Dioxin analysis chain of custody, Sep 2002

NYC 9/11 Public Portal Document

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Certificate ofAnalysis CLIENT INFORMATION LABORATORY INFORMATION

Attention: Michael Salum Contact: Ada Blythe, B.Sc., C.Chem. Client Name: Philip Analytical Services Inc Project: AN023026 Project: Misc. Date Received: 17-Sep-2002 Project Desc: Date Reported: 22-Oct-2002

Address: 4418 Pottsville Pike Submission No.: 2I0647 Reading, Pennsylvania Sample No.: 060266-060284 19605 Fax Number: 610 921-9667 Phone Number: 610 921-8833

NOTES: -' not analysed '<' = less than Method Detection Limit (MDL) 'NA' = no data available LOQ can by determinedfor all analytes by multiplying the appropriate MDL X 3.33 Blank correction is only performed on oil and grease, BTEX, total purgeable hydrocarbons and VOC analyses when Canadian methods are utilized. Solids data is based on dry weight except for biota analyses. Organic analyses are not correctedfor extraction recovery standards except for isotope dilution methods, (Le. CARB 429 PAH, all PCDD/F and DBD/DBF analyses) The enclosed copy of the Chain of Custody Record may contain information necessary for the interpretation of the data.

Methods used by PSC Analytical Services are based upon those found in 'Standard Methods for the Examination of Water and Wastewatcr', Nineteenth Edition. Other methods are based on the principles of MESA or EPA methodologies. New York State: FLAP Identification Number 10756.

All work recorded herein has been done in accordance with normal professional standards using accepted testing methodologies, quality assurance and quality control procedures except where otherwise agreed to by the client and testing company in writing. Any and all use of these test results shall be limited to the actual cost of the pertinent analysis done. There is no other warranty expressed or implied. Your samples will be retained at PSC Analytical Services for a period of three weeks from receipt of data or as per contract.

COMMENTS:

Certified by: Page! of I

NYC-WTC 000107582