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NYC-WTC_000198906
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NYC 9/11 Public Portal Document
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 Efstatliiou (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 ll‘\ 2001. The purpose of the site visit was to perform settled dust bulk sampling to be analyzed for asbestos content from unitvent filters and fiom the floor area behind the unitvents in locations indicated to ATC by Mr. Alex Lempei-t 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 uni vents 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 provided settled dust bulk sample laboratory results are representative of the materials collected during ATC’s site visit only. These laboratory results should not be used to represent “similar” 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
CITY_21MC100_003030781
NYC-WTC_000198906
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NYC-WTC_000198906Source: NYC Law Department, mirrored locally
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