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Lead in dust results letter, Liberty Street, Apr 2003

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Cover letter transmitting lead in dust sampling results for the 12th floor of 114 Liberty Street.

NYC-WTC_000132178–000132260
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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 4 rk City D.E.P. ELAP Lab Code: 11029 Analyte: LEAD! WIPE i notion Blvd. NIOSH and AIHA Lab Code: 100273 Date Collected 3/29/2003 =iushing, NY 11373 NVLAP Lab Code: 101953 Date Received: 3/30/2003 Date Analyzed: 3/30/2003 Batch #: 0303L410

Site: 114 Liberty Street, 12th Floor, 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)

25 Lead Wipe/ 4th Floor/ Hallway/ Floor 12x12 <9 3436 25

26 Lead Wipe/ 4th Floor/ Kitchen! Counter Top 12x12 <9 3437 26

27 Lead Wipe/ 4th Floor/ South East Bathroom! North Wall/ 12x12 <9 3438 Lower Left 27

28 Lead Wipe/ 3rd Floor/ Hallway/ Floor 12x12 <9 3439 28

maple Analysis By Atomic Absorption Spectrometry (AAS) using an air-acetylene flame with background correction. Method of Sample Preparation and Analysis All samples were prepared and analyzed In accordance with the HUD "Guidelines for the Evaluation and Control of Lead Based Paint Hazardous In Housing" Appendix 14.2 and the Environmental Protection Agency Method EPA SW846-3050/7420.

Guam Machhlwala Collected By: Peter Koslowsky Laboratory Director Analyzed By: Madeil Collins

Minimum Dectection Limit = <20 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 ug/ft2 for window and exterior concrete or other rough

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NYC-WTC 000132186

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NYC-WTC_000132186Source: NYC Law Department, mirrored locally

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