NYC-WTC_000196486

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: 345 Chambers St.

PROJECT NO: 19125-0246 SAMPLED BY: H. Antonyan

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

SAMPLE MEDIA: S Air Samples ANALYSIS REQUIRED: Method NIOSH 7082

ANALYSIS RESULTS

SAMPLE BATCH SAMPLE DESCRIPTION LEAD DETECTION ID NO. CONCENTRATION LIMIT (gg/m’) Oi 9689 1st Floor Lobby <0.2 0.2 02 9689 2nd Floor Lobby <0.2 0.2 03 9689 Inside the Pool Area <0.2 0.2 04 9689 Inside the Auditorium <0.2 0.2 05 9689 Outside the Building North Side <0.2 0.2 06 9689 Outside,.die Building East Side <0.2 0.2 ■ -

07 9689 5 th Fiobr Cafeteria.. <0.2 0.2 08 9689 3rd Floor Aux. GYM <0.2 0.2 09 9689 9th Floor Rm 940 <0.2 0.2

10 9689 10th Floor Rm 1001 <0.2 0.2 11 9689 Field Blank <1-5 gg 1.5

12 9689 Field Blank <1-5 gg 1.5

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

NOTE2: _ _ ... 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 ngZiiP and a permissible exposure level (PEL) of 50 ugZin’for personal samples.

CITY_21MC100_003056538

NYC-WTC_000196487