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

NYC 9/11 Public Portal Document

ATC: ASSUCIA'1'ES, I N C: 104 E 25th Street, 10th Floor New York, NY 10010 Tel. 212-353-8280 Fax 212-353-8306 •

REPORT DATE: 09-18-02

CLIENT: ATC Associates Inc. - New York

PROJECT NAME: DEP Dust Clean-Up Program 125 Cedar Street, NY, NY JOB #: 15-22906.0002

SA1IMIPLED BY: T. Lee

SAMLE DATE: 10-18-02 DATE RECEIVED: 09-18-02 DATE ANALYZED: 09-18-02

SAMPLE MEDIA: Dust Wipe Sample ANALYSIS REQUIRED: Method EPA 3050/7420

SAMPLE BATCH SAMPLE DESCRIPTION LEAD DETECTION ID NO. CONCENTRATION LIMIT (µg1 ) (µPT) •

01 10056 Field Blank <9.0 9.0

02 10056 12N-L-F <9.0 9.0

03 10056 11N-L-F 25.7 9.0

04 10056 10S-L-N <9.0 µg 9.0 µg

NOTE 1: THE REPORTING LIMIT (RL) IS 18.0 µg NOTE 2: HUD Guidelines for final clearance dust wipe samples: Floor 40 µg/ft2, Window sills 250 µg/ft Window wells 400 µg/ft2, Exterior surfaces 800 µg/ft2. N10TE 3: Blank units are in µg

CERTIFICATION AND SIGNATURES

ANALYSIS PERFORMED BY: i.•

REPORT PREPARED BY: z'r'L'U

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

QUALITY ASSURANCE COORDINATOR: LL•t •

LABORATORY DIRECTOR: _ _tj f

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).

NYC-WTC 000131773