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NYC-WTC_000226986

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000226986–000226987
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NYC 9/11 Public Portal Document

Jan 07 02 11:02a PSC Analytical Services 6109219667 P- 4

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING • EPAWVLAP 101262-0 • NY DOIWELAC 10303 •NJ DEP77020 • AIHA ACCREDITATION NO. 100439 •PA DEP 06-353 • CT DPH PH-0238 •NCDENR 599

ANALYTICAL SERVICES Analytical Results for ATC Associates WorkOrder: ROl 120402 Client Reference: 19125-0246: Silica in Air

Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst (ug) ; ; (ppni) (ug)

Client ID: ATC-1220-STY-S-l LabID:-01A Date Sampled: 12/20/01 Matrix: Filter AirVol,(L):8l6 Total Particulate Matter <100 <0.123 100 N050O 01/02/2002 ADM Silica (Quartz Total) <5 <0.00613 5 AIRBORNE SILICA 01/02/2002 ADM

Client ID: ATC-1220-STy-S-2 Lab ID: -02A Date Sampled: 12/20/01 Matrix: Filter AirVol.(L).: 819.4 Total Particulate Matter <100 <0.122 100 N0500 01/02/2002 ADM Silica (Quartz Total) <5 <0.00610 5 AIRBORNE SILICA 01/02/2002 ADM

Client ID: ATC-I220.STY.S-3 LabID:-03A Date Sampled: 12'20/01 Matrix: Filter Air Vol.(L): SI7.7 Total Particulate Matter <100 <0.122 100 N0500 01/02/2002 ADM Silica (Quartz Total) <5 <0.00611 5 AIRBORNE SILICA 01/02/2002 ADM

Client ID: ATC-1220-STY.S-4 Lab ID: -04.A Date Sampled: 12/20/01 Matrix; Filter Air Vol.(L);Sl6 Total Particulate Matter • <100 <0.123 100 NO500 01/02/2002 ADM Silica (Quartz Total) <5 <0.00613 5 AIRBORNE SILICA 01/02/2002 ADM

Client ID; ATC-l220-STy-S-5 Lab ID; -OSA Date Sampled; 12/20/01 Matrix: Filter AirV(il.(L):SI7.7

Total Particulate Matter <100 <0.122 100 NO500 01/02/2002 ADM Silica (Quartz Total) <5 <0.00611 5 AIRBORNE SILICA 01/02/2002 ADM

Client ID: ATC-I220-STY-S-6 Lab ID: -06A Date Sampled: 12/20/01 Matrix: Filter Air Vol.(L): 819.4 Total Particulate Matter <100 <0.122 100 N050O 01/02/2002 ADM Silica (Quartz Total) <5 <0.00610 5 AIRBORNE SILICA 01/02/2002 ADM

Client ID; ATC-1220-STY.S-7 Lab ID: -07A Date Sampled: 12/20/01 Matrix; Filter AirVol.(L): 816 Total Particulate Matter <100 <0.123 100 N0500 01/02/2002 ADM Silica (Quartz Total) <5 <0.00613 5 AIRBORNE SILICA 01/02/2002 ADM

Client ID: ATC-1220-STY-S-S Lab ID: -OSA Date Sampled: 12/20/01 Matri.x: Filter Air Vol.(L): 816 Total Particulate Matter <100 <0.123 100 N0500 01/02/2002 ADM Silica (Quartz Total) <5 <0,00613 5 AIRBORNE SILICA 01/02/2002 ADM

Client ID; ATC-1220.STY-S.9 LabID:-09A Date Sampled: 12/20/01 Matrix; Filter Air Vol.(L): 817.7 Total Particulate Matter <100 <0.122 100 N0500 01/02/2002 ADM .Silica (Quartz Total) <5 <0.00611 5 AIRBORNE SILICA 01/02/2002 ADM

Client ID: ATC-I220-STY-S-I0 Lab ID: -lOA Date Sampled; 12/20/01 Matrix: Filter AirVol.(L): 816

Total Particulate Matter <100 <0.123 100 N0500 01/02/2002 ADM Silica (Quartz Total) <5 <0.00613 5 AIRBORNE SILICA 01/02/2002 ADM

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NYC-WTC_000226986

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