NYC-WTC_000199337

NYC 9/11 Public Portal Document Sep 11 02 04;15p PSC ElO-921-3GB7 P. 17

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING PSC imcii • EP/VNVLAP101262-0 •AIHAACCREDITATIONNO 100439 •NY DOHiNELAC 10903 • PA DEP 06-353 •NJOEPPA020 •CT D’H PH-D238 •hCOENR599 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) (“g)

Client ID: A1C-0904-42M-M3 Lab ID: -03A Date Sampled: 9/4/2002 Matrix: filter AirVoKL): 121)0

Aluminum <1,00 <0.000833 1 N730O MCE 09/10)2002 AJB Cadmium <0.200 <0,000167 0.2 N7300 MCE 09/10/2002 AJB Chromium 0.343 0.000286 0.2 N7300 MCE 09/10/2002 AJB Cobalt <0.100 <0.0000833 0.1 N73DD MCE 09/10/2002 AJB Copper 0,384 0.000320 0.2 M7300 MCE 03/10/2002 AJB Iron <2.00 <0.00167 2 N7300 MCE 09/10/2002 AJB i 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

Client ID: ATC-0904-42M-M4 Lab ID: -04A Date Sampled: 9/4/2002 Matrix: Filter Air Vol.(L).- NA

Aluminum <1.00 1 N730O MCE 09/10/2002 AjB Cadmium <0.200 0.2 N7300 MCE 09/10/2002 AJB Chromium 0.315 0.2 N73O0 MCE 09/10/2002 AJB Cobalt <0,100 0,1 N7300MCE 09/10/2002 AJB Copper 0,274 0,2 N73O0 MCE 09/10/2002 AJB Iron <2,00 2 N73O0 MCE 09/10/2002 AJB Lead <0.300 0.3 N73Q0 MCE 09/10/2002 AJB Magnesium <1.30 1.3 N730D MCE 09/10/2002 AJB Manganese <0.300 0.3 N73O0 MCE 09/10/2002 AJB Molybdenum <1.00 1 N73O0 MCE 09/10/2002 AJB Nickel <0.200 0.2 N7300 MCE 09/10/2002 AJB Zinc <0.500 0.5 N730O MCE 09/10/2002 AJB

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NYC-WTC_000199338