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NYC-WTC_000232545
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NYC 9/11 Public Portal Document
Warren & Panzer Engineers, P.C. 228 East 45th Street New York, New York 10017 Tel. (212) 922-0077 Fax (212) 922-0630 October 17, 2001
Mr. Alex Lempert New York City School Construction Authority 30-30 Thomson Avenue Long Island City, NY 11101
Re: PS 234 Manhattan
Dear Mr. Lempert:
On October 4, and October 16, 2001, Warren & Panzer Engineers, P.C. conducted aggressive transmission electron microscopy (TEM) air sampling in the basement, floor, 2"^ floor, 3"* floor, and penthouse mechanical room of PS 234. Prior to any air sampling, walls, floors, and ceilings were leaf blown with the ventilation system on.
With the ventilation system in operation, five TEM air samples were collected per floor. Two additional samples per floor were collected by a third party consultant (Taylor Environmental Group) for quality control / quality assurance.
TEM analysis was performed in accordance with Appendix A of Subpart E of 40 CFR 763 by ATC Associates and EMSL on October 4 and October 16,2001.
Enclosed are TEM laboratory results for the basement, floor, 2"^ floor, 3"^^ floor, and penthouse mechanical room.
Sincerely, Warren & Panzer Engineers, P.C.
Fabio Pedone Project Manager
Enc.
/4 Member of The Warren & Panzer Group
CONFIDENTIAL, CITY_21MC100_013442531 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000232545
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NYC-WTC_000232545Source: NYC Law Department, mirrored locally
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