Environmental assessment request letter, February 2002

NYC 9/11 Public Portal Document

02/20/2002 09:13 FAX l l037 JLC ENVIRONMENTAL CONSULTANTS, INC. 200 Park Avenue South, Suite 1001, New York, New York 10003 Phone: (212) 420-8119 Fax: (212) 420-6082 Project No.: 01.2226 The Renaissance ELAP Lab Code: 11029 Anayte: clo InsInia Residential Group. Inc. FIBERS 100 John Street NIOSH and AAHA Lab Coda: 100273 Date Received: 1213/200 New York, NY 10038 NVLAP Lab Code: 101953 Date Analyzed: 12/41200 SUMMARY OF ANALYTICAL RESULTS PCM t#c 0112A936

Site: 100 John Stief; New York, NY —~

SAMPLE a COLLECT@) DESCRIPTION I LOCATION TIML(min) VOLUME(L) F1BIFIELD REBLILTS(flc c) LABS

001 Ambient! Lobby Opposite Elevators! On East Wall 265 2124.2 7/100 03-December A 9490

002 Ambient!16th Floor! East Wall! Near Apartment 260 2084.1 8/100 0.002 03-December # P11 A 9496

003 Ambient! 24th Floor/ East Wall Near Apartment 256 2044 5/100 0.001<LOD 03-Oe0emt #~L PII A 9497

004 Ambient! 34th Floor/ North Wall! Nears PII 220 1763.5 5/100 0901<LOD 03-December PII A 9498

005 Ambient! Lobby/ South Wall/ Near Stairs to 240 1923.8 10/100 0 03 03-December Lounge A 9499

006 Ambient! 16th Floor/ West Wall in Corridor! Near 240 1923.8 4!100 0.001<LOD 03-December Apartment # PII A 9500

Sample Analysis by: <LOD = Less than limit of detection which is 5.5 Fibers!100 Plaids Positive Phase Contrast Microscopy (PCM) VOIDI s H.C.P. ( High Concentration of Padldes) VOID2 = Overloaded Math All samples analyzed In accordance with the NIOSH 7400 Method using °A" Counting Rules. ve 2, gtt 4 instrumentation: Olympus PCM Model 314-2 with Walton-Beckett Orotioule (100um field diary UE ifiFWT' r). Laboratory Director Report Date: December 4, 2001 JLC i8 responsible for only the Iiber counts whin the limitations of the method described as NIOSH 7400. gives only an index of altbome fibers and provides only an estimate of asbestos concentration. Any and allAmong other limitations, this math these samples are limited In recovery to the Cost of analyzing samples. JLC accepts no other claims arising out of JLCs analys liability and the client agrees to seek no costs b the above. Page 1 of 2

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