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Settled dust sampling letter, PS 89M, Dec 12 2001
Machine-extracted title · confidence 95%Correspondence from ATC Associates regarding settled dust bulk sampling for asbestos at PS 89M conducted on December 11, 2001.
NYC-WTC_000174727–000174729Page image
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OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
TC 104 East 25th Street New York, New York 10010 www.atc-enviro.com 212.353.8280 Fax 212.353.8306 ASSOCIATES INC.
December 12. 2001
Mr. Bernard P. Orlan Director, Environmental Health & Safety New York City Boai’d of Education 28-11 Queens Plaza North Long Island City, NY 11101
Re: Settled dust bulk sampling for asbestos at P.S. 89M
Dear Mr. Orlan:
At your request, ATC Associates, Inc. representative Mr. Yiannis Efstathiou (NYC-DEP asbestos investigator #82244 & NYS-DOL asbestos inspector certificate #AH 96-10905) visited P.S. 89M located at 201 Warren Street, New York, NY 10282 on December 11“’, 2001. The purpose of the site visit was to perform settled dust bulk sampling to be analyzed for asbestos content from unitvent filters and from the floor area behind the unitvents in locations indicated to ATC by Mr. Alex Lempert director of NYC-SCA Industrial & Environmental Hygiene Division.
A total of six (6) settled dust bulk samples were collected from locations indicated to ATC by a. NYC-SCA representative on site. All collected settled dust bulk samples were analyzed utilizing Polarized Light Microscopy (PLM).
The purposed of the dust bulk sampling is to determine if settled dust on the unitvent filters and on the floor area behind the urivents contains asbestos.
Analytical results indicated that two (2) collected settled dust bulk samples contain traces of asbestos fibers. All other four (4) collected settled dust bulk samples were found to contain .no asbestos fibers.
The proAdded settled dust bulk sample laboratory results are representative of the materials collected during ATC’s site visit only. Tlrese laboratory results should not be used to represent “similai-” materials collected during other time periods.
Attached please find the following;
® Settled dust bulk sample chain of custody and laboratory results • Laboratory and personnel certificates
CONFIDENTIAL, SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008 CITY_21 MC100_014660026
NYC-WTC_000174727
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NYC-WTC_000174727Source: NYC Law Department, mirrored locally
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