NYC-WTC_000199337

NYC 9/11 Public Portal Document Sep 11 02 04:14p PSC 610-921-9GB7 p. 16

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING FSC •NYDOH/NELAC 10303 • NJ DEP PA020 • EPAM'/LAP 101262-0 • AIHA ACCREDITATION NO. 100439 •PA DEP 06-353 • CT DPH Pt+023B •NC DENR599 Analytical Results for

ATC Associates WorkOrder; R02090192 Client Reference: 19125-0342

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

Client TD; ATC-0904-42M-M1 Lab ID: -01A Date Sampled: 9/4/2002 Matrix: Filter AirVol.(L); 1200_^ Aluminum 2.70 0,00225 1 N730O MCE 09/08/2002 AJB Cadmium <0.200 <0.000167 0.2 N7300 MCE 09/08/2002 AJEJ Chromium 0.673 0.000560 0.2 N7300 MCE 09/08/2002 AJB Cobalt <0.100 <0.0000833 0,1 N7300 MCE 09/08/2002 AJE3 Copper <0.200 <0.000167 0.2 N7300 MCE 09/08/2002 AJB Iron 4.79 0.00399 2 N73O0 MCE 09/08/2002 AJB J Lead <0.300 <0.000250 0.3 N7300 MCE 09/08/2002 AJO Magnesium <1.30 <0.00108 1.3 N7300 MCE 09/08/2002 AJB Manganese <0.300 <0.000250 0.3 N7300 MCE 09/08/2002 AJB Molybdenum <1 00 <0.000833 1 N7300 MCE 09/08/2002 AJ3 Nickel <0.200 <0.000167 0.2 N73O0 MCE 09/08/2002 AJB Zinc <0.500 <0.000417 0.5 N73O0 MCE 09/06/2002 AJB

Client ID: ATC-0904-42M-M2 Lab ID: -02A Date Sampled; 9/4/2002 Matrix: Filter Air Vol.(L): 1200 Aluminum <1.00 <0.000833 1 N7300 MCE 09/10/2002 AJB Cadmium <0.200 <0.000167 0.2 N7300 MCE 09/10/2002 AJB Chromium 0.393 0.000327 0.2 N7300 MCE 09/10/2002 AJB Cobalt <0.100 <0.0000633 0.1 N7300 MCE 09/10/2002 AJB , Copper 0.204 0.000170 0.2 N7300 MCE 09/10/2002 AJB Iron <2.00 <0.00167 2 N7300 MCE 09/10/2002 AJB Lead <0.300 <0,000250 0.3 N7300 MCE 09/10/2002 AJB Magnesium <1.30 <0.00108 1.3 N7300 MCE 09/10/2002 AjB Manganese <0.300 <0.000250 0.3 N7300 MCE 09/10/2002 AJB Molybdenum <1.00 <0.000833 1 N7300 MCE 09/10/2002 AJB Nickel <0.200 <0.000167 0.2 N7300 MCE 09/10/2002 AJB Zinc <0.500 <0.000417 0.5 N7300 MCE 09/10/2002 AJB

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NYC-WTC_000199337