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Document page fragment, DEP Box 54, 2003

Machine-extracted title · confidence 60%

Fragmented document page from the Department of Environmental Protection archive.

NYC-WTC_000131928–000132106
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Scanned page image, NYC-WTC_000131937
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NYC-WTC_000131937 sc ron #. 203031651 & Client Name: JLC SciLab Sample # Environmental Consultants Phase Contrast Microsco CM) Fiber Resulis 03-2744, NYC DEP; 114 Liberty Street . Flow Air Client Date Rate Duration Filtered = Fields Fibers ample #/ Location Collected (litersfmin.) (min.) (liters) Fiber Density . ) of | Fibers Cone. TWA (Fibers/mm 2 3 (Fibers/cc) Ol To The Front Entran 03/07/2003 5 {045 5225 100 {0 ce | Of Building #1 (4, Liberty Street 03/07/2003 S 1045 5225 100 9 Adjacent To The Front Entrance Il Of Building #114, Liberty Sweet In The Clean Room Of The 05 06 Field Blank 07 Field Blank Reporting Notes: (1) Fibers/ec cannot be calcul {2) Analyst was able, Asalyzed by: Marvin Brothers 03/07/2003 5 1045 $225 100 16 Decon Of The Work Arca Building #114 Lib. 03/07/2003 5 1045 5228 To The Far Right OF The Back Entrance To The Building #1 {4 Ou Cedar Street 93/07/2003 5 1045 5225 Adjacent To The Back EntranceOf Building #114 On Cedar Street 03/07/2003 0 0 6 100 0.5 03/07/2003 0 0 0 100 0.5 ated for samples (or blanks) with no air volume. entration because of overloading of particulate material on the filter. ; Date Analyzed: 0308/2003 12.74 11.46 20.38 NA NA 0.64 0.64 0.001 0.001 0.002 Footnotes: 2 Footnotes: 2 Footnotes: / Footnotes: J NYC 9/11 Public Portal Document 93/08/2083 19:43 2126799164 SCILAB NYC Sanuptes analyzod by NIOSH 7400(A) Method, Isyue #2, 8/15/94: Limit of Detectian= 5.5 fibers per 100 elds or 7 fibecstmm2: Blank analyses are reported when available, however sre not used co adjust results of associated sesaples in this report. This report relates ONLY to the sample analysis expressed as fibers/sq mm of filter area: ND=No fibers cbserved: NA= Nat Asalyzed; Walton-Beckett graticle field aren = 0.00785 mm: TWA = 8 He TWA calculation assumes zero exposure for remainder of 8 br paried not sampled: Upper 95% C. limit mplayers Compliance Test)- Calculated 2s a one sided UCL to determine 95% cactaimty of compliance with the 0.01 Gberkr standard: Eatimatod relative standard deviation: Istrafad Sr=0.405, Inteclad $reD.45, New York samples (TYSDOW ELAP Lab # 11480): National fnstitats of Standerds and Technology Accreditation cequirements imsudate that this report must aot be reprovinced except in fall withent the approval of the laboratory. AIBA @ 102843. PAGE 62/83

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NYC-WTC_000131937Source: NYC Law Department, mirrored locally

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