NYC-WTC_000232502

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: 08-09-02

CLIENT: Taylor Environmental Group, Inc.

PROJECT NAME: SCA/Stuyvesant HS 2nd Floor

PROJECT NUMBER: M477-15217/29881

SAMPLED BY: Client

SAMPLE DATE 08-08-02 DATE RECEIVED: 08-09-02 DATE ANALYZED: 08-09-02

SAMPLE MEDIA: Air Samples ANALYSIS REQUIRED: Method NIOSH 7082

ANALYSTS RESULTS

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

AL-01 21025 Rm 250 by Entrance <2.0 2.0

AL-02 21025 Rm 251 by Entrance <2.0 2.0-

Al-03 21025 Rm 273 by Entrance <2.0 2.0

BL3 21025 Field Blank tig 1-5 'ng

BL4 21025 Field Blank <1-5 ug 1.5 ng

AL-04 21025 In Rm 103 Center <1.1 1.1

AL-05 21025 In Rm 105 by Door 1.1

AL-06 21025 In Rm 103 Center <1.3 1.3

Al-07 21025 In Rm 105 by Door <1.3 1.3

BLl 21025 Field Blank < L5 pg 1.5 ng

BL2 21025 Field Blank <1-5 ng 1-5 ng

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

CITY_21MC1OO_O1O245528

NYC-WTC_000232502