Environmental assessment request letter, February 2002

NYC 9/11 Public Portal Document

02/20/2002 09:29 FAX 1 065 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.: 01-2094 Mazal Group LLC (100 .John Street) SLAP Lab Code: 11029 Analyte: FIBERS One West street NIOSH and AIHA Lab Code; 100273 Data Received: 9120101 New York, NY 10004 NVLAP Lab Code: 101953 Date Analyzed: 9120/01 SUMMARY OF ANALYTICAL RESULTS - PCM 0109A843 i #' Site. L.. 100 John Street, New York, NY

SAMPLE # COLl.ECTEO DESCRIPTION1LOCATION TIME(min) VOLUME(L) FIe/FIELD RESULTS(f/cc) LAt3 a

013 Ambient! 30th Floor! Hallway 19-September 60 923 6/100 g,,gQ3 A 8330

014 Ambient/ Apartment 1€ P11 Foyer/ Living Room 60 19-September 923 61100 0004 Area A 6331

015 Ambient/ 28th Floor/ Hallway 60 923 5/100 0.003<LOD 19-September A 6332

016 Ambient/Apartment .__P11 Foyer Area 60 923 19-September 6/100 0 0Q A 8333

017 Ambient/ 27th Floor/ Hallway 60 923 8/100 0.004 19-September A 6334

018 Ambient! Apartment # ._._._._._ ii1Foyer 60 923 4/100 0.002<Ldb 19-September A 6335

Sample AnaIyete by: <LOD = Less than limit of detection whloh is 6.6 Fibers/ 100 Fields Pos re Phase Contrast Microscopy (Pcm) VOIDt = H.C.P. (High Concentration of Paitloles) VOID2 = Overloaded

All samples analyzed In accordance with the NIOSH 7400 Method using "A" Counting Rules. Issue 2, August 1994 lhstwmentation: Olympus PCM Model BH-2with Waiton"Beckett Gratioute (100um field diameter). Laboratory Director Report Date: December 11, 2001 JLC Is responsible for the fiber counts only

the the method described within

NIOSH 7400. Among other gives only an Inriex of airborne liters and provides only an of

limitatlohs

as

limitations, this

meth

estimate

claims anteing these semptes ale limited in recovery to the cost of analyzing samples. JLC accepts nn nther liability and the of

aebeetos

analyal cohoehiration.

Any

and all

out

of JLC's

the above. client agrees to cock no Costa b Page 3

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