NYC-WTC_000189363

NYC 9/11 Public Portal Document

PSC Rnalaticsl Services 6103219SG7 p. G Mar 20 02 08:05a

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING • EPAWIAP101262-0 • NY DaHfflELAC 10903 •NJDEP PA020 " AIHA ACCREDITATION ND. 100439 • PA DEP 06-353 •CT DPHPH.0;3e •NO DENR599

ANALYTICAL SERVICES Analytical Results for ATC Associates WorkOrder; R02030497 Client Reference: 19125-0290

An alyte Concentration Limit of Test Date Analyzed Detection Method /Analyst (ug) ' (ing/m’> ; (ppm) (ug)

Client ID; MS ATC-0308-.MS94 Lab ID: -OSA Date Sampled: 3/8/02 Matrix: Filter Air Vol.(L): NA Aluminum •=1.00 1 N7300 MCE 03/19/2002 TH Cadmium <0.200 0.2 N7300 MCE 03/19/2002 TH enromium 0.261^ 0.2 N73O0 MCE 03/19/2002 TH Cobalt <0.100 0.1 N7300 MCE 03/19/2002 TH Copper <0.200 0.2 N7300 MCE 03/19/2002 TH Iron <2.00 2 N7300 MCE 03/19/2002 TH Magnesium <1.30 1.3 N73O0 MCE 03/19/2002 TH Manganese <0.300 0.3 N7300 MCE 03/19/2002 TH Molybdenum <1.00 1 N7300 MCE 03/19/21302 TH Nickel <0.200 0.2 N73D0 MCE 03/19/2002 TH Zino <0.500 0.5 N7300 MCE 03/19/2002 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_000189365