345 CHAMBERS STREET; Block: 16; Stuyvesant HS

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

17 20504 Field Blank <1.5 g 1.5 ug

18 20504 Field Blank <1.5 ug 1.5 ug

NOTE 1: TJIE REPORTING LIMIT (RL) IS 3.0 ug NOTE 2: At the prescm time there arc no regulatory levels or requirsmentr for indoor sirbnrne lead in area samples. However. OSHA has established an action level of 30 µJm° and a permissihlc exposure level (PEL) of 50 uJmt for personal sampici. NOTE 3. Blink units arc in µg

CERTIFICATION ANT) SIGNATURES

ANALYSIS PERFORMED BY:

REPORT PREPARED BY:

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

QUALITY ASSURANCE COORDINATOR:

LABORATORY DIRECTOR: t.// t' -

ATC is aeeredited by the New York State Department of Health Environmental Laboratory Approval Program (ELAP) and by the American Industrial hygiene Asa ciation (All-IA) to perform analysis of lead in paint, dust a ipac. at: and soil samples. (ELAP 410879), (AMA is100229)

NYC-WTC 000107074