NYC-WTC_000203551

NYC 9/11 Public Portal Document

Sep ID D2 12:48p PSC eiO-921-9SG7 p. 11

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING PSC ■ EPAAWLAP 101262-0 • NY DOHAIEIAC 1OS03 • NJ DcP PA020 •AIHA ACCREDITATION NO 100439 • PA DEP 06-353 • CT DPH PH-0238 •NC DENR599 Analytical Results for ATC Associates WorkOrder; RO2O81OO9 Client Reference: 19125-0343

Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst (ug) (mg/m’) ; (ppm) (ug)

Client ID; ATC-0S29-126M-M7 7/\ Lab ID: -07A Date Sampled: 8/29/02 Matrix: Filter Air Vot.(L): NA Aluminum 1.10 1 N7300 MCE 09/08/2002 AJB Cadmium <0.200 0.2 N7300 MCE 09/08/2002 AJB —Chromium 0.300 0.2 N7300 MCE 09/08/2002 AJB Cobalt <0.100 0.1 N7300 MCE 09/08/2002 AJB Copper <0.200 0.2 N7300 MCE 09/08/2002 AJB Iron <2.00 2 N7300 MCE 09/08/2002 AJB Lead <0.300 0.3 N7300 MCE 09/03/2002 AJB Magnesium <1.30 1.3 N7300 MCE 09/08/2002 AJB Manganese <0.300 0.3 N7300 MCE 09/00/2002 AJB Molybdenum <1.00 1 N7300 MCE 09/08/2002 AJB Nickel <0.200 0.2 N730O MCE 09/08/2002 AJB Zinc <0.500 0.5 N7300 MCE 09/08/2002 AJB

(a) Analysis indicates possible breakthrough; back section result is greater than 0% of the front section result.

General Notes <. Less than the indicated limit of detection (LOD). —. Information not available or not applicable. Back sections were checked and showed no significant breakthrough.

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NYC-WTC_000203554