NYC-WTC_000196512

NYC 9/11 Public Portal Document

Apr 15 02 12:15p PSC 610-921-9667 p. 5

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING •EPA/NVLAP 101262-0 • NY DOHMLAC10903 ■ NJ DEP PAQ2a • AIHA ACCREDITATION NO. 100439 •PA DEP 06-353 <CTDPHPH-Q238 •NCDENR59S

ANALYTICAL SERVICES Analytical Results for ATC Associates

WorkOrder; R02O40469 Client Reference: 19125-0279, Metals

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

Client ID: ATC-0409-234M-M3 Lab ID: -03 A Date Sampled: 4/9/02 Matrix: Filter AirVoI.(L); 1200 -Aluminum 1.61 0,00134^ 1 N7300 MCE 04/11/2002 AJB Cadmium <0.200 <0.000167 0.2 N7300 MCE 04/11/2002 AJB ------ Chromium 0.582 0.000485- 0.2 M7300 MCE 04/11/2002 AJB cobalt <0.100 <0.0000833 0.1 N7300 MCE 04/11/2002 AJB Copper <0.200 <0.000167 0.2 N7300 MCE 04/11/2002 AJB .— Iron 2.11 0.00176------ 2 N7300 MCE 04/11/2002 AJB Lead <0.300 <0.000250 0.3 N7300 MCE 04/11/2002 AJB Magnesium <1.30 <0.00108 1.3 N73O0 MCE 04/11/2002 AJB Manganese <0.300 <0.000250 0.3 N7300 MCE 04/11/2002 AJB Molybdenum <1.00 <0.000833 1 N7300 MCE 04/11/2002 AJB Nickel <0.200 <0.000167 0.2 N7300 MCE 04/11/2002 AJB Zinc <0.500 <0.000417 .0.5 N7300 MCE 04/11/2002 AJB

Client ID: ATC-0409-234M-IV14 (ZooV Lab ID; -04A Date Sampled; 4/9/02 Matrix: Filter AirVol.(L): 1200 Aluminum 1.48 0.00123 '— 1 N730O MCE 04/11/2002 AJB Cadmium <0.200 <0.000167 0.2 N73D0 MCE 04/11/2002 AJB --— Chromium 0.502 0.000418 0.2 N730O MCE 04/11/2002 AJB Cobalt <0.100 <0.0000833 0.1 N7300 MCE _ 04/11/2002 AJB Copper <0.200 <0.000167 0.2 N7300 MCE 04/11/2002 AJB Iron <2.00 <0.00167 2 N7300 MCE 04/11/2002 AJB Lead <0.300 <0.000250 0.3 N730O MCE 04/11/2002 AJB Magnesium <1.30 <0.00108 1.3 N7300 MCE 04/11/2002 AJB Manganese <0.300 <0.000250 0.3 N7300 MCE 04/11/2002 AJB Molybdenum <1.00 <0.000833 1 N7300.MCE 04/11/2002 AJB Nickel <0.200 <0.000167 0.2 N7300 MCE 04/11/2002 AJB Zinc <0.500 <0.000417 0.5 N7300 MCE 04/11/2002 AJB

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NYC-WTC_000196513