NYC-WTC_000229458

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

26 9789 AHV #3 Library Return 466.7 9.0 27 9789 R-1 Auditorium Supply Lining 130.2 9.0 28 9789 R-1 Auditorium Return Floor 114.6 9.0 31 9789 Blank <9.0 pg 9.0 pg 32 9789 Blank <9.0 pg 9.0 pg

NOTE I: THE REPORTING LIMIT (RL) IS 18.0 pg NOTE 2: HUD Guidelines for final clearance dust wipe samples: Floor 40 Window sills 250 pg/fP, Window wells 400 Exterior surfaces 800 pg/ft^ 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: /W.L . ATC Environmental Inc. (ATC) is accredited by the New York State Department of Health Environmental Laboratory Approval Program (NYS DOH ELAP) to perform analysis of lead in paint and dust wipes (ELAP #10879).

CITY_21MC100_002902509

NYC-WTC_000229459