NYC-WTC_000219917

NYC 9/11 Public Portal Document

03/01/2003 00:40 212-290-2538 EMSL ANALYTICAL INC PAGE 01/02

EMSL Analytical, Inc. 307 West Jam SVeoL New York, NY 10018 emsl; Phon®: (2131 290-00S1 Fax: (212) 290-005E_ Email: manhattanlabraemal.com

Atm: TRC Environmental Consultants Customer ID; TRCE51 1430 Broadway Customer PO: 10th Floor Received; 02/26/03 3;S5 PM New York, NY 10016 Fax; (212) 221-7840 Phone: 212-221-7822 EMSL Order 030303182 Project: 35052-0000-00017/ Now York City Department /100 EMSL Project ID; Church St. / /Vnhiant Analysis Data; 2/28/2003

Phase Contrast Microscopy (PCM) Fiber Count by NIOSH 7400, Fourth Edition, Issue 2, 8/15/94 LCD Fibers/ Fbers/ Sample Location Sample Date U'alunu Fibers Fieiils (fib/ec) mm’ cc Nous

ZDQ22aO3AS3Al 20th Floor Exit to 2/28/2003 1533.33 <5.5 100 0.002 <7.0 <0.002 R2001 North Corridor 0503031S2-00O1

ZD0223O3ASBAI 20th Floor Exit to 2/26/2003 1527.02 <5.5 100 0.002 <7.0 <0.002 R2002 South Corridor 030J03182-0003

2D022S03ASBAI 20th Floor Exit to 2/23/2003 1520.71 <5.5 100 0,002 <7.0 <0.002 R2003 North Corridor 03Q30.11B3-0003 2O0228O3ASBAI 20th Floor Exit to 2/28/2003 1527.02 <5.5 100 0.002 <7.0 <0.002 R2Q04 South Corridor 030303182-0000 ZD022803ASBAI Blank 2^28/2003 0.00 <5.5 100 <7.0 Piold Blartt RFB05 030303132-0003

Zeno Mezhoiits/ty

Analyst Laboratory Manager or other approved signatory

Limii or calediw is 7 OMra/mm* The latoralory is not responslclo (er saw rsoonad in fibers/ec, ‘*nlch i: daperulent on voiumB eotlenea By nar-laboraiary oBrsonnel. This reoon rsletes only to the samples reported above. This report moy n«l be reproduoed, eircapt In full, wiihsulwrltien opprovel by EMSL. Anslysls peiTormod by EMSu Manhallon INV Sisio ELAP *11506. AIH4 *103.581)

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NYC-WTC_000219917