5 shared non-person entities · 1 shared topics · similarity 0.995
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NYC-WTC_000202451
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NYC 9/11 Public Portal Document
104 East 25th St, 10th Fl New York, New York 10010 www.atc-enviro.com 212.353.8280 Fax 212.353.8306 ASSOCIATES INC.
August 21, 2002
Mr. Bernard P. Orlan New York City Board of Education Director, Environmental Health & Safety Unit 28-11 Queens Plaza North Long Island City, NY 11101
Re; Settled dust bulk sampling for fiberglass at P.S. 234M
Dear Mr. Orlan;
At your request, ATC Associates, Inc. representative Mr. Herant Antonyan visited P.S. 234M located at 292 Greenwich Street, New York, NY 10007 on August 20, 2002. The purpose of the site visit was to perform a settled dust bulk sampling to be analyzed for fiberglass fiber content on areas indicated to ATC the New York City Board of Education (BOE). These areas are the following:
• L‘ floor hallway - One (1) sample • Cafeteria - One (1) sample • Gymnasium - One (1) sample • Auditorium - One (1) sample • 2"'^ Floor Classrooms - Seven (7) samples • 3^^* Floor Classrooms - Seven (7) samples • r‘Floor Classrooms-Five (5) samples • Outside small playground - Three (3) samples on playground surfaces • Outside large playground - Five (5) samples on playground surfaces • Exterior main building entrance - Three (3) samples on ground at exterior main entrance
Bulk samples of settled dust to be analyzed for fiberglass fiber content were collected only from locations where there was sufficient amount of settled dust for bulk sampling and analysis.
The purpose of the dust bulk sampling is to determine if settled dust in the school contains fiberglass fibers.
A total of thirty-four (34) settled dust bulk samples were collected from the aforementioned areas where there was sufficient amount of settled dust for bulk sampling and were analyzed utilizing Polarized Light Microscopy (PLM).
Analytical results indicated that none of the thirty-four (34) collected settled dust bulk samples contained traces of fiberglass fibers.
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NYC-WTC_000202451
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NYC-WTC_000202451Source: NYC Law Department, mirrored locally
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Document recording the chain of custody for settled dust samples collected at PS 234M to test for fiberglass content.
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Chain of custody form and correspondence regarding settled dust bulk sampling for fiberglass at P.S. 234M on January 29, 2002.
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Letter and form documenting the chain of custody for settled dust bulk samples collected at P.S. 234M for fiberglass analysis by ATC Associates.
6 shared non-person entities · 1 shared topics · similarity 0.990
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Letter from ATC Associates to the NYC Board of Education requesting settled dust bulk sampling for fiberglass at P.S. 89M on May 24, 2002.
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Letter from ATC Associates to the NYC Board of Education requesting settled dust bulk sampling for fiberglass at P.S. 89M on June 21, 2002.
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Document recording the chain of custody for settled dust samples collected at PS 234M to test for fiberglass content.
Similarity score 0.994 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175978
Letter and form documenting the chain of custody for settled dust bulk samples collected at P.S. 234M for fiberglass analysis by ATC Associates.
Similarity score 0.994 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000178643
Chain of custody form and correspondence regarding settled dust bulk sampling for fiberglass at P.S. 234M on January 29, 2002.
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