Environmental assessment request letter, February 2002

NYC 9/11 Public Portal Document

02/20/2002 09:30 FAX IZ 067 JLC ENVIRONMENTAL CONSULTANTS, INC. 200 Park Avenue South, Suite 1001, New York, New York 10003 Phone: (212) 420-8119 Fax (212) 420"6082

Metal Group U.0 (100 John Streit) Project No.. 01-2094 HLAP Lab Code: 11029 Analyte. One West Street FIBERS NIOSM and AIHA Lib Code: 100273 Date Received: New York, NY 10004 9120 1 NVLAP Lob Code: 101963 Date Analyzed: 9120/01 SUMMARY OF ANALYTICAL RESULTS - PCM Bato6 #: 0109A043 Site: 100 John 3tre t, New York, NY

SAMPLE # COLLECTED UESCItIPTION I LOCATION LAB# TIME(min) VOLUMf(L) FIB/FIELD RESULTS(itcc)

025 Ambient! 23rd Floor! Halfway 19-September 60 923 16/1 00 0.009 A 6342

026 Ambient! Apartment t'_. PH :t Foyer Area I9•September 70 1077 6/100 0.003 A 6343

027 Ambient! 22nd Floor/ Hallway 70 19-September 1077 5/100 0.003<Lob A 6344

028 Ambient/ 22nd Floor/ Laundry Room 70 19-September 1077 10/100 0.005 A 6345

029 Ambient! 21st Floor/ Hallway 70 19-September 1077 31100 Ufl1<LOD A 6346

030 Ambient! Apartment ._P!i_.t Foyer/ Living Room 70 19-September 1077 71100 Q__03 Area A 6347

Sample Analysis : cLOD = Less then limit of detection which Is 6.8 Fibers/ 100 GIs Positive Phase Contrast Mloroeoopy (PCM) VOIDI = H.C.P. ( High Concentration of Particles) V0102 = Overloaded All samples analyzed in aeoordance with the NIOSH 7400 Method using "A" Counting Rules. Issue 2, August 1994 Instrumentation: M~ • 1-. 1A Olympus PCM Model BH-2 with Walton•8eokett (3ratiouie (f OOum told diameter). a Laboratory Director Report Date: December 11, 2001 JLC Is responsible for only the fiber counts Within the limitations of the method described as NIOSH 7400. Among other limitations, this moth gives only an Index of airborne fibers and provides only an estimate of these samples are limited in recovery to the cost of analyzing samples.asbestos concentration. Any and all claims arising out of JLC's analyst JLC accepts no other liability and the olient agrees to seek no the abOVe, costs b Page 5 of 8 ii ry

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