NYC-WTC_000232627

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: 07-29-02 DATE ANALYZED: 07-29-02

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 20726 Inside Room 313 Near Entrance to Hallway <3.1 3.1 02 20726 Inside Room 313 Near Entrance to Hallway <3.9 3.9 03 20726 Field Blank <1-5 ug L5 Mg 04 20726 Field Blank <1-5 Mg L5 Mg

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 pg/m’ and a permissible exposure level (PEL) of 50 pg/m’ for personal samples. NOTES: Blank units are in pg

CERTIFICATION AND SIGNATURES

ANALYSIS PERFORMED BY: <4 REPORT PREPARED BY:

ATC certifies that this report is an accurate and authentic report of results obtained from the laboratory analysis.

QUALITY ASSURANCE COORDINATOR:

LABORATORY DIRECTOR:

ATC is accredited by the New York State Department of Health Environmental Laboratory Approval Program (ELAP) and by the American Industrial Hygiene Association (AIHA) to perform analysis of lead in paint, dust wipes, air and soil samples. (ELAP #10879), (AIHA #100229).

CITY_21MC100_010234554

NYC-WTC_000232627