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Air quality sampling report, 111 Broadway, Oct 2001

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Report of environmental air quality sampling from multiple floors at 111 Broadway on October 6-7, 2001; all fiber counts within OSHA permissible exposure limits.

NYC-WTC_000132961–000133059

Folder label: “115 BROADWAY Block: 50 Lot: 1 BIN: 1001003 United States Realty Building

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NYC 9/11 Public Portal Document

New York Lab 307 West 38th Street, New York, NY 10018 Phone: 212-290-0051 Fax: 2122900058 Email:

Attn: CTSI-Consulting & Testing Services, Inc. Customer ID: CTSI50 622 Georges Rd. Customer PO: North Brunswick, NJ 08902 Received: 10/17/01 3:15 PM Fax. (732) 729-1803 Phone: 732-729-1800 EMSL Order. 030106425 Project: 111 Broadway I Entire Bldg EMSL Project ID: Analysis Date: 10/17/2001

Fiber Analysis of Air Samples via NIOSH 7400, Revision 3, Issue 2, 8115194 LOD Fibers/ Fibers/ Sample Location SampleDate Volume Fibers Fields (jib/cc) m& cc Notes 01 21st FI West side 10/17/2001 1875.00 44.0 100 0.001 56.05 0.012 0301064250001

02 20thFl East side 10/17/2001 1875.00 41.0 100 0.001 52.23 0.011 030106425-0002

03 19th Fl N-W side 10/17/2001 1875.00 35.0 100 0.001 44.59 0.009 0301084250003 04 18th Fl South side 10/17/2001 1860.00 16.0 100 0.001 20.38 0.004 030106425-0004 05 17th Fl South side 10/17/2001 1860.00 12.5 100 0.001 15.92 0.003 • 030106425-0005

06 16th Fl Center 10/17/2001 1860.00 20.0 100 0.001 25.48 0.005 0301064250008 07 15th Fl East side 10/17/2001 1860.00 22.0 100 0.001 28.03 0.006 0301064250007

08 16th Fl N-E side 10/17/2001 1845.00 11.5 100 0.001 14.65 0.003 030106425-0008

09 13th Fl Elevator 10/17/2001 1860.00 22.0 100 0.001 28.03 0.006 Lobby 030106425-0009

10 12th Fl S-W side 10/17/2001 1845.00 16.0 100 0.001 20.38 0.004 030105425-0010 11 11th Fl East side 10/17/2001 1890.00 9.0 100 0.001 11.46 0.002 0301064250011

12 10th Fl Center 10/17/2001 1905.00 14.0 100 0.001 17.83 0.004 030106425-0012

George Mu /am Analyst Laboratory Mi ger or other approved signatory urea in nneraicc, w,lcn Is dependent on volume r relates only to the samples reported above. This report may not be except in full, without written approval by EMSL An1yafs performed by EMSL Manhattan (NY state ELAP #11508)

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NYC-WTC 000133010

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NYC-WTC_000133010Source: NYC Law Department, mirrored locally

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