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Asbestos dust analysis summary, 100 Church Street, Oct 2001

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TRC Environmental Corporation report summarizing transmission electron microscopy results for asbestos dust samples at 100 Church Street.

NYC-WTC_000176286
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NYC 9/11 Public Portal Document SciLabJob#: 202013091 Client Name: TRC Environmental Corporation Tablel Summary of Transmission Electron Microscopy (TRM) Results for Asbestos (ASTM 5755 Dust) 35052-0000-00002; New York City Law Department; 100 Church Street ?w co * Analytical Structure * Analytical I Surface Structure w H Area Asbestos Sensitivity Density Sensitivity Density Type S on Grid on Grid oh Surface on Surface w Sediab Client Sampled Dilution Structures of Sample # Sample # (sq.cm ) Factor Detected (Str/sq nun) (Str / sq mm) ( Str / sq. cm ) (Str? sq. cm ) Asbestos s

M JC012302MV0201 100.0 0,100 2nd Floor Dell Compute! - Inside OFl lPDRX OX! Ser. #US4ZK 6 25 150.0 535 3,210 chiysodle s 02 jr>0i2302MVO2O2 100.0 0.010 10 10 100.0 2,140 21.400 cluysotile 2nd Roor Dell Computer - Inside OPTIPLEX GXI Ser. #US851 03 ID012302MV0203 100.0 0.010 101 11.1 1,122.2 2,377 240,155 dirysotile 2nd Floor HP Laser Jet Printer Ser. #USDD024099 n 0.010 300.0 m 01 JDO123O21VIVO2O4 10010 30 10 2,140 64,200 chrysotile :z. 2nd Floor HP LaserJet Printer Ser. #USBK149650 m 05 JD0123O2MV03O1 100.0 0.020 12 10 120,0 1,070 12,840 chrysotile n 3rd Floor DeU Computer Serial #U2NPR JD012302MV6302 100.0 0.020 2 10 20.0 i,070 5 tn 06 2,140 chrysotile cn 3rd Floor CSS Laboratories Computer Serial #1026 07 JD012302MV0303 100.0 0.020 3 10 30.0 1,070 3,210 chrysotile 3rd Floor HP Laser Jet Printer Behind Access Door Ser. #USDDO223457 08 JD012302MV03O4 100.0 0.020 3 10 30.0 1,070 3,210 chrysotile 3id Floor HP Laser Jet Printer Behiod Access Door Ser. #USD6044387 07 JD012302MV0601 100.0 0.020 0 10 <10 1,070 <1,070 NSD 6ih Floor Dell Computer Ser. #14A8C 10 JD012302MV0602 100.0 0.020 S 10 80.0 1,070 8,560 cluy'sotilc 6th Roor Dell Computer Ser. #2FT3E 11 JDO123O2MV0603 100.0 0.020 2 10 20.0 1,070 2,140 cluysotile 6th Hour Dell Computer Ser. #2F1X2A K) 12 JD012302MV0604 100.0 0.020 3 10 30.0 1,070 3,210 chrysotile rv 6tli Floor HP Laser Jet Printer Ser. # USDGO044380 cn ->3 13** JD012302MVBIankl I IB O (JO Micro-Vac Blank Sample #1

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* structure density represented by the detection of 1 structure T o ** not iinalyzed (S o ro NSD: Mo Asbestos .Struchire.s Detected Reviewed By: ; Analyzed By:. Date; § o

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NYC-WTC_000176286

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NYC-WTC_000176286Source: NYC Law Department, mirrored locally

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Summary table of transmission electron microscopy results for asbestos dust samples submitted to the New York City Law Department.

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