NYC-WTC_000197644

NYC 9/11 Public Portal Document

Mar 11 02 03:IGa PSC Analatical Services G103219GG7 p-s

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING • EPA/NVLAP101262-0 • NY DOhWELAC 10903 ■NJ DEPPA02O •AIHAACCREDITATIONNO. 100439 • PA OEP 06-353 •C1DPHPH-Q238 ‘NO OENR599

ANALYTICA/L SERVICES Analytical Results for ATC Associates WorkOrder: RO2030O45 Client Reference: 19125-0246

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

Client ID: M3 ATC-0227-STY Lab ID: -03A Date Sampled: 2/27/02 Matrix: Filter Air Vol.(L): 960 Aluminum 1.55 0.00161 1 N7300 MCE 03/08/2002 TH Cadmium <0.200 <0.000208 0.2 N7300 MCE 03/08/2002 TH Chromium 0.626 0.000652 0.2 N7300 MCE 03/08/2002 TH Cobalt <0.100 <0.000104 0.1 N7300 MCE 03/08/2002 TH Copper <0.200 <0.000208 0.2 N7300 MCE 03/08/2002 TH Iron <2.00 <0.00203 2 N7300 MCE 03/08/2002 TH Magnesium <1.30 <0.00135 1.3 N7300 MCE 03/03/2002 TH Manganese <0.300 <0.000312 0.3 N7300 MCE 03/08/2002 TH Molybdenum <1.00 <0.00104 1 N73D0 MCE 03/08/2002 TH Nickel <0.200 <0.000208 0.2 N7300 MCE 03/08/2002 TH Zinc <0.500 <0.000521 0.5 N7300 MCE 03/08/2002 TH

Client ID: M4 ATC-0227-STY Lab ID: -04A Date Sampled: 2/27/02 Matrix: Filter AirVol.(L):NA Aluminum 1.63 1 N7300 MCE 03/08/2002 TH Cadmium <0.200 0.2 N7300 MCE 03/08/2002 TH Chromium 0.486 0.2 N7300 MCE 03/08/2002 TH Cobalt <0.100 0.1 N73D0 MCE 03/08/2002 TH Copper <0.200 0.2 N7300 MCE 03/08/2002 TH Iron <2.00 2 N7300 MCE 03/08/2002 TH Magnesium <1.30 1.3 N7300 MCE 03/08/2002 TH Manganese <0.300 0.3 N7300 MCE 03/08/2002 TH Molybdenum <1.00 1 N7300 MCE 03/08/2002 TH Nickel <0.200 0.2 N7300 MCE 03/08/2002 TH Zinc <0.500 0.5 N7300 MCE 03/08/2002 TH

(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_000197645