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NYC-WTC_000230465

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NYC 9/11 Public Portal Document Jun 27 02 08:51a PSC 610-921-9667 p. 20

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING FSC ANALVTIGAL SETOGES ■EPWN\/LAP1012S2-0 •MY DOH/HELAC10303 •WDEP PAfl2a • AIHA ACCREDITATION NO. 100439 • PA DEP 06-353 • CT DPH PK-K3e •NCDENR599 Analytical Results for ATC Associates TVorkOrden R02060824 Client Reference: 19125-0297, Dust

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

Client ID: ATC-0621-89M-Dustl Lab ID: -01A Date Sampled: 6/21/02 Matrix: Filter Air Voi.(L): 14400

Total Particulate Matter <50.0 <0.00347 50 N0500 06/25/2002 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.

S

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CONFIDENTIAL, CITY_21MC1OO_OO3488489 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000230465

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NYC-WTC_000230465Source: NYC Law Department, mirrored locally

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