Environmental assessment request letter, February 2002

NYC 9/11 Public Portal Document

02/20/2002 09:21 FAX l i05i JLC ENVIRONMENTAL CONSULTANTS, INC. 200 Park Avenue South, Suite 1106, New York, New York 10003 Phone: (212) 420-8119 Fax: (212) 420-8092 The Renaissance Project No.: 01-2228 do Insignia Residential Group, Inc. ELAP Lab Code: 11029 Anaiyta: Alrbom Particulate 100 John Street New York, NY 10038 NIOSH and AIHA Lab Code. 100273 12/5/200 NVLAP Lab Code; 101953 Date Received: 1216/200 Site: '---_ Date Analyzed: 12,/61200 4M Iwhw C4s.nw1 Ar.,... %J- kR

Summary of Analytical Results - Particulates (Dust) SAMPLE l# LOCATION I DESCRIPTION VOLUME PLOD * LABS CONCENTRATION (mg!m3) (mg/m3) 01 Ambient in Door/ Dust Piano's Room! Entrance 397.5 225 Lobby 0.28

02 .Ao eiirDpor1Middle of Left Side Well between 383 PII 023 226 16th Floor

03 Ambient in Door! Dust Front Apt. [ _P_.II_ 24th Floor 394.5 0.18 227

04 Ambient in Door! Dust Front Apt. - Ph 1 394.5 _._._._._._._._._._._._._._._.. 0.25 228

06 Ambient in Door! Dust Front Lobby Between Lamp 394.5 0.33 229 and Big Picture

06 Ambient in Door! Dust Middle Right Side Between 394.5 0.20 230 Apts. _.

. P.. _._]16th Floor

07 Ambient in Door/ Dust Front Apts ._ Pii. _' 24th Floor 390 0.23 231

Sample Analysis by ol5ncoflmlt Of d0ts0110fl *hiQh lB 02 mgi aW vo Analytical Balance Method of Sarre Preparation and Analysis All samples were prepared and analyzed in accordance with the National Institute of Occupational Safety and Health (NIOSH) Method 0500 02115184. Instrumentation: Denver A-200DS, with resolution at 0.01 mg.

iTâm Machhiwala Laboratory Director OSHA Permissible Exposure Limit (PEI.) for total Nuisance Dust is 5 mg1m3 Disclaimer: The above samples were not collected by JLC Environmental Consultants. Inc. maintenanoo. JLC relies an the client for all samples Information prior to delivery and thus accepts no liability with regard to their collection at JLC. Page 1 of 2

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