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Lead in dust results letter, Liberty Street, Mar 2003

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Cover letter transmitting lead in dust sampling results for 114 Liberty Street.

NYC-WTC_000132108–000132176
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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 Project No.: 03-2744 N ork City D.E.P. ELAP Lab Code: 11029 Analyte: LEAD! WIPE action Blvd. NIOSH and AIHA Lab Code: 100273 Date Collected 3/5/2003 Fius ing, NY 11373 NVLAP Lab Code: 101953 Date Received: 3/6/2003 Date Analyzed: 3!6/2003 Batch #: 0303L322

Site: 114 Liberty Street, New York, NY

SUMMARY OF ANALYTICAL RESULTS - DUST WIPE

Sample # Description/ Location Area In Inches Lead Lab # (L x W) Concentration Client's Sample (ug/ft2)

1 9th Floor/ Lead Dust/ Floor/ Hallway 12x12 26.5 2571 01

2 9th Floor/ Lead Dust! Wall! Bathroom/ Lower Left 12x12 <9 2572 02

3 9th Floor/ Lead Dust/ Counter Top/ Kitchen 12x12 60.5 • 2573 03

Sample Analysts Bv: Atomic Absorption Spectrometry (AAS) using an air-acetylene flame with background correction. Method of Samole Preparation and Analysis All samples were prepared and analyzed In accordance with the HUD "Guidelines for the Evaluation and Control of Lead Based Paint Haza u in uslnng" Appendix 14.2 and the Environmental Protection Agency Method EPA SW846-305017420.

Gulam Machhiwala Collected By: Shawn Rajkumar Laboratory Director Analyzed By: Madell Collins

Minimum Dectection Limit = c20 ug/ft2 HUD "Guidelines for the Evaluation and Control of Lead-Based Paint Hazardous In Housing" 06/95; define the clearance standards, based on wipe sampling are: *40 ug/ft2 for floors; '250 ug/ft2 for interior window sills; *400 ugfft2 for window and exterior concrete or other rough

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NYC-WTC 000132111

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NYC-WTC_000132111Source: NYC Law Department, mirrored locally

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