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Document / 86 pages

Chain of custody form, 21 West Street, Nov 2001

Machine-extracted title · confidence 95%

Multi-page chain of custody document tracking the handling of samples collected from 21 West Street.

NYC-WTC_000094592–000094677

Folder label: “21 WEST STREET Block: 15 Lot: 22

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NYC 9/11 Public Portal Document FEB-28-2002 THU 11:17 AM CLOSINGS 0 ROSE FAX NO. 212 210 6724 P. 33/42

JLC ENVIRONMENTAL CONSULTANTS, INC. 200 Park Avenue South, Suite 1001, New York, New York 10003 Phone: (212) 420-8119 Fax: (212) 420.6092 Prnjact Nn,, 01.20e9 [assnAasnclptes ELAP Lab Code: 11029 Analyse: FIBERS 200 MAdisgn Avonua NIOSH and AIHA Lab codo; 100273 Date RBODiVod: 10/5/2001 New York, NY 10016.3901 NirLAP Lab Code: 101953 Date Analyzed: 101512001 Batch 0: 0110AGQB SUMMARY OF ANALYTICAL RESULTS 21 West Street, New York, NY y —

SAMPLEE # COLLECTED DI-SCRIPTION I LOCATION TIME(min) VOLUME(I) FIRIFIELD RF$ULTS(flcc) LAB

013 Amlotentl Apt. 3H/ Back Bedroom 120 1837.8 2/100 0. 054,,7ctnber A Ifh53

020 Ambient/ Apt 3H/ Hall lay Bathroom 120 1837.8 3/100 0 ,1 05.Octotor A 6054

021 Ambient/ Apt, 17H 120 1837.8 4/100 0,001 A &aka

022 Ambient/ Apt. 171-i 190 1B7.8 3/100 0.001 G13 0ctabor A 6953

023 Ambient/ PHC! 2nd Level Bedroom 120 1837.8 2/100 O,Q01 Q5.Ocloher A 6937

024 ' Ambient/ PHC/ 2nd Level Bathroom Area 120 1837.8 2/100 0.001. 0l O .lobor A 6058

anipta Anaiysis by: CLOD = Less than limit of detection which is 5.5 Fibers/ 100 Firalds PnRitiv fah.,^fl l:nntrnat Mirrn¢rnr,y (PCM) VOIDi H.C,P. ( High Concentration of Particles) vUtu2 = Ove~rloadeid M on of S an;i4i Preparation and Analysis: All 8arnpir3s analyzed in accoroanca with Me NIOSH 1400 MathoU using "N Counting Rules. Issue 2, August 1994 C-_ ~• InRtr19R1tifllbkL : l~~ . -~ tliyrxgsua PCM Model RH•2 with Walton ackcett CroQeulo (100um fold dtarnotor). Laboratory Director Report Date: October 6, 2001 '11,C is responsible for only the fiber counts within the limitations of the rnothod described as NIOSH 7400. Among other limitations, this rrtethod gives only an index of airborne fibers and provides only an estimato of asbostos concentration, Any and all claims arising out of Jl.Q'3 analysts of theao eamplee are limited In recovery to the coat of analyzing samples. JLC accepts no oilier liuk,ility and thn ulinnt pgro4s to seek no costs beyond the above. ye 6 of 7

NYC-WTC 000094625

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NYC-WTC_000094625Source: NYC Law Department, mirrored locally

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