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Asbestos fiber analysis results, 114 Liberty Street, April 2003

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Laboratory report summarizing PCM analysis of asbestos fibers collected at 114 Liberty Street in March and April 2003.

NYC-WTC_000177526–000177527
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NYC 9/11 Public Portal Document

JLC ENVIRONMENTAL CONSULTANTS, INC. 200 Park Avenue South. Suite 1001, New York. New York 10003 Phone; (212) 420-8119 Fax: (212) 420-6092 Project No.; 03-2744 wYork City D.E.P. ELAP Lab Code: 11029 Analyte; FIBERS 17 Junction Blvd. NIOSH and AIHA Lab Code: 100273 Date Received: 4/1/2003 Flushing, NY 11373 NVLAP Lab Code: 101953 Date Analyzed; 4/1/2003

SUMMARY OF ANALYTICAL RESULTS - PCM Site: i 114 Liberty Street, New York, NY J

SAMPLE # COLLECTED DESCRIPTION I LOCATION TIME(min) VOLUME(L) FIB/FIELD RESULTS(f/cc) LAB# —

007 FIELD BLANK 0/100 01-April A 9912

Sample Analysis by: <LOD = Less than limit of detection which is 5.5 Fibers/100 Fields VOID1 = H.C.P. ( High Concentration of Particles) Positive Phase Contrast Microscopy (PCM) VOID2 = Overloaded Method of Sa Pfeoaration and Analysis: All samples analyzed in accordance with the NIOSH 7400 Method using “A" Counting Rules. Issue 2,^^1^1994 kistrurnentation; Gul Machhiwala Olympus PCM Model BH-2 with Walton-Beckett Graticule (100um field diameter). Laboratory Director Report Date: April 22.2003 JLC is responsible for only the fiber counts within the limitations of the method described as NIOSM 7400. Among other limitations, this method gives only an index of airborne fibers and provides only an estimate of asbestos concentration. Any and all claims arising out of JLC's analysis of these samples are limited in recovery to the cost of analyzing samples. JLC accepts no other liability and the client agrees to seek no costs beyond the above. Page 54 of 60

CONFIDENTIAL, SUBJECTTO PROTECTIVE ORDER NO. 1, JAN. 2013

CITY_DEP_WORBY_CANNATA_SUBP_000008857

NYC-WTC_000177527

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NYC-WTC_000177527Source: NYC Law Department, mirrored locally

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