NYC-WTC_000232489

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; 07-29-02

CLIENT; Taylor Environmental Group, Inc.

PROJECT NAME: SCA/Stuyvesant HS 3rd Floor

PROJECT NUMBER: M477-15217/29881

SAMPLED BY: Client

SAMPLE DATE 07-28-02 DATE RECEIVED: 07-28-02 DATE ANALYZED: 07-28-02

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 20722 Inside Rm 301A by Entrance 4.4 3.4

02 20722 Inside Rm 303 by Entrance 5.9 3.4

03 20722 Inside Rm 305 by Entrance 4.0 3.4 04 20722 Inside Rm 325 by Entrance 5.4 3.4

05 20722 Inside Rm 301A by Entrance 4.4 3.6

06 20722 Inside Rm 303 by Entrance <3.6 3.6

07 20722 Inside Rm 305 by Entrance <3.6 3.6

08 20722 Inside Rm 325 by Entrance <3.6 3.6

09 20722 Field Blank <1-5 pg 1.5 pg

10 20722 Field Blank <1-5 pg 1.5 gg

NOTEl; 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 pg/ra’ and a permissible exposure level (PEL) of 50 pg/m^ for personal samples. NOTE 3: Blank units are in pg

CITY_21MC100_010245473

NYC-WTC_000232489