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NYC-WTC_000197625

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NYC 9/11 Public Portal Document

Mar 12 02 02:4ap PSC Analytical Services G109219BE7 P- 4

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING ■EPAINVLAP101262-0 -NYDOIMNELAC 10903 •NJ DEP PAD20 •AllWACCREDITATION NO. 1D0438 ■ PA DEP 06-353 • CT DPH PH-0238 •NCDENR599

AKTATYTICAL SERVICES Analytical Results for ATC Associates WorkOrder; R02030379 Client Reference: 19125-0246

Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst (ug) : (mg/m’) ; (ppm) (ug) Client ID: Dustl A'rC-0307-STY Lab ID: -01A Date Sampled: 3/7/02 Matrix: Filter AirVoUL): 1440 Total Particulate Matter <50.0 <0.00347 50 N050O 03/08/2002 TEN

(a) Analysis indicates possible breakthrough; backjection 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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CITY_21MC100_003046534

NYC-WTC_000197625

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NYC-WTC_000197625Source: NYC Law Department, mirrored locally

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