NYC-WTC_000207954

NYC 9/11 Public Portal Document

Sep 23 02 09:37a PSC BlO-921-9667 P- 11

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING FSC •EPAJ^VLAP101262-D •NYDOH/NELAC 10903 •NJ DEPPAO20 • AIHAACCREDITATION NO 100439 • PA DEP 06-353 • CT DPH PH-0238 ■ NC DENR 539

Analytical Results for ATC Associates WorkOrder: RO209043] Client Reference; P.S 124 M

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

Client ID; ATC-09I2-124M-M5 Lab ID: -05,A Date Sampled: 9/12/02 Matrix: Filter Air Vol.(L): NA

Aluminum <1.00 1 N7300 MCE 09/19/2002 AJB Cadmium <0 200 0.2 N7300 MCE 09/19/2002 AJB Chromium <0.200 02 N7300 MCE 09/19/2002 AJB Cobalt <0 100 0.1 N7300 MCE 09/19/2002 AJB Copper <0.200 0.2 N7300 MCE 09/19/2002 AJB Iron <2.00 2 N7300 MCE 09/19/2002 AJB Lead <0.300 0.3 N7300 MCE 09/19/2002 AJB Magnesium <1.30 1 3 N7300 MCE 09/19/2002 AJB Manganese <0.300 0.3 N7300 MCE 09/19/2002 AJB Molybdenum <1.00 1 N730O MCE 09/19/2002 AJB Nickel <0.200 02 N7300 MCE 09/19/2002 AJB Zinc <0.500 , 0.5 N7300 MCE 09/19/2002 AJB

(a) Analysis indicates possible breakthrough; back section result is greater than 0% of the front section result

General Notes: <. Less than the indicated limit of detection (LOD). Information not available or not applicable. Back sections were checked and showed no significant breakthrough.

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NYC-WTC_000207956