NYC-WTC_000222688

NYC 9/11 Public Portal Document

GlO-921-9667 p. 5 Maa 01 02 12:46p PSC

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING •ePAWLA? 101262-0 • NY DOHWELAC 10903 •MJOEP PA020 ■AIH4ACCREDITATIONNO. 100439 • PA DEP 06-353 •CT DPHP1+023B •NC DeNR 599

ANALYTICAL SERVICES Analytical Results for

ATC Associates

WorkOrder: R02040896 Client Reference: 19125-0290, Metals

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

Client ID: M3 ATC-0419-M894 Lab ID: -03A Date Sampled: 4/19/02 Matrix: Filter Air Vol.(L): 1200

Aluminum <1.00 <0.000833 1 N7300 MCE 04/30/2002 AJ0 Cadmium <0.200 <0.000167 0.2 N7300 MCE 04/30/2002 AJB Chromium 0.498 0.000415 ■ 0.2 N7300 MCE 04/30/2002 AJB Cobalt <0.100 <0.0000833 0.1 N7300 MCE 04/30/2002 AJB Copper <0.200 <0.000167 0.2 N7300 MCE 04/30/2002 AJB Iron <2.00 <0.00167 2 N7300 MCE 04/30/2002 AJB Lead <0.300 <0.000250 0.3 N7300 MCE 04/30/2002 AJB Magnesium <1.30 <0.00108 1.3 N7300MCE 04/30/2002 AJB Manganese <0.300 <0.000250 0.3 N7300 MCE 04/30/2002 AJB Molybdenum <1.00 <0.000833 1 N7300 MCE 04/30/2002 AJB ' Nickel <0.200 <0.000167 0.2 N7300MCE ■ 04/30/2002 AJB Zinc <0.500 <0.000417 0.5 N7300 MCE 04/30/2002 AJB

Client ID; M4 ATC-0419-M894 Lab ID: -04A Date Sampled: 4/19/02 Matrix: Filter AirVol.(L): 1200 Aluminum <1.00 <0.000833 1 N7300 MCE 04/30/2002 AJB Cadmium <0.200 <0.000167 0.2 N7300 MCE 04/30/2002 AJB Chromium 0.583 0.000486 0.2 N7300 MCE 04/30/2002 AJB

Cobalt <0.100 <0.0000833 0.1 N7300 MCE 04/30/2002 AJB Copper <0.200 <0.000167 0.2 N7300 MCE 04/30/2002 AJB

Iron <2.00 ' <0.00167 2 N7300 MCE 04/30/2002 AJB

Lead <0.300 <0.000250 0.3 N7300 MCE 04/30/2002 AJB Magnesium <1.30 <0.00108 1.3 N7300 MCE 04/30/2002 AJB Manganese <0.300 <0.000250 0.3 N7300 MCE 04/30/2002 AJB Molybdenum <1.00 <0.000833 1 N7300 MCE 04/30/2002 AJB Nickel <0.200 <0.000167 0.2 N7300 MCE 04/30/2002 ' AJB

Zinc <0.500 , <0.000417 0.5 N7300 MCE Q4/3Q/2OQ2 AJB

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