Environmental assessment request letter, February 2002

NYC 9/11 Public Portal Document

02/20/2002 09:15 FAX l :l039

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.: 01-2226 The Renaissance FLAP Lab Coda: 11029 Analyte: FIBERS oto Insignia Resldentlal Group, Inc. 100 John Street NIOSH and AII4A Lab Code: 100273 Date Received 1218/01 Now York, NY 10 038 NVLAP Lab Code: 101953 Date Analyzed: 1215101 Batch #: 0112A946 SUMMARY OF ANALYTICAL RESULTS - PCM Site; 100 John Street, New York, NY

SAMPLE # COLLECTED DESCRIPTION I LOCATION TIME(min) VOL.0 MIE(L) FIBIFIEL D RESULTS(ftec) LAB#

001 Ambient/ Lobby/ Main Lobby/ North West! West 240 1923.8 4/100 0.001<LOD 04-December Wall Near Painting A 9564

002 Ambient! 10th Floor!_ We st of Corridor/ Between 240 1923.8 2/100 <0.001<LOD 04-December Apartment A 9585

003 Ambient! 24th Floor/ West Side of Corridor/ Near 240 1923.8 4/100 0.001<LOD 04-December Apartment PII._. A tW

004 Ambient/ 34th.Floor/ West Side of Corridor/ Near 240 1923.8 2/100 <0.001<LOD 04-December PII______ A 9567

003 Ambient/ Lobby/ Main Lobby/ South East/ With 300 2404.8 4/100 c0,001 'CLOD 04-December Stairs to Lounge A 9968

000 Ambient! 18jh.-Floor/ East Side of Corridor/ Near 280 2244.4 2/100 c0.001<LOD 04-December Apartment # P1! A 9569 .

Sample Analysis bX: cLOD = Less than limit of detection which Is 5.5 Fibers/ 100 Plaids Positive Phase Contrast Microscopy (PCM) VOIo1 = H.C.P. ( High Concentration of Particles) VOLD2 = Overloaded Method of Sample Pranaraaoe, and Analvala: All samples analyzed In accordance With the NIOSH 7400 Method using "A" Counting Rules. sI sue August 1994 2, Instrumentation: < YOML.; Olympus PCM Model BH-2 with Walton-Beckett caradcule (bourn field dtameteq, u Laboratory Director Report Date; December 5, 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 asbestos concentraton. Any and at claims arising out of JLC's analyst

these limited samples are

of in r

JLC accepts no other liability and the client agrees to seek no cosh b acovery

to the cost analyzing

samples.

the

above.

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