NYC-WTC_000205179

NYC 9/11 Public Portal Document

JLC ENVIRONMENTAL CONSULTANTS. INC. 200 Park Avenue South, Suite 1001, New York, New York 10003 Phone; (212) 420-8119 Fax (212) 420-6092 P.T. & L. Environmental Services Project No.; 01-2083010 ELAP Lab Code: 11029 Analyte: LEAD ^Kette Drive P^us, NJ 07S52 NIOSH and AIHA Lab Code; 100273 Date Collected: 9/25/01 NVLAP Lab Code: 101953 Date Received; S/25/C1 Dale Analyzed: 9/27/01 Site: WTC #5,6 & 7 - Greenwich Lah Batch#; 0109L2001

SUMMARY OF ANALYTICAL RESULTS - AIR

Sample # Lab # Description/ Location Volume (liter) Results (ug/m3) Client's Sample #

1 Inside the Trailer 960 9.7 17124 56504 2 Sign-in/ out/ Trailer 780 21.0 17125 56505 3 Comer of Murray & Greenwich 780 13.8 17126 56507 ^127 FIELD BLANK <4/ Filter

105 5 FIELD BLANK <4/ Filter 17128 106

Sample Analysis by; Alomis Absorption Speotronieliy (AAS) with an air-acetyiene burner head (Flame) and background correction (AAS-Flame). Method of Sample Preparation and Analysis Collected By; Charles Colbert All Samples were prepared and analyzed in accordance with NIOSH Method 7082, February 15,1984. Analyzed By; Tamara Melelkina

Gulatn Machhiwala Laboratory Director

1 Dectection Limit = <4.0 ug/m3 % OSHA Permissible Exposure Limit (PEL) for General Industry is 50 ug/m3.

DISCLAIMER: JLC Environmental Consultants, Inc. did not collect the analyzed samples and thus accepts no liability with regard to their collection and/or maintenance. JLC relies on the client for all sample information prior to delivery al JLC. Page 1 of 1

CITY_21MC100_003260776

NYC-WTC_000205179