NYC-WTC_000222465

NYC 9/11 Public Portal Document M M / . O

ENVIRONMENTAL TESTING PSC AISAIUVTBM INDUSTRIAL HYGIENE » •EPAWVLAP 101262J) • NY DOHINEIAC10903 • NJDEP PAQ20 •AIWA ACCREDITATION NO. 100439 • PA OEP 06-353 •CTCPHPH-a238 •NCDENR59B Analytical Results for ATC Associates WorkOrder: R02060371 Client Reference: 19125-0297, Mercury

Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst («g) : (mg/nP) ; (ppm) (ng) Client ID: ATC-89M-0606-Hgl Lab ID; -01A Date Sampled: 6/6/02 Matrix: HTBE AirVol.(L): 120 Mercury 0.0275 0.000229 0.01 N6009M 06/13/2002 JDC

Client ID: ATC-S9M-060C-Hg2 Lab ID: -02A Date Sampled: 6/6/02 Matrix: HTBE AirVol.(L): 120 Mercury 0.0271 0.000226 ~ 0.01 N6009M 06/13/2002 JDC

Client ID: ATC-89M-0606-Hg3 Lab ID: -03A Date Sampled: 6/6/02 Matrix: HTBE AirVol.(L): 120 Mercury 0.0282 0.000235 0.01 N6009M 06/13/2002 JDC

Client ID: ATC-89M-0606-Hg4 Lab ID: -04A Date Sampled: 6/6/02 Matrix: HTBE AirVoML): 120 Mercury 0.0276 0.000230 0.01 N6009M 06/13/2002 JDC

Client ID: ATC-89M-0600-Hg5 Lab ID: -05A Date Sampled: 6/6/02 Matrix: HTBE Air Vol.(L); NA Mercury 0.0260 0.01 N6009M 06/13/2002 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 cheeked and showed no significant breakthrough.

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CITY_21MC100_002889197

NYC-WTC_000222465