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Document / 45 pages

Air monitoring report, 345 South End Avenue, Dec 2001

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Air monitoring report for 345 South End Avenue buildings conducted in December 2001 showing TEM results.

NYC-WTC_000121138–000121182

Folder label: “345 SOUTH END AVENUE Block: 16 Lot: 100 BIN: Parking Garage

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NYC 9/11 Public Portal Document %Eew ec rk ?Jew rpr K i 0010 VVVVW atc-cnviro corn 212 353-8280 Fax 2123538305 ASSOCI ATES i N G

November 29, 2001

ABC Environmental '_ 15 W. 3 ,tri Street New York, NY 1000i Attn. Mr. Joshua Saret:

Re: Report of TEY fi r. lyss

Dear Mr. Saretr_

ilow'_na are the results of transmiss=on electron microscopy (TEM) analysis of air samples from our croup NC 5990 -

01:e r_ - Gateway Plaza Mnat- Corp rrc ect Name ua_dlnc 100 a: Ga=eay Plata 4 .lid Ave location: 5th -'.o0: Samples received • 11/29/0'_

These results will confirm and document the data rranstrittec today to you. The analyses were performed in strict conformance wit toe methodolocy of the A=:ER.A Final Rule 'CER Cctooer 30, 1997) for clearance of abatement sites. The results are as indicated I on the attached document

Results reported as Struct/cc are a function of air volume collected in the field and are, as such, no: verifiable by t^is laboratory. This report may be reorodaced cniy in its entirety and not without o_ior permission of this iabcratory. If the post - abatement inside samoles pass, the response aer_.r. may oe considered to have been completed The analyses were superv:sed by Dr. Michael A. GcrycKl, ,,:rector of Electron Microscopy.

We are pleased to note that our TEM lab has received full ac~red_tatior, 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 any questions relating to these materials.

Very truly yours,

Michael A. Gorycki, Ph.D. Director of Electron Microscopy

NYC-WTC 000121162

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NYC-WTC_000121162Source: NYC Law Department, mirrored locally

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