Document header for 61 Broadway records, 2002

NYC 9/11 Public Portal Document

FROM : FAX NO. : JLC ENVIRONMENTAL CONSULTANTS. INC. 200 Park Avenue South, Suite 1001, New York, New York 10003 Phone. (212) 420-8119 Fax. (212) 420.6092

Door Real Estate Services, Inc. Project No.; 01-2129 ELAP Lab Code: 11028 Ahalyte: 55 Broadway FIBERS NIOSH and AIHA Lab Code: 100273 tale Received: New York. NY 10006 10111101 NVLAP Lab Code; 101953 Date Analyzed: 10/16/01 SUMMARY OF ANALYTICAL RESULTS Batch IV: 0110AT38 Site: I 55 8roedway, i' OW York, NY

SAMPLE # ` ____1 — ——

COLLECTED DESCRIPTIONILOCATtON LAB 17ME(mia) VOLNME(q Fl$/FiFLD RESW,TS(f/cc)

001 Ambient/ On the 11th Floor/ At the North Section 11-October 120 1846 4/100 of the Office A 7470

002 Ambient/ On the 11th Floor/ At the East Section 120 1846 5/100 ,Q01CLOD 11-October of the Office A 7471

003 Ambient/ On the 11th Floor/At the West Section 120 1846 3/100 0001 <LOD 11.October of the Office A 7472

004 Ambient! On the 11th Floor/ At the South Section 120 11-October 1846 4/100 0.001<LOD of the Office A 7473

005 FIELD BLANK 0!100 11-October A 7474

Sample Analysis by: CLOD: Less than limit of detection which Is 5.5 Fibers/ 100 Flelds Positive Phase Contrast Microscopy (PCM) VOID1 v N.C.P. (High Concentration of Particles) VOID2 a Ovedoaded Method of SAmole Preperaton and Analysis: All samples ahalyzed in accordance with the NIOSH 7400 Method using "A' Counting Rules. Issue 2, August 1994 Instrumentation: (Ts it t41% ; ,_ &A Olympus PCM Mode! 8H-2w11h Walton•Beckett Oraticule (100um field diameter). r. U Laboratory Director Report Date: October 16, 2001 JLC is responsible for only the fiber counts within the limitations of the method described as N1OSH 7400, Among other limitations, this rneth gives only arm index of airborne fibers and provides only an estimate of asbestos coneentralion. Any and all claims arising out ofJLC's analyst these samples are limited In recovery to the cost of analysing samples. JLC accepts no other liability and the client agrees to seek no costs b the above, Page 2 of 2

NYC-WTC 000105587