NYC-WTC_000198912

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

REPORT DATE: 02-25-02

CLIENT: NYC BOE

PROJECT ADDRESS: 201 Warren St.

PROJECT NO: 19125-0297 SAMPLED BY: Daniel Finkley

SAMPLE DATE: 02-22-02 DATE RECEIVED: 02-23-02 DATE ANALYZED: 02-23-02

SAMPLE MEDIA: Air Samples ANALYSIS REQUIRED: Method NIOSH 7082

ANALYSIS RESULTS

SAMPLE BATCH SAMPLE DESCRIPTION LEAD DETECTION ID NO. CONCENTRATION LIMIT (gg/m’)

01 9690 Field Blank r <1-5 (xg 1.5 02 9690 Field Blank <1.5 gg 1.5 03 9690 Cafeteria North East Quad <0.2 0.2 04 9690 1st Floor Hallway Outside Cafeteria <o.i 0.2 05 9690 Playground North End <0.2 0.2 06 9690 Playground South End <0.2 0.2 07 9690 2nd Floor Auditorium Rm 217 Rear Walkway <0.2 0.2 08 9690 3rd Floor GYM Rm 315 West Quad Near Outlet <0.2 0.2

09 9690 5th Floor South End of Hallway <0.2 0.2 10 9690 4th Floor South End of Hallway <0.2 0.2 11 9690 2nd Floor South End of Hallway <0.2 0.2 12 9690 Roof - Central Area <0.2 0.2

NOTE 1: THE REPORTING LIMIT (RL) IS 3.2 pg

NOTE 2: At the present time there are no regulatory levels or requirements for indoor airborne lead in area samples. However, OSHA has established an action level of 30 p.g/m’ and a permissible exposure level (PEL) of 50 gg/m’ for personal samples.

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NYC-WTC_000198912