NYC-WTC_000223206

NYC 9/11 Public Portal Document

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING •EPAmAP1012fl2-0 • NY OOH/NELAC10903 • NJ DEP PAOM ■ AIWA ACCREDITATION NO. 100439 •PA DEP 06-353 •CT DPH PK-0239 •NCDENR599 Analytical Results ANALYI ICAL SERVICES for

ATC Associates WorkOrder; R02040516 Client Reference: 19125-0246, Metals

Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst (ug) (mg/m’) ; (ppm) (ue) Client ID: ATC-0410-STY-MI Lab ID; -OlA Date Sampled: 4/10/02 Matrix: Filter AirVoML): 960

Aluminum <1.00 <0.00104 1 N7300 MCE 04/17/2002 AJB Cadmium <0.200 <0.000208 0.2 N73O0 MCE 04/17/2002 AJB Chromium 0.335 0.000348 0.2 N7300 MCE 04/17/2002 AJB Cobalt <0.100 <0.000104 0.1 N7300 MCE 04/17/2002 AJB Copper <0.200 <0.000208 0.2 N7300 MCE 04/17/2002 AJB Iron <2.00 <0.00208 2 N73O0 MCE 04/17/2002 AJB Lead <0.300 <0.000312 0.3 N7300 MCE 04/17/2002 AJB Magnesium <1.30 <0.00135 1.3 N7300 MCE 04/17/2002 AJB Manganese <0.300 <0.000312 0.3 N7300 MCE 04/17/2002 AJB Molybdenum <1.00 <0.00104 1 N73O0 MCE 04/17/2002 AJB Nickel <0.200 <0.000208 0.2 N730O MCE 04/17/2002 AJB Zinc <0.500 <0.000521 0.5 N7300 MCE 04/17/2002 AJB

Client ID: ATC-04I0-STY-M2 LablD:-02A Date Sampled; 4/10/02 Matrix: Filter AlrVol.(L);960

Aluminum <1.00 <0.00104 1 N73O0 MCE 04/19/2002 AJB Cadmium <0.200 <0.000208 0.2 N7300 MCE 04/19/2002 AJB Chromium 0.358 -- 0.000373 0.2 N73O0 MCE 04/19/2002 AJB Cobalt <0.100 <0.000104 0.1 N73O0 MCE 04/19/2002 AJB Copper <0.200 <0.000206 0.2 N73O0 MCE 04/19/2002 AJB Iron <2.00 <0.00208 2 N7300 MCE 04/19/2002 AJB Lead <0,300 <0.000312 0.3 N7300 MCE 04/19/2002 AJB Magnesium <1.30 <0.00135 1.3 N7300 MCE 04/19/2002 AJB Manganese <0.300 <0.000312 0.3 N7300 MCE 04/19/2002 AJB Molybdenum <1.00 <0.00104 1 N7300 MCE 04/19/2002 AJB Nickel <0.200 <0.000208 0.2 N7300 MCE 04/19/2002 AJB Zinc <0.500 <0.000521 0.5 N7300 MCE 04/19/2002 AJB

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NYC-WTC_000223206