345 CHAMBERS STREET; Block: 16; Stuyvesant HS

NYC 9/11 Public Portal Document AT C ASSOCIATES,INC

I 104 E 25th Street, 10th Floor New York,NY 10010 Tel. 212-353-8280 I Fax 212-353-8306

REPORT DATE: 07-17-02

CLIENT: Taylor Environmental Group, Inc.

PROJECT NAME: SCAIStuyvcsant HS 345 Chambers St., 9th Floor I SAMPLED BY: Client

SAMPLE DATE 07-16-02

I DATE RECEIVED: DATE ANALYZED: 07-16-02 07-16-02

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

I .ANATYSIS RESULTS

SAMPLE BATCH SAMPLE DESCRIPTION LEAD DETECTION ID I 01 NO. CONCENTRATION (Esgtm3) LIMIT /(Jg/m' ) 20398 Rm 901 Inside Classroom Near Entrance to Corridor <3.1 3.1 I 02

03 20398

20398 Rm 903 Inside Classroom Near Entrance to Corridor <3.1 3.1 Rm 907 Inside Classroom Near Entrance to Corridor <3.1 3.1 I 04 05 20398 Rm 911 Inside Classroom Near Entrance to Corridor <3 _1 3.1 20398 Rm 9I3 Inside Classroom Near Entrance to Corridor <3.1 3.1 I 06 07 20398 Rm 925 Inside Classroom Near Entrance to Corridor <2.5 2.5 20398 Rm 901 Inside Classroom Near Entrance to Corridor <3.3 3.3 I 08 20398 Rm 903 Inside Classroom Near Entrance to Corridor <3.3 3.3 09 20398 Rm 907 Inside Classroom Near Entrance to Corridor <3.3 3.3 I 10 20398 Rm 911 Inside Classroom Near Entrance to Corridor <3.4 3.4 11 20398 Rm 91.3 Inside Classroom Near Entrance to Corridor <3.4 3.4 I 12 20398 Field Blank <1.5 µg 1.5 µg 13 20398 Field Blank, <1.5 µg 1.5 iag

[-I NOTE t:

I THE REPORTING LIMIT (RL) IS 3.0 µg NOTE 2: At the present time there are no regulatory levels or re4uiremente for indoor airborne lead in area samples. FIlowever, OSHA has established an action level of 30 µg+trt' and a permissible exposure level (PEt.') of 50 µg/ms for personul samples.

I NOTE 3: Blank units are inµg I NYC-WTC 000107052