TEM lab report for asbestos air samples, Sept 2002

NYC 9/11 Public Portal Document

104 East 26th St., 10th F New York, New York 1001C www.atc-enviro.corr 212.353,828C Fax 212.353.830€ ASSOCIATES INC.

September 27, 2002 ATC Associates Inc. 104 East 25th Street New York, NY 10010

Attn: Mr. Ben Sallemi

Re: Report Of TEM Analysis

Dear Mr. Sallemi:

Following are the results of transmission electron microscopy (TEM) analysis of air samples from our' Group No. 8898:

Client: D.E.P. Project Name: D.E.P. Clean-up, 125 Cedar St., NY, NY Location: Around Building Samples received: 09/26/02

These results will confirm and document the data transmitted today to your office. The analyses weRe performed in strict conformance with the methodology of the AHER/^ Final Rule (CFR October 30, 1987) for clearance of abatement sites.

The results of the sample analylses may be found on the attached document. Results reported as Struct/cc' are a function of air volume collected in the field and are,- as such, not verifiable by this laboratory. This report may be Reproduced only in its entirety and not without prior permission of this laboratory.

We are pleased to note that our TEM lab has received full accreditation from NVLAP, as is^currently required for recognized analysis of TEM air samples for;AHERA projects, and also approval under the NY State DOH ELAP ^program. These analyses were performed by ATC d/b/a ATC Associates Inc.

Please contact me regarding dny questions relating to these materials.

Very truly yours,

Michael A. Gorycki, Ph.D. Director of Eleccron Microscopy:

CONFIDENTIAL, CITY_21MC1OO_OO3446612 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

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