NYC-WTC_000199064

NYC 9/11 Public Portal Document Mar 14 02 10;33a PSC Rnalytical Services e109219967 p. a

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING •EPAjNVLAP 101262-0 • NY DOI+NELAC tosos • NJ DEF PAOZO •AIHA ACCREDITATION NO. 100439 • PA DEP 06-353 •CT DPH Pl+0238 •NCDENR 599 Analytical Results ANALYTICAL SERVICES for ATC Associates WorkOrder: R02030323 Client Reference: 19125-0279

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

Client ID: Ml ATC-0305-234M Lab ID: -01A Date Sampled: 3/5/02 Matrix: Filter AirVol,(L): 1200

Aluminum <1.00 <0.000833 1 N7300 MCE 03/12/2002 TH Cadmium <0,200 <0.000167 0.2 N7300 MCE 03/12/2002 TH Chromium 1 0.390 0.000325 - 0.2 N7300 MCE 03/12/2002 TH Cobalt <0.100 <0.0000833 0.1 N7300 MCE 03/12/2002 TH Copper <0.200 <0.000167 0.2 N7300 MCE 03/12/2002 TH Iron <2.00 <0.00167 2 N7300 MCE 03/12/2002 TH Lead <0.300 <0.000250 0.3 N7300 MCE 03/12/2002 TH Magnesium <1.30 <0.00108 1.3 N7300 MCE 03/12/2002 TH Manganese <0.300 <0.000250 0.3 N7300 MCE 03/12/2002 TH Molybdenum <1.00 <0.000833 1 N73O0 MCE 03/12/2002 TH Nickel <0.200 <0.000167 0.2 N7300 MCE 03/12/2002 TH Zinc <0.500 <0.000417 0,5 N7300 MCE 03/12/2002 TH

Client ID: M2 ATC-0305-234M LablD: -02A Date Sampled: 3/5/02 Matrix: Filter AirVol,(L): 1200 Aluminum <1.00 <0.000833 1 N7300 MCE 03/13/2002 TH Cadmium <0.200 <0.000167 0.2 N7300 MCE 03/13/2002 TH Chromium 1.496? 0.000413 0.2 N7300 MCE 03/13/2002 TH Cobalt <0.100 <0.0000833 0.1 N7300 MCE 03/13/2002 TH Copper <0.200 <0.000167 0.2 N7300 MCE 03/13/2002 TH Iron <2.00 <0.00167 2 N7300 MCE 03/13/2002 TH Lead <0,300 <0,000250 0.3 N7300 MCE 03/13/2002 TH Magnesium <1.30 <0.00108 1.3 N7300 MCE 03/13/2002 TH Manganese <0,300 <0,000250 0.3 N73D0 MCE 03/13/2002 TH Molybdenum <1.00 <0.000833 1 N7300 MCE 03/13/2002 TH Nickel <0.200 <0.000167 0.2 N730Q MCE 03/13/2002 TH Zinc <0.500 <0.000417 0.5 N7300 MCE 03/13/2002 TH

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NYC-WTC_000199064