NYC-WTC_000232620

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: 07-22-02

CLIENT: Taylor Environmental Group, Inc.

PROJECT NAME: SCA/Stuyvesant HS 350 Chambers Street 7th Floor

PROJECT NUMBER: M477-15217-29881

SAMPLED BY: Client

SAMPLE DATE 07-20-02 DATE RECEIVED: 07-20-02 DATE ANALYZED: 07-20-02

SAMPLE MEDIA: Air Samples ANALYSIS REQUIRED: Method NIOSH 7082

ANALYSIS RESULTS

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

01 20517 Inside Room 701 at Entrance to Hallway 3,3 3.1 02 20517 Inside Room 701A at Entrance to Hallway <3.1 3.1

03 20517 Inside Room 703 at Entrance to Hallway 3.1 04 20517 Inside Room 707 at Entrance to Hallway <3.1 3.1 05 20517 Inside Room 705 at Entrance to Hallway <3.1 3.1

06 20517 Inside Room 709 at Entrance to Hallway <3.1 3.1

07 20517 Inside Room 715 at Entrance to Hallway <3.1 3.1

08 20517 Inside Room 717 at Entrance to Hallway <3.1 3.1 09 20517 Inside Room 727 at Entrance to Hallway <3.1 3.1

19 20517 Field Blank <1-5 pg 1 -5 pg ’

20 20517 Field Blank <1.5 pg 1.5 pg -

NOTE 1: THE REPORTING LIMIT (RL) IS 3.0 gg NOTE 2; At the present time there are no regulatory levels or requiremetits for indoor airborne lead in area samples. However, OSHA has established an action level of 30 gg/m’ and a permissible exposure level (PEL) of 50 gg/m’ for personal samples. NOTE 3: Blank units are in gg

CITY_21MC100_010234498

NYC-WTC_000232620