345 CHAMBERS STREET; Block: 16; Stuyvesant HS

NYC 9/11 Public Portal Document A t L ASSOCIATES,INC

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

I Fax 212-353-8306

I REPORT DATE: 07-16-02

I CLIENT:

PROJECT NAME: Taylor Environmental Group, Inc.

SCA/Stuyvesant HS 345 Chambers St., 10th Floor I] SAMPLED BY: Client SAMPLE DATE 07-15-02 n DATE RECEIVED: DATE ANALYZED: 07-16-02 07-16-02 SAMPLE MEDIA: Air Samples I ANALYSIS REQUIRED: Method NIOSH 7082

I ANALYSIS RESULTS

SAMPLE BATCH SAMPLE DESCRIPTION LEAD DETECTION ID I 01 No. CONCENTRATION (FLE' rri) LIMIT (tg/rnr) 20392 Inside Classroom 1010 Near Entrance to Hallway <3.1 3.1 I 02 03 20392 20392 Inside Classroom 1006 Near Entrance to Hallway <2.1 2.1 Inside Classroom 1004 Near. Entrance to Hallway <2.3 2.3 I 04 05 20392 20392 Inside Classroom 909 Near Entrance to Hallway <2.5 2.5 Inside Classroom 901 Near Entrance to Hallway <2.5 2.5 I 06 07 20392 20392 Inside Classroom 1010 Near Entrance to Hallway <3.4 3.4 Inside Classroom 907 Near Entrance to Hallway <6.3 6.3 I 08 09 20392 20392 Inside Classroom 911 Near Entrance to Hallway <6.3 6.3 Inside Classroom 913 Near Entrance to ILallway <6.3 6.3 I 10 11 20392 20392 Field Blank <1.5 µg 1.5 µg Field Blank <1.5 µg 1.5 µg I I NOTE ] THE REPORTING LIMIT (RL) IS 3.0 µg NOTE 2: At the present time there arc no regulatory levels or requirement for indoor airborne icad in area samples. However, I established an action level of 30 µg/rn' and a permissible exposure level (PET..) of 50 µgun for personal samples. NOTE 3: Blank units arc in µg OSHA has

I I NYC-WTC 000107050