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NYC-WTC_000197622

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NYC 9/11 Public Portal Document

G109219G67 p. 18 Mac 20 02 OBtOla PSC Analatical Services

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING • EPAWLAP 101262-0 • NY DOHINELAC 10903 •NJDEP PA02O •AWAACCREDITATION NO. 100438 ■ PA DEP 06-353 >CT DPHPH-023B •NCDENR589

AMAJ.YTICAL SERVICES Analytical Results for ATC Associates WorkOrder: R02030554 Client Reference: 19125-0246

Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst (ug) • (mg/m’) : (ppm) (ug) Client ID: Dustl ATC-031 l-STY Lab ID: -0) A Date Sampled: 3/11/02 Matrix: Filter AirVal.{L): 1440 Total Particulate Matter 230 0.0160 50 N05O0 03/13/2002 TEN

(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_000197622

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NYC-WTC_000197622Source: NYC Law Department, mirrored locally

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PSC Analytical Services results for dust samples collected at P.S. 89M on February 6, 2002.

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