NYC-WTC_000232494

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: 08-01-02

CLIENT: Taylor Environmental Group, Inc.

PROJECT NAME: SCA/Stuyvesant HS 6th Floor

PROJECT NUMBER: M477-15217/29881

SAMPLED BY: Client

SAMPLE DATE 08-01-02 DATE RECEIVED: 08-01-02 DATE ANALYZED: 08-01-02

SAMPLE MEDIA: Air Samples ANALYSIS REQUIRED: Method NIOSH 7082

ANALYSIS RESULTS

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

01 20824 In Library at Doorway <3.6 3.6

02 20824 Rm 615E at Doorway <3.6 3.6

03 20824 In Library at Doorway <3.1 3.1

04 20824 Rm 615E at Doorway <3.1 3.1

FB-5 20824 Field Blank <1-5 1-5 ng FB-6 20824 Field Blank <1-5 ng 1.5 ng

NOTE 1: THE REPORTING LIMIT (RL) IS 3.0 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 ng/tn' and a permissible exposure level (PEL) of 50 ng^m’ for personal samples. NOTE 3: Blank units are in ng

CITY_21MC100_010245493

NYC-WTC_000232494