NYC-WTC_000226236

NYC 9/11 Public Portal Document p. ± o biu-acTi-atJtj'' Jun 21 02 03:4Gp PSC

ENVIRONMENTAL TESTING PSC AWALYnCAL INDUSTRIAL HYGIENE •EP/UNVIAP101262-0 • MY DOH4IELAC10903 •NJDEPPA020 • AIHAACCREDITATIQN NO. IC0439 • PA DEP 06-353 •CTDPHP1W238 •NC DEMR 599 Analytical Results for ATC Associates WorkOrder: R02060664 Client Reference: 19125-0290, Mercury

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

Client ID: ATC-0614-M894-Hg I Lab ID: -01A Date Sampled: 6/14/2002 Matrix: HTBE Air Vol.(L): 120 Mercury 0.0270 0.000226 0.01 N6009M OS/21/2002 JDC

Client ID: ATC-0614-M894-Hg2 Lab ID; -02A Date Sampled: 6/14/2002 Matrix: HTBE AirVoI.(L): 120 Mercury 0.0254 0.000212 0.01 N6009M 05/21/2002 JDC

Client ID: ATC-0614-M894-Hg3 Lab ID: -03 A Date Sampled; 6/14Z2002 Matrix. HTBE AirVoL(l); 120 Mercury 0.0271 0.000226 0.01 N60O9M 05/21/2002 JDC

Client ID: ATC-0614-M894-Hg4 Lab ID: -04A Date Sampled: 6/14/2002 Matrix: HTBE AirVol.(L); 120 Mercury 0.0256 0.000213 0.01 N6009M 06/21/2002 JDC

Client ID: ATC-0614-M894-Hg5 Lab ID: -OSA Date Sampled: 6/14/2002 Matrix: HTBE Air Vol.(L): NA Mercury 0.0248 0.01 N6009M 05/21/2002 JDC

(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_000226236