NYC-WTC_000194867

NYC 9/11 Public Portal Document to 1 u -ay i -aais / p. ya kJ O • t- “T f-* r ou

F’SCZ INDUSTRIAL HYGIENE •EPANVLAP101262-0 •AIHAACCREDITATION NO. 100439 ENVIRONMENTAL TESTING •NY DOH/NELAC 10903 • PA CEP 06-353 •NJDEP PAO20 • CT DPH PH-023a •NC DENR 599

.ANALYTICAL SERVICES Analytical Results for

ATC Associates Workorder: R02050015 Client Reference: 19125-0289, Metals

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

Client (D: ATC-0429-150M-M1 Lab ID: -01A Date Sampled: 4/29/2002 Matrix: Filter Air Vol.(L): 1200 Aluminum 3.32 0.00277 1 N730Q MCE 05Z10/2002 AJB Cadmium <0.200 <0.000167 0.2 N7300 MCE 05/10/2002 AJB Chromium ----- 0.760 0.000633 0.2 N7300 MCE 05/10/2002 AJB Cobalt <0.100 <0.0000833 0.1 N7300 MCE 05/10/2002 AJB Copper ■ 0.238 0.000199 0.2 N7300 MCE 05/10/2002 AJB Iron _ 4 63 0.00386 2 N73O0 MCE 05/10/2002 AJB Lead <0300 <0 000250 0.3 N730O MCE 05/10/2002 AJB Magnesium 4 .10 0.00341 1.3 N7300 MCE 05/10/2002 AJB Manganese <0.300 <0.000250 0.3 N7300 MCE 05/10/2002 AJB Molybdenum <1.00 <0 000833 1 N73O0 MCE 05/10/2002 AJB Nickel <0.200 <0.000167 0.2 N7300 MCE 05/10/2002 AJB Zinc <0.500 <0.000417 0.5 N7300 MCE 05/10/2002 AJB

Client ID: ATC-0429-150M-M2 Lab ID: -02A Date Sampled: 4/29/2002 Matrix: Filter AirVol.(L): 1200

Aluminum <1.00 <0.000833 1 N7300 MCE 05/10/2002 AJB Cadmium <0.200 <0.000167 0.2 N730O MCE 05/10/2002 AJB Chromium 0.619 0.000516 0.2 N7300 MCE 05/10/2002 AJB Cobalt <0.100 <0.0000833 0.1 N7300 MCE 05/10/2002 AJB Copper <0.200 <0000167 0.2 N73QQ MCE 05/10/2002 AJB Iron 2.56 0.00214 2 N7300 MCE 05/10/2002 AJB Lead <0300 <0.000250 0.3 N7300 MCE 05/10/2002 AJB Magnesium <1.30 <0.00108 13 N7300 MCE 05/10/2002 AJB Manganese <0.300 <0.000250 0.3 N7300 MCE 05/10/2002 AJB Molybdenum <1.00 <0.000833 1 N7300 MCE 05/10/2002 AJB Nickel <0.200 <0.000167 0.2 N7300 MCE 05/10/2002 AJB Zinc <0500 <0.000417 0.5 N7300 MCE 05/10/2002 AJB

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NYC-WTC_000194867