OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
104 East 25th St New York. New York 10010 wwwatc-enviro com 212 353 8280 Fax 212 353 8306 ASSOCIATES INC.
January 28,2002
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 & Polynuclear Aromatic Hydrocarbons High School for Leadership & Public Service 90 Trinity Place New York, New York ATC Project No. 15-19125-0290
Dear Mr. Orlan-
ATC Associates Inc. (ATC) is pleased to provide this report of the results of the wipe samples for polychlorinated biphenyls (PCBs) and polynuclear aromatic hydrocarbons (PAHs) collected on January 2, 2002, at the referenced location. The New York City Board of Education (BOE) requested these samples to evaluate possible contamination in the school building.
SCOPE OF WORK
Tenzin Namgyal and Wagdi Abdelshahid, Industrial Hygienists of ATC’s New York City office, collected the samples.
The samples were collected using stenle gauze pads and hexane as a solvent. The solvent was provided and samples were analyzed by PSC Analytical Services, Inc. (PSC), an Amencan Industnal Hygiene Association-accredited laboratory in Reading, PA. The PCB analysis was performed using EPA Method 8082B. The PAHs were analyzed by EPA Method 8270C .
The samplmg was performed consistent with generally accepted industnal hygiene practices. There were inherent limitations created by constraints of time, operational and work practice vanability, variations in contaminant concentrations, and sampling and analytical accuracy. The results of the sampling represent conditions found on the dates the samples were collected.
WIPE SAMPLING RESULTS
ATC submitted eight samples for PCBs and PAHs to PSC for analysis. A blank was also submitted A copy of the laboratory report is provided in the Attachment. Samples were taken from surfaces throughout the building. The sample area for each wipe sample was 100 square centimeters (100cm2).
CITY_21MC100_003087796
NYC-WTC_000189690
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NYC-WTC_000179440
Laboratory report from ATC Associates detailing wipe sample results for PCBs and PAHs collected at the School of Economics and Finance.
11 shared non-person entities · 1 shared topics · similarity 0.993
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machine-extracted · confidence unavailable · Check page ↗9 shared non-person entities · 1 shared topics · similarity 0.978
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000177930
Report providing wipe sample results for polychlorinated biphenyls (PCBs) collected at P.S. 234M in January 2002.
9 shared non-person entities · 1 shared topics · similarity 0.978
machine-extracted · confidence unavailable · Check page ↗9 shared non-person entities · 1 shared topics · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗9 shared non-person entities · 1 shared topics · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗9 shared non-person entities · 1 shared topics · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗8 shared non-person entities · 1 shared topics · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗9 shared non-person entities · 1 shared topics · similarity 0.975
machine-extracted · confidence unavailable · Check page ↗8 shared non-person entities · 1 shared topics · similarity 0.975
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NYC-WTC_000179440
Laboratory report from ATC Associates detailing wipe sample results for PCBs and PAHs collected at the School of Economics and Finance.
Similarity score 0.996 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.992 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000177930
Report providing wipe sample results for polychlorinated biphenyls (PCBs) collected at P.S. 234M in January 2002.
Similarity score 0.991 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.991 (not a probability)
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NYC-WTC_000179440
Laboratory report from ATC Associates detailing wipe sample results for PCBs and PAHs collected at the School of Economics and Finance.
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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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