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NYC-WTC_000203463
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NYC 9/11 Public Portal Document
104 East 25th St., 10th Floor New York, New York 10010 I www.atc-enviro.com 212.353 8280 ASSOCIATES INC. Fax 212.353 8306
December 6, 2002
Mr. Bernard P. Orlan Director, Environmental Health & Safety New York City Department of Education 28-11 Queens Plaza North Long Island City, NY 11101 -4008
Re: Wipe Samples for Polychlorinated Biphenyls P. S. 89M ATC Project No. 15-19125-0297
Dear Mr. Ori an;
ATC Associates Inc. (ATC) is pleased to provide this report of the results of the wipe samples for polychlorinated biphenyls (PCBs) collected on November 14, 2002 at the referenced location. The New York City Department of Education (DOE) requested this sampling to verify that acceptable indoor environmental conditions are being maintained.
Scope of Work
The samples were collected using sterile gauze pads and hexane as a solvent. The solvent was provided and samples were analyzed by PSC Analytical Services, Inc. (PSC), an American Industrial Hygiene Association-accredited laboratory in Reading, PA. The PCB analysis was performed using EPA Method 8082B.
Tenzin Namgyal, Industrial Hygienist of ATC’s New York City office, collected the samples consistent with generally accepted industrial hygiene practices. The results of the sampling represent conditions found on the dates the samples were collected.
ATC submitted three wipe samples for PCB analyses. Copies of the laboratory report is provided in the Attachment. The surface area for each wipe sample was 100 square centimeters (lOOcnf).
The areas sampled were the P' Floor Hallway floor - north, P' Floor Hallway floor - south and the 2'“* Floor Hallway by the Stairs - south.
CITY_21MC100_003058103
NYC-WTC_000203463
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NYC-WTC_000203463Source: NYC Law Department, mirrored locally
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Report providing wipe sample results for polychlorinated biphenyls (PCBs) collected at P.S. 234M in January 2002.
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Memo letter reporting results of wipe samples for polychlorinated biphenyls collected at P.S. 131M on August 22, 2002.
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