Environmental assessment request letter, February 2002

NYC 9/11 Public Portal Document

02/20/2002 09:17 FAX IM 044

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 ELAP Lab Code: it029 do Insignia Residential group, Inc. Ahalyte: FIBERS 100 John Street NIOSH and AIHA Lab Code' 100273 Date Received: 12/7101 New York, NY 10038 NVLAP Lab Code: 101853 Date Analyzed: 1217101 SUMMARY OF ANALYTICAL RESULTS - PCM Batch#: o112A9 8

Site: L .____________ 100 John Street, New York, NY SAMPLE # COLLECTED DESCRIPTION! LOCATION TIME(min) VOLUME(L) PIEIFIELp RES(ILTS(dca) LAB 0

007 Ambient/ Indoor/ PCM/ Front Apartment; Pli 271 2243.88 08-December 121100 24th Floor A 9706

008 Ambient! Indoor/ PCM/ Between Elevators 3 & 4/ 263 08-December 2177.64 7/100 9 ? Penthouse A 9707

009 FIELD BLANK 08-December 0/100 A 9708

010 FIELD BLANK 08-December 0/100 A 9709

3arnpIe Anatys a by; (LOt ,* Less than limit of detection which is 5.3 Fibera1100 Plaids Positive Phase Contrast Microscopy (PCM) VOIDI - H.C.P. ( High Concentration of Particles) V0102 Overloaded Method of Sn'mle Proosrahon end Analysis; All samples analyzed In accordance with the NIOSH 7400 Method using "A" Counting Rules. Issue 2, August 1594 Instrumentation: Olympus PCM Model BH-2 with Welton-Beckett Gretloule (100um field diameter). Laboratory Director Report Date: December 10, 2001 JLC Is responsible for only the fiber counts within the limitations of the method gives only an index of airborne fibers and provides only an estimate of asbestos described as NIOSH 7400. Among other limitations, this meth these samples are IImited In recovery to the oast of analyzing samples. JLC accepts concentration. Any and all claims arising out of JLCs analysi no other liablilty and the dent agrees to seek no costs b the above, Page 8 of 8

NYC-WTC 000123841