ATC Associates analytical results sheet, March 2002

NYC 9/11 Public Portal Document rrar- u r ue uj: 03p PBU Ftna i at 1 ca 1 Servi ces B 1 Uac! 1 9667 p. 23

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING •EPAMVLAP101262-0 NY DOHJNELAC10903 •NJDEP PA020 a “AIHAACCREOITATIONNO. 100439 PA DEP 06-353 «CTDPHP1«238 □ "NCDENR599

ANALYTICAL SERVICES Analytical Results for ATC Associates WorkOrder: R02030173 Client Reference: 19125-0291

Analyte Concentration Limit of Test I DatFAnalyzed Detection Method /Analyst (“g) • (mg/nP) : (ppm) (ng) Client ID: Hgl ATC-0302-M833 Lab ID: -01A Date Sampled: 3/2/02 Matrix: HTBE AirVol.(L): 120 Mercury 0.0250 0.000208 0.01 N6009M 03/07/2002 JDC

Client ID: Hg2 ATC-0302-M833 Lab ID: -02A Date Sampled: 3/2/02 Matrix: HTBE AirVol.{L): 120 Mercury 0.0250 0.000208 0.01 N6009M 03/07/2002 J DC

aient ID: Hg3 ATC-O3O2-M833 Lab ID: -03A Date Sampled; 3/2/02 Matrix: HTBE AirVol.(L): 120 Mercury 0.0260 0.000217 0.01 N6009M 03/07/2002 JDC

Client ID: Hg4 ATC-0302-M833 Lab ID: -04A Date Sampled; 3/2/02 Matrix: HTBE AirVoI.(L): 120 Marcury 0.0260 0.000217 0.01 N6009M 03/07/2002 JDC

Client ID; Hg5 ATC-O3O2-M833 Lab ID: -OSA Date Sampled: 3/2/02 Matrix: HTBE Air Vol.(L): NA Mercury 0.0290 0.01 N6009M 03/07/2002 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 show^ no significant breakthrough.

Page 1 of 1

CONFIDENTIAL, CITY_21MC100_0 03395199 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000178831