Laboratory report detailing polychlorinated dibenzo-p-dioxins and dibenzofurans wipe sample analysis results for DeSoto School collected in August 2002.
NYC-WTC_000175135–000175136
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
104 East 25th St., 10th Floor J New York, New York 10010 www.atc-enviro.com 212.353.8280 ASSOCIATES INC. Fax 212.353.8306
November 25, 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 Dioxins DeSoto School (P. S. 130 Manhattan) ATC Project No. 15-19125-0345
Dear Mr. Orlan: 1 ATC Associates Inc. (ATC) is pleased to provide this report of the results of the wipe-samples 4 1 for polychlorinated dibenzo-p-dioxins (PCDDs)and dibenzofurans (PCDFs) collected on August 26, 2002, at the referenced location. The New York City Department of Education (DOE) requested these samples to evaluate possible contamination in the school building.
Scope of Work
The samples were collected using gauze pads and hexane as a solvent. The solvent was provided and samples were analyzed by Pace Analytical Services, Inc. (Pace) of Minneapolis, MN, a laboratory experienced in dioxm analysis. The analysis was performed by modified EPA Method 8290 using combined capillary column gas chromatography/high resolution mass spectrometry.
Wagdi Abdelshahid, Industrial Hygienist of ATC’s New York City office, collected the samples - 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 date the samples were collected.
Results
ATC submitted three wipe samples for PCDDs/PCDFs (plus one blank) to Pace for analysis. Samples were taken from representative floor areas throughout the building. The sample area for each sample was one square meter (1 m2). The areas sampled were:
• Main Lobby; • 4^4 Floor Hall by Stair C; • 5^ Floor Hall by Stair B.
CONFIDENTIAL, CITY_21MC100_003430330 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175135
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NYC-WTC_000175184
Report from ATC Associates detailing dioxin and dibenzofuran wipe sample results collected at PS 130 Manhattan in August 2002.
10 shared non-person entities · 1 shared topics · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175155
ATC Associates report on dioxin and dibenzofuran wipe samples collected at DeSoto School in August 2002.
10 shared non-person entities · 1 shared topics · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175113
Report detailing wipe sample results for polychlorinated dibenzo-p-dioxins and dibenzofurans collected at DeSoto School (P.S. 130) in August 2002.
10 shared non-person entities · 1 shared topics · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175210
Report submitted to the NYC Department of Education regarding dioxin and dibenzofuran wipe sample results from DeSoto School in August 2002.
10 shared non-person entities · 1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175252
Memo reporting results of wipe samples for polychlorinated dibenzo-p-dioxins and dibenzofurans collected at P.S. 126M on August 29, 2002.
10 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · similarity 0.994
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NYC-WTC_000175113
Report detailing wipe sample results for polychlorinated dibenzo-p-dioxins and dibenzofurans collected at DeSoto School (P.S. 130) in August 2002.
Similarity score 1.000 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175155
ATC Associates report on dioxin and dibenzofuran wipe samples collected at DeSoto School in August 2002.
Similarity score 0.999 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175184
Report from ATC Associates detailing dioxin and dibenzofuran wipe sample results collected at PS 130 Manhattan in August 2002.
Similarity score 0.999 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175210
Report submitted to the NYC Department of Education regarding dioxin and dibenzofuran wipe sample results from DeSoto School in August 2002.
Similarity score 0.999 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.999 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.998 (not a probability)
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