9.0 µg 9.0 µg 12N-L-H 10047 Dust Wipe 10.3 9.0 12N-L-W 10047 Dust Wipe <9.0 9.0 12N-L-F 10047 Dust Wipe 31.2 9.0

NOTE 1: THE REPORTING LIMIT (RL) IS 18.0 µg NOTE 2: HUD Guidelines for final clearance dust wipe samples: Floor 40 µg/ft, Window sills 250 µg/ft, Window wells 400 µg/ft2, Exterior surfaces 800 µg/R2.

NOTE 3: Blank units are in µg

CERTIFICATION AND SIGNATURES

0 ANALYSIS PERFORMED BY:

REPORT PREPARED BY:

ATC certifies that this report is an accurate and authentic report of results obtained from the laboratory analysis.

QUALITY ASSURANCE COORDINA

LABORATORY DIRECTOR:

ATC is accredited by the New York State Department of Health Environmental Laboratory Approval Program (ELAP) and by the American Industrial Hygiene Association (AIHA) to perform analysis of lead in paint, dust wipes, air and soil samples. (ELAP #10879), (AIHA #100229).

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NYC-WTC 000131761