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Certificate of Laboratory Analysis for lead air samples, Sept 2001

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Certificate reporting lead analysis results from air samples collected at the World Trade Center site on September 23, 2001.

NYC-WTC_000174987–000174990
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NYC 9/11 Public Portal Document 104 Elden Street Phone: 703 • 471-4200 Herndon. Virginia 22070 Facsimile: 703 • 471-0020

HP ENVIRONMENTAL INCORPORATED

Certificate of Laboratory Analysis ET Environmental, Inc. Date Received 9/23/01 Report Number 014885 Attn: George Pineda 3424 Peachtree Road, Suite 200 Date Reported 9/26/01 Page 1 of 3 Atlanta, GA 30326 Project Location Project 7600: World Trade Center, NY, NY

1. Client Sample No.: WTC-092301-01Pb HPE Sample No: 014885-01 Sample Matrix: Air (882 liters) Date Collected: 9/23/01 Sample Location: Turner' s onsite office, entry ara

Test Requested: Lead • NIOSH 7082 Analvte Result Units POL Lead <0.1 pg/m3 0.1 Date Analyzed: 9/25/01 Analyst: SunB. Cambron

2. Client Sample No.: WTC-092301-02Pb HPE Sample No; 014885-02 Sample Matrix: Air (865 liters) Date Collected: 9/23/01 Sample Location: On Piotr Cbmielinski, during all day monitoring activities Test Requested: Lead • NIOSH 7082 Analyte Result Units PQL Lead <0.1 pg/in3 0.1

Date Analyzed: 9/25/01 Analyst: SunB. Cambron

3- Client Sample No.: WTC-092301-03Pb HPE Sample No: 014885-03 Sample Matrix: Air (677 liters) Date Collected: 9/23/01 Sample Location: North side of Building 7, on crane's cabin

Test Requested: Lead • NIOSH 7082 Analyte Result Units POL Lead 4.8 pg/ml 0.1

Date Analyzed: 9/25/01 Analyst: SunB, Cambron

J.M02376

CONFIDENTIAL, CITY_21MC100_003416377 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000174987

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NYC-WTC_000174987Source: NYC Law Department, mirrored locally

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