Document identifier, DEP Box 33, Oct 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

52 22019 ION -L -W 14.6 9.0

53 22019 ION - L - H 65.9 9.0 54 22019 ION - L - F 138.8 9.0

55 22019 PH -L -W 19.3 9.0

56 22019 PH -L -H 212.4 9.0 57 22019 PH - L - F 100.7 9.0

58 22019 I2SW - L - W 9.3 9.0

59 22019 12SW - L - H 68.3 9.0

60 22019 12SW - L - F 547.0 9.0

61 22019 12SG - L - W 22.0 9.0

62 22019 12SG - L - H 32.2 9.0

63 22019 I2SG - L - F 97.5 9.0

64 22019 2N -L -W <9.0 9.0

65 22019 2N - L - H 18.6 9.0

66 22019 2N - L - F <9.0 9.0

NOTE 1: THE REPORTING LIMIT (RL) IS 18.0 µg

NOTE 2: HUD Guidelines for final clearance dust wipe samples: Floor 40 p.glti 2. Window sills 250 µg/ft 2, Window wells 400 µg/ft=, Exterior surfaces 800 Itg/ft'- .

NOTE 3: Blank units are in µg

CERTIFICATION AND SIGNATURES

2 ANALYSIS PERFORMED BY:

REPORT PREPARED BY:

ATC certifies that this report is an accurate and authentic repo"f 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 (AIRA) to perform analysis of lead in paint, dust wipes, air and soil samples. (ELAP #10879), (AIHA # 100229).

NYC-WTC 000097207