NYC-WTC_000200096

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 R 22 20744 Rm 1039A Shelf <9.0 9.0

23 20744 Rm 1039 Floor W1 1-1 <9.0 9.0 .

24 20744 Rm 1039 Table <9.0 9.0

FB-3 20744 Field Blank <9.0 Mg 9.0 Fig

FB-4 20744 Field Blank <9.0 Mg 9.0 Mg

NOTE 1: THE REPORTING LIMIT (RL) IS 18.0 pg NOTE 2: HUD Guidelines for final clearance dust wipe samples: Floor 40 ng/fF, Window sills 250 Mg/ft3 Window wells 400 pg/fF, Exterior surfaces 800 pg/fF. NOTE 3: Blank units are in pg

CERTIFICATION AND SIGNATURES

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 COORDINATOR:

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), (AEHA #100229).

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CITY_21MC100_003266364

NYC-WTC_000200097