EPA review letter, 133-135 Greenwich Street

NYC 9/11 Public Portal Document

Report Date: 8/15/2005 Client Project ID: 05-0701 York Project No.: 05080368

Airtek Environmental 39 West 38th St., 12th Floor New York, NY 10018 Attention: Mike Porter

Purpose and Results This report contains the analytical data for the sample(s) identified on the attached chain-of-custody received In our laboratory on 08/11/05. The project was Identifed as your project "05-0701 ".

The analyses were conducted utilizing appropriate EPA, Standard Methods, and ASTM methods as detailed in the data summary tables.

All samples were received In proper condition meeting the NELAC acceptance requirements for environmental samples except those indicated under the Notes section of this report.

All the analyses met the method and laboratory standard operating procedure requirements except as Indicated under the Notes section of this report, or as indicated by any data flags, the meaning of which is explained in the attachment to this report, If applicable.

The results of the analyses, which are all reported on an as-received basis unless otherwise noted, are summarized In the following table(s).

Analysis Results Client Sample ID 133 Greenwich St. 2nd Fl. Kitchen S. Side York Sample ID 05080368-01 Matrix WTC DUST Parameter Method Units Results MDL TCLP Polynuc. Arom. H droc. SW846-8270 u — --- Acena hthene Not detected 10 Ac hth lens Not detected 10 Anthracene Not detected 10 Benno a anthracene Not detected 10 Benzo a e Not detected 10 Benzo fluoranthenc Not detected 10 Benw lens Not detected 10 Benno fluoranthene Not detected 10 t✓h sae Not detected 10 Dibenz anthracene Not detected 10 Fluoranthene Not detected 10 Fluorene Not detected 10 Indeno 12 3-cd Not detected 10 Naphthalene Not detected 10 Phenanthrene Not detected 10 Pyrene Not detected 10

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