80 JOHN STREET; Block: 68 Lot: 33 BIN: 1001115 19-25 Gold Street, 25-27 Platt Street

NYC 9/11 Public Portal Document

DEC.14.2001 1239PM JLC ENVIRONMENTAL NO.449 P.8 ENVIRONMENTAL CONSULTAN . , INC. 200 rark Avenue South, Suite 1108, New York, New York 10003 Phone; (212) 420-8119 Fax: (212) 420-6092 WSA Management Project No.: 01-2240 100 Ring Road West ELAP Lab Code, 11029 Analyte: Alrbom Particulate Garden City, NY 11530 NIOSH and AIHA Lab Code: 100273 Date Collected: 12113/0', NVLAP Lab..Code: 101953 Date Received: 12/13/01 Date Analyzed: , • 12/13/01 Site: h ._._._._._._P IL_._._._._._. ew York, NY

Summary of Analytical Results - Particulates (Dust) SAMPLE # LOCATION / DESCRIPTION VOLUME PLOD CONCENTRATION LAB # (mg / m3) , , (mg / rn3)

01 Ambient/ 4th Floor/ Apartment Living Roots 120 1.000 224001 East Wall Near Door

02 Ambient/ 4th FloorlApartnieni PII ;West Bedroom 120 0.830 .{ 224002 on West/ Near Closet

03 Ambient/ pith Floor/ Corridor/ South Side With 120 0.417 224003 South Wall

04 ` Ambient/ 4th Floor/ Corridor/ North Side on North 120 • 0.100, ,.s, l . 224004 Wall

05 Ambient/CU, Floor/ Corridor/ South Side on South 120 0.142 224005 Wall

06 Ambient/ 6th Floor/ Corridor/ North Side on North 120 0.192 224006 Walt

07 . :n Ambient/ 12th Floor/ Apartment; PII fringl 120 224007 Kitchen Counter on South 0.912 ,, ...,.

.amALà Analysis • P LOD n Performance limit of detection, which is 0.2 mg/ air volume (I). Analytical Balance Method of Sample Pragaritlon and Analysis All samples were prepared and analyzed In accordance with the National Institute of Occupational Safety and Health (NIOSH) Method 0500 02/15/64. Instrumentstian- Denver A-2000S1 with resolution at 0.01 mg.

•Gulam Machhiwala Laboratory Director ' OSHA Permissible Exposure Limit (PEL) for total Nuisance Dust is 5 mg/m3

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