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Lead dust wipe lab report, 114 Liberty Street, Mar 2003

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Laboratory summary of lead analysis results from dust wipe samples collected at 114 Liberty Street in early March 2003.

NYC-WTC_000177537
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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 Np- City D.E.P. ELAP Lab Code; 11029 Analyte: LEAD/WIPE 5; .jnction Blvd. NIOSH and AIHA Lab Code: 100273 Date Collected 3/5/2003 Flushing, NY 11373 NVLAP Lab Code: 101953 Date Received: 3/6/2003 Date Analyzed: 3/6/2003 Batch #: O303L323 I Site: 114 Liberty Street, New York, NY

SUMMARY OF ANALYTICAL RESULTS - DUST WIPE

Sample # Description/ Location Area in Inches Lead Lab# (Lx W) Concentration Client's Sample (ug/ft2)

1 7th Floor/ Lead Dust/ Floor/ Hallway 12x12 35.5 2577 01

2 7th Floor/ Lead Dust/ Wall/ Living Room/ Lower Right 12x12 <9 2578 02

3 7th Floor/ Lead Dust/ Counter Top/ Kitchen 12x12 <9 2579 03

Sample 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.

Gulam Machhiwala Collected By: Shawn Rajkumar Laboratory Director Analyzed By; Madell 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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CONFIDENTIAL, SUBJECTTO PROTECTIVE ORDER NO. 1, JAN. 2013

CITY_DEP_WORBY_CANNATA_SUBP_000008894

NYC-WTC_000177537

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NYC-WTC_000177537Source: NYC Law Department, mirrored locally

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