NYC-WTC_000227067

NYC 9/11 Public Portal Document

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING ■EPAM/LAP101262-0 ■ NY D0H/1JELAC10903 •NJOEPPA020 ■AIHAACCREDITATION NO. 100439 • PA DEP 08-353 " CT OPH PH.0238 ■ NC DENR 598

ANALYTICAL SERVICES Analytical Results for ATC Associates WorkOrder: R02030495 Client Reference: 19125-0291

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

Client ID: M3 ATC-0309-M833 Lab ID: -03A Date Sampled: 3/9/02 Matrix: Filter Air Vol.{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 0.306 0.000255- 0.2 N7300 MCE 03/13/2002 TH Coball <0.100 <0.0000833 0.1 N7300 MCE 03/13/2002 TH Copper <0.200 <0.000167 0.2 N73Q0 MCE 03/13/2002 TH

Iron <2.00 <0.00167 2 N7300 MCE 03/13/2002 TH

Magnesium <1.30 <0.00108 1.3 N73OO MCE 03/13/2002 TH

Manganese <0.300 <0.000250 0.3 N7300 MCE 03/13/2002 TH

Molybdenum <1.00 <0.000833 1 N7300 MCE 03/13/2002 TH

Nickel <0.200 <0.000167 0.2 N7300 MCE 03/13/2002 TH

Zinc <0.500 <0.000417 0.5 N7300 MCE 03/13/2002 TH

Client ID: M4 ATC-0309-M833 Lab ID: -04A Dale Sampled: 3/9/02 Matrix: Filter AirVol.(L): 1200

Aluminum 1.01 0.000840 1 N73Q0 MCE 03/19/2002 TH

Cadmium <0.200 <0.000167 0.2 N7300 MCE 03/19/2002 TH

■Chromium 0.362 0.000301 0.2 N7300 MCE 03/19/2002 TH

Cobalt <0.100 <0.0000833 0.1 N7300 MCE 03/19/2002 TH

Copper <0.200 <0.000167 0.2 iM7300 MCE 03/19/2002 TH

——Iron 2.77 0.00231 2 N7300 MCE 03/19/2002 TH

Magnesium <1.30 <0.00108 1.3 N7300 MCE 03/19/2002 TH

Manganese <0.300 <0.000250 0.3 N7300 MCE 03/19/2002 TH

Molybdenum <1.00 <0.000833 1 N730O MCE 03/19/2002 TH

Nickel <0.200 <0.000167 0.2 N7300 MCE 03/19/2002 TH

Zinc <0.500 <0.000417 0.5 N7300 MCE 03/19/2002 TH

Page 2 of 3

CITY_21MC100_002923977

NYC-WTC_000227068