NYC 9/11 Public Portal Document
104 East 25th Street
New York, New York 10010
WWW. ate- envi ro .com
212.353.8280
Fax 212.353.8306
ASSOCIATES INC.
December 6, 2001
Mr. Bernard P. Orlan
Director, Environmental Health & Safety
New York City Board of Education
28-11 Queens Plaza North
Long Island City, NY 11101-4008
Re: Wipe Samples for Polychlorinated Biphenyls
Stuyvesant High School
345 Chambers Street
New York, New York
ATC Project No. 15-19125-0246
Dear Mr. Orlan:
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 and 28, 2001, at the referenced
location. The New York City Board of Education (BOE) requested these samples to evaluate
possible contamination from PCBs in the school building according to the recommendation of H.
A. Bader, consultant to the parents association..
SCOPE OF WORK
Tenzin Namgyal, Industrial Hygienist of ATC’s New York City office, collected the samples on
both days.
The PCBs 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.
ATC’s findings and conclusions are based on the laboratory samples results and the conditions
present in the school at the time of the assessment.
The sampling was performed consistent with generally accepted industrial hygiene practices.
There were inherent limitations created by constraints of time, operational and work practice
variability, variations in contaminant concentrations, and sampling and analytical accuracy. The
results of the sampling represent conditions found on the dates the samples were collected.
CONFIDENTIAL, CITY_21MC100_003433079
SUBJECT TO PROTECTIVE ORDER NO, 2, SEPT. 2008
NYC-WTC_000175779
OCR can misread numbers and units. Confirm readings against the page image before using them.